SVB Financial (SIVBQ) 10-Q10 May 212021 Q1 Quarterly reportFinancial data

Company Profile

Document and Entity Information

Document and Entity Information - shares	3 Months Ended
Document and Entity Information - shares	Mar. 31, 2021	Apr. 30, 2021
Entity Information [Line Items]
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Mar. 31, 2021
Document Transition Report	false
Entity File Number	001-39154
Entity Registrant Name	SVB FINANCIAL GROUP
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	91-1962278
Entity Address, Address Line One	3003 Tasman Drive
Entity Address, City or Town	Santa Clara
Entity Address, State or Province	CA
Entity Address, Postal Zip Code	95054-1191
City Area Code	408
Local Phone Number	654-7400
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Large Accelerated Filer
Entity Emerging Growth Company	false
Entity Small Business	false
Entity Shell Company	false
Entity Common Stock, Shares Outstanding		54,315,140
Entity Central Index Key	0000719739
Current Fiscal Year End Date	--12-31
Document Fiscal Year Focus	2021
Document Fiscal Period Focus	Q1
Amendment Flag	false
Common Stock
Entity Information [Line Items]
Title of 12(b) Security	Common Stock, par value $0.001 per share
Trading Symbol	SIVB
Security Exchange Name	NASDAQ
Preferred Stock, Series A
Entity Information [Line Items]
Title of 12(b) Security	Depositary shares, each representing a 1/40th ownership interest in a share of 5.250% Fixed-Rate Non-Cumulative Perpetual Preferred Stock, Series A
Trading Symbol	SIVBP
Security Exchange Name	NASDAQ

Interim Consolidated Balance Sh

Interim Consolidated Balance Sheets - USD ($) $ in Thousands	Mar. 31, 2021	Dec. 31, 2020
Assets:
Cash and cash equivalents	$ 21,254,859	$ 17,674,763
Available-for-sale securities, at fair value (cost of $26,159,161 and $30,244,896, respectively)	25,986,471	30,912,438
Held-to-maturity securities, at amortized cost and net of allowance for credit losses of $1,112 and $392 (fair value of $41,186,735 and $17,216,871, respectively)	41,164,620	16,592,153
Non-marketable and other equity securities	1,857,761	1,802,235
Total investment securities	69,008,852	49,306,826
Loans, amortized cost	47,675,166	45,181,488
Allowance for credit losses: loans	(391,751)	(447,765)
Net loans	47,283,415	44,733,723
Premises and equipment, net of accumulated depreciation and amortization	179,674	175,818
Goodwill	142,685	142,685
Other intangible assets, net	59,325	61,435
Lease right-of-use assets	233,696	209,932
Accrued interest receivable and other assets	4,184,114	3,205,825
Total assets	142,346,620	115,511,007
Liabilities:
Noninterest-bearing demand deposits	84,439,997	66,519,240
Interest-bearing deposits	39,710,109	35,462,567
Total deposits	124,150,106	101,981,807
Short-term borrowings	38,434	20,553
Lease liabilities	287,413	259,554
Other liabilities	6,411,705	3,971,974
Long-term debt	1,338,183	843,628
Total liabilities	132,225,841	107,077,516
Commitments and contingencies (Note 14 and Note 17)
SVBFG stockholders’ equity:
Preferred stock, $0.001 par value, 20,000,000 shares authorized; 357,500 and 350,000 shares issued and outstanding, respectively	1,079,333	340,138
Common stock, $0.001 par value, 150,000,000 shares authorized; 54,001,797 shares and 51,888,463 shares issued and outstanding, respectively	54	52
Additional paid-in capital	2,590,576	1,585,244
Retained earnings	6,203,969	5,671,749
Accumulated other comprehensive income	20,960	622,517
Total SVBFG stockholders’ equity	9,894,892	8,219,700
Noncontrolling interests	225,887	213,791
Total equity	10,120,779	8,433,491
Total liabilities and total equity	$ 142,346,620	$ 115,511,007

Interim Consolidated Balance _2

Interim Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Thousands	Mar. 31, 2021	Dec. 31, 2020
Statement of Financial Position [Abstract]
Preferred stock, par value, in usd per share	$ 0.001	$ 0.001
Preferred stock, shares authorized	20,000,000	20,000,000
Preferred stock, shares issued	357,500	350,000
Common stock, par value, in usd per share	$ 0.001	$ 0.001
Common stock, shares authorized	150,000,000	150,000,000
Common stock, shares, issued	54,001,797	51,888,463
Common stock, shares outstanding	54,001,797	51,888,463
Available-for-sale securities, cost	$ 26,159,161	$ 30,244,896
Held-to-maturity securities	41,186,735	17,216,871
Allowance for Credit Losses	$ 1,112	$ 392

Interim Consolidated Statements

Interim Consolidated Statements of Income - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Interest income:
Loans	$ 430,422	$ 382,569
Investment securities:
Taxable	224,162	154,385
Non-taxable	20,897	12,824
Federal funds sold, securities purchased under agreements to resell and other short-term investment securities	3,265	17,624
Total interest income	678,746	567,402
Interest expense:
Deposits	10,437	37,398
Borrowings	8,730	5,867
Total interest expense	19,167	43,265
Net interest income	659,579	524,137
Provision for credit losses	18,679	243,480
Net interest income after provision for credit losses	640,900	280,657
Noninterest income:
Gains on investment securities, net	167,078	46,055
Gains on equity warrant assets, net	221,685	13,395
Client investment fees	20,065	43,393
Foreign exchange fees	57,393	47,505
Credit card fees	27,567	28,304
Deposit service charges	25,151	24,589
Lending related fees	15,657	13,125
Letters of credit and standby letters of credit fees	13,051	11,542
Investment banking revenue	142,302	46,867
Commissions	24,439	16,022
Other	29,792	11,137
Total noninterest income	744,180	301,934
Noninterest expense:
Compensation and benefits	445,425	255,586
Professional services	81,343	38,705
Premises and equipment	32,822	26,940
Net occupancy	17,681	18,346
Business development and travel	3,811	14,071
FDIC and state assessments	9,463	5,234
Other	45,456	40,703
Total noninterest expense	636,001	399,585
Income before income tax expense	749,079	183,006
Income tax expense	187,315	49,357
Net income before noncontrolling interests	561,764	133,649
Net income attributable to noncontrolling interests	(24,950)	1,973
Preferred stock dividends	(4,594)	(3,369)
Net income available to common stockholders	$ 532,220	$ 132,253
Earnings per common share—basic (dollars per share)	$ 10.20	$ 2.56
Earnings per common share—diluted (dollars per share)	$ 10.03	$ 2.55

Interim Consolidated Statemen_2

Interim Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Statement of Comprehensive Income [Abstract]
Net income before noncontrolling interests	$ 561,764	$ 133,649
Change in foreign currency cumulative translation gains and losses:
Foreign currency translation losses	(43)	(9,120)
Related tax benefit	13	2,556
Change in unrealized gains and losses on available-for-sale securities:
Unrealized holding (losses) gains	(823,329)	543,881
Related tax benefit (expense)	228,876	(150,746)
Reclassification adjustment for gains included in net income	0	(61,165)
Related tax expense	0	16,953
Cumulative-effect adjustment for unrealized gains on securities transferred from available-for-sale to held-to-maturity	8,710	0
Related tax expense	(2,421)	0
Amortization of unrealized holding losses on securities transferred from available-for-sale to held-to-maturity	(2,851)	(552)
Related tax benefit	793	153
Change in unrealized gains and losses on cash flow hedges:
Unrealized gains	0	231,920
Related tax expense	0	(64,281)
Reclassification adjustment for gains included in net income	(15,657)	(2,089)
Related tax expense	4,352	579
Other comprehensive (loss) income, net of tax	(601,557)	508,089
Comprehensive (loss) income	(39,793)	641,738
Comprehensive (income) loss attributable to noncontrolling interests	(24,950)	1,973
Comprehensive (loss) income attributable to SVBFG	$ (64,743)	$ 643,711

Interim Consolidated Statemen_3

Interim Consolidated Statements of Stockholders' Equity - USD ($) $ in Thousands	Total	Series B Preferred Stock	Cumulative adjustment for the adoption of amendment	Preferred Stock	Preferred StockSeries B Preferred Stock	Common Stock	Additional Paid-in Capital	Retained Earnings	Retained EarningsCumulative adjustment for the adoption of amendment	Accumulated Other Comprehensive Income (Loss)	Total SVBFG Stockholders’ Equity	Total SVBFG Stockholders’ EquitySeries B Preferred Stock	Total SVBFG Stockholders’ EquityCumulative adjustment for the adoption of amendment	Noncontrolling Interests
Balance (in shares) at Dec. 31, 2019						51,655,607,000
Balance, beginning of period, net of tax at Dec. 31, 2019	$ 6,621,080			$ 340,138		$ 52	$ 1,470,071	$ 4,575,601		$ 84,445	$ 6,470,307			$ 150,773
Balance, beginning of period, net of tax (Accounting Standards Update 2017-08) at Dec. 31, 2019			$ (35,049)						$ (35,049)				$ (35,049)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Common stock issued under employee benefit plans, net of restricted stock cancellations (in shares)						66,864,000
Common stock issued under employee benefit plans, net of restricted stock cancellations	(3,031)					$ 0	(3,031)				(3,031)
Common stock issued under ESOP (in shares)						12,094,000
Common stock issued under ESOP	2,447						2,447				2,447
Net income	133,649							135,622			135,622			(1,973)
Capital calls and distributions, net	(328)													(328)
Net change in unrealized gains and losses on AFS securities, net of tax	348,923									348,923	348,923
Amortization of unrealized holding gains and losses on securities transferred from AFS to HTM, net of tax	(399)									(399)	(399)
Foreign currency translation adjustments, net of tax	(6,564)									(6,564)	(6,564)
Net change in unrealized gains and losses on cash flow hedges, net of tax	166,129									166,129	166,129
Share-based compensation, net	19,171						19,171				19,171
Common stock repurchases (in shares)						(244,223,000)
Common stock repurchases	(60,020)					$ 0		(60,020)			(60,020)
Dividends on preferred stock	(3,369)							(3,369)			(3,369)
Other	582						582				582
Balance (in shares) at Mar. 31, 2020						51,490,342,000
Balance, end of period, net of tax at Mar. 31, 2020	7,183,221			340,138		$ 52	1,489,240	4,612,785		592,534	7,034,749			148,472
Balance (in shares) at Dec. 31, 2020						51,888,463,000
Balance, beginning of period, net of tax at Dec. 31, 2020	8,433,491			340,138		$ 52	1,585,244	5,671,749		622,517	8,219,700			213,791
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Common stock issued under employee benefit plans, net of restricted stock cancellations (in shares)						107,234,000
Common stock issued under employee benefit plans, net of restricted stock cancellations	(1,421)					$ 0	(1,421)				(1,421)
Common stock issued under ESOP (in shares)						6,100,000
Common stock issued under ESOP	3,138						3,138				3,138
Issuance of stock	972,115	$ 739,195				$ 2	972,113				972,115	$ 739,195
Issuance of stock (in shares)					739,195,000	2,000,000,000
Net income	561,764							536,814			536,814			24,950
Capital calls and distributions, net	(12,854)													(12,854)
Net change in unrealized gains and losses on AFS securities, net of tax	(594,453)									(594,453)	(594,453)
Amortization of unrealized holding gains and losses on securities transferred from AFS to HTM, net of tax	4,231									4,231	4,231
Foreign currency translation adjustments, net of tax	(30)									(30)	(30)
Net change in unrealized gains and losses on cash flow hedges, net of tax	(11,305)									(11,305)	(11,305)
Share-based compensation, net	26,691						26,691				26,691
Dividends on preferred stock	(4,594)							(4,594)			(4,594)
Other	4,811						4,811				4,811
Balance (in shares) at Mar. 31, 2021						54,001,797,000
Balance, end of period, net of tax at Mar. 31, 2021	$ 10,120,779			$ 1,079,333		$ 54	$ 2,590,576	$ 6,203,969		$ 20,960	$ 9,894,892			$ 225,887

Interim Consolidated Statemen_4

Interim Consolidated Statements of Cash Flows - USD ($)	3 Months Ended
Interim Consolidated Statements of Cash Flows - USD ($)	Mar. 31, 2021	Mar. 31, 2020
Cash flows from operating activities:
Net income before noncontrolling interests	$ 561,764,000	$ 133,649,000
Adjustments to reconcile net income to net cash provided by operating activities:
Provision for credit losses	18,679,000	243,480,000
Gains on investment securities, net	(167,078,000)	(46,055,000)
Distributions of earnings from non-marketable and other equity securities	21,581,000	12,346,000
Depreciation and amortization	30,949,000	24,824,000
Amortization of premiums and discounts on investment securities, net	49,161,000	13,565,000
Amortization of share-based compensation	26,691,000	19,171,000
Amortization of deferred loan fees	(52,903,000)	(33,016,000)
Deferred income tax expense (benefit)	57,513,000	(60,126,000)
Excess tax benefit from exercise of stock options and vesting of restricted shares	(10,888,000)	(2,575,000)
Changes in other assets and liabilities:
Accrued interest receivable and payable, net	(40,913,000)	23,982,000
Accounts receivable and payable, net	10,462,000	(45,311,000)
Income tax receivable and payable, net	92,515,000	66,581,000
Accrued compensation	(279,210,000)	(236,834,000)
Foreign exchange spot contracts, net	107,418,000	(12,583,000)
Proceeds from termination of interest rate swaps	0	180,500,000
Other, net	(195,907,000)	(69,013,000)
Net cash provided by operating activities	213,922,000	168,125,000
Cash flows from investing activities:
Purchases of available-for-sale securities	(450,009,000)	(1,538,553,000)
Proceeds from sales of available-for-sale securities	0	2,654,212,000
Proceeds from maturities and paydowns of available-for-sale securities	1,653,915,000	785,692,000
Purchases of held-to-maturity securities	(21,685,125,000)	(358,650,000)
Proceeds from maturities and paydowns of held-to-maturity securities	1,769,795,000	646,212,000
Purchases of non-marketable and other equity securities	(20,626,000)	(12,177,000)
Proceeds from sales and distributions of capital of non-marketable and other securities	274,435,000	45,720,000
Net increase in loans	(2,538,473,000)	(2,796,409,000)
Purchases of premises and equipment	(13,851,000)	(25,088,000)
Net cash used for investing activities	(21,009,939,000)	(599,041,000)
Cash flows from financing activities:
Net increase in deposits	22,168,299,000	154,150,000
Net increase in short-term borrowings	17,881,000	3,120,732,000
Proceeds from issuance of long-term debt	494,355,000	0
(Distributions to noncontrolling interests), net of contributions from noncontrolling interests	(12,854,000)	(328,000)
Net proceeds from the issuance of preferred stock	739,195,000	0
Payment of preferred stock dividend	(4,594,000)	(3,369,000)
Common stock repurchases	0	(60,020,000)
Proceeds from issuance of common stock, ESPP and ESOP, net of restricted stock awards	973,831,000	(584,000)
Net cash provided by financing activities	24,376,113,000	3,210,581,000
Net increase in cash and cash equivalents	3,580,096,000	2,779,665,000
Cash and cash equivalents at beginning of period	17,674,763,000	6,781,783,000
Cash and cash equivalents at end of period	21,254,859,000	9,561,448,000
Cash paid during the period for:
Interest	16,720,000	46,145,000
Income taxes	28,841,000	31,988,000
Noncash items during the period:
Changes in unrealized gains and losses on available-for-sale securities, net of tax	(594,453,000)	348,923,000
Transfers from available-for-sale securities to held-to-maturity	2,867,891,000	0
Equity warrant assets
Changes in fair values of derivatives, net	(29,445,000)	18,574,000
Derivative
Changes in fair values of derivatives, net	$ 13,533,000	$ (63,034,000)

Basis of Presentation

Basis of Presentation	3 Months Ended
Basis of Presentation	Mar. 31, 2021
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Basis of Presentation	Basis of Presentation SVB Financial Group is a diversified financial services company, as well as a bank holding company and a financial holding company. SVB Financial was incorporated in the state of Delaware in March 1999. Through our various subsidiaries and divisions, we offer a diverse set of banking and financial products and services to support our clients of all sizes and stages throughout their life cycles. In these notes to our unaudited interim consolidated financial statements, when we refer to “SVB Financial Group,” “SVBFG," the “Company,” “we,” “our,” “us” or use similar words, we mean SVB Financial Group and all of its subsidiaries collectively, including Silicon Valley Bank (the “Bank”), unless the context requires otherwise. When we refer to “SVB Financial” or the “Parent” we are referring only to the parent company, SVB Financial Group (not including subsidiaries). The accompanying unaudited interim consolidated financial statements reflect all adjustments of a normal and recurring nature that are, in the opinion of management, necessary to fairly present our financial position, results of operations and cash flows in accordance with GAAP. Such unaudited interim consolidated financial statements have been prepared in accordance with the instructions to Form 10-Q pursuant to the rules and regulations of the SEC. Certain information and footnote disclosures normally included in financial statements prepared in accordance with GAAP have been condensed or omitted pursuant to such rules and regulations. The results of operations for the three months ended March 31, 2021 are not necessarily indicative of results to be expected for any future periods. These unaudited interim consolidated financial statements should be read in conjunction with our Annual Report on Form 10-K for the year ended December 31, 2020 (“2020 Form 10-K”). Use of Estimates and Assumptions The preparation of unaudited interim consolidated financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities, the disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the reporting period. Actual results could differ from those estimates. Estimates may change as new information is obtained. Significant items that are subject to such estimates include: 1) measurements of fair value, the valuation of non-marketable and other equity securities and the valuation of equity warrant assets, 2) income taxes, and 3) the adequacy of the allowance for credit losses for loans and for unfunded credit commitments. Principles of Consolidation and Presentation Our unaudited interim consolidated financial statements include the accounts of SVB Financial Group and consolidated entities. We consolidate voting entities in which we have control through voting interests or entities through which we have a controlling financial interest in a variable interest entity (“VIE”). We determine whether we have a controlling financial interest in a VIE by determining if we have: (a) the power to direct the activities of the VIE that most significantly impact the entity’s economic performance, (b) the obligation to absorb the expected losses or (c) the right to receive the expected returns of the entity. Generally, we have significant variable interests if our commitments to a limited partnership investment represent a significant amount of the total commitments to the entity. We also evaluate the impact of related parties on our determination of variable interests in our consolidation conclusions. We consolidate VIEs in which we are the primary beneficiary based on a controlling financial interest. If we are not the primary beneficiary of a VIE, we record our pro-rata interests based on our ownership percentage. VIEs are entities where investors lack sufficient equity at risk for the entity to finance its activities without additional subordinated financial support or equity investors, as a group, lack one of the following characteristics: (a) the power to direct the activities that most significantly impact the entity’s economic performance, (b) the obligation to absorb the expected losses of the entity or (c) the right to receive the expected returns of the entity. We assess VIEs to determine if we are the primary beneficiary of a VIE. A primary beneficiary is defined as a variable interest holder that has a controlling financial interest. A controlling financial interest requires both: (a) the power to direct the activities that most significantly impact the VIE’s economic performance and (b) obligation to absorb losses or receive benefits of a VIE that could potentially be significant to a VIE. Under this analysis, we also evaluate kick-out rights and other participating rights, which could provide us a controlling financial interest. The primary beneficiary of a VIE is required to consolidate the VIE. We also evaluate fees paid to managers of our limited partnership investments. We exclude those fee arrangements that are not deemed to be variable interests from the analysis of our interests in our investments in VIEs and the determination of a primary beneficiary, if any. Fee arrangements based on terms that are customary and commensurate with the services provided are deemed not to be variable interests and are, therefore, excluded. All significant intercompany accounts and transactions with consolidated entities have been eliminated. We have not provided financial or other support during the periods presented to any VIE that we were not previously contractually required to provide. Reclassifications Certain prior period amounts primarily related to presentation changes to our table summarizing the activity relating to our allowance for credit losses for loans, have been reclassified to conform to current period presentation. Summary of Significant Accounting Policies The accompanying unaudited interim consolidated financial statements have been prepared on a consistent basis with the accounting policies described in Consolidated Financial Statements and Supplementary Data — Note 2 — “Summary of Significant Accounting Policies” under Part II, Item 8 of our 2020 Form 10-K. Adoption of New Accounting Standards In December 2019, the FASB issued Accounting Standards Update No. 2019-12, Income Taxes (Topic 740): Simplifying the Accounting for Income Taxes (ASU 2019-12), which is part of the FASB’s initiative to reduce cost and complexity related to accounting for income taxes. ASU 2019-12 eliminates certain exceptions to the general principles of ASC 740, Income Taxes, and simplifies income tax accounting in several areas. We adopted the guidance on January 1, 2021, on a modified retrospective basis. The adoption did not have a material impact on our financial position, results of operations, cash flows or disclosures.

Stockholders' Equity and EPS

Stockholders' Equity and EPS	3 Months Ended
Stockholders' Equity and EPS	Mar. 31, 2021
Equity and Earnings Per Share [Abstract]
Stockholders' Equity and EPS	Stockholders' Equity and EPS Accumulated Other Comprehensive Income The following table summarizes the items reclassified out of accumulated other comprehensive income into the Consolidated Statements of Income (unaudited) for the three months ended March 31, 2021 and 2020: Three months ended March 31, (Dollars in thousands) Income Statement Location 2021 2020 Reclassification adjustment for gains on available-for-sale securities included in net income Gains on investment securities, net $ — $ (61,165) Related tax expense Income tax expense — 16,953 Reclassification adjustment for gains on cash flow hedges included in net income Net interest income (15,657) (2,089) Related tax expense Income tax expense 4,352 579 Total reclassification adjustment for gains included in net income, net of tax $ (11,305) $ (45,722) The table below summarizes the activity relating to net gains and losses on our cash flow hedges included in accumulated other comprehensive income for the three months ended March 31, 2021 and 2020. Refer to Note 10 — “Derivative Financial Instruments” for additional information regarding the termination of our cash flow hedges during the quarter ended March 31, 2020. Over the next 12 months, we expect that approximately $62.5 million in accumulated other comprehensive income ("AOCI") at March 31, 2021, related to unrealized gains will be reclassified out of AOCI and recognized in net income. Three months ended March 31, (Dollars in thousands) 2021 2020 Balance, beginning of period, net of tax $ 129,273 $ (2,130) Net increase in fair value, net of tax — 167,639 Net realized gain reclassified to net income, net of tax (11,305) (1,510) Balance, end of period, net of tax $ 117,968 $ 163,999 EPS Basic EPS is the amount of earnings available to each share of common stock outstanding during the reporting period. Diluted EPS is the amount of earnings available to each share of common stock outstanding during the reporting period adjusted to include the effect of potentially dilutive common shares. Potentially dilutive common shares include incremental shares issuable for stock options and restricted stock unit awards outstanding under our 2006 Equity Incentive Plan and our ESPP. Potentially dilutive common shares are excluded from the computation of dilutive EPS in periods in which the effect would be antidilutive. The following is a reconciliation of basic EPS to diluted EPS for the three months ended March 31, 2021 and 2020: Three months ended March 31, (Dollars and shares in thousands, except per share amounts) 2021 2020 Numerator: Net income available to common stockholders $ 532,220 $ 132,253 Denominator: Weighted average common shares outstanding—basic 52,180 51,565 Weighted average effect of dilutive securities: Stock options and ESPP 294 217 Restricted stock units and awards 602 162 Weighted average common shares outstanding—diluted 53,076 51,944 Earnings per common share: Basic $ 10.20 $ 2.56 Diluted 10.03 2.55 The following table summarizes the weighted-average common shares excluded from the diluted EPS calculation due to the antidilutive effect for the three months ended March 31, 2021 and 2020: Three months ended March 31, (Shares in thousands) 2021 2020 Stock options — 206 Restricted stock units 18 119 Total 18 325 Common Stock On March 22, 2021, to support the continued growth of our balance sheet, we issued and sold 2,000,000 shares of common stock at a price of $500.00 per share. We received net proceeds of $972.1 million after deducting underwriting discounts and commissions. On April 14, 2021, the Company issued and sold additional shares of common stock. Refer to Note 19—“Subsequent Events” for additional information. Preferred Stock On December 9, 2019, the Company issued 5.25% Non-Cumulative Perpetual Series A Preferred Stock (''Series A Preferred Stock''). The public offering consists of 14,000,000 depositary shares, each representing a 1/40th ownership interest in a shares of the Series A preferred stock with $0.001 par value and liquidation preference of $1,000 per share, or $25 per depositary share. The Series A Preferred Stock is redeemable at the Company’s option, subject to all applicable regulatory approvals, on or after February 15, 2025. On February 2, 2021, the Company issued 4.10% Non-Cumulative Perpetual Series B Preferred Stock (''Series B Preferred Stock''). The public offering consists of 750,000 depositary shares, each representing a 1/100th ownership interest in shares of Series B Preferred Stock with $0.001 par value and liquidation preferences of $100,000 per share, or $1,000 per depositary share. Dividends, if approved and declared by the Board of Directors, are payable quarterly, in arrears, at a rate per annum equal to (i) 4.10 percent from the original issue date to, but excluding, February 15, 2031 and (ii) for the February 15, 2031 dividend date and during each subsequent ten year period, the ten-year treasury rate (calculated three As of March 31, 2021, there were 350,000 shares issued and outstanding of Series A Preferred Stock and 7,500 s hares issued and outstanding of Series B Preferred Stock, which had a carrying value of $340.1 million and $739.2 million, respectively, and liquidation preferences of $350.0 million and $750.0 million, respectively. The following table summarizes our preferred stock at March 31, 2021: Series Description Amount outstanding (in millions) Carrying value Shares issued and outstanding Par Value Ownership interest per depositary share Liquidation preference per depositary share 2021 dividends paid per depositary share Series A 5.250% Fixed-Rate Non-Cumulative Perpetual Preferred Stock $ 350 $ 340.1 350,000 $ 0.001 1/40 th $ 25 $ 0.33 Series B 4.100% Fixed-Rate Non-Cumulative Perpetual Preferred Stock 750 739.2 7,500 0.001 1/100 th 1,000 —

Share-Based Compensation

Share-Based Compensation	3 Months Ended
Share-Based Compensation	Mar. 31, 2021
Share-based Payment Arrangement [Abstract]
Share-Based Compensation	Share-Based Compensation For the three months ended March 31, 2021 and 2020, we recorded share-based compensation and related tax benefits as follows: Three months ended March 31, (Dollars in thousands) 2021 2020 Share-based compensation expense $ 26,691 $ 19,171 Income tax benefit related to share-based compensation expense (6,278) (4,440) Unrecognized Compensation Expense As of March 31, 2021, unrecognized share-based compensation expense was as follows: (Dollars in thousands) Unrecognized Weighted Average Expected Stock options $ 12,059 2.26 Restricted stock units and awards 127,759 2.65 Total unrecognized share-based compensation expense $ 139,818 Share-Based Payment Award Activity The table below provides stock option information related to the 2006 Equity Incentive Plan for the three months ended March 31, 2021: Options Weighted Weighted Average Remaining Contractual Life - in Years Aggregate Outstanding at December 31, 2020 559,001 $ 191.29 Exercised (83,516) 136.14 Forfeited (604) 254.35 Outstanding at March 31, 2021 474,881 200.91 4.17 $ 139,021,519 Vested and expected to vest at March 31, 2021 457,920 200.35 4.12 134,311,416 Exercisable at March 31, 2021 193,079 166.23 2.58 63,219,304 The aggregate intrinsic value of outstanding options shown in the table above represents the pre-tax intrinsic value based on our closing stock price of $493.66 as of March 31, 2021. The total intrinsic value of options exercised during the three months ended March 31, 2021 was $28.7 million, compared to $8.3 million for the comparable 2020 period. The table below provides information for restricted stock units and awards under the 2006 Equity Incentive Plan for the three months ended March 31, 2021: Shares Weighted Average Grant Date Fair Value Nonvested at December 31, 2020 995,049 $ 227.12 Granted 57,323 499.90 Vested (73,716) 256.76 Forfeited (17,579) 263.28 Nonvested at March 31, 2021 961,077 240.46

Variable Interest Entities

Variable Interest Entities	3 Months Ended
Variable Interest Entities	Mar. 31, 2021
Investments In Variable Interest Entities [Abstract]
Variable Interest Entities	Variable Interest Entities Our involvement with VIEs includes our investments in venture capital and private equity funds, debt funds, private and public portfolio companies and qualified affordable housing projects. The following table presents the carrying amounts and classification of significant variable interests in consolidated and unconsolidated VIEs as of March 31, 2021 and December 31, 2020: (Dollars in thousands) Consolidated VIEs Unconsolidated VIEs Maximum Exposure to Loss in Unconsolidated VIEs March 31, 2021: Assets: Cash and cash equivalents $ 11,392 $ — $ — Non-marketable and other equity securities (1) 450,537 867,187 867,187 Accrued interest receivable and other assets 13,094 — — Total assets $ 475,023 $ 867,187 $ 867,187 Liabilities: Other liabilities (1) 11,041 372,516 — Total liabilities $ 11,041 $ 372,516 $ — December 31, 2020: Assets: Cash and cash equivalents $ 14,859 $ — $ — Non-marketable and other equity securities (1) 422,049 858,617 858,617 Accrued interest receivable and other assets 937 — — Total assets $ 437,845 $ 858,617 $ 858,617 Liabilities: Other liabilities (1) 1,410 370,208 — Total liabilities $ 1,410 $ 370,208 $ — (1) Included in our unconsolidated non-marketable and other equity securities portfolio at March 31, 2021 and December 31, 2020 are investments in qualified affordable housing projects of $617.0 million and $616.2 million, respectively, and related other liabilities consisting of unfunded commitments of $372.5 million and $370.2 million, respectively. Non-marketable and other equity securities Our non-marketable and other equity securities portfolio primarily represents investments in venture capital and private equity funds, SPD Silicon Valley Bank Co., Ltd. (the Bank's joint venture bank in China (“SPD-SVB”)), debt funds, private and public portfolio companies and qualified affordable housing projects. Many of these are investments held by SVB Financial in third-party funds in which we do not have controlling or significant variable interests. These investments represent our unconsolidated VIEs in the table above. Our non-marketable and other equity securities portfolio also includes investments from SVB Capital. SVB Capital is the funds management business of SVB Financial Group, which focuses primarily on venture capital investments. The SVB Capital family of funds is comprised of direct venture funds that invest in companies and funds of funds that invest in other venture capital funds. We have a controlling and significant variable interest in three of these SVB Capital funds and consolidate these funds for financial reporting purposes. All investments are generally nonredeemable, and distributions are expected to be received through the liquidation of the underlying investments throughout the life of the investment fund. Investments may only be sold or transferred subject to the notice and approval provisions of the underlying investment agreement. Subject to applicable regulatory requirements, including the Volcker Rule, we also make commitments to invest in venture capital and private equity funds. For additional details, see Note 14 — “Off-Balance Sheet Arrangements, Guarantees and Other Commitments.” The Bank also has variable interests in low income housing tax credit funds, in connection with fulfilling its responsibilities under the Community Reinvestment Act ("CRA"), that are designed to generate a return primarily through the realization of federal tax credits. These investments are typically limited partnerships in which the general partner, other than the Bank, holds the power over significant activities of the VIE; therefore, these investments are not consolidated. For additional information on our investments in qualified affordable housing projects, see Note 6 — “Investment Securities."

Cash and Cash Equivalents

Cash and Cash Equivalents	3 Months Ended
Cash and Cash Equivalents	Mar. 31, 2021
Cash and Cash Equivalents [Abstract]
Cash and Cash Equivalents	Cash and Cash Equivalents The following table details our cash and cash equivalents at March 31, 2021 and December 31, 2020: (Dollars in thousands) March 31, 2021 December 31, 2020 Cash and due from banks (1) $ 20,966,421 $ 17,447,916 Securities purchased under agreements to resell (2) 288,438 226,847 Total cash and cash equivalents $ 21,254,859 $ 17,674,763 (1) At March 31, 2021 and December 31, 2020, $16.6 billion and $13.7 billion, respectively, of our cash and due from banks was deposited at the Federal Reserve Bank and was earning interest at the Federal Funds target rate, and interest-earning deposits in other financial institutions were $3.4 billion and $3.0 billion, respectively. (2) At March 31, 2021 and December 31, 2020, securities purchased und er agreements to resell were collateralized by U.S. Treasury securities and U.S. agency securities with aggregate fair value s of $294.5 million a n d $232.2 million, respectively. None of these securities were sold or repledged as of March 31, 2021 and December 31, 2020.

Investment Securities

Investment Securities	3 Months Ended
Investment Securities	Mar. 31, 2021
Investments, Debt and Equity Securities [Abstract]
Investment Securities	Investment Securities Our investment securities portfolio consists of: (i) an available-for-sale securities portfolio and a held-to-maturity securities portfolio, both of which represent interest-earning investment securities, and (ii) a non-marketable and other equity securities portfolio, which primarily represents investments managed as part of our funds management business, investments in qualified affordable housing projects, as well as public equity securities held as a result of equity warrant assets exercised. Available-for-Sale Securities The major components of our available-for-sale investment securities portfolio at March 31, 2021 and December 31, 2020 are as follows: March 31, 2021 (Dollars in thousands) Amortized Unrealized Unrealized Carrying Available-for-sale securities, at fair value: U.S. Treasury securities $ 4,244,175 $ 195,444 $ (1,223) $ 4,438,396 U.S. agency debentures 230,375 1,155 (5,435) 226,095 Foreign government debt securities 23,454 — (4) 23,450 Residential mortgage-backed securities: Agency-issued mortgage-backed securities 12,663,089 85,210 (233,388) 12,514,911 Agency-issued collateralized mortgage obligations—fixed rate 7,471,566 19,567 (234,507) 7,256,626 Agency-issued commercial mortgage-backed securities 1,526,502 24,283 (23,792) 1,526,993 Total available-for-sale securities $ 26,159,161 $ 325,659 $ (498,349) $ 25,986,471 December 31, 2020 (Dollars in thousands) Amortized Unrealized Unrealized Carrying Available-for-sale securities, at fair value: U.S. Treasury securities $ 4,197,858 $ 271,977 $ (107) $ 4,469,728 U.S. agency debentures 233,727 4,165 (585) 237,307 Foreign government debt securities 24,491 1 — 24,492 Residential mortgage-backed securities: Agency-issued mortgage-backed securities 13,271,482 232,850 (651) 13,503,681 Agency-issued collateralized mortgage obligations—fixed rate 8,076,832 40,010 (10,278) 8,106,564 Agency-issued commercial mortgage-backed securities 4,440,506 133,527 (3,367) 4,570,666 Total available-for-sale securities $ 30,244,896 $ 682,530 $ (14,988) $ 30,912,438 The following table summarizes sale activity of available-for-sale securities during the three months ended March 31, 2021 and 2020 as recorded in the line item “Gains on investment securities, net," a component of noninterest income: Three months ended March 31, (Dollars in thousands) 2021 2020 Sales proceeds $ — $ 2,654,212 Net realized gains and losses: Gross realized gains — 61,165 Gross realized losses — — Net realized gains $ — $ 61,165 The following tables summarize our available-for-sale securities in an unrealized loss position for which an allowance for credit losses has not been recorded and summarized into categories of less than 12 months, or 12 months or longer, as of March 31, 2021 and December 31, 2020: March 31, 2021 Less than 12 months 12 months or longer (1) Total (Dollars in thousands) Fair Value of Unrealized Fair Value of Unrealized Fair Value of Unrealized Available-for-sale securities: U.S. Treasury securities $ 301,607 $ (1,223) $ — $ — $ 301,607 $ (1,223) U.S. agency debentures 128,228 (5,435) — — 128,228 (5,435) Foreign government debt securities 23,450 (4) — — 23,450 (4) Residential mortgage-backed securities: Agency-issued mortgage-backed securities 9,608,598 (233,388) — — 9,608,598 (233,388) Agency-issued collateralized mortgage obligations—fixed rate 5,248,844 (234,507) — — 5,248,844 (234,507) Agency-issued commercial mortgage-backed securities 751,263 (23,792) — — 751,263 (23,792) Total available-for-sale securities (1) $ 16,061,990 $ (498,349) $ — $ — $ 16,061,990 $ (498,349) (1) As of March 31, 2021, we identified a total of 400 investments that were in unrealized loss positions with no investments in an unrealized loss position for a period of time greater than 12 months. Based on our analysis of the securities in an unrealized loss position as of March 31, 2021, the decline in value is unrelated to credit loss and is related to changes in market interest rates since purchase and therefore changes in value for securities are included in other comprehensive income. Market valuations and credit loss analyses on assets in the available-for-sale securities portfolio are reviewed and monitored on a quarterly basis. As of March 31, 2021, we do not intend to sell any of our securities in an unrealized loss position prior to recovery of our amortized cost basis, and it is more likely than not that we will not be required to sell any of our securities prior to recovery of our amortized cost basis. None of the investments in our available-for-sale securities portfolio were past due as of March 31, 2021. December 31, 2020 Less than 12 months 12 months or longer (1) Total (Dollars in thousands) Fair Value of Unrealized Fair Value of Unrealized Fair Value of Unrealized Available-for-sale securities: U.S. Treasury securities $ 59,929 $ (107) $ — $ — $ 59,929 $ (107) U.S. agency debentures 133,143 (585) — — 133,143 (585) Residential mortgage-backed securities: Agency-issued mortgage-backed securities 903,767 (651) — — 903,767 (651) Agency-issued collateralized mortgage obligations—fixed rate 2,199,207 (10,278) — — 2,199,207 (10,278) Agency-issued commercial mortgage-backed securities 989,389 (3,367) — — 989,389 (3,367) Total available-for-sale securities (1) $ 4,285,435 $ (14,988) $ — $ — $ 4,285,435 $ (14,988) (1) As of December 31, 2020, we identified a total of 93 investments that were in unrealized loss positions, of which no investments are in an unrealized loss position for a period of time greater than 12 months. None of the investments in our available-for-sale securities portfolio were past due as of December 31, 2020. The following table summarizes the fixed income securities, carried at fair value, classified as available-for-sale as of March 31, 2021 by the remaining contractual principal maturities. For U.S. Treasury securities, U.S. agency debentures and foreign government debt securities, the expected maturity is the actual contractual maturity of the notes. Expected maturities for mortgage-backed securities may differ significantly from their contractual maturities because mortgage borrowers have the right to prepay outstanding loan obligations with or without penalties. Mortgage-backed securities classified as available-for-sale typically have original contractual maturities from 10 to 30 years whereas expected average lives of these securities tend to be significantly shorter and vary based upon structure and prepayments in lower interest rate environments. March 31, 2021 (Dollars in thousands) Total One Year After One After Five After U.S. Treasury securities $ 4,438,396 $ 40,481 $ 3,844,128 $ 553,787 $ — U.S. agency debentures 226,095 — — 226,095 — Foreign government debt securities 23,450 23,450 — — — Residential mortgage-backed securities: Agency-issued mortgage-backed securities 12,514,911 — — — 12,514,911 Agency-issued collateralized mortgage obligations—fixed rate 7,256,626 — — — 7,256,626 Agency-issued commercial mortgage-backed securities 1,526,993 — — 1,526,993 — Total $ 25,986,471 $ 63,931 $ 3,844,128 $ 2,306,875 $ 19,771,537 Held-to-Maturity Securities During the first quarter of 2021, we re-designated certain securities from the classification of “available-for-sale” to “held-to-maturity." The securities re-designated consisted of agency-issued commercial mortgage-backed securities with a total carrying value of $2.9 billion at March 31, 2021. At the time of re-designation the securities included $8.7 million of pretax unrealized gains in other comprehensive income and are being amortized over the life of the securities in a manner consistent with the amortization of a premium or discount. Our decision to re-designate the securities was based on our ability and intent to hold these securities to maturity. Factors used in assessing the ability to hold these securities to maturity were future liquidity needs and sources of funding. Held-to-maturity securities are carried on the balance sheet at amortized cost and the changes in the value of these securities, other than an allowance for credit losses, are not reported on the financial statements. The components of our held-to-maturity investment securities portfolio at March 31, 2021 and December 31, 2020 are as follows: March 31, 2021 (Dollars in thousands) Amortized Unrealized Unrealized Fair Value Allowance for Credit Losses Held-to-maturity securities, at cost: U.S. agency debentures (1) $ 404,571 $ 11,618 $ — $ 416,189 $ — Residential mortgage-backed securities: Agency-issued mortgage-backed securities 23,525,681 184,691 (296,061) 23,414,311 — Agency-issued collateralized mortgage obligations —fixed rate 2,425,024 23,807 (5,593) 2,443,238 — Agency-issued collateralized mortgage obligations—variable rate 128,370 667 — 129,037 — Agency-issued commercial mortgage-backed securities 10,075,165 81,135 (85,801) 10,070,499 — Municipal bonds and notes 4,555,237 150,919 (43,935) 4,662,221 531 Corporate bonds 51,684 — (444) 51,240 581 Total held-to-maturity securities $ 41,165,732 $ 452,837 $ (431,834) $ 41,186,735 $ 1,112 (1) Consists of pools of Small Business Investment Company debentures issued and guaranteed by the U.S. Small Business Administration, an independent agency of the United States. December 31, 2020 (Dollars in thousands) Amortized Unrealized Unrealized Fair Value Allowance for Credit Losses Held-to-maturity securities, at amortized cost: U.S. agency debentures (1) $ 402,265 $ 18,961 $ — $ 421,226 $ — Residential mortgage-backed securities: Agency-issued mortgage-backed securities 7,739,763 240,121 (2,211) 7,977,673 — Agency-issued collateralized mortgage obligations—fixed rate 1,735,451 23,227 (296) 1,758,382 — Agency-issued collateralized mortgage obligations—variable rate 136,913 317 — 137,230 — Agency-issued commercial mortgage-backed securities 2,942,959 123,846 — 3,066,805 — Municipal bonds and notes 3,635,194 220,866 (505) 3,855,555 392 Total held-to-maturity securities $ 16,592,545 $ 627,338 $ (3,012) $ 17,216,871 $ 392 (1) Consists of pools of Small Business Investment Company debentures issued and guaranteed by the U.S. Small Business Administration, an independent agency of the United States. Allowance for Credit Losses for HTM Securities The following table summarizes the activity relating to our allowance for credit losses for HTM securities for the three months ended March 31, 2021 and 2020: Three months ended March 31, 2021 Beginning Balance December 31, 2020 Provision for Credit Losses Ending Balance March 31, 2021 (Dollars in thousands) Municipal bonds and notes $ 392 $ 139 $ 531 Corporate bonds — 581 581 Total allowance for credit losses $ 392 $ 720 $ 1,112 Three months ended March 31, 2020 Beginning Balance December 31, 2019 Day One Impact of Adopting ASC 326 Provision for Credit Losses Ending Balance March 31, 2020 (Dollars in thousands) Municipal bonds and notes $ — $ 174 $ 56 $ 230 Total allowance for credit losses $ — $ 174 $ 56 $ 230 Accrued interest receivable ("AIR") from HTM securities totaled $96.1 million at March 31, 2021 and $55.0 million at December 31, 2020 and is reported in "Accrued interest receivable and other assets" in our unaudited interim consolidated balance sheets. Credit Quality Indicators On a quarterly basis, management monitors the credit quality for HTM securities through the use of standard credit ratings. The following table summarizes our amortized cost of HTM securities aggregated by credit quality indicator at March 31, 2021 and December 31, 2020: (Dollars in thousands) March 31, 2021 December 31, 2020 Municipal bonds and notes: Aaa $ 2,519,992 $ 2,070,311 Aa1 1,329,903 1,144,500 Aa2 568,423 420,383 Aa3 124,724 — A1 12,195 — Total municipal bonds and notes $ 4,555,237 $ 3,635,194 Corporate bonds: Aa2 $ 27,583 $ — Aa3 24,101 — Total corporate bonds $ 51,684 $ — The following table summarizes the remaining contractual principal maturities on fixed income investment securities classified as held-to-maturity as of March 31, 2021. For U.S. agency debentures, the expected maturity is the actual contractual maturity of the notes. Expected remaining maturities for certain U.S. agency debentures may occur earlier than their contractual maturities because the note issuers have the right to call outstanding amounts ahead of their contractual maturity. Expected maturities for mortgage-backed securities may differ significantly from their contractual maturities because mortgage borrowers have the right to prepay outstanding loan obligations with or without penalties. Mortgage-backed securities classified as held-to-maturity typically have original contractual maturities from 10 to 30 years whereas expected average lives of these securities tend to be significantly shorter and vary based upon structure and prepayments in lower interest rate environments. March 31, 2021 Total One Year After One Year to After Five Years to After (Dollars in thousands) Amortized Cost Fair Value Amortized Cost Fair Value Amortized Cost Fair Value Amortized Cost Fair Value Amortized Cost Fair Value U.S. agency debentures $ 404,571 $ 416,189 $ 4,066 $ 4,117 $ 141,117 $ 145,321 $ 259,388 $ 266,751 $ — $ — Residential mortgage-backed securities: Agency-issued mortgage-backed securities 23,525,681 23,414,311 6,319 6,564 11,663 11,983 494,951 510,743 23,012,748 22,885,021 Agency-issued collateralized mortgage obligations — fixed rate 2,425,024 2,443,238 — — 5,356 5,482 447,781 458,314 1,971,887 1,979,442 Agency-issued collateralized mortgage obligations — variable rate 128,370 129,037 — — — — — — 128,370 129,037 Agency-issued commercial mortgage-backed securities 10,075,165 10,070,499 — — — — 536,203 542,183 9,538,962 9,528,316 Municipal bonds and notes 4,555,237 4,662,221 48,536 49,209 130,482 136,075 756,078 795,055 3,620,141 3,681,882 Corporate bonds 51,684 51,240 — — — — 51,684 51,240 — — Total $ 41,165,732 $ 41,186,735 $ 58,921 $ 59,890 $ 288,618 $ 298,861 $ 2,546,085 $ 2,624,286 $ 38,272,108 $ 38,203,698 Non-marketable and Other Equity Securities The major components of our non-marketable and other equity securities portfolio at March 31, 2021 and December 31, 2020 are as follows: (Dollars in thousands) March 31, 2021 December 31, 2020 Non-marketable and other equity securities: Non-marketable securities (fair value accounting): Consolidated venture capital and private equity fund investments (1) $ 96,016 $ 88,937 Unconsolidated venture capital and private equity fund investments (2) 178,407 184,886 Other investments without a readily determinable fair value (3) 200,367 60,975 Other equity securities in public companies (fair value accounting) (4) 160,810 280,804 Non-marketable securities (equity method accounting) (5): Venture capital and private equity fund investments 394,349 362,192 Debt funds 5,813 5,444 Other investments 205,002 202,809 Investments in qualified affordable housing projects, net (6) 616,997 616,188 Total non-marketable and other equity securities $ 1,857,761 $ 1,802,235 (1) The following table shows the amounts of venture capital and private equity fund investments held by the following consolidated funds and our ownership percentage of each fund at March 31, 2021 and December 31, 2020 (fair value accounting): March 31, 2021 December 31, 2020 (Dollars in thousands) Amount Ownership % Amount Ownership % Strategic Investors Fund, LP $ 5,165 12.6 % $ 4,850 12.6 % Capital Preferred Return Fund, LP 48,572 20.0 49,574 20.0 Growth Partners, LP 42,279 33.0 34,513 33.0 Total consolidated venture capital and private equity fund investments $ 96,016 $ 88,937 (2) The carrying value represents investments in 161 and 162 funds (primarily venture capital funds) at March 31, 2021 and December 31, 2020, respectively, where our ownership interest is typically less than 5% of the voting interests of each such fund and in which we do not have the ability to exercise significant influence over the partnerships operating activities and financial policies. We carry our unconsolidated venture capital and private equity fund investments at fair value based on the fund investments' net asset values per share as obtained from the general partners of the investments. For each fund investment, we adjust the net asset value per share for differences between our measurement date and the date of the fund investment’s net asset value by using the most recently available financial information from the investee general partner, for example December 31 st for our March 31 st consolidated financial statements, adjusted for any contributions paid, distributions received from the investment, and significant fund transactions or market events during the reporting period. (3) These investments include direct equity investments in private companies. The carrying value is based on the price at which the investment was acquired plus or minus changes resulting from observable price changes in orderly transactions for identical or similar investments. We consider a range of factors when adjusting the fair value of these investments, including, but not limited to, the term and nature of the investment, local market conditions, values for comparable securities, current and projected operating performance, exit strategies, financing transactions subsequent to the acquisition of the investment and a discount for certain investments that have lock-up restrictions or other features that indicate a discount to fair value is warranted. The following table shows the changes to the carrying amount of other investments without a readily determinable fair value for the three months ended March 31, 2021: (Dollars in thousands) Three months ended March 31, 2021 Cumulative Adjustments Measurement alternative: Carrying value at March 31, 2021 $ 200,367 Carrying value adjustments: Impairment $ — $ (947) Upward changes for observable prices 13,762 17,121 Downward changes for observable prices (456) (4,327) (4) Investments classified as other equity securities (fair value accounting) represent shares held in public companies as a result of exercising public equity warrant assets and direct equity investments in public companies held by our consolidated funds. Changes in equity securities measured at fair value are recognized through net income. (5) The following table shows the carrying value and our ownership percentage of each investment at March 31, 2021 and December 31, 2020 (equity method accounting): March 31, 2021 December 31, 2020 (Dollars in thousands) Amount Ownership % Amount Ownership % Venture capital and private equity fund investments: Strategic Investors Fund II, LP $ 4,624 8.6 % $ 3,705 8.6 % Strategic Investors Fund III, LP 21,281 5.9 16,110 5.9 Strategic Investors Fund IV, LP 29,681 5.0 25,169 5.0 Strategic Investors Fund V funds 60,992 Various 67,052 Various CP II, LP (i) 8,954 5.1 7,887 5.1 Other venture capital and private equity fund investments 268,817 Various 242,269 Various Total venture capital and private equity fund investments $ 394,349 $ 362,192 Debt funds: Gold Hill Capital 2008, LP (ii) $ 4,380 15.5 % $ 3,941 15.5 % Other debt funds 1,433 Various 1,503 Various Total debt funds $ 5,813 $ 5,444 Other investments: SPD Silicon Valley Bank Co., Ltd. $ 111,838 50.0 % $ 115,232 50.0 % Other investments 93,164 Various 87,577 Various Total other investments $ 205,002 $ 202,809 (i) Our ownership includes direct ownership interest of 1.3 percent and indirect ownership interest of 3.8 percent through our investments in Strategic Investors Fund II, LP. (ii) Our ownership includes direct ownership interest of 11.5 percent in the fund and an indirect interest in the fund through our investment in Gold Hill Capital 2008, LLC of 4.0 percent. (6) The following table presents the balances of our investments in qualified affordable housing projects and related unfunded commitments included as a component of “Other liabilities” on our consolidated balance sheets at March 31, 2021 and December 31, 2020: (Dollars in thousands) March 31, 2021 December 31, 2020 Investments in qualified affordable housing projects, net $ 616,997 $ 616,188 Other liabilities 372,516 370,208 The following table presents other information relating to our investments in qualified affordable housing projects for the three months ended March 31, 2021 and 2020: Three months ended March 31, (Dollars in thousands) 2021 2020 Tax credits and other tax benefits recognized $ 28,184 $ 11,759 Amortization expense included in provision for income taxes (i) 16,105 11,471 (i) All investments are amortized using the proportional amortization method and amortization expense is included in the provision for income taxes. The following table presents the net gains and losses on non-marketable and other equity securities for the three months ended March 31, 2021 and 2020 as recorded in the line item “Gains on investment securities, net," a component of noninterest income: Three months ended March 31, (Dollars in thousands) 2021 2020 Net gains (losses) on non-marketable and other equity securities: Non-marketable securities (fair value accounting): Consolidated venture capital and private equity fund investments $ 17,211 $ 3,113 Unconsolidated venture capital and private equity fund investments 12,510 1,252 Other investments without a readily determinable fair value 13,769 (2,943) Other equity securities in public companies (fair value accounting) 77,561 (7,504) Non-marketable securities (equity method accounting): Venture capital and private equity fund investments 45,385 (8,046) Debt funds 414 (362) Other investments 228 (620) Total net gains (losses) on non-marketable and other equity securities $ 167,078 $ (15,110) Less: realized net gains (losses) on sales of non-marketable and other equity securities 69,775 (49) Net gains (losses) on non-marketable and other equity securities still held $ 97,303 $ (15,061)

Loans, Allowance for Loan Losse

Loans, Allowance for Loan Losses and Allowance for Unfunded Credit Commitments	3 Months Ended
	Mar. 31, 2021
Receivables [Abstract]
Loans and Allowance for Credit Losses: Loans and Unfunded Credit Commitments	Loans and Allowance for Credit Losses: Loans and Unfunded Credit Commitments We serve a variety of commercial clients in the technology, life science/healthcare, private equity/venture capital and premium wine industries. Our technology clients generally tend to be in the industries of hardware (such as semiconductors, communications, data, storage and electronics), software/internet (such as infrastructure software, applications, software services, digital content and advertising technology) and energy and resource innovation (“ERI”). Our life science/healthcare clients primarily tend to be in the industries of biotechnology, medical devices, healthcare information technology and healthcare services. Loans to our technology, life science/healthcare and ERI clients are reported under the Investor Dependent, Cash Flow Dependent and Balance Sheet Dependent risk-based segments below. Loans made to private equity/venture capital firm clients typically enable them to fund investments prior to their receipt of funds from capital calls and are reported under the Global Fund Banking portfolio segment below. Loans to the premium wine industry focus on vineyards and wineries that produce grapes and wines of high quality. In addition to commercial loans, we make consumer loans through SVB Private Bank and provide real estate secured loans to eligible employees through our EHOP. We also provide community development loans made as part of our responsibilities under the CRA. These loans are included within “construction loans” below and are primarily secured by real estate. Additionally, beginning in April 2020, we accepted applications under the PPP administered by the U.S. Small Business Association ("SBA") under the Coronavirus Aid, Relief, and Economic Security Act (the "CARES Act") and originated loans to qualified small businesses. Disbursement of PPP funds under the CARES Act originally expired on August 8, 2020, however, on December 27, 2020, the Economic Aid to Hard-Hit Small Businesses, Nonprofits, and Venues Act (the "Economic Aid Act") was enacted, which allowed borrowers to apply for PPP loans up to March 31, 2021, as well as allowing for certain PPP borrowers to apply for second draw loans. The disbursement phase of the PPP was further extended to May 31, 2021 pursuant to the PPP Extension Act of 2021. The composition of loans at amortized cost basis broken out by risk-based segment at March 31, 2021 and December 31, 2020 is presented in the following table: (Dollars in thousands) March 31, 2021 December 31, 2020 Global fund banking $ 27,306,926 $ 25,543,198 Investor dependent: Early stage 1,523,208 1,485,866 Mid stage 1,588,185 1,564,870 Later stage 2,055,676 1,921,082 Total investor dependent 5,167,069 4,971,818 Cash flow dependent: Sponsor led buyout 1,984,567 1,989,173 Other 2,959,609 2,945,360 Total cash flow dependent 4,944,176 4,934,533 Private bank (4) 5,063,827 4,901,056 Balance sheet dependent 2,501,524 2,191,023 Premium wine (4) 1,040,223 1,052,643 Other (4) 45,688 27,687 SBA loans 1,605,733 1,559,530 Total loans (1) (2) (3) $ 47,675,166 $ 45,181,488 Allowance for credit losses (391,751) (447,765) Net loans $ 47,283,415 $ 44,733,723 (1) Total loans at amortized cost is net of unearned income of $248 million and $226 million at March 31, 2021 and December 31, 2020, respectively. (2) Included within our total loan portfolio are credit card loans of $461 million and $400 million at March 31, 2021 and December 31, 2020, respectively. (3) Included within our total loan portfolio are construction loans of $108 million and $118 million at March 31, 2021 and December 31, 2020, respectively. (4) Of our total loans, the table below includes those secured by real estate at amortized cost at March 31, 2021 and December 31, 2020 and were comprised of the following: (Dollars in thousands) March 31, 2021 December 31, 2020 Real estate secured loans: Private bank: Loans for personal residence $ 3,538,077 $ 3,392,237 Loans to eligible employees 458,736 481,098 Home equity lines of credit 45,033 42,449 Other 145,995 142,895 Total private bank loans secured by real estate $ 4,187,841 $ 4,058,679 Premium wine 824,463 824,008 Other 50,584 56,882 Total real estate secured loans $ 5,062,888 $ 4,939,569 Credit Quality Indicators For each individual client, we establish an internal credit risk rating for that loan, which is used for assessing and monitoring credit risk as well as performance of the loan and the overall portfolio. Our internal credit risk ratings are also used to summarize the risk of loss due to failure by an individual borrower to repay the loan. For our internal credit risk ratings, each individual loan is given a risk rating of 1 through 10. Loans risk-rated 1 through 4 are performing loans and translate to an internal rating of “Pass,” with loans risk-rated 1 being cash secured. Loans risk-rated 5 through 7 are performing loans; however, we consider them as demonstrating higher risk, which requires more frequent review of the individual exposures; these translate to an internal rating of “Criticized.” All of our nonaccrual loans are risk-rated 8 or 9 and are classified with the internal rating of "Nonperforming." Loans rated 10 are charged-off and are not included as part of our loan portfolio balance. We review our credit quality indicators on a quarterly basis for performance and appropriateness of risk ratings as part of our evaluation process for our allowance for credit losses for loans. The following table summarizes the credit quality indicators, broken out by risk-based segment, as of March 31, 2021 and December 31, 2020: (Dollars in thousands) Pass Criticized Nonperforming (Nonaccrual) Total March 31, 2021: Global fund banking $ 27,292,491 $ 14,417 $ 18 $ 27,306,926 Investor dependent: Early stage 1,303,581 211,861 7,766 1,523,208 Mid stage 1,492,157 96,028 — 1,588,185 Later stage 1,922,215 106,058 27,403 2,055,676 Total investor dependent 4,717,953 413,947 35,169 5,167,069 Cash flow dependent: Sponsor led buyout 1,844,415 100,304 39,848 1,984,567 Other 2,680,114 273,867 5,628 2,959,609 Total cash flow dependent 4,524,529 374,171 45,476 4,944,176 Private bank 5,024,735 30,647 8,445 5,063,827 Balance sheet dependent 2,373,152 128,372 — 2,501,524 Premium wine 903,583 135,501 1,139 1,040,223 Other 45,653 35 — 45,688 SBA loans 1,466,605 139,128 — 1,605,733 Total loans $ 46,348,701 $ 1,236,218 $ 90,247 $ 47,675,166 December 31, 2020: Global fund banking $ 25,537,354 $ 5,833 $ 11 $ 25,543,198 Investor dependent Early stage 1,288,897 178,629 18,340 1,485,866 Mid stage 1,420,788 140,026 4,056 1,564,870 Later stage 1,744,662 147,763 28,657 1,921,082 Total investor dependent 4,454,347 466,418 51,053 4,971,818 Cash flow dependent Sponsor led buyout 1,795,972 153,205 39,996 1,989,173 Other 2,677,371 261,985 6,004 2,945,360 Total cash flow dependent 4,473,343 415,190 46,000 4,934,533 Private bank 4,862,176 32,728 6,152 4,901,056 Balance sheet dependent 2,104,645 86,378 — 2,191,023 Premium wine 910,397 141,248 998 1,052,643 Other 27,594 63 30 27,687 SBA loans 1,455,990 103,540 — 1,559,530 Total loans $ 43,825,846 $ 1,251,398 $ 104,244 $ 45,181,488 The following tables summarize the credit quality indicators, broken out by risk-based segment and vintage year, as of March 31, 2021 and December 31, 2020: Term Loans by Origination Year March 31, 2021 2021 2020 2019 2018 2017 Prior Revolving Loans Revolving Loans Converted to Term Loans Unallocated (1) Total Global fund banking: Risk rating: Pass $ 267,498 $ 263,243 $ 44,632 $ 59,520 $ 21,416 $ 7,773 $ 26,627,712 $ 697 $ — $ 27,292,491 Criticized 3 — — — — — 10,347 4,067 — 14,417 Nonperforming — — 8 — — — 10 — — 18 Total global fund banking $ 267,501 $ 263,243 $ 44,640 $ 59,520 $ 21,416 $ 7,773 $ 26,638,069 $ 4,764 $ — $ 27,306,926 Investor dependent: Early stage: Risk rating: Pass $ 197,867 $ 584,281 $ 296,776 $ 95,495 $ 16,114 $ 1,122 $ 111,366 $ 560 $ — $ 1,303,581 Criticized 5,120 82,312 68,639 23,896 6,174 1,792 23,928 — — 211,861 Nonperforming 211 454 3,037 3,124 — 940 — — 7,766 Total early stage $ 203,198 $ 667,047 $ 368,452 $ 122,515 $ 22,288 $ 2,914 $ 136,234 $ 560 $ — $ 1,523,208 Mid stage: Risk rating: Pass $ 253,799 $ 708,740 $ 253,486 $ 129,298 $ 19,909 $ 2,754 $ 121,676 $ 2,495 $ — $ 1,492,157 Criticized 4,510 43,314 18,015 10,773 3,745 4,998 10,673 — — 96,028 Nonperforming — — — — — — — — — — Total mid stage $ 258,309 $ 752,054 $ 271,501 $ 140,071 $ 23,654 $ 7,752 $ 132,349 $ 2,495 $ — $ 1,588,185 Later stage: Risk rating: Pass $ 262,703 $ 942,741 $ 338,516 $ 165,935 $ 14,016 $ 5,593 $ 187,725 $ 4,986 $ — $ 1,922,215 Criticized — 35,439 27,753 8,571 — 892 33,403 — — 106,058 Nonperforming — 15,997 1,676 3,280 — — 6,450 — — 27,403 Total later stage $ 262,703 $ 994,177 $ 367,945 $ 177,786 $ 14,016 $ 6,485 $ 227,578 $ 4,986 $ — $ 2,055,676 Total investor dependent $ 724,210 $ 2,413,278 $ 1,007,898 $ 440,372 $ 59,958 $ 17,151 $ 496,161 $ 8,041 $ — $ 5,167,069 Cash flow dependent: Sponsor led buyout: Risk rating: Pass $ 310,562 $ 643,432 $ 406,962 $ 242,303 $ 147,618 $ 36,269 $ 57,269 $ — $ — $ 1,844,415 Criticized — 551 30,534 39,028 10,515 13,129 6,547 — — 100,304 Nonperforming — 32 11,838 15,998 7,158 — 4,822 — — 39,848 Total sponsor led buyout $ 310,562 $ 644,015 $ 449,334 $ 297,329 $ 165,291 $ 49,398 $ 68,638 $ — $ — $ 1,984,567 Other Risk rating: Pass $ 454,225 $ 791,748 $ 343,877 $ 158,992 $ 111,051 $ 1,946 $ 818,275 $ — $ — $ 2,680,114 Criticized 1 16,065 60,474 67,074 3,957 — 126,296 — — 273,867 Nonperforming — — — 4,418 — — 1,210 — — 5,628 Total other $ 454,226 $ 807,813 $ 404,351 $ 230,484 $ 115,008 $ 1,946 $ 945,781 $ — $ — $ 2,959,609 Total cash flow dependent $ 764,788 $ 1,451,828 $ 853,685 $ 527,813 $ 280,299 $ 51,344 $ 1,014,419 $ — $ — $ 4,944,176 Private bank: Risk rating: Pass $ 412,282 $ 1,821,765 $ 1,064,886 $ 364,246 $ 319,602 $ 646,021 $ 395,302 $ 631 $ — $ 5,024,735 Criticized — 3,179 8,398 3,513 3,211 9,442 2,904 — — 30,647 Nonperforming — — — 6,079 — 1,657 709 — — 8,445 Total private bank $ 412,282 $ 1,824,944 $ 1,073,284 $ 373,838 $ 322,813 $ 657,120 $ 398,915 $ 631 $ — $ 5,063,827 Balance sheet dependent: Risk rating: Pass $ 263,600 $ 832,914 $ 155,424 $ 181,241 $ 33,922 $ — $ 904,547 $ 1,504 $ — $ 2,373,152 Criticized 69 58,519 42,391 — — — 27,393 — — 128,372 Nonperforming — — — — — — — — — — Total balance sheet dependent $ 263,669 $ 891,433 $ 197,815 $ 181,241 $ 33,922 $ — $ 931,940 $ 1,504 $ — $ 2,501,524 Premium wine: Risk rating: Pass $ 20,393 $ 129,671 $ 193,793 $ 87,586 $ 77,877 $ 225,080 $ 133,185 $ 35,998 $ — $ 903,583 Criticized 1,634 13,288 22,856 16,069 10,207 47,518 23,929 — — 135,501 Nonperforming — 42 — — — 998 99 — — 1,139 Total Premium wine $ 22,027 $ 143,001 $ 216,649 $ 103,655 $ 88,084 $ 273,596 $ 157,213 $ 35,998 $ — $ 1,040,223 Other: Risk rating: Pass $ 21 $ 10,792 $ 19,179 $ 16,642 $ 1,478 $ 1 $ 13,031 $ — $ (15,491) $ 45,653 Criticized — — — — — — 35 — — 35 Nonperforming — — — — — — — — — — Total other $ 21 $ 10,792 $ 19,179 $ 16,642 $ 1,478 $ 1 $ 13,066 $ — $ (15,491) $ 45,688 SBA loans: Risk rating: Pass $ 385,899 $ 1,080,706 $ — $ — $ — $ — $ — $ — $ — $ 1,466,605 Criticized 49,353 89,775 — — — — — — — 139,128 Nonperforming — — — — — — — — — — Total SBA loans $ 435,252 $ 1,170,481 $ — $ — $ — $ — $ — $ — $ — $ 1,605,733 Total loans $ 2,889,750 $ 8,169,000 $ 3,413,150 $ 1,703,081 $ 807,970 $ 1,006,985 $ 29,649,783 $ 50,938 $ (15,491) $ 47,675,166 (1) These amounts consist of fees and clearing items that have not yet been allocated at the loan level. Term Loans by Origination Year December 31, 2020 2020 2019 2018 2017 2016 Prior Revolving Loans Revolving Loans Converted to Term Loans Total Global fund banking: Risk rating: Pass $ 439,494 $ 48,297 $ 68,491 $ 22,878 $ 2,389 $ 5,999 $ 24,947,428 $ 2,378 $ 25,537,354 Criticized — — — — — — 410 5,423 5,833 Nonperforming 3 8 — — — — — — 11 Total global fund banking $ 439,497 $ 48,305 $ 68,491 $ 22,878 $ 2,389 $ 5,999 $ 24,947,838 $ 7,801 $ 25,543,198 Investor dependent: Early stage: Risk rating: Pass $ 667,006 $ 370,189 $ 120,920 $ 32,163 $ 1,234 $ 405 $ 96,363 $ 617 $ 1,288,897 Criticized 46,889 72,495 26,170 10,204 3,557 334 18,980 — 178,629 Nonperforming 2,438 9,354 5,368 441 — — 739 — 18,340 Total early stage $ 716,333 $ 452,038 $ 152,458 $ 42,808 $ 4,791 $ 739 $ 116,082 $ 617 $ 1,485,866 Mid stage: Risk rating: Pass $ 840,431 $ 301,905 $ 145,588 $ 22,834 $ 5,086 $ 1,026 $ 101,423 $ 2,495 $ 1,420,788 Criticized 43,288 48,294 26,023 8,242 — 4,998 9,181 — 140,026 Nonperforming 10 614 218 2,539 — 675 — — 4,056 Total mid stage $ 883,729 $ 350,813 $ 171,829 $ 33,615 $ 5,086 $ 6,699 $ 110,604 $ 2,495 $ 1,564,870 Later stage: Risk rating: Pass $ 905,468 $ 393,584 $ 170,128 $ 37,967 $ 11 $ 8,087 $ 224,432 $ 4,985 $ 1,744,662 Criticized 22,286 55,254 30,252 1,142 — 1,547 37,282 — 147,763 Nonperforming 16,691 1,797 3,522 — — — 6,647 — 28,657 Total later stage $ 944,445 $ 450,635 $ 203,902 $ 39,109 $ 11 $ 9,634 $ 268,361 $ 4,985 $ 1,921,082 Total investor dependent $ 2,544,507 $ 1,253,486 $ 528,189 $ 115,532 $ 9,888 $ 17,072 $ 495,047 $ 8,097 $ 4,971,818 Cash flow dependent: Sponsor led buyout: Risk rating: Pass $ 791,480 $ 451,561 $ 273,719 $ 166,820 $ 36,900 $ — $ 75,492 $ — $ 1,795,972 Criticized 500 70,324 39,020 21,607 13,003 — 8,751 — 153,205 Nonperforming 33 11,869 16,068 7,177 — — 4,849 — 39,996 Total sponsor led buyout $ 792,013 $ 533,754 $ 328,807 $ 195,604 $ 49,903 $ — $ 89,092 $ — $ 1,989,173 Other Risk rating: Pass $ 879,542 $ 513,242 $ 179,169 $ 133,235 $ 38,808 $ 101 $ 933,274 $ — $ 2,677,371 Criticized 19,246 67,854 33,779 4,477 — — 136,629 — 261,985 Nonperforming — — 4,552 — — — 1,452 — 6,004 Total other $ 898,788 $ 581,096 $ 217,500 $ 137,712 $ 38,808 $ 101 $ 1,071,355 $ — $ 2,945,360 Total cash flow dependent $ 1,690,801 $ 1,114,850 $ 546,307 $ 333,316 $ 88,711 $ 101 $ 1,160,447 $ — $ 4,934,533 Private bank: Risk rating: Pass $ 1,878,184 $ 1,152,903 $ 394,351 $ 352,857 $ 294,870 $ 405,909 $ 382,442 $ 660 $ 4,862,176 Criticized 3,480 9,985 4,486 1,202 5,101 7,725 749 — 32,728 Nonperforming — 563 3,197 — — 1,679 713 — 6,152 Total private bank $ 1,881,664 $ 1,163,451 $ 402,034 $ 354,059 $ 299,971 $ 415,313 $ 383,904 $ 660 $ 4,901,056 Balance sheet dependent: Risk rating: Pass $ 837,613 $ 190,140 $ 198,532 $ 19,213 $ — $ — $ 857,642 $ 1,505 $ 2,104,645 Criticized 55,887 3,733 171 — — — 26,587 — 86,378 Nonperforming — — — — — — — — — Total balance sheet dependent $ 893,500 $ 193,873 $ 198,703 $ 19,213 $ — $ — $ 884,229 $ 1,505 $ 2,191,023 Premium wine: Risk rating: Pass $ 126,476 $ 193,744 $ 70,783 $ 79,088 $ 114,812 $ 153,841 $ 135,461 $ 36,192 $ 910,397 Criticized 17,882 24,286 35,737 10,300 13,559 5,766 33,718 — 141,248 Nonperforming — — — — 998 — — — 998 Total Premium wine $ 144,358 $ 218,030 $ 106,520 $ 89,388 $ 129,369 $ 159,607 $ 169,179 $ 36,192 $ 1,052,643 Other: Risk rating: Pass $ — $ 16,251 $ 10,910 $ — $ — $ 433 $ — $ — $ 27,594 Criticized 3 — — — — — 60 — 63 Nonperforming — 30 — — — — — — 30 Total other $ 3 $ 16,281 $ 10,910 $ — $ — $ 433 $ 60 $ — $ 27,687 SBA loans: Risk rating: Pass $ 1,455,990 $ — $ — $ — $ — $ — $ — $ — $ 1,455,990 Criticized 103,540 — — — — — — — 103,540 Nonperforming — — — — — — — — — Total SBA loans $ 1,559,530 $ — $ — $ — $ — $ — $ — $ — $ 1,559,530 Total loans $ 9,153,860 $ 4,008,276 $ 1,861,154 $ 934,386 $ 530,328 $ 598,525 $ 28,040,704 $ 54,255 $ 45,181,488 Allowance for Credit Losses: Loans In the first quarter of 2021, the ACL for loans decreased $56.0 million driven primarily by an improved economic forecast in Moody’s Analytics March 2021 forecast utilized in our quantitative model, as compared to the forecast utilized in December 2020. Those assumptions included an improvement in the unemployment rate as a result of businesses re-opening and the effect of government aid programs. The gross domestic product growth forecast also improved in the March 2021 forecast. The economic forecast in Moody's Analytics March 2021 forecast was utilized in our quantitative model for the ACL as of March 31, 2021. We determined the forecast to be a reasonable view of the outlook for the economy given the available information at current quarter end. To the extent we identified credit risk considerations that were not captured by the Moody's Analytics March 2021 forecast, we addressed the risk through management's qualitative adjustments to our ACL. We do not estimate expected credit losses ("ECL") on accrued interest receivable ("AIR") on loans, as AIR is reversed or written off when the full collection of the AIR related to a loan becomes doubtful. AIR on loans totaled $138.4 million at March 31, 2020 and $126.4 million at December 31, 2020 and is reported in "Accrued interest receivable and other assets" in our unaudited interim consolidated balance sheets. The following tables summarize the activity relating to our allowance for credit losses for loans for the three months ended March 31, 2021 and 2020, broken out by portfolio segment: Three months ended March 31, 2021 Beginning Balance December 31, 2020 Charge-offs Recoveries Provision (Reduction) for Credit Losses Foreign Currency Translation Adjustments Ending Balance March 31, 2021 (Dollars in thousands) Global fund banking $ 45,584 $ (79,912) $ — $ 94,329 $ — $ 60,001 Investor dependent: Early stage 86,674 (14,123) 838 (11,121) (21) 62,247 Growth stage 126,683 (120) 3,693 (25,546) (24) 104,686 Total investor dependent 213,357 (14,243) 4,531 (36,667) (45) 166,933 Cash flow and balance sheet dependent 124,249 — — (12,758) 2 111,493 Private bank 53,629 — 2 (8,567) — 45,064 Premium wine and other 9,036 (850) 320 (401) 155 8,260 SBA loans 1,910 — — (1,910) — — Total allowance for credit losses $ 447,765 $ (95,005) $ 4,853 $ 34,026 $ 112 $ 391,751 Three months ended March 31, 2020 Beginning Balance December 31, 2019 Impact of adopting ASC 326 Charge-offs Recoveries Provision (Reduction) for Credit Losses Foreign Currency Translation Adjustments Ending Balance March 31, 2020 (Dollars in thousands) Global fund banking $ 107,285 $ (69,888) $ — $ — $ 19,557 $ (180) $ 56,774 Investor dependent: Early stage 26,245 39,911 (10,183) 1,573 70,214 (571) 127,189 Growth stage 56,125 31,713 (23,316) 3,337 81,183 (530) 148,512 Total investor dependent 82,370 71,624 (33,499) 4,910 151,397 (1,101) 275,701 Cash flow and balance sheet dependent 80,820 (1,269) (2,624) 2,845 25,301 (331) 104,742 Private bank 21,551 12,615 (581) — 54,490 (280) 87,795 Premium wine and other 12,898 12,382 (192) — (1,844) 707 23,951 Total allowance for credit losses $ 304,924 $ 25,464 $ (36,896) $ 7,755 $ 248,901 $ (1,185) $ 548,963 The following table summarizes the aging of our loans broken out by risk-based segment as of March 31, 2021 and December 31, 2020: (Dollars in thousands) 30 - 59 60 - 89 Equal to or Greater Total Past Current Total Loans Past Due March 31, 2021: Global fund banking $ 10,002 $ 3 $ 4,106 $ 14,111 $ 27,292,815 $ 27,306,926 $ 4,088 Investor dependent: Early stage 6,270 643 500 7,413 1,515,795 1,523,208 9 Mid stage 8,127 155 — 8,282 1,579,903 1,588,185 — Later stage 3,272 — — 3,272 2,052,404 2,055,676 — Total investor dependent 17,669 798 500 18,967 5,148,102 5,167,069 9 Cash flow dependent: Sponsor led buyout — — — — 1,984,567 1,984,567 — Other 3,839 69 485 4,393 2,955,216 2,959,609 — Total cash flow dependent 3,839 69 485 4,393 4,939,783 4,944,176 — Private bank — 1,973 — 1,973 5,061,854 5,063,827 — Balance sheet dependent 6,962 62 — 7,024 2,494,500 2,501,524 — Premium wine — — 998 998 1,039,225 1,040,223 — Other 1 — — 1 45,687 45,688 — SBA loans 117 174 394 685 1,605,048 1,605,733 394 Total loans $ 38,590 $ 3,079 $ 6,483 $ 48,152 $ 47,627,014 $ 47,675,166 $ 4,491 December 31, 2020: Global fund banking $ 27,606 $ 8 $ 11 $ 27,625 $ 25,515,573 $ 25,543,198 $ — Investor dependent: Early stage 6,320 1,840 202 8,362 1,477,504 1,485,866 — Mid stage 5,984 238 907 7,129 1,557,741 1,564,870 — Later stage 5,363 — — 5,363 1,915,719 1,921,082 — Total investor dependent 17,667 2,078 1,109 20,854 4,950,964 4,971,818 — Cash flow dependent Sponsor led buyout 34 — — 34 1,989,139 1,989,173 — Other 6,510 58 — 6,568 2,938,792 2,945,360 — Total cash flow dependent 6,544 58 — 6,602 4,927,931 4,934,533 — Private bank 4,292 3,990 — 8,282 4,892,774 4,901,056 — Balance sheet dependent 987 1,089 — 2,076 2,188,947 2,191,023 — Premium wine 3,168 — 998 4,166 1,048,477 1,052,643 — Other 3 28 82 113 27,574 27,687 — SBA loans — — — — 1,559,530 1,559,530 — Total loans $ 60,267 $ 7,251 $ 2,200 $ 69,718 $ 45,111,770 $ 45,181,488 $ — Nonaccrual Loans The following table summarizes our nonaccrual loans with no allowance for credit loss at March 31, 2021 and December 31, 2020: March 31, 2021 December 31, 2020 (Dollars in thousands) Nonaccrual Loans Nonaccrual Loans with no Allowance for Credit Loss Nonaccrual Loans Nonaccrual Loans with no Allowance for Credit Loss Global fund banking $ 18 $ 8 $ 11 $ 11 Investor dependent: Early stage 7,766 376 18,340 3 Mid stage — — 4,056 3,159 Later stage 27,403 6,437 28,657 118 Total investor dependent 35,169 6,813 51,053 3,280 Cash flow dependent: Sponsor led buyout 39,848 — 39,996 — Other 5,628 572 6,004 1,138 Total cash flow dependent 45,476 572 46,000 1,138 Private bank 8,445 2,365 6,152 2,393 Balance sheet dependent — — — — Premium wine 1,139 997 998 998 Other — — 30 30 SBA loans — — — — Total nonaccrual loans $ 90,247 $ 10,755 $ 104,244 $ 7,850 Troubled Debt Restructurings As of March 31, 2021, we had 15 TDRs with a total carrying value of $72.8 million where concessions have been granted to borrowers experiencing financial difficulties, in an attempt to maximize collection. There were no unfunded commitments available for funding to the clients associated with these TDRs as of March 31, 2021. The following table summarizes our loans modified in TDRs, broken out by risk-based segment, at March 31, 2021 and December 31, 2020: (Dollars in thousands) March 31, 2021 December 31, 2020 Loans modified in TDRs: Global fund banking $ — $ — Investor dependent: Early stage 2,322 6,705 Mid stage — 4,050 Later stage 20,953 24,896 Total investor dependent 23,275 35,651 Cash flow dependent: Sponsor led buyout 39,897 21,529 Other 4,903 1,237 Total cash flow dependent 44,800 22,766 Private bank 2,079 — Balance sheet dependent — — Premium wine 2,631 2,661 Other — — SBA loans — — Total loans modified in TDRs $ 72,785 $ 61,078 The following table summarizes the recorded investment in loans modified in TDRs, broken out by risk-based segment, for modifications made during the three months ended March 31, 2021 and 2020: Three months ended March 31, (Dollars in thousands) 2021 2020 Loans modified in TDRs during the period: Global fund banking $ — $ — Investor dependent: Early stage — — Mid stage — 5,955 Later stage — 2,769 Total investor dependent — 8,724 Cash flow dependent: Sponsor led buyout 18,439 — Other 3,734 — Total cash flow dependent 22,173 — Private bank 2,079 — Balance sheet dependent — — Premium wine — — Other — — SBA loans — — Total loans modified in TDRs during the period (1) $ 24,252 $ 8,724 (1) There were $1.8 million and $12.5 million of partial charge-offs for the three months ended March 31, 2021 and 2020, respectively. During the three months ended March 31, 2021 and 2020, new TDRs of $22.2 million and $8.3 million, respectively, were modified through payment deferrals granted to our clients. During the three months ended March 31, 2021 and 2020, $2.1 million and $0.4 million, respectively, were modified through forgiveness of principal. The following table summarizes the recorded investment in loans modified in TDRs within the previous 12 months that subsequently defaulted during the three months ended March 31, 2021 and 2020: Three months ended March 31, (Dollars in thousands) 2021 2020 TDRs modified within the previous 12 months that defaulted during the period: Global fund banking $ — $ — Investor dependent: Early stage — — Mid stage — — Later stage — — Total investor dependent — — Cash flow dependent: Sponsor led buyout — — Other 3,734 — Total cash flow dependent 3,734 — Private bank — — Balance sheet dependent — — Premium wine — 8,247 Other — — SBA loans — — Total TDRs modified within the previous 12 months that defaulted in the period $ 3,734 $ 8,247 Charge-offs and defaults on previously restructured loans are evaluated to determine the impact to the allowance for credit losses for loans, if any. The evaluation of these defaults may impact the assumptions used in calculating the reserve on other TDRs and nonaccrual loans as well as management’s overall outlook of macroeconomic factors that affect the reserve on the loan portfolio as a whole. After evaluating the charge-offs and defaults experienced on our TDRs we determined that no change to our reserving methodology for TDRs was necessary to determine the allowance for credit losses for loans as of March 31, 2021. Allowance for Credit Losses: Unfunded Credit Commitments We maintain a separate allowance for credit losses for unfunded credit commitments that is determined using a methodology that is inherently similar to the methodology used for calculating the allowance for credit losses for loans. At March 31, 2021 , our ACL estimates utilized the improved Moody's economic forecasts from March 2021 as mentioned above. The following table summarizes the activity relating to our allowance for credit losses for unfunded credit commitments for the three months ended March 31, 2021 and 2020: Three months ended March 31, (Dollars in thousands) 2021 2020 Allowance for credit losses: unfunded credit commitments, beginning balance $ 120,796 $ 67,656 Impact of adopting ASC 326 — 22,826 Reduction of credit losses (16,067) (5,477) Foreign currency translation adjustments 21 (315) Allowance for credit losses: unfunded credit commitments, ending balance (1) $ 104,750 $ 84,690 (1) The “allowance for credit losses: unfunded credit commitments” is included as a component of “other liabilities” on our unaudited interim consolidated balance sheets. See Note 14 — “Off-Balance Sheet Arrangements, Guarantees and Other Commitments” of this report for additional disclosures related to our commitments to extend credit.

Goodwill and Other Intangible A

Goodwill and Other Intangible Assets	3 Months Ended
Goodwill and Other Intangible Assets	Mar. 31, 2021
Goodwill and Intangible Assets Disclosure [Abstract]
Goodwill and Other Intangible Assets	Goodwill and Other Intangible Assets Goodwill Goodwill at both March 31, 2021 and December 31, 2020 was $142.7 million, which was a result of revenue generating synergies expected from our acquisition of SVB Leerink in 2019 as well as our acquisition of WestRiver Group's debt fund business in December 2020. Other Intangible Assets The components of net other intangible assets were as follows: March 31, 2021 December 31, 2020 (Dollars in thousands) Gross Amount Accumulated Amortization Net Carrying Amount Gross Amount Accumulated Amortization Net Carrying Amount Other intangible assets: Customer relationships $ 42,000 $ 8,591 $ 33,409 $ 42,000 $ 7,636 $ 34,364 Other 36,300 10,384 25,916 36,300 9,229 27,071 Total other intangible assets $ 78,300 $ 18,975 $ 59,325 $ 78,300 $ 16,865 $ 61,435 For the three months ended March 31, 2021, we recorded amortization expense of $2.1 million. Assuming no future impairments of other intangible assets or additional acquisitions or dispositions, the following table presents the Company's future expected amortization expense for other intangible assets that will continue to be amortized as of March 31, 2021: Years ended December 31, Other 2021 (excluding the three months ended March 31, 2021) $ 6,107 2022 8,141 2023 8,141 2024 8,141 2025 6,900 2026 and thereafter 21,895 Total future amortization expense $ 59,325

Short-Term Borrowings and Long-

Short-Term Borrowings and Long-Term Debt	3 Months Ended
Short-Term Borrowings and Long-Term Debt	Mar. 31, 2021
Debt Disclosure [Abstract]
Short-Term Borrowings and Long-Term Debt	Short-Term Borrowings and Long-Term Debt The following table represents outstanding short-term borrowings and long-term debt at March 31, 2021 and December 31, 2020: Carrying Value (Dollars in thousands) Maturity Principal value at March 31, 2021 March 31, December 31, Short-term borrowings: Other short-term borrowings (1) $ 38,434 $ 38,434 $ 20,553 Total short-term borrowings $ 38,434 $ 20,553 Long-term debt: 3.50% Senior Notes January 29, 2025 $ 350,000 $ 348,441 $ 348,348 3.125% Senior Notes June 5, 2030 500,000 495,387 495,280 1.800% Senior Notes February 2, 2031 500,000 494,355 — Total long-term debt $ 1,338,183 $ 843,628 (1) Represents cash collateral received from certain counterparties in relation to market value exposures of derivative contracts in our favor. Interest expense related to short-term borrowings and long-term debt was $8.7 million and $5.9 million for the three months ended March 31, 2021 and compared to comparable 2020 period. The weighted average interest rate associated with our short-term borrowings was 0.06 percent as of March 31, 2021 and 0.80 percent as of as of December 31, 2020. Short-term Borrowings We have certain facilities in place to enable us to access short-term borrowings on a secured and unsecured basis. Our secured facilities include collateral pledged to the FHLB of San Francisco and the discount window at the FRB (using both fixed income securities and loans as collateral). Our unsecured facility consists of our uncommitted federal funds lines. As of March 31, 2021, collateral pledged to the FHLB of San Francisco was comprised primarily of fixed income investment securities and loans and had a carrying value of $6.9 billion, of which $5.8 billion was available to support additional borrowings. As of March 31, 2021, collateral pledged to the discount window at the FRB was comprised of fixed income investment securities and had a carrying value of $0.9 billion, all of which was unused and available to support additional borrowings. Our total unused and available borrowing capacity for our uncommitted federal funds lines totaled $1.9 billion at March 31, 2021. Our total unused and available borrowing capacity under our master repurchase agreements with various financial institutions totaled $4.0 billion at March 31, 2021. 3.50% Senior Notes In January 2015, SVB Financial issued $350 million of 3.50% Senior Notes due in January 2025. We received net proceeds of approximately $346.4 million after deducting underwriting discounts and commissions and issuance costs. The balance of our 3.50% Senior Notes at March 31, 2021 was $348.4 million, which is reflective of $1.5 million of debt issuance costs and a $0.1 million discount. 3.125% Senior Notes On June 5, 2020, the Company issued $500 million of 3.125% Senior Notes due in June 2030 ("3.125% Senior Notes"). The 3.125% Senior Notes may be redeemed by us, at our option, at any time prior to March 5, 2030, at a redemption price equal to the full aggregate principal amount plus a “make-whole” premium payment. We received net proceeds from this offering of approximately $495.4 million after deducting underwriting discounts and commissions and issuance costs. The balance of our 3.125% Senior Notes at March 31, 2021 was $495.4 million, which is reflective of $4.3 million of debt issuance costs and a $0.3 million discount. 1.800% Senior Notes On February 2, 2021 the Company issued $500 million of 1.800% Senior Notes due February 2031 ("1.800% Senior Notes"), with interest payments starting August 2, 2021, and payable every February 2 nd and August 2 nd . The notes will be senior unsecured obligations of SVB Financial Group and will rank equally with all of our other unsecured and unsubordinated indebtedness. We received net proceeds from this offering of approximately $494.3 million after deducting underwriting discounts and commissions and issuance costs. The balance of our 1.800%

Derivative Financial Instrument

Derivative Financial Instruments	3 Months Ended
Derivative Financial Instruments	Mar. 31, 2021
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Derivative Financial Instruments	Derivative Financial Instruments We primarily use derivative financial instruments to manage interest rate risk and currency exchange rate risk and to assist customers with their risk management objectives, which may include currency exchange rate risks and interest rate risks. Also, in connection with negotiating credit facilities and certain other services, we often obtain equity warrant assets giving us the right to acquire stock in private, venture-backed companies in the technology and life science/healthcare industries. Interest Rate Risk Interest rate risk is our primary market risk and can result from timing and volume differences in the repricing of our interest rate sensitive assets and liabilities and changes in market interest rates. To manage interest rate risk on our interest rate sensitive assets, we have entered into interest rate swap contracts to hedge against future changes in interest rates. We designate these interest rate swap contracts as fair value and cash flow hedges. Fair Value Hedges To manage interest rate risk on our available-for-sale securities portfolio, we enter into pay-fixed, receive-floating interest rate swap contracts to hedge against exposure to changes in the fair value of the securities resulting from changes in interest rates. We designate these interest rate swap contracts as fair value hedges that qualify for hedge accounting under ASC 815, Derivatives and Hedging ("ASC 815") and have elected to account for them using the last-of-layer method as outlined in ASC 815. We record the fair value hedges in other assets and other liabilities. For qualifying fair value hedges, both the changes in the fair value of the derivative and the portion of the fair value adjustments associated with the last-of-layer attributable to the hedged risk will be recognized into earnings as they occur. Derivative amounts affecting earnings are recognized consistent with the classification of the hedged item in the line item "investment securities" as part of interest income, a component of consolidated net income. We assess hedge effectiveness under ASC 815 on a quarterly basis to ensure all hedges remain highly effective and hedge accounting under ASC 815 can be applied. In conjunction with the assessment of effectiveness, we assess the hedged item to ensure it is expected to be outstanding at the hedged item’s assumed maturity date and the last-of-layer method of accounting under ASC 815 can be applied. If the hedging relationship no longer exists or no longer qualifies as a hedge per ASC 815, any remaining fair value basis adjustments are allocated to the individual assets in the portfolio and amortized into earnings over a period consistent with the amortization of other discounts and premiums associated with the respective assets. The following table summarizes the amortized cost basis of hedged assets that are designated and qualify as fair value hedges and the cumulative amount of fair value hedging adjustments included in the carrying value that have been recorded on our consolidated balance sheets as of March 31, 2021: March 31, 2021 (Dollars in thousands) Amortized Cost Basis of the Hedged Assets Cumulative Amount of Fair Value Hedging Adjustment Included in the Carrying Amount of the Hedged Assets Available-for-sale securities (1) $ 21,312,139 $ (16,975) (1) These amounts include the amortized cost basis of closed portfolios used to designate hedging relationships in which the hedged item is the last layer expected to be remaining at the end of the hedging relationship. At March 31, 2021, the amortized cost basis of the closed portfolios used in these hedging relationships was $21.3 billion, the amounts of the designated hedged items was $10.0 billion and the cumulative basis adjustments associated with these hedging relationships was $17.0 million. Cash Flow Hedges To manage interest rate risk on our variable-interest rate loan portfolio, we enter into interest rate swap contracts to hedge against future changes in interest rates by using hedging instruments to lock in future cash inflows that would otherwise be impacted by movements in the market interest rates. We designate these interest rate swap contracts as cash flow hedges that qualify for hedge accounting under ASC 815 and record them in other assets and other liabilities. For qualifying cash flow hedges, changes in the fair value of the derivative are recorded in accumulated other comprehensive income and recognized in earnings as the hedged item affects earnings. Derivative amounts affecting earnings are recognized consistent with the classification of the hedged item in the line item "Loans" as part of interest income, a component of consolidated net income. We assess hedge effectiveness under ASC 815 on a quarterly basis to ensure all hedges remain highly effective and hedge accounting under ASC 815 can be applied. If the hedging relationship no longer exists or no longer qualifies as a hedge per ASC 815, any amounts remaining as gain or loss in accumulated other comprehensive income are reclassified into earnings in the line item "Loans" as part of interest income, a component of consolidated net income. As of March 31, 2020, all derivatives previously classified as hedges with notional balances totaling $5.0 billion and a net asset fair value of $227.5 million were terminated. As of March 31, 2021, the total unrealized gains on terminated cash flow hedges remaining in AOCI was $163.4 million, $118.0 million net of tax. The unrealized gains will be reclassified into interest income as the underlying forecasted transactions impact earnings through the original maturity of the hedged forecasted transactions. The total remaining term over which the unrealized gains will be reclassified into earnings is approximately four years. Currency Exchange Risk We enter into foreign exchange forward contracts to economically reduce our foreign exchange exposure risk associated with the net difference between foreign currency denominated assets and liabilities. We do not designate any foreign exchange forward contracts as derivative instruments that qualify for hedge accounting. Gains or losses from changes in currency rates on foreign currency denominated instruments are recorded in the line item “other” as part of noninterest income, a component of consolidated net income. We may experience ineffectiveness in the economic hedging relationship, because the instruments are revalued based upon changes in the currency’s spot rate on the principal value, while the forwards are revalued on a discounted cash flow basis. We record forward agreements in gain positions in other assets and loss positions in other liabilities, while net changes in fair value are recorded in the line item “other” as part of noninterest income, a component of consolidated net income. Other Derivative Instruments Also included in our derivative instruments are equity warrant assets and client forward and option contracts, and client interest rate contracts. For further description of these other derivative instruments, refer to Note 2 — “Summary of Significant Accounting Policies" under Part II, Item 8 of our 2020 Form 10-K. Counterparty Credit Risk We are exposed to credit risk if counterparties to our derivative contracts do not perform as expected. We mitigate counterparty credit risk through credit approvals, limits, monitoring procedures and obtaining collateral, as appropriate. With respect to measuring counterparty credit risk for derivative instruments, we measure the fair value of a group of financial assets and financial liabilities on a net risk basis by counterparty portfolio. The total notional or contractual amounts and fair value of our derivative financial instruments at March 31, 2021 and December 31, 2020 were as follows: March 31, 2021 December 31, 2020 Notional or Fair Value Notional or Fair Value (Dollars in thousands) Derivative Assets (1) Derivative Liabilities (1) Derivative Assets (1) Derivative Liabilities (1) Derivatives designated as hedging instruments: Interest rate risks: Interest rate swaps (2) $ 10,000,000 $ — $ — $ — $ — $ — Interest rate swaps — — — — — — Derivatives not designated as hedging instruments: Currency exchange risks: Foreign exchange forwards 687,576 19,109 — 68,381 306 — Foreign exchange forwards 97,950 — 2,626 566,988 — 20,566 Other derivative instruments: Equity warrant assets 299,101 244,334 — 253,153 203,438 — Client foreign exchange forwards 9,015,147 220,034 — 8,025,973 214,969 — Client foreign exchange forwards 8,675,502 — 198,866 7,490,723 — 188,565 Client foreign currency options 63,503 1,040 — 97,529 1,702 — Client foreign currency options 63,503 — 1,040 97,522 — 1,702 Client interest rate derivatives (2) 1,212,842 65,123 — 1,082,265 67,854 — Client interest rate derivatives (2) 1,381,626 — 68,954 1,250,975 — 26,646 Total derivatives not designated as hedging instruments 549,640 271,486 488,269 237,479 Total derivatives $ 549,640 $ 271,486 $ 488,269 $ 237,479 (1) Derivative assets and liabilities are included in "accrued interest receivable and other assets" and "other liabilities " , respectively, on our consolidated balance sheets. (2) The amount reported reflects reductions of approximately $22.7 million of derivative assets and $45.4 million of derivative liabilities at March 31, 2021 and December 31, 2020, respectively, reflecting variation margin treated as settlement of the related derivative fair values for legal and accounting purposes as required by central clearing houses. A summary of our derivative activity and the related impact on our consolidated statements of income for the three months ended March 31, 2021 and 2020 is as follows: Three months ended March 31, (Dollars in thousands) Statement of income location 2021 2020 Derivatives designated as hedging instruments: Interest rate risks: Amounts reclassified from accumulated other comprehensive income into income Interest income - loans $ 15,657 $ 2,089 Change in fair value of interest rate swaps hedging investment securities Interest income - investment securities taxable 18,494 — Change in fair value of hedged investment securities Interest income - investment securities taxable (16,975) — Net gains associated with interest rate risk derivatives $ 17,176 $ 2,089 Derivatives not designated as hedging instruments: Currency exchange risks: Losses on revaluations of internal foreign currency instruments, net Other noninterest income $ (28,129) $ (8,375) Gains on internal foreign exchange forward contracts, net Other noninterest income 26,853 8,668 Net (losses) gains associated with internal currency risk $ (1,276) $ 293 Other derivative instruments: Losses on revaluations of client foreign currency instruments, net Other noninterest income $ (2,427) $ (8,284) Gains on client foreign exchange forward contracts, net Other noninterest income 2,751 7,747 Net gains (losses) associated with client currency risk $ 324 $ (537) Net gains on equity warrant assets Gains on equity warrant assets, net $ 221,685 $ 13,395 Net gains (losses) on other derivatives Other noninterest income $ 4,521 $ (4,345) Balance Sheet Offsetting Certain of our derivative and other financial instruments are subject to enforceable master netting arrangements with our counterparties. These agreements provide for the net settlement of multiple contracts with a single counterparty through a single payment, in a single currency, in the event of default on or termination of any one contract. The following table summarizes our assets subject to enforceable master netting arrangements as of March 31, 2021 and December 31, 2020: Gross Amounts of Recognized Assets Gross Amounts offset in the Statement of Financial Position Net Amounts of Assets Presented in the Statement of Financial Position Gross Amounts Not Offset in the Statement of Financial Position but Subject to Master Netting Arrangements Net Amount (Dollars in thousands) Financial Instruments Cash Collateral Received (1) March 31, 2021 Derivative assets: Foreign exchange forwards $ 239,143 $ — $ 239,143 $ (77,667) $ (38,286) $ 123,190 Foreign currency options 1,040 — 1,040 (413) (148) 479 Client interest rate derivatives 65,123 — 65,123 (65,123) — — Total derivative assets 305,306 — 305,306 (143,203) (38,434) 123,669 Reverse repurchase, securities borrowing, and similar arrangements 288,438 — 288,438 (288,438) — — Total $ 593,744 $ — $ 593,744 $ (431,641) $ (38,434) $ 123,669 December 31, 2020 Derivative assets: Foreign exchange forwards $ 215,275 $ — $ 215,275 $ (75,983) $ (20,550) $ 118,742 Foreign currency options 1,702 — 1,702 (1,045) (3) 654 Client interest rate derivatives 67,854 — 67,854 (67,854) — — Total derivative assets 284,831 — 284,831 (144,882) (20,553) 119,396 Reverse repurchase, securities borrowing, and similar arrangements 226,847 — 226,847 (226,847) — — Total $ 511,678 $ — $ 511,678 $ (371,729) $ (20,553) $ 119,396 (1) Cash collateral received from our counterparties in relation to market value exposures of derivative contracts in our favor is recorded as a component of “short-term borrowings” on our consolidated balance sheets. The following table summarizes our liabilities subject to enforceable master netting arrangements as of March 31, 2021 and December 31, 2020: Gross Amounts of Recognized Liabilities Gross Amounts offset in the Statement of Financial Position Net Amounts of Liabilities Presented in the Statement of Financial Position Gross Amounts Not Offset in the Statement of Financial Position but Subject to Master Netting Arrangements Net Amount (Dollars in thousands) Financial Instruments Cash Collateral Pledged (1) March 31, 2021 Derivative liabilities: Foreign exchange forwards $ 201,492 $ — $ 201,492 $ (61,303) $ (58,582) $ 81,607 Foreign currency options 1,040 — 1,040 (491) — 549 Client interest rate derivatives 68,954 — 68,954 (53,003) (15,570) 381 Total derivative liabilities 271,486 — 271,486 (114,797) (74,152) 82,537 Repurchase, securities lending, and similar arrangements — — — — — — Total $ 271,486 $ — $ 271,486 $ (114,797) $ (74,152) $ 82,537 December 31, 2020 Derivative liabilities: Foreign exchange forwards $ 209,131 $ — $ 209,131 $ (84,547) $ (45,367) $ 79,217 Foreign currency options 1,702 — 1,702 (645) (8) 1,049 Client interest rate derivatives 26,646 — 26,646 — (26,100) 546 Total derivative liabilities 237,479 — 237,479 (85,192) (71,475) 80,812 Repurchase, securities lending, and similar arrangements — — — — — — Total $ 237,479 $ — $ 237,479 $ (85,192) $ (71,475) $ 80,812 (1) Cash collateral pledged to our counterparties in relation to market value exposures of derivative contracts in a liability position and repurchase agreements are recorded as a component of “cash and cash equivalents " on our consolidated balance sheets.

Noninterest Income

Noninterest Income	3 Months Ended
Noninterest Income	Mar. 31, 2021
Other Income and Expenses [Abstract]
Noninterest Income	Noninterest Income All of the Company's revenue from contracts with customers within the scope of ASC 606 is recognized within noninterest income. Included below is a summary of noninterest income for the three months ended March 31, 2021 and 2020: Three months ended March 31, (Dollars in thousands) 2021 2020 Noninterest income: Gains on investment securities, net $ 167,078 $ 46,055 Gains on equity warrant assets, net 221,685 13,395 Client investment fees 20,065 43,393 Foreign exchange fees 57,393 47,505 Credit card fees 27,567 28,304 Deposit service charges 25,151 24,589 Lending related fees 15,657 13,125 Letters of credit and standby letters of credit fees 13,051 11,542 Investment banking revenue 142,302 46,867 Commissions 24,439 16,022 Other 29,792 11,137 Total noninterest income $ 744,180 $ 301,934 Gains on investment securities, net Net gains on investment securities include both gains and losses from our non-marketable and other equity securities, which include public equity securities held as a result of exercised equity warrant assets, gains and losses from sales of our AFS debt securities portfolio, when applicable, and carried interest. Our non-marketable and other equity securities portfolio primarily represents investments in venture capital and private equity funds, our China joint venture (SPD-SVB), debt funds, private and public portfolio companies, which include public equity securities held as a result of exercised equity warrant assets and qualified affordable housing projects. We experience variability in the performance of our non-marketable and other equity securities from period to period, which results in net gains or losses on investment securities (both realized and unrealized). This variability is due to a number of factors, including unrealized changes in the values of our investments, changes in the amount of realized gains from distributions, changes in liquidity events and general economic and market conditions. Unrealized gains from non-marketable and other equity securities for any single period are typically driven by valuation changes. The extent to which any unrealized gains or losses will become realized is subject to a variety of factors, including, among other things, the expiration of certain sales restrictions to which these equity securities may be subject to (e.g., lock-up agreements), changes in prevailing market prices, market conditions, the actual sales or distributions of securities, and the timing of such actual sales or distributions, which, to the extent such securities are managed by our managed funds, are subject to our funds' separate discretionary sales/distributions and governance processes. Carried interest is comprised of preferential allocations of profits recognizable when the return on assets of our individual managed fund of funds and direct venture funds exceeds certain performance targets and is payable to us, as the general partners of the managed funds. The carried interest we earn is often shared with employees, who are also members of the general partner entities. We record carried interest on a quarterly basis by measuring fund performance to date versus the performance target. For our unconsolidated managed funds, carried interest is recorded as gains on investment securities, net. For our consolidated managed funds, it is recorded as a component of net income attributable to noncontrolling interests. Carried interest allocated to others is recorded as a component of net income attributable to noncontrolling interests. Any carried interest paid to us (or our employees) may be subject to reversal to the extent fund performance declines to a level where inception to date carried interest is lower than actual payments made by the funds. The limited partnership agreements for our funds provide that carried interest is generally not paid to the general partners until the funds have provided a full return of contributed capital to the limited partners. Accrued, but unpaid carried interest may be subject to reversal to the extent that the fund performance declines to a level where inception-to-date carried interest is less than prior amounts recognized. Carried interest income is accounted for under an ownership model based on ASC 323 — Equity Method of Accounting and ASC 810 — Consolidation. Our AFS securities portfolio is a fixed income investment portfolio that is managed with the objective of earning an appropriate portfolio yield over the long-term while maintaining sufficient liquidity and credit diversification as well as addressing our asset/liability management objectives. Though infrequent, sales of debt securities in our AFS securities portfolio may result in net gains or losses and are conducted pursuant to the guidelines of our investment policy related to the management of our liquidity position and interest rate risk. Gains on investment securities are recognized outside of the scope of ASC 606 as it explicitly excludes noninterest income earned from our investment-related activities. A summary of gains and losses on investment securities for the three months ended March 31, 2021 and 2020 is as follows: Three months ended March 31, (Dollars in thousands) 2021 2020 Gains (losses) on non-marketable and other equity securities, net $ 167,078 $ (15,110) Gains on sales of available-for-sale securities, net — 61,165 Total gains on investment securities, net $ 167,078 $ 46,055 Gains on equity warrant assets, net In connection with negotiating credit facilities and certain other services, we often obtain rights to acquire stock in the form of equity warrant assets in primarily private, venture-backed companies in the technology and life science/healthcare industries. Any changes in fair value from the grant date fair value of equity warrant assets will be recognized as increases or decreases to other assets on our balance sheet and as net gains or losses on equity warrant assets, in noninterest income, a component of consolidated net income. Gains on equity warrant assets are recognized outside of the scope of ASC 606 as it explicitly excludes noninterest income earned from our derivative-related activities. A summary of net gains on equity warrant assets for the three months ended March 31, 2021 and 2020 is as follows: Three months ended March 31, (Dollars in thousands) 2021 2020 Equity warrant assets: Gains on exercises, net $ 159,637 $ 19,193 Terminations (249) (326) Changes in fair value, net 62,297 (5,472) Total net gains on equity warrant assets $ 221,685 $ 13,395 Client investment fees Client investment fees include fees earned from discretionary investment management services for substantially all clients, managing clients’ portfolios based on their investment policies, strategies and objectives and investment advisory fees. Revenue is recognized on a monthly basis upon completion of our performance obligation and consideration is typically received in the subsequent month. Included in our sweep money market fees are Rule 12(b)-1 fees, revenue sharing and customer transactional-based fees. Rule 12(b)-1 fees and revenue sharing are recognized as earned based on client funds that are invested in the period, typically monthly. Transactional based fees are earned and recognized on fixed income securities when the transaction is executed on the clients' behalf. Amounts paid to third-party service providers are predominantly expensed, such that client investment fees are recorded gross of payments made to third parties. A summary of client investment fees by instrument type for the three months ended March 31, 2021 and 2020 is as follows: Three months ended March 31, (Dollars in thousands) 2021 2020 Client investment fees by type: Sweep money market fees $ 10,461 $ 23,049 Asset management fees (1) 9,020 9,137 Repurchase agreement fees 584 11,207 Total client investment fees (2) $ 20,065 $ 43,393 (1) Represents fees earned from investments in third-party money market mutual funds and fixed-income securities managed by SVB Asset Management. (2) Represents fees earned on client investment funds that are maintained at third-party financial institutions and are not recorded on our balance sheet. Foreign exchange fees Foreign exchange fees represent the income differential between purchases and sales of foreign currency on behalf of our clients, primarily from spot contracts. Foreign exchange spot contract fees are recognized upon the completion of the single performance obligation, the execution of a spot trade in exchange for a fee. In line with customary business practice, the legal right transfers to the client upon execution of a foreign exchange contract on the trade date, and as such, we currently recognize our fees based on the trade date and the transactions are typically settled within two business days. Forward contract and option premium fees are recognized outside of the scope of ASC 606 as it explicitly excludes noninterest income earned from our derivative-related activities. A summary of foreign exchange fee income by instrument type for the three months ended March 31, 2021 and 2020 is as follows: Three months ended March 31, (Dollars in thousands) 2021 2020 Foreign exchange fees by instrument type: Spot contract commissions $ 54,929 $ 40,934 Forward contract commissions 2,348 6,339 Option premium fees 116 232 Total foreign exchange fees $ 57,393 $ 47,505 Credit card fees Credit card fees include interchange income from credit and debit cards and fees earned from processing transactions for merchants. Interchange income is earned after satisfying our performance obligation of providing nightly settlement services to a payment network. Costs related to rewards programs are recorded when the rewards are earned by the customer and presented as a reduction to interchange fee income. Rewards programs continue to be accounted for under ASC 310 - Receivables . Our performance obligations for merchant service fees are to transmit data and funds between the merchant and the payment network. Credit card interchange and merchant service fees are earned daily upon completion of transaction settlement services. Annual card service fees are recognized on a straight-line basis over a 12-month period and continue to be accounted for under ASC 310 - Receivables . A summary of credit card fees by instrument type for the three months ended March 31, 2021 and 2020 is as follows: Three months ended March 31, (Dollars in thousands) 2021 2020 Credit card fees by instrument type: Card interchange fees, net $ 22,848 $ 21,775 Merchant service fees 3,772 5,027 Card service fees 947 1,502 Total credit card fees $ 27,567 $ 28,304 Deposit service charges Deposit service charges include fees earned from performing cash management activities and other deposit account services. Deposit services include, but are not limited to, the following: receivables services, which include merchant services, remote capture, lockbox, electronic deposit capture, and fraud control services. Payment and cash management products and services include wire transfer and automated clearing house payment services to enable clients to transfer funds more quickly, as well as business bill pay, business credit and debit cards, account analysis, and disbursement services. Deposit service charges are recognized over the period in which the related performance obligation is provided, generally on a monthly basis, and are presented in the "Disaggregation of revenue from contracts with customers" table below. Lending related fees Unused commitment fees, minimum finance fees and unused line fees are recognized as earned on a monthly basis. Fees that qualify for syndication treatment are recognized at the completion of the syndicated loan deal for which the fees were received. Lending related fees are recognized outside of the scope of ASC 606 as it explicitly excludes noninterest income earned from our lending-related activities. A summary of lending related fees by instrument type for the three months ended March 31, 2021 and 2020 is as follows: Three months ended March 31, (Dollars in thousands) 2021 2020 Lending related fees by instrument type: Unused commitment fees $ 12,256 $ 8,406 Other 3,401 4,719 Total lending related fees $ 15,657 $ 13,125 Letters of credit and standby letters of credit fees Commercial and standby letters of credit represent conditional commitments issued by us on behalf of a client to guarantee the performance of the client to a third party when certain specified future events have occurred. Fees generated from letters of credit and standby letters of credit are deferred as a component of other liabilities and recognized in noninterest income over the commitment period using the straight-line method, based on the likelihood that the commitment being drawn down will be remote. Letters of credit and standby letters of credit fees are recognized outside of the scope of ASC 606 as it explicitly excludes noninterest income earned from our lending related activities. Investment banking revenue We earn investment banking revenue from clients for providing services related to securities underwriting, private placements and advisory services on strategic matters such as mergers and acquisitions. Underwriting fees are attributable to public and private offerings of equity and debt securities and are recognized at the point in time when the offering has been deemed to be completed by the lead manager of the underwriting group. Once the offering is completed, the performance obligation has been satisfied; we recognize the applicable management fee as well as the underwriting fee, net of consideration payable to customers. Private placement fees are recognized at the point in time when the private placement is completed, which is generally when the client accepts capital from the fund raise. Advisory fees from mergers and acquisitions engagements are generally recognized at the point in time when the related transaction is completed. Expenses are deferred only to the extent they are explicitly reimbursable by the client and the related revenue is recognized at a point in time. All other deal-related expenses are expensed as incurred. We have determined that we act as principal in the majority of these transactions and therefore present expenses gross within other operating expenses. A summary of investment banking revenue by instrument type for the three months ended March 31, 2021 and 2020 is as follows: Three months ended March 31, (Dollars in thousands) 2021 2020 Investment banking revenue: Underwriting fees $ 125,076 $ 31,290 Advisory fees 4,450 15,487 Private placements and other 12,776 90 Total investment banking revenue $ 142,302 $ 46,867 Commissions Commissions include commissions received from customers for the execution of agency-based brokerage transactions in listed and over-the-counter equities. The execution of each trade order represents a distinct performance obligation and the transaction price is fixed at the point in time or trade order execution. Trade execution is satisfied at the point in time that the customer has control of the asset and as such, fees are recorded on a trade date basis. Commissions are presented in the "Disaggregation of revenue from contracts with customers" table below. Other Other noninterest income primarily includes income from fund management fees, gains from conversion of convertible debt options and service revenue. Fund management fees are comprised of fees charged directly to our managed funds of funds and direct venture funds. Fund management fees are based upon the contractual terms of the limited partnership agreements and are generally recognized as earned over the specified contract period, which is generally equal to the life of the individual fund. Fund management fees are calculated as a percentage of committed capital and collected in advance and are received quarterly. Fund management fees for certain of our limited partnership agreements are calculated as a percentage of distributions made by the funds and revenue is recorded only at the time of a distribution event. As distribution events are not predetermined for these certain funds, management fees are considered variable and constrained under ASC 606. Gains from conversion of convertible debt options represent unrealized valuation gains on loan conversion derivative assets, and realized gains from the conversion of debt instruments, convertible into a third party’s common stock upon a triggering event such as an IPO. Gains from conversion of convertible debt options are recognized outside of the scope of ASC 606 as it explicitly excludes noninterest income earned from our derivative-related activities. Other service revenue primarily consists of dividend income on FHLB/FRB stock, correspondent bank rebate income, incentive fees related to carried interest and other fee income. We recognize revenue when our performance obligations are met and record revenues on a daily/monthly, quarterly, semi-annual or annual basis. For event driven revenue sources, we recognize revenue when: (i) persuasive evidence of an arrangement exists, (ii) we have performed the service, provided we have no other remaining obligations to the customer, (iii) the fee is fixed or determinable and (iv) collectability is probable. A summary of other noninterest income by instrument type for the three months ended March 31, 2021 and 2020 is as follows: Three months ended March 31, (Dollars in thousands) 2021 2020 Other noninterest income by instrument type: Fund management fees $ 14,559 $ 7,908 Net losses on revaluation of foreign currency instruments, net of foreign exchange forward contracts (1) (952) (244) Other service revenue 16,185 3,473 Total other noninterest income $ 29,792 $ 11,137 (1) Represents the net revaluation of client and internal foreign currency denominated financial instruments. We enter into foreign exchange forward contracts to economically reduce our foreign exchange exposure related to client and internal foreign currency denominated financial instruments. Disaggregation of revenue from contracts with customers The following tables present our revenues from contracts with customers disaggregated by revenue source and segment for the three months ended March 31, 2021 and 2020: Three months ended March 31, 2021 Global SVB Private SVB Capital (2) SVB Other Items Total Revenue from contracts with customers: Client investment fees $ 19,253 $ 812 $ — $ — $ — $ 20,065 Spot contract commissions 54,603 158 — — 168 54,929 Card interchange fees, gross 41,293 4 — — 267 41,564 Merchant service fees 3,772 — — — — 3,772 Deposit service charges 24,550 19 — — 582 25,151 Investment banking revenue — — — 142,302 — 142,302 Commissions — — — 24,439 — 24,439 Fund management fees — — 13,119 1,440 — 14,559 Performance fees — — 69 — — 69 Correspondent bank rebates 1,289 — — — — 1,289 Total revenue from contracts with customers $ 144,760 $ 993 $ 13,188 $ 168,181 $ 1,017 $ 328,139 Revenues outside the scope of ASC 606 (1) 13,911 5 55,406 2,786 343,933 416,041 Total noninterest income $ 158,671 $ 998 $ 68,594 $ 170,967 $ 344,950 $ 744,180 (1) Amounts are accounted for under separate guidance than ASC 606. (2) Global Commercial Bank’s, SVB Capital’s and SVB Leerink's components of noninterest income are shown net of noncontrolling interests. Noncontrolling interest is included within “Other Items. " Three months ended March 31, 2020 Global SVB Private SVB Capital (2) SVB Other Items Total Revenue from contracts with customers: Client investment fees $ 42,736 $ 657 $ — $ — $ — $ 43,393 Spot contract commissions 40,675 161 — — 98 40,934 Card interchange fees, gross 35,724 7 — — 566 36,297 Merchant service fees 5,027 — — — — 5,027 Deposit service charges 24,238 27 — — 324 24,589 Investment banking revenue — — — 46,867 — 46,867 Commissions — — — 16,022 — 16,022 Fund management fees — — 6,478 1,430 — 7,908 Correspondent bank rebates 1,403 — — — — 1,403 Total revenue from contracts with customers $ 149,803 $ 852 $ 6,478 $ 64,319 $ 988 $ 222,440 Revenues outside the scope of ASC 606 (1) 17,031 48 (1,560) (1,642) 65,617 79,494 Total noninterest income $ 166,834 $ 900 $ 4,918 $ 62,677 $ 66,605 $ 301,934 (1) Amounts are accounted for under separate guidance than ASC 606. (2) Global Commercial Bank’s, SVB Capital’s and SVB Leerink's components of noninterest income are shown net of noncontrolling interests. Noncontrolling interest is included within “Other Items. " The timing of revenue recognition may differ from the timing of cash settlements or invoicing to customers. We record a receivable when revenue is recognized prior to invoicing, and unearned revenue when revenue is recognized subsequent to receipt of consideration. These assets and liabilities are reported on the consolidated balance sheets on a contract-by-contract basis at the end of each reporting period. During the three months ended March 31, 2021 and 2020, changes in our contract assets, contract liabilities and receivables were not material. Additionally, revenues recognized during the three months ended March 31, 2021 and 2020 that were included in the corresponding contract liability balance at the beginning of the periods were not material.

Other Noninterest Expense

Other Noninterest Expense	3 Months Ended
Other Noninterest Expense	Mar. 31, 2021
Other Income and Expenses [Abstract]
Other Noninterest Expense	Other Noninterest Expense A summary of other noninterest expense for the three months ended March 31, 2021 and 2020 is as follows: Three months ended March 31, (Dollars in thousands) 2021 2020 Lending and other client related processing costs $ 7,516 $ 9,158 Correspondent bank fees 4,301 3,986 Investment banking activities 6,730 3,030 Trade order execution costs 2,988 2,745 Data processing services 4,606 3,454 Telephone 1,872 2,227 Dues and publications 1,103 1,130 Postage and supplies 570 856 Other 15,770 14,117 Total other noninterest expense $ 45,456 $ 40,703

Segment Reporting

Segment Reporting	3 Months Ended
Segment Reporting	Mar. 31, 2021
Segment Reporting [Abstract]
Segment Reporting	Segment Reporting We have four reportable segments for management reporting purposes: Global Commercial Bank, SVB Private Bank, SVB Capital and SVB Leerink. The results of our operating segments are based on our internal management reporting process. Our Global Commercial Bank and SVB Private Bank segments primary source of revenue is from net interest income, which is primarily the difference between interest earned on loans, net of funds transfer pricing (“FTP”), and interest paid on deposits, net of FTP. Accordingly, these segments are reported using net interest income, net of FTP. FTP is an internal measurement framework designed to assess the financial impact of a financial institution’s sources and uses of funds. It is the mechanism by which a funding credit is given for deposits raised, and a funding charge is made for funded loans. FTP is calculated at an instrument level based on account characteristics. We also evaluate performance based on provision for credit losses, noninterest income and noninterest expense, which are presented as components of segment operating profit or loss. In calculating each operating segment’s noninterest expense, we consider the direct costs incurred by the operating segment as well as certain allocated direct costs. As part of this review, we allocate certain corporate overhead costs to a corporate account. We do not allocate income tax expense or the provisions for unfunded credit commitments or held-to-maturity securities (included in provision for credit losses) to our segments. Additionally, our management reporting model is predicated on average asset balances; therefore, period-end asset balances are not presented for segment reporting purposes. Changes in an individual client’s primary relationship designation have resulted, and in the future may result, in the inclusion of certain clients in different segments in different periods. Unlike financial reporting, which benefits from the comprehensive structure provided by GAAP, our internal management reporting process is highly subjective, as there is no comprehensive, authoritative guidance for management reporting. Our management reporting process measures the performance of our operating segments based on our internal operating structure, which is subject to change from time to time, and is not necessarily comparable with similar information for other financial services companies. For reporting purposes, SVB Financial Group has four operating segments for which we report our financial information: • Global Commercial Bank is comprised of results from the following: ◦ Our Commercial Bank products and services are provided by the Bank and its subsidiaries to commercial clients in key innovation markets. The Bank provides solutions to the financial needs of commercial clients through credit, treasury management, foreign exchange, trade finance, and other services. In addition, the Bank and its subsidiaries offer a variety of investment services and solutions to its clients that enable them to effectively manage their assets. ◦ Our Global Fund Banking Division provides banking products and services primarily to our private equity and venture capital clients. ◦ SVB Wine provides banking products and services to our premium wine industry clients, including vineyard development loans. • SVB Private Bank is the private banking division of the Bank, which provides a range of personal financial solutions for consumers. Our clients are primarily private equity/venture capital professionals and executive leaders of the innovation companies they support. We offer a customized suite of private banking services, including mortgages, home equity lines of credit, restricted and private stock loans, capital call lines of credit and other secured and unsecured lending products, as well as cash and wealth management services. In addition, we provide real estate secured loans to eligible employees through our Employee Home Ownership Program. • SVB Capital is the funds management business of SVB Financial Group, which focuses primarily on venture capital investments. SVB Capital manages funds (primarily venture capital funds) on behalf of third-party limited partners and, on a more limited basis, SVB Financial Group. The SVB Capital family of funds is comprised of direct venture funds that invest in companies, funds of funds that invest in other venture capital funds, investments in certain debt funds in which we are a strategic investor and WestRiver Group's debt fund business. SVB Capital generates income for the Company primarily from investment returns (including carried interest allocations) and management fees. • SVB Leerink is an investment bank specializing in the equity and convertible capital markets, mergers and acquisitions, equity research and sales and trading for growth and innovation-minded healthcare and life science companies and operates as a wholly-owned subsidiary of SVB Financial. SVB Leerink provides investment banking services across all subsectors of healthcare including: biotechnology, pharmaceuticals, medical devices, diagnostic and life science tools, healthcare services and digital health. SVB Leerink focuses on two primary lines of business: (i) investment banking focused on providing companies with capital-raising services, financial advice on mergers and acquisitions, sales and trading services and equity research, and (ii) sponsorship of private investment funds. The summary financial results of our operating segments are presented along with a reconciliation to our consolidated interim results. Our segment information for the three months ended March 31, 2021 and 2020 is as follows: (Dollars in thousands) Global SVB Private SVB Capital (1) SVB Other Items (2) Total Three months ended March 31, 2021 Net interest income $ 618,609 $ 27,025 $ 2 $ 166 $ 13,777 $ 659,579 (Provision for) reduction of credit losses (44,503) 8,567 — — 17,257 (18,679) Noninterest income 158,671 998 68,594 170,967 344,950 744,180 Noninterest expense (3) (277,763) (12,958) (15,233) (136,352) (193,695) (636,001) Income before income tax expense (4) $ 455,014 $ 23,632 $ 53,363 $ 34,781 $ 182,289 $ 749,079 Total average loans, amortized cost $ 39,286,744 $ 4,977,080 $ — $ — $ 2,017,652 $ 46,281,476 Total average assets (5) (6) 108,927,856 5,028,004 576,705 767,300 9,514,743 124,814,608 Total average deposits 106,267,572 3,292,673 — — 1,048,169 110,608,414 Three months ended March 31, 2020 Net interest income $ 463,835 $ 15,164 $ 21 $ 201 $ 44,916 $ 524,137 (Provision for) reduction of credit losses (194,411) (54,490) — — 5,421 (243,480) Noninterest income 166,834 900 4,918 62,677 66,605 301,934 Noninterest expense (3) (224,855) (10,090) (8,585) (62,037) (94,018) (399,585) Income (loss) before income tax expense (4) $ 211,403 $ (48,516) $ (3,646) $ 841 $ 22,924 $ 183,006 Total average loans, amortized cost $ 29,137,484 $ 3,857,478 $ — $ — $ 665,766 $ 33,660,728 Total average assets (5) (6) 61,813,129 3,892,400 447,201 483,648 5,770,790 72,407,168 Total average deposits 59,217,433 1,922,663 — — 668,135 61,808,231 (1) Global Commercial Bank’s, SVB Capital’s and SVB Leerink's components of net interest income, noninterest income, noninterest expense and total average assets are shown net of noncontrolling interests for all periods presented. Noncontrolling interest is included within “Other Items." (2) The “Other Items” column reflects the adjustments necessary to reconcile the results of the operating segments to the consolidated financial statements prepared in conformity with GAAP. Net interest income consists primarily of interest earned from our fixed income investment portfolio, net of FTP. Noninterest income consists primarily of gains or losses on equity warrant assets, gains or losses on the sale of AFS securities and gains or losses on equity securities from exercised warrant assets. Noninterest expense consists primarily of expenses associated with corporate support functions such as finance, human resources, marketing, legal and other expenses. (3) The Global Commercial Bank segment includes direct depreciation and amortization of $6.8 million and $5.5 million for the three months ended March 31, 2021 and 2020, respectively. (4) The internal reporting model used by management to assess segment performance does not calculate income tax expense by segment. Our effective tax rate is a reasonable approximation of the segment rates. (5) Total average assets equal the greater of total average assets or the sum of total average liabilities and total average stockholders' equity for each segment to reconcile the results to the consolidated financial statements prepared in conformity with GAAP.

Off-Balance Sheet Arrangements,

Off-Balance Sheet Arrangements, Guarantees and Other Commitments	3 Months Ended
	Mar. 31, 2021
Disclosure Off Balance Sheet Arrangements Guarantees And Other Commitments Additional Information [Abstract]
Off-Balance Sheet Arrangements, Guarantees and Other Commitments	Off-Balance Sheet Arrangements, Guarantees and Other Commitments In the normal course of business, we use financial instruments with off-balance sheet risk to meet the financing needs of our customers. These financial instruments include commitments to extend credit, commercial and standby letters of credit and commitments to invest in venture capital and private equity fund investments. These instruments involve, to varying degrees, elements of credit risk. Credit risk is defined as the possibility of sustaining a loss because other parties to the financial instrument fail to perform in accordance with the terms of the contract. Commitments to Extend Credit The following table summarizes information related to our commitments to extend credit at March 31, 2021 and December 31, 2020: (Dollars in thousands) March 31, 2021 December 31, 2020 Loan commitments available for funding: (1) $ 30,923,217 $ 28,975,133 Commercial and standby letters of credit (2) 3,063,410 3,007,118 Total unfunded credit commitments $ 33,986,627 $ 31,982,251 Allowance for unfunded credit commitments (3) 104,750 120,796 (1) Represents commitments which are available for funding, due to clients meeting all collateral, compliance and financial covenants required under loan commitment agreements. (2) See below for additional information on our commercial and standby letters of credit. (3) Our allowance for credit losses for unfunded credit commitments includes an allowance for both our unfunded loan commitments and our letters of credit. Commercial and Standby Letters of Credit The table below summarizes our commercial and standby letters of credit at March 31, 2021. The maximum potential amount of future payments represents the amount that could be remitted under letters of credit if there were a total default by the guaranteed parties, without consideration of possible recoveries under recourse provisions or from the collateral held or pledged. (Dollars in thousands) Expires in One Expires After Total Amount Maximum Amount Financial standby letters of credit $ 2,833,713 $ 79,552 $ 2,913,265 $ 2,913,265 Performance standby letters of credit 118,222 20,116 138,338 138,338 Commercial letters of credit 11,807 — 11,807 11,807 Total $ 2,963,742 $ 99,668 $ 3,063,410 $ 3,063,410 Deferred fees related to financial and performance standby letters of credit were $17.0 million at March 31, 2021 and $16.9 million at December 31, 2020. At March 31, 2021, collateral in the form of cash of $1.7 billion was available to us to reimburse losses, if any, under financial and performance standby letters of credit. Commitments to Invest in Venture Capital and Private Equity Funds We make commitments to invest in venture capital and private equity funds, which generally make investments in privately-held companies. Commitments to invest in these funds are generally made for a 10-year period from the inception of the fund. Although the limited partnership agreements governing these investments typically do not restrict the general partners from calling 100% of committed capital in one year, it is customary for these funds to call most of the capital commitments over 5 to 7 years, and in certain cases, the funds may not call 100% of committed capital. The actual timing of future cash requirements to fund these commitments is generally dependent upon the investment cycle, overall market conditions, and the nature and type of industry in which the privately held companies operate. The following table details our total capital commitments, unfunded capital commitments, and our ownership percentage in each fund at March 31, 2021: (Dollars in thousands) SVBFG Capital Commitments SVBFG Unfunded SVBFG Ownership CP II, LP (1) $ 1,200 $ 162 5.1 % Capital Preferred Return Fund, LP 12,688 — 20.0 Growth Partners, LP 24,670 1,340 33.0 Strategic Investors Fund, LP 15,300 688 12.6 Strategic Investors Fund II, LP 15,000 1,050 8.6 Strategic Investors Fund III, LP 15,000 1,275 5.9 Strategic Investors Fund IV, LP 12,239 2,325 5.0 Strategic Investors Fund V funds 515 131 Various Other venture capital and private equity fund investments (equity method accounting) 21,843 2,795 Various Debt funds (equity method accounting) 58,733 211 Various Other fund investments (2) 277,515 10,118 Various Total $ 454,703 $ 20,095 (1) Our ownership includes direct ownership of 1.3 percent and indirect ownership interest of 3.8 percent through our investment in Strategic Investors Fund II, LP. (2) Represents commitments to 167 funds (primarily venture capital funds) where our ownership interest is generally less than five percent of the voting interests of each such fund. The following table details the amounts of remaining unfunded commitments to venture capital and private equity funds by our consolidated managed funds of funds (including our interest and the noncontrolling interests) at March 31, 2021: (Dollars in thousands) Unfunded Commitments Strategic Investors Fund, LP $ 196 Capital Preferred Return Fund, LP 1,519 Growth Partners, LP 2,518 Total $ 4,233

Income Taxes

Income Taxes	3 Months Ended
Income Taxes	Mar. 31, 2021
Income Tax Disclosure [Abstract]
Income Taxes	Income Taxes We are subject to income tax and non-income based taxes by the U.S. federal tax authorities as well as various state and foreign tax authorities. We have identified the U.S. federal and California state jurisdictions as major tax filings. Our U.S. federal tax returns remain open to full examination for 2017 and subsequent tax years. Our California tax returns remain open to full examination for 2016 and subsequent tax years. At March 31, 2021, our unrecognized tax benefit was $19.7 million, the recognition of which would reduce our income tax expense by $15.6 million. We do not expect that our unrecognized tax benefit will materially change in the next 12 months. We recognize interest and penalties related to income tax matters as part of income before income taxes. Interest and penalties were not material for the three months ended March 31, 2021.

Fair Value of Financial Instrum

Fair Value of Financial Instruments	3 Months Ended
Fair Value of Financial Instruments	Mar. 31, 2021
Fair Value Disclosures [Abstract]
Fair Value of Financial Instruments	Fair Value of Financial Instruments Fair Value Measurements Our available-for-sale securities, derivative instruments and certain non-marketable and other equity securities are financial instruments recorded at fair value on a recurring basis. We make estimates regarding valuation of assets and liabilities measured at fair value in preparing our interim consolidated financial statements. Fair value is defined as the price that would be received to sell an asset or paid to transfer a liability (the “exit price”) in an orderly transaction between market participants at the measurement date. There is a three-level hierarchy for disclosure of assets and liabilities recorded at fair value. The classification of assets and liabilities within the hierarchy is based on whether the inputs to the valuation methodology used for measurement are observable or unobservable and on the significance of those inputs in the fair value measurement. Observable inputs reflect market-derived or market-based information obtained from independent sources, while unobservable inputs reflect our estimates about market data and views of market participants. The three levels for measuring fair value are based on the reliability of inputs and are as follows: Level 1 Fair value measurements based on quoted prices in active markets for identical assets or liabilities that we have the ability to access. Since valuations are based on quoted prices that are readily and regularly available in an active market, valuation of these instruments does not entail a significant degree of judgment. Assets utilizing Level 1 inputs include U.S. Treasury securities, foreign government debt securities, exchange-traded equity securities and certain marketable securities accounted for under fair value accounting. Level 2 Fair value measurements based on quoted prices in markets that are not active or for which all significant inputs are observable, directly or indirectly. Valuations for the available-for-sale securities are provided by independent pricing service providers who have experience in valuing these securities and by comparison to and/or average of quoted market prices obtained from independent brokers. We perform a monthly analysis on the values received from third parties to ensure that the prices represent a reasonable estimate of the fair value. The procedures include, but are not limited to, initial and ongoing review of third-party pricing methodologies, review of pricing trends and monitoring of trading volumes. Additional corroboration, such as obtaining a non-binding price from a broker, may be obtained depending on the frequency of trades of the security and the level of liquidity or depth of the market. We ensure prices received from independent brokers represent a reasonable estimate of the fair value through the use of observable market inputs including comparable trades, yield curve, spreads and, when available, market indices. As a result of this analysis, if the Company determines that there is a more appropriate fair value based upon the available market data, the price received from the third party is adjusted accordingly. Below is a summary of the significant inputs used for each class of Level 2 assets and liabilities: U.S. agency debentures: Fair value measurements of U.S. agency debentures are based on the characteristics specific to bonds held, such as issuer name, issuance date, coupon rate, maturity date and any applicable issuer call option features. Valuations are based on market spreads relative to similar term benchmark market interest rates, generally U.S. Treasury securities. Agency-issued mortgage-backed securities: Agency-issued mortgage-backed securities are pools of individual conventional mortgage loans underwritten to U.S. agency standards with similar coupon rates, tenor, and other attributes such as geographic location, loan size and origination vintage. Fair value measurements of these securities are based on observable price adjustments relative to benchmark market interest rates taking into consideration estimated loan prepayment speeds. Agency-issued collateralized mortgage obligations: Agency-issued collateralized mortgage obligations are structured into classes or tranches with defined cash flow characteristics and are collateralized by U.S. agency-issued mortgage pass-through securities. Fair value measurements of these securities incorporate similar characteristics of mortgage pass-through securities such as coupon rate, tenor, geographic location, loan size and origination vintage, in addition to incorporating the effect of estimated prepayment speeds on the cash flow structure of the class or tranche. These measurements incorporate observable market spreads over an estimated average life after considering the inputs listed above. Agency-issued commercial mortgage-backed securities: Fair value measurements of these securities are based on spreads to benchmark market interest rates (usually U.S. Treasury rates or rates observable in the swaps market), prepayment speeds, loan default rate assumptions and loan loss severity assumptions on underlying loans. Foreign exchange forward and option contract assets and liabilities: Fair value measurements of these assets and liabilities are priced based on spot and forward foreign currency rates and option volatility assumptions. Interest rate derivative and interest rate swap assets and liabilities: Fair value measurements of interest rate derivatives and interest rate swaps are priced considering the coupon rate of the fixed leg of the contract and the variable coupon rate on the floating leg of the contract. Valuation is based on both spot and forward rates on the swap yield curve and the credit worthiness of the contract counterparty. Other equity securities: Fair value measurements of equity securities of public companies are priced based on quoted market prices less a discount if the securities are subject to certain sales restrictions. Certain sales restriction discounts generally range from 10 percent to 20 percent depending on the duration of the sale restrictions which typically range from three Equity warrant assets (public portfolio): Fair value measurements of equity warrant assets of publicly-traded portfolio companies are valued based on the Black-Scholes option pricing model. The model uses the price of publicly-traded companies (underlying stock price), stated strike prices, warrant expiration dates, the risk-free interest rate and market-observable option volatility assumptions. Level 3 The fair value measurement is derived from valuation techniques that use significant assumptions not observable in the market. These unobservable assumptions reflect our own estimates of assumptions we believe market participants would use in pricing the asset. The valuation techniques are consistent with the market approach, income approach and/or the cost approach used to measure fair value. Below is a summary of the valuation techniques used for each class of Level 3 assets: Venture capital and private equity fund investments not measured at net asset value: Fair value measurements are based on consideration of a range of factors including, but not limited to, the price at which the investment was acquired, the term and nature of the investment, local market conditions, values for comparable securities, and as it relates to the private company, the current and projected operating performance, exit strategies and financing transactions subsequent to the acquisition of the investment. The significant unobservable inputs used in the fair value measurement include the information about each portfolio company, including actual and forecasted results, cash position, recent or planned transactions and market comparable companies. Significant changes to any one of these inputs in isolation could result in a significant change in the fair value measurement; however, we generally consider all factors available through ongoing communication with the portfolio companies and venture capital fund managers to determine whether there are changes to the portfolio company or the environment that indicate a change in the fair value measurement. Equity warrant assets (public portfolio): Fair value measurements of equity warrant assets of publicly-traded portfolio companies are valued based on the Black-Scholes option pricing model. The model uses the price of publicly-traded companies (underlying stock price), stated strike prices, warrant expiration dates, the risk-free interest rate and market-observable option volatility assumptions. Modeled asset values are further adjusted by applying a discount of up to 20 percent for certain warrants that have certain sales restrictions or other features that indicate a discount to fair value is warranted. As sale restrictions are lifted, discounts are adjusted downward to zero once all restrictions expire or are removed. Equity warrant assets (private portfolio): Fair value measurements of equity warrant assets of private portfolio companies are priced based on a Black-Scholes option pricing model to estimate the asset value by using stated strike prices, option expiration dates, risk-free interest rates and option volatility assumptions. Option volatility assumptions used in the Black-Scholes model are based on public market indices whose members operate in similar industries as companies in our private company portfolio. Option expiration dates are modified to account for estimates to actual life relative to stated expiration. Overall model asset values are further adjusted for a general lack of liquidity due to the private nature of the associated underlying company. There is a direct correlation between changes in the volatility and remaining life assumptions in isolation and the fair value measurement while there is an inverse correlation between changes in the liquidity discount assumption and the fair value measurement. The following fair value hierarchy table presents information about our assets and liabilities that are measured at fair value on a recurring basis as of March 31, 2021: (Dollars in thousands) Level 1 Level 2 Level 3 Balance at March 31, 2021 Assets: Available-for-sale securities: U.S. Treasury securities $ 4,438,396 $ — $ — $ 4,438,396 U.S. agency debentures — 226,095 — 226,095 Foreign government debt securities 23,450 — — 23,450 Residential mortgage-backed securities: Agency-issued mortgage-backed securities — 12,514,911 — 12,514,911 Agency-issued collateralized mortgage obligations — fixed rate — 7,256,626 — 7,256,626 Agency-issued commercial mortgage-backed securities — 1,526,993 — 1,526,993 Total available-for-sale securities 4,461,846 21,524,625 — 25,986,471 Non-marketable and other equity securities (fair value accounting): Non-marketable securities: Venture capital and private equity fund investments measured at net asset value — — — 274,424 Other equity securities in public companies 38,253 122,557 — 160,810 Total non-marketable and other equity securities (fair value accounting) 38,253 122,557 — 435,234 Other assets: Foreign exchange forward and option contracts — 240,183 — 240,183 Equity warrant assets — 10,952 233,382 244,334 Client interest rate derivatives — 65,123 — 65,123 Total assets $ 4,500,099 $ 21,963,440 $ 233,382 $ 26,971,345 Liabilities: Foreign exchange forward and option contracts $ — $ 202,532 $ — $ 202,532 Client interest rate derivatives — 68,954 — 68,954 Total liabilities $ — $ 271,486 $ — $ 271,486 The following fair value hierarchy table presents information about our assets and liabilities that are measured at fair value on a recurring basis as of December 31, 2020: (Dollars in thousands) Level 1 Level 2 Level 3 Balance at December 31, 2020 Assets: Available-for-sale securities: U.S. Treasury securities $ 4,469,728 $ — $ — $ 4,469,728 U.S. agency debentures — 237,307 — 237,307 Foreign government debt securities 24,492 — — 24,492 Residential mortgage-backed securities: Agency-issued mortgage-backed securities — 13,503,681 — 13,503,681 Agency-issued collateralized mortgage obligations—fixed rate — 8,106,564 — 8,106,564 Agency-issued commercial mortgage-backed securities — 4,570,666 — 4,570,666 Total available-for-sale securities 4,494,220 26,418,218 — 30,912,438 Non-marketable and other equity securities (fair value accounting): Non-marketable securities: Venture capital and private equity fund investments measured at net asset value — — — 273,823 Other equity securities in public companies 43,344 237,460 — 280,804 Total non-marketable and other equity securities (fair value accounting) 43,344 237,460 — 554,627 Other assets: Foreign exchange forward and option contracts — 216,977 — 216,977 Equity warrant assets — 11,221 192,217 203,438 Client interest rate derivatives — 67,854 — 67,854 Total assets $ 4,537,564 $ 26,951,730 $ 192,217 $ 31,955,334 Liabilities: Foreign exchange forward and option contracts $ — $ 210,833 $ — $ 210,833 Client interest rate derivatives — 26,646 — 26,646 Total liabilities $ — $ 237,479 $ — $ 237,479 The following table presents additional information about Level 3 assets measured at fair value on a recurring basis for the three months ended March 31, 2021 and 2020: (Dollars in thousands) Beginning Balance Total Net Gains Included in Net Income Purchases Sales/Exits Issuances Other (3) Transfers Out of Level 3 Ending Balance Three months ended March 31, 2021 Other assets: Equity warrant assets (1) $ 192,217 $ 219,827 $ — $ (181,413) $ 6,565 $ (39) $ (3,775) $ 233,382 Total assets $ 192,217 $ 219,827 $ — $ (181,413) $ 6,565 $ (39) $ (3,775) $ 233,382 Three months ended March 31, 2020 Non-marketable and other equity securities (fair value accounting): Venture capital and private equity fund investments not measured at net asset value (2) $ 134 $ 5 $ — $ (5) $ — $ — $ — $ 134 Other assets: Equity warrant assets (1) 161,038 14,601 — (30,034) 4,519 — (266) 149,858 Total assets $ 161,172 $ 14,606 $ — $ (30,039) $ 4,519 $ — $ (266) $ 149,992 (1) Realized and unrealized gains (losses) are recorded in the line item “Gains on equity warrant assets, net," a component of noninterest income. (2) Realized and unrealized gains (losses) are recorded in the line item “Gains on investment securities, net," a component of noninterest income. (3) Foreign currency translation gains (losses) recorded in line item "Foreign currency translation gains (losses)", a component of other comprehensive income. The following table presents the amount of net unrealized gains and losses included in earnings attributable to Level 3 assets still held at March 31, 2021 and 2020: Three months ended March 31, (Dollars in thousands) 2021 2020 Other assets: Equity warrant assets (1) $ 60,639 $ (4,145) Total unrealized gains (losses), net $ 60,639 $ (4,145) (1) Unrealized gains (losses) are recorded in the line item “Gains on equity warrant assets, net, " a component of noninterest income. The extent to which any unrealized gains or losses will become realized is subject to a variety of factors, including, among other things, the expiration of current sales restrictions to which these securities are subject, the actual sales of securities and the timing of such actual sales. The following table presents quantitative information about the significant unobservable inputs used for certain of our Level 3 fair value measurements at March 31, 2021 and December 31, 2020. We have not included in this table our venture capital and private equity fund investments (fair value accounting) as we use net asset value per share (as obtained from the general partners of the investments) as a practical expedient to determine fair value. (Dollars in thousands) Fair value Valuation Technique Significant Unobservable Inputs Input Range Weighted March 31, 2021: Equity warrant assets (public portfolio) 28 Black-Scholes option pricing model Volatility 47.4% 47.4 % Risk-Free interest rate 0.9- 1.6 1.1 Sales restrictions discount (2) 10.0 10.0 Equity warrant assets (private portfolio) 233,354 Black-Scholes option pricing model Volatility 25.0 - 58.0 45.7 Risk-Free interest rate 0.01 - 1.17 0.3 Marketability discount (3) 21.7 21.7 Remaining life assumption (4) 40.0 40.0 December 31, 2020: Equity warrant assets (public portfolio) 1,036 Black-Scholes option pricing model Volatility 46.0% - 56.8% 49.1 % Risk-Free interest rate 0.3- 0.9 0.6 Sales restrictions discount (2) 10.0 - 20.0 10.2 Equity warrant assets (private portfolio) 191,181 Black-Scholes option pricing model Volatility 24.4 - 56.8 43.2 Risk-Free interest rate 0.01 - 0.52 0.1 Marketability discount (3) 20.63 20.6 Remaining life assumption (4) 40.0 40.0 (1) In determining the fair value of our venture capital and private equity fund investment portfolio (not measured at net asset value), we evaluate a variety of factors related to each underlying private portfolio company including, but not limited to, actual and forecasted results, cash position, recent or planned transactions and market comparable companies. Additionally, we have ongoing communication with the portfolio companies and venture capital fund managers, to determine whether there is a material change in fair value. We use company provided valuation reports, if available, to support our valuation assumptions. These factors are specific to each portfolio company and a weighted average or range of values of the unobservable inputs is not meaningful. (2) We adjust quoted market prices of public companies, which are subject to certain sales restrictions. Sales restriction discounts generally range from 10 percent to 20 percent depending on the duration of the sales restrictions, which typically range from three (3) Our marketability discount is applied to all private company warrants to account for a general lack of liquidity due to the private nature of the associated underlying company. The quantitative measure used is based upon various option-pricing models. On a quarterly basis, a sensitivity analysis is performed on our marketability discount. (4) We adjust the contractual remaining term of private company warrants based on our estimate of the actual remaining life, which we determine by utilizing historical data on terminations and exercises. At March 31, 2021, the weighted average contractual remaining term was 6.6 years, compared to our estimated remaining life of 2.6 years. On a quarterly basis, a sensitivity analysis is performed on our remaining life assumption. For the three months ended March 31, 2021 and 2020, we did not have any transfers between Level 3 and Level 1. All transfers from Level 3 to Level 2 for the three months ended March 31, 2021 and 2020 were due to the transfer of equity warrant assets from our private portfolio to our public portfolio (see our Level 3 reconciliation above). Financial Instruments not Carried at Fair Value FASB guidance over financial instruments requires that we disclose estimated fair values for our financial instruments not carried at fair value. The following fair value hierarchy table presents the estimated fair values of our financial instruments that are not carried at fair value at March 31, 2021 and December 31, 2020: Estimated Fair Value (Dollars in thousands) Carrying Amount Total Level 1 Level 2 Level 3 March 31, 2021: Financial assets: Cash and cash equivalents $ 21,254,859 $ 21,254,859 $ 21,254,859 $ — $ — Held-to-maturity securities 41,164,620 41,186,735 — 41,186,735 — Non-marketable securities not measured at net asset value 379,224 379,224 — — 379,224 Non-marketable securities measured at net asset value 426,306 426,306 — — — Net commercial loans 42,264,653 43,438,142 — — 43,438,142 Net consumer loans 5,018,762 5,158,216 — — 5,158,216 FHLB and Federal Reserve Bank stock 83,355 83,355 — — 83,355 Financial liabilities: Short-term borrowings 38,434 38,434 — 38,434 — Non-maturity deposits (1) 123,454,403 123,454,403 123,454,403 — — Time deposits 695,703 394,574 — 394,574 — 3.50% Senior Notes 348,441 378,242 — 378,242 — 3.125% Senior Notes 495,387 521,205 — 521,205 — 1.80% Senior Notes 494,355 463,625 — 463,625 — Off-balance sheet financial assets: Commitments to extend credit — 39,003 — — 39,003 December 31, 2020: Financial assets: Cash and cash equivalents $ 17,674,763 $ 17,674,763 $ 17,674,763 $ — $ — Held-to-maturity securities 16,592,153 17,216,871 — 17,216,871 — Non-marketable securities not measured at net asset value 240,761 240,761 — — 240,761 Non-marketable securities measured at net asset value 390,658 390,658 — — — Net commercial loans 39,886,296 40,412,490 — — 40,412,490 Net consumer loans 4,847,427 4,911,451 — — 4,911,451 FHLB and Federal Reserve Bank stock 61,232 61,232 — — 61,232 Financial liabilities: Short-term borrowings 20,553 20,553 — 20,553 — Non-maturity deposits (1) 101,293,346 101,293,346 101,293,346 — — Time deposits 688,461 501,853 — 501,853 — 3.50% Senior Notes 348,348 382,855 — 382,855 — 3.125% Senior Notes 495,280 563,840 — 563,840 — Off-balance sheet financial assets: Commitments to extend credit — 36,672 — — 36,672 (1) Includes noninterest-bearing demand deposits, interest-bearing checking accounts, money market accounts and interest-bearing sweep deposits. Investments in Entities that Calculate Net Asset Value Per Share FASB guidance over certain fund investments requires that we disclose the fair value of funds, significant investment strategies of the investees, redemption features of the investees, restrictions on the ability to sell investments, estimate of the period of time over which the underlying assets are expected to be liquidated by the investee, and unfunded commitments related to the investments. Our investments in debt funds and venture capital and private equity fund investments generally cannot be redeemed. Alternatively, we expect distributions, if any, to be received primarily through IPO and M&A activity of the underlying assets of the fund. Subject to applicable requirements under the Volcker Rule, we do not have any plans to sell any of these fund investments. If we decide to sell these investments in the future, the investee fund’s management must approve of the buyer before the sale of the investments can be completed. The fair values of the fund investments have been estimated using the net asset value per share of the investments, adjusted for any differences between our measurement date and the date of the fund investment’s net asset value by using the most recently available financial information from the investee general partner, for example December 31 st for our March 31 st consolidated financial statements, adjusted for any contributions paid, distributions received from the investment, and significant fund transactions or market events during the reporting period. The following table is a summary of the estimated fair values of these investments and remaining unfunded commitments for each major category of these investments as of March 31, 2021: (Dollars in thousands) Carrying Amount Fair Value Unfunded Commitments Non-marketable securities (fair value accounting): Venture capital and private equity fund investments (1) $ 274,424 $ 274,424 $ 19,030 Non-marketable securities (equity method accounting): Venture capital and private equity fund investments (2) 394,349 394,349 13,303 Debt funds (2) 5,813 5,813 211 Other investments (2) 26,144 26,144 886 Total $ 700,730 $ 700,730 $ 33,430 (1) Venture capital and private equity fund investments within non-marketable securities (fair value accounting) include investments made by our managed funds of funds and one of our direct venture funds (consolidated VIEs) and investments in venture capital and private equity fund investments (unconsolidated VIEs). Collectively, these investments in venture capital and private equity funds are primarily in U.S. and global technology and life science/healthcare companies. Included in the fair value and unfunded commitments of fund investments under fair value accounting are $70.8 million and $3.0 million, respectively, attributable to noncontrolling interests. It is estimated that we will receive distributions from the fund investments over the next 10 to 13 years, depending on the age of the funds and any potential extensions of terms of the funds. (2) Venture capital and private equity fund investments, debt funds, and other fund investments within non-marketable securities (equity method accounting) include funds that invest in or lend money to primarily U.S. and global technology and life science/healthcare companies. It is estimated that we will receive distributions from the funds over the next 5 to 8 years, depending on the age of the funds and any potential extensions of the terms of the funds.

Legal Matters

Legal Matters	3 Months Ended
Legal Matters	Mar. 31, 2021
Commitments and Contingencies Disclosure [Abstract]
Legal Matters	Legal Matters Certain lawsuits and claims arising in the ordinary course of business have been filed or are pending against us and/or our affiliates, and we may from time to time be involved in other legal or regulatory proceedings. In accordance with applicable accounting guidance, we establish accruals for all such matters, including expected settlements, when we believe it is probable that a loss has been incurred and the amount of the loss is reasonably estimable. When a loss contingency is not both probable and estimable, we do not establish an accrual. Any such loss estimates are inherently uncertain, based on currently available information and are subject to management’s judgment and various assumptions. Due to the inherent subjectivity of these estimates and unpredictability of outcomes of legal proceedings, any amounts accrued may not represent the ultimate resolution of such matters. To the extent we believe any potential loss relating to such matters may have a material impact on our liquidity, consolidated financial position, results of operations, and/or our business as a whole and is reasonably possible but not probable, we aim to disclose information relating to such potential loss. We also aim to disclose information relating to any material potential loss that is probable but not reasonably estimable. In such cases, where reasonably practicable, we aim to provide an estimate of loss or range of potential loss. No disclosures are generally made for any loss contingencies that are deemed to be remote. Based upon information available to us, our review of lawsuits and claims filed or pending against us to date and consultation with our outside legal counsel, we have not recognized a material accrual liability for any such matters, nor do we currently expect that these matters will result in a material liability to the Company. However, the outcome of litigation and other legal and regulatory matters is inherently uncertain, and it is possible that one or more of such matters currently pending or threatened could have an unanticipated material adverse effect on our liquidity, consolidated financial position, results of operations, and/or our business as a whole, in the future.

Related Parties

Related Parties	3 Months Ended
Related Parties	Mar. 31, 2021
Related Party Transactions [Abstract]
Related Parties	Related PartiesWe have no material related party transactions requiring disclosure. In the ordinary course of business, the Bank may extend credit to related parties, including executive officers, directors, principal shareholders and their related interests. Additionally, we provide real estate secured loans to eligible employees through our EHOP. For additional details, see Note 19 — “Employee Compensation and Benefit Plans" under Part II, Item 8 of our 2020 Form 10-K.

Subsequent Events

Subsequent Events	3 Months Ended
Subsequent Events	Mar. 31, 2021
Subsequent Events [Abstract]
Subsequent Events	Subsequent Events Common Stock On April 14, 2021, we issued and sold an additional 300,000 shares of common stock under the full exercise of the underwriter's over-allotment option resulting in additional net proceeds of approximately $146.0 million after deducting discounts and commissions. With the addition of the full exercise of the underwriters’ over-allotment option, the total gross proceeds from the offering were $1.15 billion before underwriting discounts and commissions and offering expenses. Pending Acquisition of Boston Private On May 4, 2021, Boston Private Financial Holdings, Inc. (“Boston Private”) announced that based on proxies submitted to the independent inspector of election for the special meeting of shareholders held on May 4, 2021, preliminary voting results indicate that Boston Private shareholders have approved each of the proposals presented at the special meeting, including the company’s merger agreement with SVB Financial, pursuant to which Boston Private will merge with and into SVB Financial. The preliminary voting results are subject to certification by First Coast Results, Inc., the independent inspector of election. The merger is expected to close in mid-2021, subject to the satisfaction of customary closing conditions, including receipt of customary regulatory approvals.

Basis of Presentation (Policies

Basis of Presentation (Policies)	3 Months Ended
Basis of Presentation (Policies)	Mar. 31, 2021
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Basis of Presentation	SVB Financial Group is a diversified financial services company, as well as a bank holding company and a financial holding company. SVB Financial was incorporated in the state of Delaware in March 1999. Through our various subsidiaries and divisions, we offer a diverse set of banking and financial products and services to support our clients of all sizes and stages throughout their life cycles. In these notes to our unaudited interim consolidated financial statements, when we refer to “SVB Financial Group,” “SVBFG," the “Company,” “we,” “our,” “us” or use similar words, we mean SVB Financial Group and all of its subsidiaries collectively, including Silicon Valley Bank (the “Bank”), unless the context requires otherwise. When we refer to “SVB Financial” or the “Parent” we are referring only to the parent company, SVB Financial Group (not including subsidiaries).The accompanying unaudited interim consolidated financial statements reflect all adjustments of a normal and recurring nature that are, in the opinion of management, necessary to fairly present our financial position, results of operations and cash flows in accordance with GAAP. Such unaudited interim consolidated financial statements have been prepared in accordance with the instructions to Form 10-Q pursuant to the rules and regulations of the SEC. Certain information and footnote disclosures normally included in financial statements prepared in accordance with GAAP have been condensed or omitted pursuant to such rules and regulations. The results of operations for the three months ended March 31, 2021 are not necessarily indicative of results to be expected for any future periods. These unaudited interim consolidated financial statements should be read in conjunction with our Annual Report on Form 10-K for the year ended December 31, 2020 (“2020 Form 10-K”).
Use of Estimates	The preparation of unaudited interim consolidated financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities, the disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the reporting period. Actual results could differ from those estimates. Estimates may change as new information is obtained. Significant items that are subject to such estimates include: 1) measurements of fair value, the valuation of non-marketable and other equity securities and the valuation of equity warrant assets, 2) income taxes, and 3) the adequacy of the allowance for credit losses for loans and for unfunded credit commitments.
Principles of Consolidation and Presentation	Our unaudited interim consolidated financial statements include the accounts of SVB Financial Group and consolidated entities. We consolidate voting entities in which we have control through voting interests or entities through which we have a controlling financial interest in a variable interest entity (“VIE”). We determine whether we have a controlling financial interest in a VIE by determining if we have: (a) the power to direct the activities of the VIE that most significantly impact the entity’s economic performance, (b) the obligation to absorb the expected losses or (c) the right to receive the expected returns of the entity. Generally, we have significant variable interests if our commitments to a limited partnership investment represent a significant amount of the total commitments to the entity. We also evaluate the impact of related parties on our determination of variable interests in our consolidation conclusions. We consolidate VIEs in which we are the primary beneficiary based on a controlling financial interest. If we are not the primary beneficiary of a VIE, we record our pro-rata interests based on our ownership percentage. VIEs are entities where investors lack sufficient equity at risk for the entity to finance its activities without additional subordinated financial support or equity investors, as a group, lack one of the following characteristics: (a) the power to direct the activities that most significantly impact the entity’s economic performance, (b) the obligation to absorb the expected losses of the entity or (c) the right to receive the expected returns of the entity. We assess VIEs to determine if we are the primary beneficiary of a VIE. A primary beneficiary is defined as a variable interest holder that has a controlling financial interest. A controlling financial interest requires both: (a) the power to direct the activities that most significantly impact the VIE’s economic performance and (b) obligation to absorb losses or receive benefits of a VIE that could potentially be significant to a VIE. Under this analysis, we also evaluate kick-out rights and other participating rights, which could provide us a controlling financial interest. The primary beneficiary of a VIE is required to consolidate the VIE. We also evaluate fees paid to managers of our limited partnership investments. We exclude those fee arrangements that are not deemed to be variable interests from the analysis of our interests in our investments in VIEs and the determination of a primary beneficiary, if any. Fee arrangements based on terms that are customary and commensurate with the services provided are deemed not to be variable interests and are, therefore, excluded.
Reclassifications	Certain prior period amounts primarily related to presentation changes to our table summarizing the activity relating to our allowance for credit losses for loans, have been reclassified to conform to current period presentation.
Adoption of New Accounting Standards and Recent Accounting Pronouncements	In December 2019, the FASB issued Accounting Standards Update No. 2019-12, Income Taxes (Topic 740): Simplifying the Accounting for Income Taxes (ASU 2019-12), which is part of the FASB’s initiative to reduce cost and complexity related to accounting for income taxes. ASU 2019-12 eliminates certain exceptions to the general principles of ASC 740, Income Taxes, and simplifies income tax accounting in several areas. We adopted the guidance on January 1, 2021, on a modified retrospective basis. The adoption did not have a material impact on our financial position, results of operations, cash flows or disclosures.

Stockholders' Equity and EPS (T

Stockholders' Equity and EPS (Tables)	3 Months Ended
Stockholders' Equity and EPS (Tables)	Mar. 31, 2021
Equity and Earnings Per Share [Abstract]
Reclassification out of Accumulated Other Comprehensive Income	The following table summarizes the items reclassified out of accumulated other comprehensive income into the Consolidated Statements of Income (unaudited) for the three months ended March 31, 2021 and 2020: Three months ended March 31, (Dollars in thousands) Income Statement Location 2021 2020 Reclassification adjustment for gains on available-for-sale securities included in net income Gains on investment securities, net $ — $ (61,165) Related tax expense Income tax expense — 16,953 Reclassification adjustment for gains on cash flow hedges included in net income Net interest income (15,657) (2,089) Related tax expense Income tax expense 4,352 579 Total reclassification adjustment for gains included in net income, net of tax $ (11,305) $ (45,722)
Schedule of Cash Flow Hedges Included in Accumulated Other Comprehensive Income (Loss)	The table below summarizes the activity relating to net gains and losses on our cash flow hedges included in accumulated other comprehensive income for the three months ended March 31, 2021 and 2020. Refer to Note 10 — “Derivative Financial Instruments” for additional information regarding the termination of our cash flow hedges during the quarter ended March 31, 2020. Over the next 12 months, we expect that approximately $62.5 million in accumulated other comprehensive income ("AOCI") at March 31, 2021, related to unrealized gains will be reclassified out of AOCI and recognized in net income. Three months ended March 31, (Dollars in thousands) 2021 2020 Balance, beginning of period, net of tax $ 129,273 $ (2,130) Net increase in fair value, net of tax — 167,639 Net realized gain reclassified to net income, net of tax (11,305) (1,510) Balance, end of period, net of tax $ 117,968 $ 163,999
Reconciliation of Basic EPS to Diluted EPS	The following is a reconciliation of basic EPS to diluted EPS for the three months ended March 31, 2021 and 2020: Three months ended March 31, (Dollars and shares in thousands, except per share amounts) 2021 2020 Numerator: Net income available to common stockholders $ 532,220 $ 132,253 Denominator: Weighted average common shares outstanding—basic 52,180 51,565 Weighted average effect of dilutive securities: Stock options and ESPP 294 217 Restricted stock units and awards 602 162 Weighted average common shares outstanding—diluted 53,076 51,944 Earnings per common share: Basic $ 10.20 $ 2.56 Diluted 10.03 2.55
Schedule of Antidilutive Securities Excluded from Computation of Earnings per Share	The following table summarizes the weighted-average common shares excluded from the diluted EPS calculation due to the antidilutive effect for the three months ended March 31, 2021 and 2020: Three months ended March 31, (Shares in thousands) 2021 2020 Stock options — 206 Restricted stock units 18 119 Total 18 325
Schedule of Stock by Class	The following table summarizes our preferred stock at March 31, 2021: Series Description Amount outstanding (in millions) Carrying value Shares issued and outstanding Par Value Ownership interest per depositary share Liquidation preference per depositary share 2021 dividends paid per depositary share Series A 5.250% Fixed-Rate Non-Cumulative Perpetual Preferred Stock $ 350 $ 340.1 350,000 $ 0.001 1/40 th $ 25 $ 0.33 Series B 4.100% Fixed-Rate Non-Cumulative Perpetual Preferred Stock 750 739.2 7,500 0.001 1/100 th 1,000 —

Share-Based Compensation (Table

Share-Based Compensation (Tables)	3 Months Ended
Share-Based Compensation (Tables)	Mar. 31, 2021
Share-based Payment Arrangement [Abstract]
Share-based Compensation and Related Benefits	For the three months ended March 31, 2021 and 2020, we recorded share-based compensation and related tax benefits as follows: Three months ended March 31, (Dollars in thousands) 2021 2020 Share-based compensation expense $ 26,691 $ 19,171 Income tax benefit related to share-based compensation expense (6,278) (4,440)
Unrecognized Share-based Compensation Expense	As of March 31, 2021, unrecognized share-based compensation expense was as follows: (Dollars in thousands) Unrecognized Weighted Average Expected Stock options $ 12,059 2.26 Restricted stock units and awards 127,759 2.65 Total unrecognized share-based compensation expense $ 139,818
Stock Option Information Related to Equity Incentive Plan	The table below provides stock option information related to the 2006 Equity Incentive Plan for the three months ended March 31, 2021: Options Weighted Weighted Average Remaining Contractual Life - in Years Aggregate Outstanding at December 31, 2020 559,001 $ 191.29 Exercised (83,516) 136.14 Forfeited (604) 254.35 Outstanding at March 31, 2021 474,881 200.91 4.17 $ 139,021,519 Vested and expected to vest at March 31, 2021 457,920 200.35 4.12 134,311,416 Exercisable at March 31, 2021 193,079 166.23 2.58 63,219,304
Information for Restricted Stock Units under Equity Incentive Plan	The table below provides information for restricted stock units and awards under the 2006 Equity Incentive Plan for the three months ended March 31, 2021: Shares Weighted Average Grant Date Fair Value Nonvested at December 31, 2020 995,049 $ 227.12 Granted 57,323 499.90 Vested (73,716) 256.76 Forfeited (17,579) 263.28 Nonvested at March 31, 2021 961,077 240.46

Variable Interest Entities (Tab

Variable Interest Entities (Tables)	3 Months Ended
Variable Interest Entities (Tables)	Mar. 31, 2021
Investments In Variable Interest Entities [Abstract]
Schedule of Variable Interest Entities	The following table presents the carrying amounts and classification of significant variable interests in consolidated and unconsolidated VIEs as of March 31, 2021 and December 31, 2020: (Dollars in thousands) Consolidated VIEs Unconsolidated VIEs Maximum Exposure to Loss in Unconsolidated VIEs March 31, 2021: Assets: Cash and cash equivalents $ 11,392 $ — $ — Non-marketable and other equity securities (1) 450,537 867,187 867,187 Accrued interest receivable and other assets 13,094 — — Total assets $ 475,023 $ 867,187 $ 867,187 Liabilities: Other liabilities (1) 11,041 372,516 — Total liabilities $ 11,041 $ 372,516 $ — December 31, 2020: Assets: Cash and cash equivalents $ 14,859 $ — $ — Non-marketable and other equity securities (1) 422,049 858,617 858,617 Accrued interest receivable and other assets 937 — — Total assets $ 437,845 $ 858,617 $ 858,617 Liabilities: Other liabilities (1) 1,410 370,208 — Total liabilities $ 1,410 $ 370,208 $ — (1) Included in our unconsolidated non-marketable and other equity securities portfolio at March 31, 2021 and December 31, 2020 are investments in qualified affordable housing projects of $617.0 million and $616.2 million, respectively, and related other liabilities consisting of unfunded commitments of $372.5 million and $370.2 million, respectively.

Cash and Cash Equivalents (Tabl

Cash and Cash Equivalents (Tables)	3 Months Ended
Cash and Cash Equivalents (Tables)	Mar. 31, 2021
Cash and Cash Equivalents [Abstract]
Schedule of Cash and Cash Equivalents	The following table details our cash and cash equivalents at March 31, 2021 and December 31, 2020: (Dollars in thousands) March 31, 2021 December 31, 2020 Cash and due from banks (1) $ 20,966,421 $ 17,447,916 Securities purchased under agreements to resell (2) 288,438 226,847 Total cash and cash equivalents $ 21,254,859 $ 17,674,763 (1) At March 31, 2021 and December 31, 2020, $16.6 billion and $13.7 billion, respectively, of our cash and due from banks was deposited at the Federal Reserve Bank and was earning interest at the Federal Funds target rate, and interest-earning deposits in other financial institutions were $3.4 billion and $3.0 billion, respectively. (2) At March 31, 2021 and December 31, 2020, securities purchased und er agreements to resell were collateralized by U.S. Treasury securities and U.S. agency securities with aggregate fair value s of $294.5 million a n d $232.2 million, respectively. None of these securities were sold or repledged as of March 31, 2021 and December 31, 2020.

Investment Securities (Tables)

Investment Securities (Tables)	3 Months Ended
Investment Securities (Tables)	Mar. 31, 2021
Investments, Debt and Equity Securities [Abstract]
Components of Available-for-Sale Securities Portfolio	The major components of our available-for-sale investment securities portfolio at March 31, 2021 and December 31, 2020 are as follows: March 31, 2021 (Dollars in thousands) Amortized Unrealized Unrealized Carrying Available-for-sale securities, at fair value: U.S. Treasury securities $ 4,244,175 $ 195,444 $ (1,223) $ 4,438,396 U.S. agency debentures 230,375 1,155 (5,435) 226,095 Foreign government debt securities 23,454 — (4) 23,450 Residential mortgage-backed securities: Agency-issued mortgage-backed securities 12,663,089 85,210 (233,388) 12,514,911 Agency-issued collateralized mortgage obligations—fixed rate 7,471,566 19,567 (234,507) 7,256,626 Agency-issued commercial mortgage-backed securities 1,526,502 24,283 (23,792) 1,526,993 Total available-for-sale securities $ 26,159,161 $ 325,659 $ (498,349) $ 25,986,471 December 31, 2020 (Dollars in thousands) Amortized Unrealized Unrealized Carrying Available-for-sale securities, at fair value: U.S. Treasury securities $ 4,197,858 $ 271,977 $ (107) $ 4,469,728 U.S. agency debentures 233,727 4,165 (585) 237,307 Foreign government debt securities 24,491 1 — 24,492 Residential mortgage-backed securities: Agency-issued mortgage-backed securities 13,271,482 232,850 (651) 13,503,681 Agency-issued collateralized mortgage obligations—fixed rate 8,076,832 40,010 (10,278) 8,106,564 Agency-issued commercial mortgage-backed securities 4,440,506 133,527 (3,367) 4,570,666 Total available-for-sale securities $ 30,244,896 $ 682,530 $ (14,988) $ 30,912,438
Activity of Available-for-Sale Securities	The following table summarizes sale activity of available-for-sale securities during the three months ended March 31, 2021 and 2020 as recorded in the line item “Gains on investment securities, net," a component of noninterest income: Three months ended March 31, (Dollars in thousands) 2021 2020 Sales proceeds $ — $ 2,654,212 Net realized gains and losses: Gross realized gains — 61,165 Gross realized losses — — Net realized gains $ — $ 61,165
Summary of Unrealized Losses on Available for Sale Securities	The following tables summarize our available-for-sale securities in an unrealized loss position for which an allowance for credit losses has not been recorded and summarized into categories of less than 12 months, or 12 months or longer, as of March 31, 2021 and December 31, 2020: March 31, 2021 Less than 12 months 12 months or longer (1) Total (Dollars in thousands) Fair Value of Unrealized Fair Value of Unrealized Fair Value of Unrealized Available-for-sale securities: U.S. Treasury securities $ 301,607 $ (1,223) $ — $ — $ 301,607 $ (1,223) U.S. agency debentures 128,228 (5,435) — — 128,228 (5,435) Foreign government debt securities 23,450 (4) — — 23,450 (4) Residential mortgage-backed securities: Agency-issued mortgage-backed securities 9,608,598 (233,388) — — 9,608,598 (233,388) Agency-issued collateralized mortgage obligations—fixed rate 5,248,844 (234,507) — — 5,248,844 (234,507) Agency-issued commercial mortgage-backed securities 751,263 (23,792) — — 751,263 (23,792) Total available-for-sale securities (1) $ 16,061,990 $ (498,349) $ — $ — $ 16,061,990 $ (498,349) (1) As of March 31, 2021, we identified a total of 400 investments that were in unrealized loss positions with no investments in an unrealized loss position for a period of time greater than 12 months. Based on our analysis of the securities in an unrealized loss position as of March 31, 2021, the decline in value is unrelated to credit loss and is related to changes in market interest rates since purchase and therefore changes in value for securities are included in other comprehensive income. Market valuations and credit loss analyses on assets in the available-for-sale securities portfolio are reviewed and monitored on a quarterly basis. As of March 31, 2021, we do not intend to sell any of our securities in an unrealized loss position prior to recovery of our amortized cost basis, and it is more likely than not that we will not be required to sell any of our securities prior to recovery of our amortized cost basis. None of the investments in our available-for-sale securities portfolio were past due as of March 31, 2021. December 31, 2020 Less than 12 months 12 months or longer (1) Total (Dollars in thousands) Fair Value of Unrealized Fair Value of Unrealized Fair Value of Unrealized Available-for-sale securities: U.S. Treasury securities $ 59,929 $ (107) $ — $ — $ 59,929 $ (107) U.S. agency debentures 133,143 (585) — — 133,143 (585) Residential mortgage-backed securities: Agency-issued mortgage-backed securities 903,767 (651) — — 903,767 (651) Agency-issued collateralized mortgage obligations—fixed rate 2,199,207 (10,278) — — 2,199,207 (10,278) Agency-issued commercial mortgage-backed securities 989,389 (3,367) — — 989,389 (3,367) Total available-for-sale securities (1) $ 4,285,435 $ (14,988) $ — $ — $ 4,285,435 $ (14,988) (1) As of December 31, 2020, we identified a total of 93 investments that were in unrealized loss positions, of which no investments are in an unrealized loss position for a period of time greater than 12 months. None of the investments in our available-for-sale securities portfolio were past due as of December 31, 2020.
Summary of Remaining Contractual Principal Maturities and Fully Taxable Equivalent Yields on Securities	The following table summarizes the fixed income securities, carried at fair value, classified as available-for-sale as of March 31, 2021 by the remaining contractual principal maturities. For U.S. Treasury securities, U.S. agency debentures and foreign government debt securities, the expected maturity is the actual contractual maturity of the notes. Expected maturities for mortgage-backed securities may differ significantly from their contractual maturities because mortgage borrowers have the right to prepay outstanding loan obligations with or without penalties. Mortgage-backed securities classified as available-for-sale typically have original contractual maturities from 10 to 30 years whereas expected average lives of these securities tend to be significantly shorter and vary based upon structure and prepayments in lower interest rate environments. March 31, 2021 (Dollars in thousands) Total One Year After One After Five After U.S. Treasury securities $ 4,438,396 $ 40,481 $ 3,844,128 $ 553,787 $ — U.S. agency debentures 226,095 — — 226,095 — Foreign government debt securities 23,450 23,450 — — — Residential mortgage-backed securities: Agency-issued mortgage-backed securities 12,514,911 — — — 12,514,911 Agency-issued collateralized mortgage obligations—fixed rate 7,256,626 — — — 7,256,626 Agency-issued commercial mortgage-backed securities 1,526,993 — — 1,526,993 — Total $ 25,986,471 $ 63,931 $ 3,844,128 $ 2,306,875 $ 19,771,537 The following table summarizes the remaining contractual principal maturities on fixed income investment securities classified as held-to-maturity as of March 31, 2021. For U.S. agency debentures, the expected maturity is the actual contractual maturity of the notes. Expected remaining maturities for certain U.S. agency debentures may occur earlier than their contractual maturities because the note issuers have the right to call outstanding amounts ahead of their contractual maturity. Expected maturities for mortgage-backed securities may differ significantly from their contractual maturities because mortgage borrowers have the right to prepay outstanding loan obligations with or without penalties. Mortgage-backed securities classified as held-to-maturity typically have original contractual maturities from 10 to 30 years whereas expected average lives of these securities tend to be significantly shorter and vary based upon structure and prepayments in lower interest rate environments. March 31, 2021 Total One Year After One Year to After Five Years to After (Dollars in thousands) Amortized Cost Fair Value Amortized Cost Fair Value Amortized Cost Fair Value Amortized Cost Fair Value Amortized Cost Fair Value U.S. agency debentures $ 404,571 $ 416,189 $ 4,066 $ 4,117 $ 141,117 $ 145,321 $ 259,388 $ 266,751 $ — $ — Residential mortgage-backed securities: Agency-issued mortgage-backed securities 23,525,681 23,414,311 6,319 6,564 11,663 11,983 494,951 510,743 23,012,748 22,885,021 Agency-issued collateralized mortgage obligations — fixed rate 2,425,024 2,443,238 — — 5,356 5,482 447,781 458,314 1,971,887 1,979,442 Agency-issued collateralized mortgage obligations — variable rate 128,370 129,037 — — — — — — 128,370 129,037 Agency-issued commercial mortgage-backed securities 10,075,165 10,070,499 — — — — 536,203 542,183 9,538,962 9,528,316 Municipal bonds and notes 4,555,237 4,662,221 48,536 49,209 130,482 136,075 756,078 795,055 3,620,141 3,681,882 Corporate bonds 51,684 51,240 — — — — 51,684 51,240 — — Total $ 41,165,732 $ 41,186,735 $ 58,921 $ 59,890 $ 288,618 $ 298,861 $ 2,546,085 $ 2,624,286 $ 38,272,108 $ 38,203,698
Held-to-maturity Securities	The components of our held-to-maturity investment securities portfolio at March 31, 2021 and December 31, 2020 are as follows: March 31, 2021 (Dollars in thousands) Amortized Unrealized Unrealized Fair Value Allowance for Credit Losses Held-to-maturity securities, at cost: U.S. agency debentures (1) $ 404,571 $ 11,618 $ — $ 416,189 $ — Residential mortgage-backed securities: Agency-issued mortgage-backed securities 23,525,681 184,691 (296,061) 23,414,311 — Agency-issued collateralized mortgage obligations —fixed rate 2,425,024 23,807 (5,593) 2,443,238 — Agency-issued collateralized mortgage obligations—variable rate 128,370 667 — 129,037 — Agency-issued commercial mortgage-backed securities 10,075,165 81,135 (85,801) 10,070,499 — Municipal bonds and notes 4,555,237 150,919 (43,935) 4,662,221 531 Corporate bonds 51,684 — (444) 51,240 581 Total held-to-maturity securities $ 41,165,732 $ 452,837 $ (431,834) $ 41,186,735 $ 1,112 (1) Consists of pools of Small Business Investment Company debentures issued and guaranteed by the U.S. Small Business Administration, an independent agency of the United States. December 31, 2020 (Dollars in thousands) Amortized Unrealized Unrealized Fair Value Allowance for Credit Losses Held-to-maturity securities, at amortized cost: U.S. agency debentures (1) $ 402,265 $ 18,961 $ — $ 421,226 $ — Residential mortgage-backed securities: Agency-issued mortgage-backed securities 7,739,763 240,121 (2,211) 7,977,673 — Agency-issued collateralized mortgage obligations—fixed rate 1,735,451 23,227 (296) 1,758,382 — Agency-issued collateralized mortgage obligations—variable rate 136,913 317 — 137,230 — Agency-issued commercial mortgage-backed securities 2,942,959 123,846 — 3,066,805 — Municipal bonds and notes 3,635,194 220,866 (505) 3,855,555 392 Total held-to-maturity securities $ 16,592,545 $ 627,338 $ (3,012) $ 17,216,871 $ 392 (1) Consists of pools of Small Business Investment Company debentures issued and guaranteed by the U.S. Small Business Administration, an independent agency of the United States.
Debt Securities, Held-to-maturity, Allowance for Credit Loss	The following table summarizes the activity relating to our allowance for credit losses for HTM securities for the three months ended March 31, 2021 and 2020: Three months ended March 31, 2021 Beginning Balance December 31, 2020 Provision for Credit Losses Ending Balance March 31, 2021 (Dollars in thousands) Municipal bonds and notes $ 392 $ 139 $ 531 Corporate bonds — 581 581 Total allowance for credit losses $ 392 $ 720 $ 1,112 Three months ended March 31, 2020 Beginning Balance December 31, 2019 Day One Impact of Adopting ASC 326 Provision for Credit Losses Ending Balance March 31, 2020 (Dollars in thousands) Municipal bonds and notes $ — $ 174 $ 56 $ 230 Total allowance for credit losses $ — $ 174 $ 56 $ 230 Accrued interest receivable ("AIR") from HTM securities totaled
Debt Securities, Held-to-maturity, Credit Quality Indicator	On a quarterly basis, management monitors the credit quality for HTM securities through the use of standard credit ratings. The following table summarizes our amortized cost of HTM securities aggregated by credit quality indicator at March 31, 2021 and December 31, 2020: (Dollars in thousands) March 31, 2021 December 31, 2020 Municipal bonds and notes: Aaa $ 2,519,992 $ 2,070,311 Aa1 1,329,903 1,144,500 Aa2 568,423 420,383 Aa3 124,724 — A1 12,195 — Total municipal bonds and notes $ 4,555,237 $ 3,635,194 Corporate bonds: Aa2 $ 27,583 $ — Aa3 24,101 — Total corporate bonds $ 51,684 $ —
Schedule of Nonmarketable and Other Securities	The major components of our non-marketable and other equity securities portfolio at March 31, 2021 and December 31, 2020 are as follows: (Dollars in thousands) March 31, 2021 December 31, 2020 Non-marketable and other equity securities: Non-marketable securities (fair value accounting): Consolidated venture capital and private equity fund investments (1) $ 96,016 $ 88,937 Unconsolidated venture capital and private equity fund investments (2) 178,407 184,886 Other investments without a readily determinable fair value (3) 200,367 60,975 Other equity securities in public companies (fair value accounting) (4) 160,810 280,804 Non-marketable securities (equity method accounting) (5): Venture capital and private equity fund investments 394,349 362,192 Debt funds 5,813 5,444 Other investments 205,002 202,809 Investments in qualified affordable housing projects, net (6) 616,997 616,188 Total non-marketable and other equity securities $ 1,857,761 $ 1,802,235 (1) The following table shows the amounts of venture capital and private equity fund investments held by the following consolidated funds and our ownership percentage of each fund at March 31, 2021 and December 31, 2020 (fair value accounting): March 31, 2021 December 31, 2020 (Dollars in thousands) Amount Ownership % Amount Ownership % Strategic Investors Fund, LP $ 5,165 12.6 % $ 4,850 12.6 % Capital Preferred Return Fund, LP 48,572 20.0 49,574 20.0 Growth Partners, LP 42,279 33.0 34,513 33.0 Total consolidated venture capital and private equity fund investments $ 96,016 $ 88,937 (2) The carrying value represents investments in 161 and 162 funds (primarily venture capital funds) at March 31, 2021 and December 31, 2020, respectively, where our ownership interest is typically less than 5% of the voting interests of each such fund and in which we do not have the ability to exercise significant influence over the partnerships operating activities and financial policies. We carry our unconsolidated venture capital and private equity fund investments at fair value based on the fund investments' net asset values per share as obtained from the general partners of the investments. For each fund investment, we adjust the net asset value per share for differences between our measurement date and the date of the fund investment’s net asset value by using the most recently available financial information from the investee general partner, for example December 31 st for our March 31 st consolidated financial statements, adjusted for any contributions paid, distributions received from the investment, and significant fund transactions or market events during the reporting period. (3) These investments include direct equity investments in private companies. The carrying value is based on the price at which the investment was acquired plus or minus changes resulting from observable price changes in orderly transactions for identical or similar investments. We consider a range of factors when adjusting the fair value of these investments, including, but not limited to, the term and nature of the investment, local market conditions, values for comparable securities, current and projected operating performance, exit strategies, financing transactions subsequent to the acquisition of the investment and a discount for certain investments that have lock-up restrictions or other features that indicate a discount to fair value is warranted. The following table shows the changes to the carrying amount of other investments without a readily determinable fair value for the three months ended March 31, 2021: (Dollars in thousands) Three months ended March 31, 2021 Cumulative Adjustments Measurement alternative: Carrying value at March 31, 2021 $ 200,367 Carrying value adjustments: Impairment $ — $ (947) Upward changes for observable prices 13,762 17,121 Downward changes for observable prices (456) (4,327) (4) Investments classified as other equity securities (fair value accounting) represent shares held in public companies as a result of exercising public equity warrant assets and direct equity investments in public companies held by our consolidated funds. Changes in equity securities measured at fair value are recognized through net income. (5) The following table shows the carrying value and our ownership percentage of each investment at March 31, 2021 and December 31, 2020 (equity method accounting): March 31, 2021 December 31, 2020 (Dollars in thousands) Amount Ownership % Amount Ownership % Venture capital and private equity fund investments: Strategic Investors Fund II, LP $ 4,624 8.6 % $ 3,705 8.6 % Strategic Investors Fund III, LP 21,281 5.9 16,110 5.9 Strategic Investors Fund IV, LP 29,681 5.0 25,169 5.0 Strategic Investors Fund V funds 60,992 Various 67,052 Various CP II, LP (i) 8,954 5.1 7,887 5.1 Other venture capital and private equity fund investments 268,817 Various 242,269 Various Total venture capital and private equity fund investments $ 394,349 $ 362,192 Debt funds: Gold Hill Capital 2008, LP (ii) $ 4,380 15.5 % $ 3,941 15.5 % Other debt funds 1,433 Various 1,503 Various Total debt funds $ 5,813 $ 5,444 Other investments: SPD Silicon Valley Bank Co., Ltd. $ 111,838 50.0 % $ 115,232 50.0 % Other investments 93,164 Various 87,577 Various Total other investments $ 205,002 $ 202,809 (i) Our ownership includes direct ownership interest of 1.3 percent and indirect ownership interest of 3.8 percent through our investments in Strategic Investors Fund II, LP. (ii) Our ownership includes direct ownership interest of 11.5 percent in the fund and an indirect interest in the fund through our investment in Gold Hill Capital 2008, LLC of 4.0 percent. (6) The following table presents the balances of our investments in qualified affordable housing projects and related unfunded commitments included as a component of “Other liabilities” on our consolidated balance sheets at March 31, 2021 and December 31, 2020: (Dollars in thousands) March 31, 2021 December 31, 2020 Investments in qualified affordable housing projects, net $ 616,997 $ 616,188 Other liabilities 372,516 370,208 The following table presents other information relating to our investments in qualified affordable housing projects for the three months ended March 31, 2021 and 2020: Three months ended March 31, (Dollars in thousands) 2021 2020 Tax credits and other tax benefits recognized $ 28,184 $ 11,759 Amortization expense included in provision for income taxes (i) 16,105 11,471 (i) All investments are amortized using the proportional amortization method and amortization expense is included in the provision for income taxes.
Gain Loss On Investment Securities	The following table presents the net gains and losses on non-marketable and other equity securities for the three months ended March 31, 2021 and 2020 as recorded in the line item “Gains on investment securities, net," a component of noninterest income: Three months ended March 31, (Dollars in thousands) 2021 2020 Net gains (losses) on non-marketable and other equity securities: Non-marketable securities (fair value accounting): Consolidated venture capital and private equity fund investments $ 17,211 $ 3,113 Unconsolidated venture capital and private equity fund investments 12,510 1,252 Other investments without a readily determinable fair value 13,769 (2,943) Other equity securities in public companies (fair value accounting) 77,561 (7,504) Non-marketable securities (equity method accounting): Venture capital and private equity fund investments 45,385 (8,046) Debt funds 414 (362) Other investments 228 (620) Total net gains (losses) on non-marketable and other equity securities $ 167,078 $ (15,110) Less: realized net gains (losses) on sales of non-marketable and other equity securities 69,775 (49) Net gains (losses) on non-marketable and other equity securities still held $ 97,303 $ (15,061)

Loans, Allowance for Loan Los_2

Loans, Allowance for Loan Losses and Allowance for Unfunded Credit Commitments (Tables)	3 Months Ended
	Mar. 31, 2021
Receivables [Abstract]
Loans and Allowance for Loan Losses	The composition of loans at amortized cost basis broken out by risk-based segment at March 31, 2021 and December 31, 2020 is presented in the following table: (Dollars in thousands) March 31, 2021 December 31, 2020 Global fund banking $ 27,306,926 $ 25,543,198 Investor dependent: Early stage 1,523,208 1,485,866 Mid stage 1,588,185 1,564,870 Later stage 2,055,676 1,921,082 Total investor dependent 5,167,069 4,971,818 Cash flow dependent: Sponsor led buyout 1,984,567 1,989,173 Other 2,959,609 2,945,360 Total cash flow dependent 4,944,176 4,934,533 Private bank (4) 5,063,827 4,901,056 Balance sheet dependent 2,501,524 2,191,023 Premium wine (4) 1,040,223 1,052,643 Other (4) 45,688 27,687 SBA loans 1,605,733 1,559,530 Total loans (1) (2) (3) $ 47,675,166 $ 45,181,488 Allowance for credit losses (391,751) (447,765) Net loans $ 47,283,415 $ 44,733,723 (1) Total loans at amortized cost is net of unearned income of $248 million and $226 million at March 31, 2021 and December 31, 2020, respectively. (2) Included within our total loan portfolio are credit card loans of $461 million and $400 million at March 31, 2021 and December 31, 2020, respectively. (3) Included within our total loan portfolio are construction loans of $108 million and $118 million at March 31, 2021 and December 31, 2020, respectively. (4) Of our total loans, the table below includes those secured by real estate at amortized cost at March 31, 2021 and December 31, 2020 and were comprised of the following: (Dollars in thousands) March 31, 2021 December 31, 2020 Real estate secured loans: Private bank: Loans for personal residence $ 3,538,077 $ 3,392,237 Loans to eligible employees 458,736 481,098 Home equity lines of credit 45,033 42,449 Other 145,995 142,895 Total private bank loans secured by real estate $ 4,187,841 $ 4,058,679 Premium wine 824,463 824,008 Other 50,584 56,882 Total real estate secured loans $ 5,062,888 $ 4,939,569
Composition of Loans, Net of Unearned Income, Broken Out by Portfolio Segment and Class of Financing Receivable	The following table summarizes the credit quality indicators, broken out by risk-based segment, as of March 31, 2021 and December 31, 2020: (Dollars in thousands) Pass Criticized Nonperforming (Nonaccrual) Total March 31, 2021: Global fund banking $ 27,292,491 $ 14,417 $ 18 $ 27,306,926 Investor dependent: Early stage 1,303,581 211,861 7,766 1,523,208 Mid stage 1,492,157 96,028 — 1,588,185 Later stage 1,922,215 106,058 27,403 2,055,676 Total investor dependent 4,717,953 413,947 35,169 5,167,069 Cash flow dependent: Sponsor led buyout 1,844,415 100,304 39,848 1,984,567 Other 2,680,114 273,867 5,628 2,959,609 Total cash flow dependent 4,524,529 374,171 45,476 4,944,176 Private bank 5,024,735 30,647 8,445 5,063,827 Balance sheet dependent 2,373,152 128,372 — 2,501,524 Premium wine 903,583 135,501 1,139 1,040,223 Other 45,653 35 — 45,688 SBA loans 1,466,605 139,128 — 1,605,733 Total loans $ 46,348,701 $ 1,236,218 $ 90,247 $ 47,675,166 December 31, 2020: Global fund banking $ 25,537,354 $ 5,833 $ 11 $ 25,543,198 Investor dependent Early stage 1,288,897 178,629 18,340 1,485,866 Mid stage 1,420,788 140,026 4,056 1,564,870 Later stage 1,744,662 147,763 28,657 1,921,082 Total investor dependent 4,454,347 466,418 51,053 4,971,818 Cash flow dependent Sponsor led buyout 1,795,972 153,205 39,996 1,989,173 Other 2,677,371 261,985 6,004 2,945,360 Total cash flow dependent 4,473,343 415,190 46,000 4,934,533 Private bank 4,862,176 32,728 6,152 4,901,056 Balance sheet dependent 2,104,645 86,378 — 2,191,023 Premium wine 910,397 141,248 998 1,052,643 Other 27,594 63 30 27,687 SBA loans 1,455,990 103,540 — 1,559,530 Total loans $ 43,825,846 $ 1,251,398 $ 104,244 $ 45,181,488
Credit Quality Indicators, Broken out by Portfolio Segment and Class of Financing Receivables	The following tables summarize the credit quality indicators, broken out by risk-based segment and vintage year, as of March 31, 2021 and December 31, 2020: Term Loans by Origination Year March 31, 2021 2021 2020 2019 2018 2017 Prior Revolving Loans Revolving Loans Converted to Term Loans Unallocated (1) Total Global fund banking: Risk rating: Pass $ 267,498 $ 263,243 $ 44,632 $ 59,520 $ 21,416 $ 7,773 $ 26,627,712 $ 697 $ — $ 27,292,491 Criticized 3 — — — — — 10,347 4,067 — 14,417 Nonperforming — — 8 — — — 10 — — 18 Total global fund banking $ 267,501 $ 263,243 $ 44,640 $ 59,520 $ 21,416 $ 7,773 $ 26,638,069 $ 4,764 $ — $ 27,306,926 Investor dependent: Early stage: Risk rating: Pass $ 197,867 $ 584,281 $ 296,776 $ 95,495 $ 16,114 $ 1,122 $ 111,366 $ 560 $ — $ 1,303,581 Criticized 5,120 82,312 68,639 23,896 6,174 1,792 23,928 — — 211,861 Nonperforming 211 454 3,037 3,124 — 940 — — 7,766 Total early stage $ 203,198 $ 667,047 $ 368,452 $ 122,515 $ 22,288 $ 2,914 $ 136,234 $ 560 $ — $ 1,523,208 Mid stage: Risk rating: Pass $ 253,799 $ 708,740 $ 253,486 $ 129,298 $ 19,909 $ 2,754 $ 121,676 $ 2,495 $ — $ 1,492,157 Criticized 4,510 43,314 18,015 10,773 3,745 4,998 10,673 — — 96,028 Nonperforming — — — — — — — — — — Total mid stage $ 258,309 $ 752,054 $ 271,501 $ 140,071 $ 23,654 $ 7,752 $ 132,349 $ 2,495 $ — $ 1,588,185 Later stage: Risk rating: Pass $ 262,703 $ 942,741 $ 338,516 $ 165,935 $ 14,016 $ 5,593 $ 187,725 $ 4,986 $ — $ 1,922,215 Criticized — 35,439 27,753 8,571 — 892 33,403 — — 106,058 Nonperforming — 15,997 1,676 3,280 — — 6,450 — — 27,403 Total later stage $ 262,703 $ 994,177 $ 367,945 $ 177,786 $ 14,016 $ 6,485 $ 227,578 $ 4,986 $ — $ 2,055,676 Total investor dependent $ 724,210 $ 2,413,278 $ 1,007,898 $ 440,372 $ 59,958 $ 17,151 $ 496,161 $ 8,041 $ — $ 5,167,069 Cash flow dependent: Sponsor led buyout: Risk rating: Pass $ 310,562 $ 643,432 $ 406,962 $ 242,303 $ 147,618 $ 36,269 $ 57,269 $ — $ — $ 1,844,415 Criticized — 551 30,534 39,028 10,515 13,129 6,547 — — 100,304 Nonperforming — 32 11,838 15,998 7,158 — 4,822 — — 39,848 Total sponsor led buyout $ 310,562 $ 644,015 $ 449,334 $ 297,329 $ 165,291 $ 49,398 $ 68,638 $ — $ — $ 1,984,567 Other Risk rating: Pass $ 454,225 $ 791,748 $ 343,877 $ 158,992 $ 111,051 $ 1,946 $ 818,275 $ — $ — $ 2,680,114 Criticized 1 16,065 60,474 67,074 3,957 — 126,296 — — 273,867 Nonperforming — — — 4,418 — — 1,210 — — 5,628 Total other $ 454,226 $ 807,813 $ 404,351 $ 230,484 $ 115,008 $ 1,946 $ 945,781 $ — $ — $ 2,959,609 Total cash flow dependent $ 764,788 $ 1,451,828 $ 853,685 $ 527,813 $ 280,299 $ 51,344 $ 1,014,419 $ — $ — $ 4,944,176 Private bank: Risk rating: Pass $ 412,282 $ 1,821,765 $ 1,064,886 $ 364,246 $ 319,602 $ 646,021 $ 395,302 $ 631 $ — $ 5,024,735 Criticized — 3,179 8,398 3,513 3,211 9,442 2,904 — — 30,647 Nonperforming — — — 6,079 — 1,657 709 — — 8,445 Total private bank $ 412,282 $ 1,824,944 $ 1,073,284 $ 373,838 $ 322,813 $ 657,120 $ 398,915 $ 631 $ — $ 5,063,827 Balance sheet dependent: Risk rating: Pass $ 263,600 $ 832,914 $ 155,424 $ 181,241 $ 33,922 $ — $ 904,547 $ 1,504 $ — $ 2,373,152 Criticized 69 58,519 42,391 — — — 27,393 — — 128,372 Nonperforming — — — — — — — — — — Total balance sheet dependent $ 263,669 $ 891,433 $ 197,815 $ 181,241 $ 33,922 $ — $ 931,940 $ 1,504 $ — $ 2,501,524 Premium wine: Risk rating: Pass $ 20,393 $ 129,671 $ 193,793 $ 87,586 $ 77,877 $ 225,080 $ 133,185 $ 35,998 $ — $ 903,583 Criticized 1,634 13,288 22,856 16,069 10,207 47,518 23,929 — — 135,501 Nonperforming — 42 — — — 998 99 — — 1,139 Total Premium wine $ 22,027 $ 143,001 $ 216,649 $ 103,655 $ 88,084 $ 273,596 $ 157,213 $ 35,998 $ — $ 1,040,223 Other: Risk rating: Pass $ 21 $ 10,792 $ 19,179 $ 16,642 $ 1,478 $ 1 $ 13,031 $ — $ (15,491) $ 45,653 Criticized — — — — — — 35 — — 35 Nonperforming — — — — — — — — — — Total other $ 21 $ 10,792 $ 19,179 $ 16,642 $ 1,478 $ 1 $ 13,066 $ — $ (15,491) $ 45,688 SBA loans: Risk rating: Pass $ 385,899 $ 1,080,706 $ — $ — $ — $ — $ — $ — $ — $ 1,466,605 Criticized 49,353 89,775 — — — — — — — 139,128 Nonperforming — — — — — — — — — — Total SBA loans $ 435,252 $ 1,170,481 $ — $ — $ — $ — $ — $ — $ — $ 1,605,733 Total loans $ 2,889,750 $ 8,169,000 $ 3,413,150 $ 1,703,081 $ 807,970 $ 1,006,985 $ 29,649,783 $ 50,938 $ (15,491) $ 47,675,166 (1) These amounts consist of fees and clearing items that have not yet been allocated at the loan level. Term Loans by Origination Year December 31, 2020 2020 2019 2018 2017 2016 Prior Revolving Loans Revolving Loans Converted to Term Loans Total Global fund banking: Risk rating: Pass $ 439,494 $ 48,297 $ 68,491 $ 22,878 $ 2,389 $ 5,999 $ 24,947,428 $ 2,378 $ 25,537,354 Criticized — — — — — — 410 5,423 5,833 Nonperforming 3 8 — — — — — — 11 Total global fund banking $ 439,497 $ 48,305 $ 68,491 $ 22,878 $ 2,389 $ 5,999 $ 24,947,838 $ 7,801 $ 25,543,198 Investor dependent: Early stage: Risk rating: Pass $ 667,006 $ 370,189 $ 120,920 $ 32,163 $ 1,234 $ 405 $ 96,363 $ 617 $ 1,288,897 Criticized 46,889 72,495 26,170 10,204 3,557 334 18,980 — 178,629 Nonperforming 2,438 9,354 5,368 441 — — 739 — 18,340 Total early stage $ 716,333 $ 452,038 $ 152,458 $ 42,808 $ 4,791 $ 739 $ 116,082 $ 617 $ 1,485,866 Mid stage: Risk rating: Pass $ 840,431 $ 301,905 $ 145,588 $ 22,834 $ 5,086 $ 1,026 $ 101,423 $ 2,495 $ 1,420,788 Criticized 43,288 48,294 26,023 8,242 — 4,998 9,181 — 140,026 Nonperforming 10 614 218 2,539 — 675 — — 4,056 Total mid stage $ 883,729 $ 350,813 $ 171,829 $ 33,615 $ 5,086 $ 6,699 $ 110,604 $ 2,495 $ 1,564,870 Later stage: Risk rating: Pass $ 905,468 $ 393,584 $ 170,128 $ 37,967 $ 11 $ 8,087 $ 224,432 $ 4,985 $ 1,744,662 Criticized 22,286 55,254 30,252 1,142 — 1,547 37,282 — 147,763 Nonperforming 16,691 1,797 3,522 — — — 6,647 — 28,657 Total later stage $ 944,445 $ 450,635 $ 203,902 $ 39,109 $ 11 $ 9,634 $ 268,361 $ 4,985 $ 1,921,082 Total investor dependent $ 2,544,507 $ 1,253,486 $ 528,189 $ 115,532 $ 9,888 $ 17,072 $ 495,047 $ 8,097 $ 4,971,818 Cash flow dependent: Sponsor led buyout: Risk rating: Pass $ 791,480 $ 451,561 $ 273,719 $ 166,820 $ 36,900 $ — $ 75,492 $ — $ 1,795,972 Criticized 500 70,324 39,020 21,607 13,003 — 8,751 — 153,205 Nonperforming 33 11,869 16,068 7,177 — — 4,849 — 39,996 Total sponsor led buyout $ 792,013 $ 533,754 $ 328,807 $ 195,604 $ 49,903 $ — $ 89,092 $ — $ 1,989,173 Other Risk rating: Pass $ 879,542 $ 513,242 $ 179,169 $ 133,235 $ 38,808 $ 101 $ 933,274 $ — $ 2,677,371 Criticized 19,246 67,854 33,779 4,477 — — 136,629 — 261,985 Nonperforming — — 4,552 — — — 1,452 — 6,004 Total other $ 898,788 $ 581,096 $ 217,500 $ 137,712 $ 38,808 $ 101 $ 1,071,355 $ — $ 2,945,360 Total cash flow dependent $ 1,690,801 $ 1,114,850 $ 546,307 $ 333,316 $ 88,711 $ 101 $ 1,160,447 $ — $ 4,934,533 Private bank: Risk rating: Pass $ 1,878,184 $ 1,152,903 $ 394,351 $ 352,857 $ 294,870 $ 405,909 $ 382,442 $ 660 $ 4,862,176 Criticized 3,480 9,985 4,486 1,202 5,101 7,725 749 — 32,728 Nonperforming — 563 3,197 — — 1,679 713 — 6,152 Total private bank $ 1,881,664 $ 1,163,451 $ 402,034 $ 354,059 $ 299,971 $ 415,313 $ 383,904 $ 660 $ 4,901,056 Balance sheet dependent: Risk rating: Pass $ 837,613 $ 190,140 $ 198,532 $ 19,213 $ — $ — $ 857,642 $ 1,505 $ 2,104,645 Criticized 55,887 3,733 171 — — — 26,587 — 86,378 Nonperforming — — — — — — — — — Total balance sheet dependent $ 893,500 $ 193,873 $ 198,703 $ 19,213 $ — $ — $ 884,229 $ 1,505 $ 2,191,023 Premium wine: Risk rating: Pass $ 126,476 $ 193,744 $ 70,783 $ 79,088 $ 114,812 $ 153,841 $ 135,461 $ 36,192 $ 910,397 Criticized 17,882 24,286 35,737 10,300 13,559 5,766 33,718 — 141,248 Nonperforming — — — — 998 — — — 998 Total Premium wine $ 144,358 $ 218,030 $ 106,520 $ 89,388 $ 129,369 $ 159,607 $ 169,179 $ 36,192 $ 1,052,643 Other: Risk rating: Pass $ — $ 16,251 $ 10,910 $ — $ — $ 433 $ — $ — $ 27,594 Criticized 3 — — — — — 60 — 63 Nonperforming — 30 — — — — — — 30 Total other $ 3 $ 16,281 $ 10,910 $ — $ — $ 433 $ 60 $ — $ 27,687 SBA loans: Risk rating: Pass $ 1,455,990 $ — $ — $ — $ — $ — $ — $ — $ 1,455,990 Criticized 103,540 — — — — — — — 103,540 Nonperforming — — — — — — — — — Total SBA loans $ 1,559,530 $ — $ — $ — $ — $ — $ — $ — $ 1,559,530 Total loans $ 9,153,860 $ 4,008,276 $ 1,861,154 $ 934,386 $ 530,328 $ 598,525 $ 28,040,704 $ 54,255 $ 45,181,488
Activity in Allowance for Loan Losses Broken out by Portfolio Segment	The following tables summarize the activity relating to our allowance for credit losses for loans for the three months ended March 31, 2021 and 2020, broken out by portfolio segment: Three months ended March 31, 2021 Beginning Balance December 31, 2020 Charge-offs Recoveries Provision (Reduction) for Credit Losses Foreign Currency Translation Adjustments Ending Balance March 31, 2021 (Dollars in thousands) Global fund banking $ 45,584 $ (79,912) $ — $ 94,329 $ — $ 60,001 Investor dependent: Early stage 86,674 (14,123) 838 (11,121) (21) 62,247 Growth stage 126,683 (120) 3,693 (25,546) (24) 104,686 Total investor dependent 213,357 (14,243) 4,531 (36,667) (45) 166,933 Cash flow and balance sheet dependent 124,249 — — (12,758) 2 111,493 Private bank 53,629 — 2 (8,567) — 45,064 Premium wine and other 9,036 (850) 320 (401) 155 8,260 SBA loans 1,910 — — (1,910) — — Total allowance for credit losses $ 447,765 $ (95,005) $ 4,853 $ 34,026 $ 112 $ 391,751 Three months ended March 31, 2020 Beginning Balance December 31, 2019 Impact of adopting ASC 326 Charge-offs Recoveries Provision (Reduction) for Credit Losses Foreign Currency Translation Adjustments Ending Balance March 31, 2020 (Dollars in thousands) Global fund banking $ 107,285 $ (69,888) $ — $ — $ 19,557 $ (180) $ 56,774 Investor dependent: Early stage 26,245 39,911 (10,183) 1,573 70,214 (571) 127,189 Growth stage 56,125 31,713 (23,316) 3,337 81,183 (530) 148,512 Total investor dependent 82,370 71,624 (33,499) 4,910 151,397 (1,101) 275,701 Cash flow and balance sheet dependent 80,820 (1,269) (2,624) 2,845 25,301 (331) 104,742 Private bank 21,551 12,615 (581) — 54,490 (280) 87,795 Premium wine and other 12,898 12,382 (192) — (1,844) 707 23,951 Total allowance for credit losses $ 304,924 $ 25,464 $ (36,896) $ 7,755 $ 248,901 $ (1,185) $ 548,963 The following table summarizes the activity relating to our allowance for credit losses for unfunded credit commitments for the three months ended March 31, 2021 and 2020: Three months ended March 31, (Dollars in thousands) 2021 2020 Allowance for credit losses: unfunded credit commitments, beginning balance $ 120,796 $ 67,656 Impact of adopting ASC 326 — 22,826 Reduction of credit losses (16,067) (5,477) Foreign currency translation adjustments 21 (315) Allowance for credit losses: unfunded credit commitments, ending balance (1) $ 104,750 $ 84,690 (1) The “allowance for credit losses: unfunded credit commitments” is included as a component of “other liabilities” on our unaudited interim consolidated balance sheets. See Note 14 — “Off-Balance Sheet Arrangements, Guarantees and Other Commitments” of this report for additional disclosures related to our commitments to extend credit.
Financing Receivable, Past Due	The following table summarizes the aging of our loans broken out by risk-based segment as of March 31, 2021 and December 31, 2020: (Dollars in thousands) 30 - 59 60 - 89 Equal to or Greater Total Past Current Total Loans Past Due March 31, 2021: Global fund banking $ 10,002 $ 3 $ 4,106 $ 14,111 $ 27,292,815 $ 27,306,926 $ 4,088 Investor dependent: Early stage 6,270 643 500 7,413 1,515,795 1,523,208 9 Mid stage 8,127 155 — 8,282 1,579,903 1,588,185 — Later stage 3,272 — — 3,272 2,052,404 2,055,676 — Total investor dependent 17,669 798 500 18,967 5,148,102 5,167,069 9 Cash flow dependent: Sponsor led buyout — — — — 1,984,567 1,984,567 — Other 3,839 69 485 4,393 2,955,216 2,959,609 — Total cash flow dependent 3,839 69 485 4,393 4,939,783 4,944,176 — Private bank — 1,973 — 1,973 5,061,854 5,063,827 — Balance sheet dependent 6,962 62 — 7,024 2,494,500 2,501,524 — Premium wine — — 998 998 1,039,225 1,040,223 — Other 1 — — 1 45,687 45,688 — SBA loans 117 174 394 685 1,605,048 1,605,733 394 Total loans $ 38,590 $ 3,079 $ 6,483 $ 48,152 $ 47,627,014 $ 47,675,166 $ 4,491 December 31, 2020: Global fund banking $ 27,606 $ 8 $ 11 $ 27,625 $ 25,515,573 $ 25,543,198 $ — Investor dependent: Early stage 6,320 1,840 202 8,362 1,477,504 1,485,866 — Mid stage 5,984 238 907 7,129 1,557,741 1,564,870 — Later stage 5,363 — — 5,363 1,915,719 1,921,082 — Total investor dependent 17,667 2,078 1,109 20,854 4,950,964 4,971,818 — Cash flow dependent Sponsor led buyout 34 — — 34 1,989,139 1,989,173 — Other 6,510 58 — 6,568 2,938,792 2,945,360 — Total cash flow dependent 6,544 58 — 6,602 4,927,931 4,934,533 — Private bank 4,292 3,990 — 8,282 4,892,774 4,901,056 — Balance sheet dependent 987 1,089 — 2,076 2,188,947 2,191,023 — Premium wine 3,168 — 998 4,166 1,048,477 1,052,643 — Other 3 28 82 113 27,574 27,687 — SBA loans — — — — 1,559,530 1,559,530 — Total loans $ 60,267 $ 7,251 $ 2,200 $ 69,718 $ 45,111,770 $ 45,181,488 $ —
Financing Receivable, Nonaccrual	The following table summarizes our nonaccrual loans with no allowance for credit loss at March 31, 2021 and December 31, 2020: March 31, 2021 December 31, 2020 (Dollars in thousands) Nonaccrual Loans Nonaccrual Loans with no Allowance for Credit Loss Nonaccrual Loans Nonaccrual Loans with no Allowance for Credit Loss Global fund banking $ 18 $ 8 $ 11 $ 11 Investor dependent: Early stage 7,766 376 18,340 3 Mid stage — — 4,056 3,159 Later stage 27,403 6,437 28,657 118 Total investor dependent 35,169 6,813 51,053 3,280 Cash flow dependent: Sponsor led buyout 39,848 — 39,996 — Other 5,628 572 6,004 1,138 Total cash flow dependent 45,476 572 46,000 1,138 Private bank 8,445 2,365 6,152 2,393 Balance sheet dependent — — — — Premium wine 1,139 997 998 998 Other — — 30 30 SBA loans — — — — Total nonaccrual loans $ 90,247 $ 10,755 $ 104,244 $ 7,850
Summary of Loans Modified in Troubled Debt Restructurings ("TDRs") by Risk-based Segment	The following table summarizes our loans modified in TDRs, broken out by risk-based segment, at March 31, 2021 and December 31, 2020: (Dollars in thousands) March 31, 2021 December 31, 2020 Loans modified in TDRs: Global fund banking $ — $ — Investor dependent: Early stage 2,322 6,705 Mid stage — 4,050 Later stage 20,953 24,896 Total investor dependent 23,275 35,651 Cash flow dependent: Sponsor led buyout 39,897 21,529 Other 4,903 1,237 Total cash flow dependent 44,800 22,766 Private bank 2,079 — Balance sheet dependent — — Premium wine 2,631 2,661 Other — — SBA loans — — Total loans modified in TDRs $ 72,785 $ 61,078
Recorded Investment in Loans Modified in TDRs	The following table summarizes the recorded investment in loans modified in TDRs, broken out by risk-based segment, for modifications made during the three months ended March 31, 2021 and 2020: Three months ended March 31, (Dollars in thousands) 2021 2020 Loans modified in TDRs during the period: Global fund banking $ — $ — Investor dependent: Early stage — — Mid stage — 5,955 Later stage — 2,769 Total investor dependent — 8,724 Cash flow dependent: Sponsor led buyout 18,439 — Other 3,734 — Total cash flow dependent 22,173 — Private bank 2,079 — Balance sheet dependent — — Premium wine — — Other — — SBA loans — — Total loans modified in TDRs during the period (1) $ 24,252 $ 8,724 (1) There were $1.8 million and $12.5 million of partial charge-offs for the three months ended March 31, 2021 and 2020, respectively.
Troubled Debt Restructurings On Financing Receivables Subsequently Defaulted Table	The following table summarizes the recorded investment in loans modified in TDRs within the previous 12 months that subsequently defaulted during the three months ended March 31, 2021 and 2020: Three months ended March 31, (Dollars in thousands) 2021 2020 TDRs modified within the previous 12 months that defaulted during the period: Global fund banking $ — $ — Investor dependent: Early stage — — Mid stage — — Later stage — — Total investor dependent — — Cash flow dependent: Sponsor led buyout — — Other 3,734 — Total cash flow dependent 3,734 — Private bank — — Balance sheet dependent — — Premium wine — 8,247 Other — — SBA loans — — Total TDRs modified within the previous 12 months that defaulted in the period $ 3,734 $ 8,247

Goodwill and Other Intangible_2

Goodwill and Other Intangible Assets (Tables)	3 Months Ended
Goodwill and Other Intangible Assets (Tables)	Mar. 31, 2021
Goodwill and Intangible Assets Disclosure [Abstract]
Schedule of Finite-Lived Intangible Assets Acquired as Part of Business Combination	The components of net other intangible assets were as follows: March 31, 2021 December 31, 2020 (Dollars in thousands) Gross Amount Accumulated Amortization Net Carrying Amount Gross Amount Accumulated Amortization Net Carrying Amount Other intangible assets: Customer relationships $ 42,000 $ 8,591 $ 33,409 $ 42,000 $ 7,636 $ 34,364 Other 36,300 10,384 25,916 36,300 9,229 27,071 Total other intangible assets $ 78,300 $ 18,975 $ 59,325 $ 78,300 $ 16,865 $ 61,435
Finite-lived Intangible Assets Amortization Expense	For the three months ended March 31, 2021, we recorded amortization expense of $2.1 million. Assuming no future impairments of other intangible assets or additional acquisitions or dispositions, the following table presents the Company's future expected amortization expense for other intangible assets that will continue to be amortized as of March 31, 2021: Years ended December 31, Other 2021 (excluding the three months ended March 31, 2021) $ 6,107 2022 8,141 2023 8,141 2024 8,141 2025 6,900 2026 and thereafter 21,895 Total future amortization expense $ 59,325

Short-Term Borrowings and Lon_2

Short-Term Borrowings and Long-Term Debt (Tables)	3 Months Ended
Short-Term Borrowings and Long-Term Debt (Tables)	Mar. 31, 2021
Debt Disclosure [Abstract]
Outstanding Short Term Borrowings and Long Term Debt	The following table represents outstanding short-term borrowings and long-term debt at March 31, 2021 and December 31, 2020: Carrying Value (Dollars in thousands) Maturity Principal value at March 31, 2021 March 31, December 31, Short-term borrowings: Other short-term borrowings (1) $ 38,434 $ 38,434 $ 20,553 Total short-term borrowings $ 38,434 $ 20,553 Long-term debt: 3.50% Senior Notes January 29, 2025 $ 350,000 $ 348,441 $ 348,348 3.125% Senior Notes June 5, 2030 500,000 495,387 495,280 1.800% Senior Notes February 2, 2031 500,000 494,355 — Total long-term debt $ 1,338,183 $ 843,628 (1) Represents cash collateral received from certain counterparties in relation to market value exposures of derivative contracts in our favor.

Derivative Financial Instrume_2

Derivative Financial Instruments (Tables)	3 Months Ended
Derivative Financial Instruments (Tables)	Mar. 31, 2021
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Schedule of Derivative Instruments	The following table summarizes the amortized cost basis of hedged assets that are designated and qualify as fair value hedges and the cumulative amount of fair value hedging adjustments included in the carrying value that have been recorded on our consolidated balance sheets as of March 31, 2021: March 31, 2021 (Dollars in thousands) Amortized Cost Basis of the Hedged Assets Cumulative Amount of Fair Value Hedging Adjustment Included in the Carrying Amount of the Hedged Assets Available-for-sale securities (1) $ 21,312,139 $ (16,975) (1) These amounts include the amortized cost basis of closed portfolios used to designate hedging relationships in which the hedged item is the last layer expected to be remaining at the end of the hedging relationship. At March 31, 2021, the amortized cost basis of the closed portfolios used in these hedging relationships was $21.3 billion, the amounts of the designated hedged items was $10.0 billion and the cumulative basis adjustments associated with these hedging relationships was $17.0 million.
Total Notional or Contractual Amounts, Fair Value, Collateral and Net Exposure of Derivative Financial Instruments	The total notional or contractual amounts and fair value of our derivative financial instruments at March 31, 2021 and December 31, 2020 were as follows: March 31, 2021 December 31, 2020 Notional or Fair Value Notional or Fair Value (Dollars in thousands) Derivative Assets (1) Derivative Liabilities (1) Derivative Assets (1) Derivative Liabilities (1) Derivatives designated as hedging instruments: Interest rate risks: Interest rate swaps (2) $ 10,000,000 $ — $ — $ — $ — $ — Interest rate swaps — — — — — — Derivatives not designated as hedging instruments: Currency exchange risks: Foreign exchange forwards 687,576 19,109 — 68,381 306 — Foreign exchange forwards 97,950 — 2,626 566,988 — 20,566 Other derivative instruments: Equity warrant assets 299,101 244,334 — 253,153 203,438 — Client foreign exchange forwards 9,015,147 220,034 — 8,025,973 214,969 — Client foreign exchange forwards 8,675,502 — 198,866 7,490,723 — 188,565 Client foreign currency options 63,503 1,040 — 97,529 1,702 — Client foreign currency options 63,503 — 1,040 97,522 — 1,702 Client interest rate derivatives (2) 1,212,842 65,123 — 1,082,265 67,854 — Client interest rate derivatives (2) 1,381,626 — 68,954 1,250,975 — 26,646 Total derivatives not designated as hedging instruments 549,640 271,486 488,269 237,479 Total derivatives $ 549,640 $ 271,486 $ 488,269 $ 237,479 (1) Derivative assets and liabilities are included in "accrued interest receivable and other assets" and "other liabilities " , respectively, on our consolidated balance sheets. (2) The amount reported reflects reductions of approximately $22.7 million of derivative assets and $45.4 million of derivative liabilities at March 31, 2021 and December 31, 2020, respectively, reflecting variation margin treated as settlement of the related derivative fair values for legal and accounting purposes as required by central clearing houses.
Summary of Derivative Activity and Related Impact on Consolidated Statements of Income	A summary of our derivative activity and the related impact on our consolidated statements of income for the three months ended March 31, 2021 and 2020 is as follows: Three months ended March 31, (Dollars in thousands) Statement of income location 2021 2020 Derivatives designated as hedging instruments: Interest rate risks: Amounts reclassified from accumulated other comprehensive income into income Interest income - loans $ 15,657 $ 2,089 Change in fair value of interest rate swaps hedging investment securities Interest income - investment securities taxable 18,494 — Change in fair value of hedged investment securities Interest income - investment securities taxable (16,975) — Net gains associated with interest rate risk derivatives $ 17,176 $ 2,089 Derivatives not designated as hedging instruments: Currency exchange risks: Losses on revaluations of internal foreign currency instruments, net Other noninterest income $ (28,129) $ (8,375) Gains on internal foreign exchange forward contracts, net Other noninterest income 26,853 8,668 Net (losses) gains associated with internal currency risk $ (1,276) $ 293 Other derivative instruments: Losses on revaluations of client foreign currency instruments, net Other noninterest income $ (2,427) $ (8,284) Gains on client foreign exchange forward contracts, net Other noninterest income 2,751 7,747 Net gains (losses) associated with client currency risk $ 324 $ (537) Net gains on equity warrant assets Gains on equity warrant assets, net $ 221,685 $ 13,395 Net gains (losses) on other derivatives Other noninterest income $ 4,521 $ (4,345)
Offsetting Assets	The following table summarizes our assets subject to enforceable master netting arrangements as of March 31, 2021 and December 31, 2020: Gross Amounts of Recognized Assets Gross Amounts offset in the Statement of Financial Position Net Amounts of Assets Presented in the Statement of Financial Position Gross Amounts Not Offset in the Statement of Financial Position but Subject to Master Netting Arrangements Net Amount (Dollars in thousands) Financial Instruments Cash Collateral Received (1) March 31, 2021 Derivative assets: Foreign exchange forwards $ 239,143 $ — $ 239,143 $ (77,667) $ (38,286) $ 123,190 Foreign currency options 1,040 — 1,040 (413) (148) 479 Client interest rate derivatives 65,123 — 65,123 (65,123) — — Total derivative assets 305,306 — 305,306 (143,203) (38,434) 123,669 Reverse repurchase, securities borrowing, and similar arrangements 288,438 — 288,438 (288,438) — — Total $ 593,744 $ — $ 593,744 $ (431,641) $ (38,434) $ 123,669 December 31, 2020 Derivative assets: Foreign exchange forwards $ 215,275 $ — $ 215,275 $ (75,983) $ (20,550) $ 118,742 Foreign currency options 1,702 — 1,702 (1,045) (3) 654 Client interest rate derivatives 67,854 — 67,854 (67,854) — — Total derivative assets 284,831 — 284,831 (144,882) (20,553) 119,396 Reverse repurchase, securities borrowing, and similar arrangements 226,847 — 226,847 (226,847) — — Total $ 511,678 $ — $ 511,678 $ (371,729) $ (20,553) $ 119,396 (1) Cash collateral received from our counterparties in relation to market value exposures of derivative contracts in our favor is recorded as a component of “short-term borrowings” on our consolidated balance sheets.
Offsetting Liabilities	The following table summarizes our liabilities subject to enforceable master netting arrangements as of March 31, 2021 and December 31, 2020: Gross Amounts of Recognized Liabilities Gross Amounts offset in the Statement of Financial Position Net Amounts of Liabilities Presented in the Statement of Financial Position Gross Amounts Not Offset in the Statement of Financial Position but Subject to Master Netting Arrangements Net Amount (Dollars in thousands) Financial Instruments Cash Collateral Pledged (1) March 31, 2021 Derivative liabilities: Foreign exchange forwards $ 201,492 $ — $ 201,492 $ (61,303) $ (58,582) $ 81,607 Foreign currency options 1,040 — 1,040 (491) — 549 Client interest rate derivatives 68,954 — 68,954 (53,003) (15,570) 381 Total derivative liabilities 271,486 — 271,486 (114,797) (74,152) 82,537 Repurchase, securities lending, and similar arrangements — — — — — — Total $ 271,486 $ — $ 271,486 $ (114,797) $ (74,152) $ 82,537 December 31, 2020 Derivative liabilities: Foreign exchange forwards $ 209,131 $ — $ 209,131 $ (84,547) $ (45,367) $ 79,217 Foreign currency options 1,702 — 1,702 (645) (8) 1,049 Client interest rate derivatives 26,646 — 26,646 — (26,100) 546 Total derivative liabilities 237,479 — 237,479 (85,192) (71,475) 80,812 Repurchase, securities lending, and similar arrangements — — — — — — Total $ 237,479 $ — $ 237,479 $ (85,192) $ (71,475) $ 80,812 (1) Cash collateral pledged to our counterparties in relation to market value exposures of derivative contracts in a liability position and repurchase agreements are recorded as a component of “cash and cash equivalents " on our consolidated balance sheets.

Noninterest Income (Tables)

Noninterest Income (Tables)	3 Months Ended
Noninterest Income (Tables)	Mar. 31, 2021
Other Income and Expenses [Abstract]
Summary of Noninterest Income	Included below is a summary of noninterest income for the three months ended March 31, 2021 and 2020: Three months ended March 31, (Dollars in thousands) 2021 2020 Noninterest income: Gains on investment securities, net $ 167,078 $ 46,055 Gains on equity warrant assets, net 221,685 13,395 Client investment fees 20,065 43,393 Foreign exchange fees 57,393 47,505 Credit card fees 27,567 28,304 Deposit service charges 25,151 24,589 Lending related fees 15,657 13,125 Letters of credit and standby letters of credit fees 13,051 11,542 Investment banking revenue 142,302 46,867 Commissions 24,439 16,022 Other 29,792 11,137 Total noninterest income $ 744,180 $ 301,934
Components of Gains and Losses (Realized and Unrealized) on Investment Securities	A summary of gains and losses on investment securities for the three months ended March 31, 2021 and 2020 is as follows: Three months ended March 31, (Dollars in thousands) 2021 2020 Gains (losses) on non-marketable and other equity securities, net $ 167,078 $ (15,110) Gains on sales of available-for-sale securities, net — 61,165 Total gains on investment securities, net $ 167,078 $ 46,055
Components of Gains on Equity Warrant Assets	A summary of net gains on equity warrant assets for the three months ended March 31, 2021 and 2020 is as follows: Three months ended March 31, (Dollars in thousands) 2021 2020 Equity warrant assets: Gains on exercises, net $ 159,637 $ 19,193 Terminations (249) (326) Changes in fair value, net 62,297 (5,472) Total net gains on equity warrant assets $ 221,685 $ 13,395
Components of Client Investment Fees	A summary of client investment fees by instrument type for the three months ended March 31, 2021 and 2020 is as follows: Three months ended March 31, (Dollars in thousands) 2021 2020 Client investment fees by type: Sweep money market fees $ 10,461 $ 23,049 Asset management fees (1) 9,020 9,137 Repurchase agreement fees 584 11,207 Total client investment fees (2) $ 20,065 $ 43,393 (1) Represents fees earned from investments in third-party money market mutual funds and fixed-income securities managed by SVB Asset Management. (2) Represents fees earned on client investment funds that are maintained at third-party financial institutions and are not recorded on our balance sheet.
Components of Foreign Exchange Fees	A summary of foreign exchange fee income by instrument type for the three months ended March 31, 2021 and 2020 is as follows: Three months ended March 31, (Dollars in thousands) 2021 2020 Foreign exchange fees by instrument type: Spot contract commissions $ 54,929 $ 40,934 Forward contract commissions 2,348 6,339 Option premium fees 116 232 Total foreign exchange fees $ 57,393 $ 47,505
Components of Credit Card Fees	A summary of credit card fees by instrument type for the three months ended March 31, 2021 and 2020 is as follows: Three months ended March 31, (Dollars in thousands) 2021 2020 Credit card fees by instrument type: Card interchange fees, net $ 22,848 $ 21,775 Merchant service fees 3,772 5,027 Card service fees 947 1,502 Total credit card fees $ 27,567 $ 28,304
Components of Lending Related Fees	A summary of lending related fees by instrument type for the three months ended March 31, 2021 and 2020 is as follows: Three months ended March 31, (Dollars in thousands) 2021 2020 Lending related fees by instrument type: Unused commitment fees $ 12,256 $ 8,406 Other 3,401 4,719 Total lending related fees $ 15,657 $ 13,125
Schedule of Investment Banking Revenue	A summary of investment banking revenue by instrument type for the three months ended March 31, 2021 and 2020 is as follows: Three months ended March 31, (Dollars in thousands) 2021 2020 Investment banking revenue: Underwriting fees $ 125,076 $ 31,290 Advisory fees 4,450 15,487 Private placements and other 12,776 90 Total investment banking revenue $ 142,302 $ 46,867
Summary of Other Noninterest Income	A summary of other noninterest income by instrument type for the three months ended March 31, 2021 and 2020 is as follows: Three months ended March 31, (Dollars in thousands) 2021 2020 Other noninterest income by instrument type: Fund management fees $ 14,559 $ 7,908 Net losses on revaluation of foreign currency instruments, net of foreign exchange forward contracts (1) (952) (244) Other service revenue 16,185 3,473 Total other noninterest income $ 29,792 $ 11,137 (1) Represents the net revaluation of client and internal foreign currency denominated financial instruments. We enter into foreign exchange forward contracts to economically reduce our foreign exchange exposure related to client and internal foreign currency denominated financial instruments.
Disaggregation of Revenue	The following tables present our revenues from contracts with customers disaggregated by revenue source and segment for the three months ended March 31, 2021 and 2020: Three months ended March 31, 2021 Global SVB Private SVB Capital (2) SVB Other Items Total Revenue from contracts with customers: Client investment fees $ 19,253 $ 812 $ — $ — $ — $ 20,065 Spot contract commissions 54,603 158 — — 168 54,929 Card interchange fees, gross 41,293 4 — — 267 41,564 Merchant service fees 3,772 — — — — 3,772 Deposit service charges 24,550 19 — — 582 25,151 Investment banking revenue — — — 142,302 — 142,302 Commissions — — — 24,439 — 24,439 Fund management fees — — 13,119 1,440 — 14,559 Performance fees — — 69 — — 69 Correspondent bank rebates 1,289 — — — — 1,289 Total revenue from contracts with customers $ 144,760 $ 993 $ 13,188 $ 168,181 $ 1,017 $ 328,139 Revenues outside the scope of ASC 606 (1) 13,911 5 55,406 2,786 343,933 416,041 Total noninterest income $ 158,671 $ 998 $ 68,594 $ 170,967 $ 344,950 $ 744,180 (1) Amounts are accounted for under separate guidance than ASC 606. (2) Global Commercial Bank’s, SVB Capital’s and SVB Leerink's components of noninterest income are shown net of noncontrolling interests. Noncontrolling interest is included within “Other Items. " Three months ended March 31, 2020 Global SVB Private SVB Capital (2) SVB Other Items Total Revenue from contracts with customers: Client investment fees $ 42,736 $ 657 $ — $ — $ — $ 43,393 Spot contract commissions 40,675 161 — — 98 40,934 Card interchange fees, gross 35,724 7 — — 566 36,297 Merchant service fees 5,027 — — — — 5,027 Deposit service charges 24,238 27 — — 324 24,589 Investment banking revenue — — — 46,867 — 46,867 Commissions — — — 16,022 — 16,022 Fund management fees — — 6,478 1,430 — 7,908 Correspondent bank rebates 1,403 — — — — 1,403 Total revenue from contracts with customers $ 149,803 $ 852 $ 6,478 $ 64,319 $ 988 $ 222,440 Revenues outside the scope of ASC 606 (1) 17,031 48 (1,560) (1,642) 65,617 79,494 Total noninterest income $ 166,834 $ 900 $ 4,918 $ 62,677 $ 66,605 $ 301,934 (1) Amounts are accounted for under separate guidance than ASC 606. (2) Global Commercial Bank’s, SVB Capital’s and SVB Leerink's components of noninterest income are shown net of noncontrolling interests. Noncontrolling interest is included within “Other Items. "

Other Noninterest Expense (Tabl

Other Noninterest Expense (Tables)	3 Months Ended
Other Noninterest Expense (Tables)	Mar. 31, 2021
Other Income and Expenses [Abstract]
Summary of Other Noninterest Expense	A summary of other noninterest expense for the three months ended March 31, 2021 and 2020 is as follows: Three months ended March 31, (Dollars in thousands) 2021 2020 Lending and other client related processing costs $ 7,516 $ 9,158 Correspondent bank fees 4,301 3,986 Investment banking activities 6,730 3,030 Trade order execution costs 2,988 2,745 Data processing services 4,606 3,454 Telephone 1,872 2,227 Dues and publications 1,103 1,130 Postage and supplies 570 856 Other 15,770 14,117 Total other noninterest expense $ 45,456 $ 40,703

Segment Reporting (Tables)

Segment Reporting (Tables)	3 Months Ended
Segment Reporting (Tables)	Mar. 31, 2021
Segment Reporting [Abstract]
Segment Reporting	Our segment information for the three months ended March 31, 2021 and 2020 is as follows: (Dollars in thousands) Global SVB Private SVB Capital (1) SVB Other Items (2) Total Three months ended March 31, 2021 Net interest income $ 618,609 $ 27,025 $ 2 $ 166 $ 13,777 $ 659,579 (Provision for) reduction of credit losses (44,503) 8,567 — — 17,257 (18,679) Noninterest income 158,671 998 68,594 170,967 344,950 744,180 Noninterest expense (3) (277,763) (12,958) (15,233) (136,352) (193,695) (636,001) Income before income tax expense (4) $ 455,014 $ 23,632 $ 53,363 $ 34,781 $ 182,289 $ 749,079 Total average loans, amortized cost $ 39,286,744 $ 4,977,080 $ — $ — $ 2,017,652 $ 46,281,476 Total average assets (5) (6) 108,927,856 5,028,004 576,705 767,300 9,514,743 124,814,608 Total average deposits 106,267,572 3,292,673 — — 1,048,169 110,608,414 Three months ended March 31, 2020 Net interest income $ 463,835 $ 15,164 $ 21 $ 201 $ 44,916 $ 524,137 (Provision for) reduction of credit losses (194,411) (54,490) — — 5,421 (243,480) Noninterest income 166,834 900 4,918 62,677 66,605 301,934 Noninterest expense (3) (224,855) (10,090) (8,585) (62,037) (94,018) (399,585) Income (loss) before income tax expense (4) $ 211,403 $ (48,516) $ (3,646) $ 841 $ 22,924 $ 183,006 Total average loans, amortized cost $ 29,137,484 $ 3,857,478 $ — $ — $ 665,766 $ 33,660,728 Total average assets (5) (6) 61,813,129 3,892,400 447,201 483,648 5,770,790 72,407,168 Total average deposits 59,217,433 1,922,663 — — 668,135 61,808,231 (1) Global Commercial Bank’s, SVB Capital’s and SVB Leerink's components of net interest income, noninterest income, noninterest expense and total average assets are shown net of noncontrolling interests for all periods presented. Noncontrolling interest is included within “Other Items." (2) The “Other Items” column reflects the adjustments necessary to reconcile the results of the operating segments to the consolidated financial statements prepared in conformity with GAAP. Net interest income consists primarily of interest earned from our fixed income investment portfolio, net of FTP. Noninterest income consists primarily of gains or losses on equity warrant assets, gains or losses on the sale of AFS securities and gains or losses on equity securities from exercised warrant assets. Noninterest expense consists primarily of expenses associated with corporate support functions such as finance, human resources, marketing, legal and other expenses. (3) The Global Commercial Bank segment includes direct depreciation and amortization of $6.8 million and $5.5 million for the three months ended March 31, 2021 and 2020, respectively. (4) The internal reporting model used by management to assess segment performance does not calculate income tax expense by segment. Our effective tax rate is a reasonable approximation of the segment rates. (5) Total average assets equal the greater of total average assets or the sum of total average liabilities and total average stockholders' equity for each segment to reconcile the results to the consolidated financial statements prepared in conformity with GAAP.

Off-Balance Sheet Arrangement_2

Off-Balance Sheet Arrangements, Guarantees and Other Commitments (Tables)	3 Months Ended
	Mar. 31, 2021
Disclosure Off Balance Sheet Arrangements Guarantees And Other Commitments Additional Information [Abstract]
Summary Information Related to Commitments to Extend Credit (Excluding Letters of Credit)	The following table summarizes information related to our commitments to extend credit at March 31, 2021 and December 31, 2020: (Dollars in thousands) March 31, 2021 December 31, 2020 Loan commitments available for funding: (1) $ 30,923,217 $ 28,975,133 Commercial and standby letters of credit (2) 3,063,410 3,007,118 Total unfunded credit commitments $ 33,986,627 $ 31,982,251 Allowance for unfunded credit commitments (3) 104,750 120,796 (1) Represents commitments which are available for funding, due to clients meeting all collateral, compliance and financial covenants required under loan commitment agreements. (2) See below for additional information on our commercial and standby letters of credit. (3) Our allowance for credit losses for unfunded credit commitments includes an allowance for both our unfunded loan commitments and our letters of credit.
Summary of Commercial and Standby Letters of Credit	The table below summarizes our commercial and standby letters of credit at March 31, 2021. The maximum potential amount of future payments represents the amount that could be remitted under letters of credit if there were a total default by the guaranteed parties, without consideration of possible recoveries under recourse provisions or from the collateral held or pledged. (Dollars in thousands) Expires in One Expires After Total Amount Maximum Amount Financial standby letters of credit $ 2,833,713 $ 79,552 $ 2,913,265 $ 2,913,265 Performance standby letters of credit 118,222 20,116 138,338 138,338 Commercial letters of credit 11,807 — 11,807 11,807 Total $ 2,963,742 $ 99,668 $ 3,063,410 $ 3,063,410
Total Capital Commitments, Unfunded Capital Commitments, and Ownership in Each Fund	The following table details our total capital commitments, unfunded capital commitments, and our ownership percentage in each fund at March 31, 2021: (Dollars in thousands) SVBFG Capital Commitments SVBFG Unfunded SVBFG Ownership CP II, LP (1) $ 1,200 $ 162 5.1 % Capital Preferred Return Fund, LP 12,688 — 20.0 Growth Partners, LP 24,670 1,340 33.0 Strategic Investors Fund, LP 15,300 688 12.6 Strategic Investors Fund II, LP 15,000 1,050 8.6 Strategic Investors Fund III, LP 15,000 1,275 5.9 Strategic Investors Fund IV, LP 12,239 2,325 5.0 Strategic Investors Fund V funds 515 131 Various Other venture capital and private equity fund investments (equity method accounting) 21,843 2,795 Various Debt funds (equity method accounting) 58,733 211 Various Other fund investments (2) 277,515 10,118 Various Total $ 454,703 $ 20,095 (1) Our ownership includes direct ownership of 1.3 percent and indirect ownership interest of 3.8 percent through our investment in Strategic Investors Fund II, LP. (2) Represents commitments to 167 funds (primarily venture capital funds) where our ownership interest is generally less than five percent of the voting interests of each such fund.
Remaining Unfunded Commitments to Venture Capital or Private Equity Funds by Consolidated Managed Funds	The following table details the amounts of remaining unfunded commitments to venture capital and private equity funds by our consolidated managed funds of funds (including our interest and the noncontrolling interests) at March 31, 2021: (Dollars in thousands) Unfunded Commitments Strategic Investors Fund, LP $ 196 Capital Preferred Return Fund, LP 1,519 Growth Partners, LP 2,518 Total $ 4,233

Fair Value of Financial Instr_2

Fair Value of Financial Instruments (Tables)	3 Months Ended
Fair Value of Financial Instruments (Tables)	Mar. 31, 2021
Fair Value Disclosures [Abstract]
Fair Value Hierarchy Tables Present Information about Assets and Liabilities Measured at Fair Value on a Recurring Basis	The following fair value hierarchy table presents information about our assets and liabilities that are measured at fair value on a recurring basis as of March 31, 2021: (Dollars in thousands) Level 1 Level 2 Level 3 Balance at March 31, 2021 Assets: Available-for-sale securities: U.S. Treasury securities $ 4,438,396 $ — $ — $ 4,438,396 U.S. agency debentures — 226,095 — 226,095 Foreign government debt securities 23,450 — — 23,450 Residential mortgage-backed securities: Agency-issued mortgage-backed securities — 12,514,911 — 12,514,911 Agency-issued collateralized mortgage obligations — fixed rate — 7,256,626 — 7,256,626 Agency-issued commercial mortgage-backed securities — 1,526,993 — 1,526,993 Total available-for-sale securities 4,461,846 21,524,625 — 25,986,471 Non-marketable and other equity securities (fair value accounting): Non-marketable securities: Venture capital and private equity fund investments measured at net asset value — — — 274,424 Other equity securities in public companies 38,253 122,557 — 160,810 Total non-marketable and other equity securities (fair value accounting) 38,253 122,557 — 435,234 Other assets: Foreign exchange forward and option contracts — 240,183 — 240,183 Equity warrant assets — 10,952 233,382 244,334 Client interest rate derivatives — 65,123 — 65,123 Total assets $ 4,500,099 $ 21,963,440 $ 233,382 $ 26,971,345 Liabilities: Foreign exchange forward and option contracts $ — $ 202,532 $ — $ 202,532 Client interest rate derivatives — 68,954 — 68,954 Total liabilities $ — $ 271,486 $ — $ 271,486 The following fair value hierarchy table presents information about our assets and liabilities that are measured at fair value on a recurring basis as of December 31, 2020: (Dollars in thousands) Level 1 Level 2 Level 3 Balance at December 31, 2020 Assets: Available-for-sale securities: U.S. Treasury securities $ 4,469,728 $ — $ — $ 4,469,728 U.S. agency debentures — 237,307 — 237,307 Foreign government debt securities 24,492 — — 24,492 Residential mortgage-backed securities: Agency-issued mortgage-backed securities — 13,503,681 — 13,503,681 Agency-issued collateralized mortgage obligations—fixed rate — 8,106,564 — 8,106,564 Agency-issued commercial mortgage-backed securities — 4,570,666 — 4,570,666 Total available-for-sale securities 4,494,220 26,418,218 — 30,912,438 Non-marketable and other equity securities (fair value accounting): Non-marketable securities: Venture capital and private equity fund investments measured at net asset value — — — 273,823 Other equity securities in public companies 43,344 237,460 — 280,804 Total non-marketable and other equity securities (fair value accounting) 43,344 237,460 — 554,627 Other assets: Foreign exchange forward and option contracts — 216,977 — 216,977 Equity warrant assets — 11,221 192,217 203,438 Client interest rate derivatives — 67,854 — 67,854 Total assets $ 4,537,564 $ 26,951,730 $ 192,217 $ 31,955,334 Liabilities: Foreign exchange forward and option contracts $ — $ 210,833 $ — $ 210,833 Client interest rate derivatives — 26,646 — 26,646 Total liabilities $ — $ 237,479 $ — $ 237,479
Additional Information about Level 3 Assets Measured at Fair Value on a Recurring Basis	The following table presents additional information about Level 3 assets measured at fair value on a recurring basis for the three months ended March 31, 2021 and 2020: (Dollars in thousands) Beginning Balance Total Net Gains Included in Net Income Purchases Sales/Exits Issuances Other (3) Transfers Out of Level 3 Ending Balance Three months ended March 31, 2021 Other assets: Equity warrant assets (1) $ 192,217 $ 219,827 $ — $ (181,413) $ 6,565 $ (39) $ (3,775) $ 233,382 Total assets $ 192,217 $ 219,827 $ — $ (181,413) $ 6,565 $ (39) $ (3,775) $ 233,382 Three months ended March 31, 2020 Non-marketable and other equity securities (fair value accounting): Venture capital and private equity fund investments not measured at net asset value (2) $ 134 $ 5 $ — $ (5) $ — $ — $ — $ 134 Other assets: Equity warrant assets (1) 161,038 14,601 — (30,034) 4,519 — (266) 149,858 Total assets $ 161,172 $ 14,606 $ — $ (30,039) $ 4,519 $ — $ (266) $ 149,992 (1) Realized and unrealized gains (losses) are recorded in the line item “Gains on equity warrant assets, net," a component of noninterest income. (2) Realized and unrealized gains (losses) are recorded in the line item “Gains on investment securities, net," a component of noninterest income.
Unrealized Gains Included in Earnings Attributable to Level 3 Assets Held	The following table presents the amount of net unrealized gains and losses included in earnings attributable to Level 3 assets still held at March 31, 2021 and 2020: Three months ended March 31, (Dollars in thousands) 2021 2020 Other assets: Equity warrant assets (1) $ 60,639 $ (4,145) Total unrealized gains (losses), net $ 60,639 $ (4,145) (1) Unrealized gains (losses) are recorded in the line item “Gains on equity warrant assets, net, " a component of noninterest income.
Quantitative Information About Significant Unobservable Inputs	The following table presents quantitative information about the significant unobservable inputs used for certain of our Level 3 fair value measurements at March 31, 2021 and December 31, 2020. We have not included in this table our venture capital and private equity fund investments (fair value accounting) as we use net asset value per share (as obtained from the general partners of the investments) as a practical expedient to determine fair value. (Dollars in thousands) Fair value Valuation Technique Significant Unobservable Inputs Input Range Weighted March 31, 2021: Equity warrant assets (public portfolio) 28 Black-Scholes option pricing model Volatility 47.4% 47.4 % Risk-Free interest rate 0.9- 1.6 1.1 Sales restrictions discount (2) 10.0 10.0 Equity warrant assets (private portfolio) 233,354 Black-Scholes option pricing model Volatility 25.0 - 58.0 45.7 Risk-Free interest rate 0.01 - 1.17 0.3 Marketability discount (3) 21.7 21.7 Remaining life assumption (4) 40.0 40.0 December 31, 2020: Equity warrant assets (public portfolio) 1,036 Black-Scholes option pricing model Volatility 46.0% - 56.8% 49.1 % Risk-Free interest rate 0.3- 0.9 0.6 Sales restrictions discount (2) 10.0 - 20.0 10.2 Equity warrant assets (private portfolio) 191,181 Black-Scholes option pricing model Volatility 24.4 - 56.8 43.2 Risk-Free interest rate 0.01 - 0.52 0.1 Marketability discount (3) 20.63 20.6 Remaining life assumption (4) 40.0 40.0 (1) In determining the fair value of our venture capital and private equity fund investment portfolio (not measured at net asset value), we evaluate a variety of factors related to each underlying private portfolio company including, but not limited to, actual and forecasted results, cash position, recent or planned transactions and market comparable companies. Additionally, we have ongoing communication with the portfolio companies and venture capital fund managers, to determine whether there is a material change in fair value. We use company provided valuation reports, if available, to support our valuation assumptions. These factors are specific to each portfolio company and a weighted average or range of values of the unobservable inputs is not meaningful. (2) We adjust quoted market prices of public companies, which are subject to certain sales restrictions. Sales restriction discounts generally range from 10 percent to 20 percent depending on the duration of the sales restrictions, which typically range from three (3) Our marketability discount is applied to all private company warrants to account for a general lack of liquidity due to the private nature of the associated underlying company. The quantitative measure used is based upon various option-pricing models. On a quarterly basis, a sensitivity analysis is performed on our marketability discount.
Summary of Estimated Fair Values of Financial Instruments Not Carried at Fair Value	The following fair value hierarchy table presents the estimated fair values of our financial instruments that are not carried at fair value at March 31, 2021 and December 31, 2020: Estimated Fair Value (Dollars in thousands) Carrying Amount Total Level 1 Level 2 Level 3 March 31, 2021: Financial assets: Cash and cash equivalents $ 21,254,859 $ 21,254,859 $ 21,254,859 $ — $ — Held-to-maturity securities 41,164,620 41,186,735 — 41,186,735 — Non-marketable securities not measured at net asset value 379,224 379,224 — — 379,224 Non-marketable securities measured at net asset value 426,306 426,306 — — — Net commercial loans 42,264,653 43,438,142 — — 43,438,142 Net consumer loans 5,018,762 5,158,216 — — 5,158,216 FHLB and Federal Reserve Bank stock 83,355 83,355 — — 83,355 Financial liabilities: Short-term borrowings 38,434 38,434 — 38,434 — Non-maturity deposits (1) 123,454,403 123,454,403 123,454,403 — — Time deposits 695,703 394,574 — 394,574 — 3.50% Senior Notes 348,441 378,242 — 378,242 — 3.125% Senior Notes 495,387 521,205 — 521,205 — 1.80% Senior Notes 494,355 463,625 — 463,625 — Off-balance sheet financial assets: Commitments to extend credit — 39,003 — — 39,003 December 31, 2020: Financial assets: Cash and cash equivalents $ 17,674,763 $ 17,674,763 $ 17,674,763 $ — $ — Held-to-maturity securities 16,592,153 17,216,871 — 17,216,871 — Non-marketable securities not measured at net asset value 240,761 240,761 — — 240,761 Non-marketable securities measured at net asset value 390,658 390,658 — — — Net commercial loans 39,886,296 40,412,490 — — 40,412,490 Net consumer loans 4,847,427 4,911,451 — — 4,911,451 FHLB and Federal Reserve Bank stock 61,232 61,232 — — 61,232 Financial liabilities: Short-term borrowings 20,553 20,553 — 20,553 — Non-maturity deposits (1) 101,293,346 101,293,346 101,293,346 — — Time deposits 688,461 501,853 — 501,853 — 3.50% Senior Notes 348,348 382,855 — 382,855 — 3.125% Senior Notes 495,280 563,840 — 563,840 — Off-balance sheet financial assets: Commitments to extend credit — 36,672 — — 36,672 (1) Includes noninterest-bearing demand deposits, interest-bearing checking accounts, money market accounts and interest-bearing sweep deposits.
Summary of Estimated Fair Values of Investments and Remaining Unfunded Commitments for Each Major Category of Investments	The following table is a summary of the estimated fair values of these investments and remaining unfunded commitments for each major category of these investments as of March 31, 2021: (Dollars in thousands) Carrying Amount Fair Value Unfunded Commitments Non-marketable securities (fair value accounting): Venture capital and private equity fund investments (1) $ 274,424 $ 274,424 $ 19,030 Non-marketable securities (equity method accounting): Venture capital and private equity fund investments (2) 394,349 394,349 13,303 Debt funds (2) 5,813 5,813 211 Other investments (2) 26,144 26,144 886 Total $ 700,730 $ 700,730 $ 33,430 (1) Venture capital and private equity fund investments within non-marketable securities (fair value accounting) include investments made by our managed funds of funds and one of our direct venture funds (consolidated VIEs) and investments in venture capital and private equity fund investments (unconsolidated VIEs). Collectively, these investments in venture capital and private equity funds are primarily in U.S. and global technology and life science/healthcare companies. Included in the fair value and unfunded commitments of fund investments under fair value accounting are $70.8 million and $3.0 million, respectively, attributable to noncontrolling interests. It is estimated that we will receive distributions from the fund investments over the next 10 to 13 years, depending on the age of the funds and any potential extensions of terms of the funds. (2) Venture capital and private equity fund investments, debt funds, and other fund investments within non-marketable securities (equity method accounting) include funds that invest in or lend money to primarily U.S. and global technology and life science/healthcare companies. It is estimated that we will receive distributions from the funds over the next 5 to 8 years, depending on the age of the funds and any potential extensions of the terms of the funds.

Stockholders' Equity and EPS -

Stockholders' Equity and EPS - Reclassification out of AOCI (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Gains on investment securities, net	$ 167,078	$ 46,055
Related tax benefit	(187,315)	(49,357)
Net interest income	659,579	524,137
Total reclassification adjustment for gains included in net income, net of tax	532,220	132,253
Reclassification out of Accumulated Other Comprehensive Income
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Total reclassification adjustment for gains included in net income, net of tax	(11,305)	(45,722)
Accumulated Net Investment Gain (Loss) Attributable to Parent \| Reclassification out of Accumulated Other Comprehensive Income
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Gains on investment securities, net	0	(61,165)
Related tax benefit	0	(16,953)
Accumulated Gain (Loss), Net, Cash Flow Hedge, Parent \| Reclassification out of Accumulated Other Comprehensive Income
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Related tax benefit	(4,352)	(579)
Net interest income	$ (15,657)	$ (2,089)

Stockholders' Equity and EPS _2

Stockholders' Equity and EPS - Activity Related to Net Gains on Cash Flow Hedges in AOCI (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Accumulated Other Comprehensive Income (Loss) [Line Items]
Cash flow hedge gains expected to reclassified out of AOCI over next 12 months	$ 62,500
Balance, beginning of period, net of tax	8,433,491	$ 6,621,080
Balance, end of period, net of tax	10,120,779	7,183,221
Accumulated Gain (Loss), Net, Cash Flow Hedge, Parent
Accumulated Other Comprehensive Income (Loss) [Line Items]
Balance, beginning of period, net of tax	129,273	(2,130)
Net increase in fair value, net of tax	0	167,639
Net realized gain reclassified to net income, net of tax	(11,305)	(1,510)
Balance, end of period, net of tax	$ 117,968	$ 163,999

Stockholders' Equity and EPS _3

Stockholders' Equity and EPS - Reconciliation of Basic EPS to Diluted EPS (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Numerator:
Net income available to common stockholders	$ 532,220	$ 132,253
Denominator:
Weighted average common shares outstanding-basic (in shares)	52,180	51,565
Weighted average common shares outstanding—diluted (in shares)	53,076	51,944
Earnings per common share:
Basic (dollars per share)	$ 10.20	$ 2.56
Diluted (dollars per share)	$ 10.03	$ 2.55
Stock options and ESPP
Denominator:
Weighted average effect of dilutive securities (in shares)	294	217
Restricted stock units and awards
Denominator:
Weighted average effect of dilutive securities (in shares)	602	162

Stockholders' Equity and EPS _4

Stockholders' Equity and EPS - Common Shares Excluded from Diluted EPS Calculation as They Were Deemed to be Anti-Dilutive (Details) - shares shares in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Shares excluded from diluted earnings per share calculation	18	325
Stock options
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Shares excluded from diluted earnings per share calculation	0	206
Restricted stock units and awards
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Shares excluded from diluted earnings per share calculation	18	119

Stockholders' Equity and EPS _5

Stockholders' Equity and EPS - Common Stock (Details) - USD ($) $ / shares in Units, $ in Millions	Mar. 22, 2021	Mar. 31, 2021	Dec. 31, 2020
Class of Stock [Line Items]
Common stock, shares, issued		54,001,797	51,888,463
Common Stock
Class of Stock [Line Items]
Common stock, shares, issued	2,000,000
Shares Issued, Price Per Share	$ 500
Net proceeds after deducting discounts and commissions	$ 972.1

Stockholders' Equity and EPS _6

Stockholders' Equity and EPS - Preferred Stock (Details) $ / shares in Units, $ in Thousands	Feb. 02, 2021$ / sharesshares	Dec. 09, 2019$ / sharesshares	Mar. 31, 2021USD ($)$ / sharesshares	Dec. 31, 2020USD ($)$ / sharesshares
Class of Stock [Line Items]
Preferred stock, par value, in usd per share \| $ / shares			$ 0.001	$ 0.001
Preferred stock, shares issued \| shares			357,500	350,000
Carrying value \| $			$ 1,079,333	$ 340,138
Preferred Stock, Series A
Class of Stock [Line Items]
Preferred stock, dividend rate, percentage		5.25%
Preferred stock, depositary shares issued \| shares		14,000,000
Preferred stock, depository share ownership interest			0.025
Preferred stock, par value, in usd per share \| $ / shares		$ 0.001	$ 0.001
Preferred stock, liquidation preference per share, in usd per share \| $ / shares		1,000
Preferred stock, liquidation preference per depositary share \| $ / shares		$ 25
Preferred stock, shares issued \| shares			350,000
Preferred stock, shares outstanding \| shares			350,000
Carrying value \| $			$ 340,100
Preferred stock, liquidation preference, value \| $			$ 350,000
Series B Preferred Stock
Class of Stock [Line Items]
Preferred stock, dividend rate, percentage	4.10%
Preferred stock, depositary shares issued \| shares	750,000
Preferred stock, depository share ownership interest			0.01
Preferred stock, par value, in usd per share \| $ / shares	$ 0.001		$ 0.001
Preferred stock, liquidation preference per share, in usd per share \| $ / shares	100,000
Preferred stock, liquidation preference per depositary share \| $ / shares	$ 1,000
Preferred stock, period dividend rate reset	10 years
Preferred stock, number of business days prior to each reset date dividend rate calculated	3 days
Preferred stock, number of days used for average yields on actively traded US Treasury securities	5 days
Preferred stock, margin used for dividend rate at reset	3.064%
Preferred stock, shares issued \| shares			7,500
Preferred stock, shares outstanding \| shares			7,500
Carrying value \| $			$ 739,200
Preferred stock, liquidation preference, value \| $			$ 750,000

Stockholders' Equity and EPS _7

Stockholders' Equity and EPS - Preferred Stock Summary (Details) $ / shares in Units, $ in Thousands	3 Months Ended
	Mar. 31, 2021USD ($)$ / sharesshares	Feb. 02, 2021$ / shares	Dec. 31, 2020USD ($)$ / sharesshares	Dec. 09, 2019$ / shares
Class of Stock [Line Items]
Carrying value \| $	$ 1,079,333		$ 340,138
Preferred stock, shares issued \| shares	357,500		350,000
Preferred stock, par value, in usd per share	$ 0.001		$ 0.001
Preferred Stock, Series A
Class of Stock [Line Items]
Amount outstanding \| $	$ 350,000
Carrying value \| $	$ 340,100
Preferred stock, shares issued \| shares	350,000
Preferred stock, shares outstanding \| shares	350,000
Preferred stock, par value, in usd per share	$ 0.001			$ 0.001
Preferred stock, depository share ownership interest	0.025
Preferred stock, liquidation preference per depositary share				$ 25
Preferred stock, dividends paid per depository share, usd per share	$ 0.33
Series B Preferred Stock
Class of Stock [Line Items]
Amount outstanding \| $	$ 750,000
Carrying value \| $	$ 739,200
Preferred stock, shares issued \| shares	7,500
Preferred stock, shares outstanding \| shares	7,500
Preferred stock, par value, in usd per share	$ 0.001	$ 0.001
Preferred stock, depository share ownership interest	0.01
Preferred stock, liquidation preference per depositary share		$ 1,000
Preferred stock, dividends paid per depository share, usd per share	$ 0

Share-Based Compensation - Shar

Share-Based Compensation - Share-Based Compensation and Related Tax Benefits (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Share-based Payment Arrangement [Abstract]
Share-based compensation expense	$ 26,691	$ 19,171
Income tax benefit related to share-based compensation expense	$ (6,278)	$ (4,440)

Share-Based Compensation - Unre

Share-Based Compensation - Unrecognized Compensation Expense (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2021USD ($)
Unrecognized Share Based Compensation Expense [Line Items]
Unrecognized Expense	$ 139,818
Stock options
Unrecognized Share Based Compensation Expense [Line Items]
Unrecognized Expense	$ 12,059
Average Expected Recognition Period - in Years	2 years 3 months 3 days
Restricted stock units and awards
Unrecognized Share Based Compensation Expense [Line Items]
Unrecognized Expense	$ 127,759
Average Expected Recognition Period - in Years	2 years 7 months 24 days

Share-Based Compensation - Sh_2

Share-Based Compensation - Share-Based Payment Award Activity (Details)	3 Months Ended
	Mar. 31, 2021USD ($)$ / sharesshares
Options
Outstanding, beginning of period, in shares \| shares	559,001
Exercised, in shares \| shares	(83,516)
Forfeited, in shares \| shares	(604)
Outstanding, end of period, in shares \| shares	474,881
Vested and expected to vest, end of period, in shares \| shares	457,920
Exercisable, end of period, in shares \| shares	193,079
Weighted Average Exercise Price
Outstanding, beginning of period, in usd per share \| $ / shares	$ 191.29
Exercised, in usd per share \| $ / shares	136.14
Forfeited, in usd per share \| $ / shares	254.35
Outstanding, end of period, in usd per share \| $ / shares	200.91
Vested and expected to vest, end of period, in usd per share \| $ / shares	200.35
Exercisable, end of period, in usd per share \| $ / shares	$ 166.23
Weighted Average Remaining Contractual Life - in Years
Outstanding, end of period	4 years 2 months 1 day
Vested and expected to vest, end of period	4 years 1 month 13 days
Exercisable, end of period	2 years 6 months 29 days
Aggregate Intrinsic Value of In-The-Money Options
Outstanding, end of period \| $	$ 139,021,519
Vested and expected to vest, end of period \| $	134,311,416
Exercisable, end of period \| $	$ 63,219,304

Share-Based Compensation - Aggr

Share-Based Compensation - Aggregate Intrinsic Value and Closing Stock Price of Options (Details) - USD ($) $ / shares in Units, $ in Millions	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Share-based Payment Arrangement [Abstract]
Closing stock price (usd per share)	$ 493.66
Total intrinsic value of options exercised	$ 28.7	$ 8.3

Share-Based Compensation - Info

Share-Based Compensation - Information for Restricted Stock Units under Equity Incentive Plan (Details) - Restricted stock units and awards	3 Months Ended
	Mar. 31, 2021$ / sharesshares
Shares
Nonvested, beginning of period, in shares \| shares	995,049
Granted, in shares \| shares	57,323
Vested, in shares \| shares	(73,716)
Forfeited, in shares \| shares	(17,579)
Nonvested, end of period, in shares \| shares	961,077
Weighted Average Grant Date Fair Value
Nonvested, beginning of period, in usd per share \| $ / shares	$ 227.12
Granted, in usd per share \| $ / shares	499.90
Vested, in usd per share \| $ / shares	256.76
Forfeited, in usd per share \| $ / shares	263.28
Nonvested, end of period, in usd per share \| $ / shares	$ 240.46

Variable Interest Entities - Ca

Variable Interest Entities - Carrying Amounts and Classification of Significant Variable Interests (Details) - USD ($) $ in Thousands	Mar. 31, 2021	Dec. 31, 2020
Variable Interest Entity [Line Items]
Cash and cash equivalents	$ 21,254,859	$ 17,674,763
Non-marketable and other equity securities	1,857,761	1,802,235
Accrued interest receivable and other assets	4,184,114	3,205,825
Total assets	142,346,620	115,511,007
Other liabilities	6,411,705	3,971,974
Total liabilities	132,225,841	107,077,516
Maximum exposure to loss in unconsolidated VIEs	867,187	858,617
Investments in qualified affordable housing projects, net	616,997	616,188
Consolidated
Variable Interest Entity [Line Items]
Cash and cash equivalents	11,392	14,859
Non-marketable and other equity securities	450,537	422,049
Accrued interest receivable and other assets	13,094	937
Total assets	475,023	437,845
Other liabilities	11,041	1,410
Total liabilities	11,041	1,410
Maximum exposure to loss in unconsolidated VIEs	464,000
Unconsolidated
Variable Interest Entity [Line Items]
Cash and cash equivalents	0	0
Non-marketable and other equity securities	867,187	858,617
Accrued interest receivable and other assets	0	0
Total assets	867,187	858,617
Other liabilities	372,516	370,208
Total liabilities	372,516	370,208
Non-marketable securities \| Unconsolidated
Variable Interest Entity [Line Items]
Maximum exposure to loss in unconsolidated VIEs	$ 867,187	$ 858,617

Variable Interest Entities - Ad

Variable Interest Entities - Additional Information (Details) $ in Thousands	Mar. 31, 2021USD ($)entity	Dec. 31, 2020USD ($)
Investments In Variable Interest Entities [Abstract]
Number of consolidated entities \| entity	3
Variable Interest Entity [Line Items]
Maximum exposure to loss in unconsolidated VIEs	$ 867,187	$ 858,617
Total assets	142,346,620	115,511,007
Unconsolidated
Variable Interest Entity [Line Items]
Total assets	$ 867,187	$ 858,617

Cash and Cash Equivalents - Sum

Cash and Cash Equivalents - Summary of Cash and Cash Equivalents (Details) - USD ($) $ in Thousands	Mar. 31, 2021	Dec. 31, 2020
Cash and Cash Equivalents [Abstract]
Cash and due from banks	$ 20,966,421	$ 17,447,916
Securities purchased under agreements to resell	288,438	226,847
Total cash and cash equivalents	$ 21,254,859	$ 17,674,763

Cash and Cash Equivalents - S_2

Cash and Cash Equivalents - Summary of Cash and Cash Equivalents (Footnote Information) (Details) - USD ($)	3 Months Ended	12 Months Ended
	Mar. 31, 2021	Dec. 31, 2020
Cash and Cash Equivalents [Abstract]
Deposits at the Federal Reserve Bank earning interest at the Federal Funds target rate	$ 16,600,000,000	$ 13,700,000,000
Interest-earning deposits in other financial institutions	3,400,000,000	3,000,000,000
Fair value of securities purchased under agreements to resell	294,500,000	232,200,000
Securities received as collateral, amount repledged and sold	$ 0	$ 0

Investment Securities - Compone

Investment Securities - Components of Available-for-Sale Investment Securities Portfolio (Details) - USD ($) $ in Thousands	Mar. 31, 2021	Dec. 31, 2020
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	$ 26,159,161	$ 30,244,896
Unrealized Gains	325,659	682,530
Unrealized Losses	(498,349)	(14,988)
Carrying Value	25,986,471	30,912,438
U.S. treasury securities
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	4,244,175	4,197,858
Unrealized Gains	195,444	271,977
Unrealized Losses	(1,223)	(107)
Carrying Value	4,438,396	4,469,728
U.S. agency debentures
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	230,375	233,727
Unrealized Gains	1,155	4,165
Unrealized Losses	(5,435)	(585)
Carrying Value	226,095	237,307
Foreign government debt securities
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	23,454	24,491
Unrealized Gains	0	1
Unrealized Losses	(4)	0
Carrying Value	23,450	24,492
Residential mortgage-backed securities \| Agency-issued mortgage-backed securities
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	12,663,089	13,271,482
Unrealized Gains	85,210	232,850
Unrealized Losses	(233,388)	(651)
Carrying Value	12,514,911	13,503,681
Residential mortgage-backed securities \| Agency-issued collateralized mortgage obligations—fixed rate
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	7,471,566	8,076,832
Unrealized Gains	19,567	40,010
Unrealized Losses	(234,507)	(10,278)
Carrying Value	7,256,626	8,106,564
Agency-issued commercial mortgage-backed securities
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	1,526,502	4,440,506
Unrealized Gains	24,283	133,527
Unrealized Losses	(23,792)	(3,367)
Carrying Value	$ 1,526,993	$ 4,570,666

Investment Securities - Activit

Investment Securities - Activity of Available-for-Sale Securities (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Investments, Debt and Equity Securities [Abstract]
Sales proceeds	$ 0	$ 2,654,212
Gross realized gains	0	61,165
Gross realized losses	0	0
Net realized gains	$ 0	$ 61,165

Investment Securities - Summary

Investment Securities - Summary of Unrealized Losses on Available-for-Sale Securities (Details) $ in Thousands	Mar. 31, 2021USD ($)Investment	Dec. 31, 2020USD ($)Investment
Debt Securities, Available-for-sale [Line Items]
Less than 12 months - Fair Value of Investments	$ 16,061,990	$ 4,285,435
Less than 12 months - Unrealized Losses	(498,349)	(14,988)
12 months or longer - Fair Value of Investments	0	0
12 months or longer - Unrealized Losses	0	0
Fair Value of Investments	16,061,990	4,285,435
Unrealized Losses	$ (498,349)	$ (14,988)
Number of investments in unrealized loss position \| Investment	400	93
Number of investments with unrealized losses greater than 12 months \| Investment	0	0
U.S. treasury securities
Debt Securities, Available-for-sale [Line Items]
Less than 12 months - Fair Value of Investments	$ 301,607	$ 59,929
Less than 12 months - Unrealized Losses	(1,223)	(107)
12 months or longer - Fair Value of Investments	0	0
12 months or longer - Unrealized Losses	0	0
Fair Value of Investments	301,607	59,929
Unrealized Losses	(1,223)	(107)
U.S. agency debentures
Debt Securities, Available-for-sale [Line Items]
Less than 12 months - Fair Value of Investments	128,228	133,143
Less than 12 months - Unrealized Losses	(5,435)	(585)
12 months or longer - Fair Value of Investments	0	0
12 months or longer - Unrealized Losses	0	0
Fair Value of Investments	128,228	133,143
Unrealized Losses	(5,435)	(585)
Foreign government debt securities
Debt Securities, Available-for-sale [Line Items]
Less than 12 months - Fair Value of Investments	23,450
Less than 12 months - Unrealized Losses	(4)
12 months or longer - Fair Value of Investments	0
12 months or longer - Unrealized Losses	0
Fair Value of Investments	23,450
Unrealized Losses	(4)
Residential mortgage-backed securities \| Agency-issued mortgage-backed securities
Debt Securities, Available-for-sale [Line Items]
Less than 12 months - Fair Value of Investments	9,608,598	903,767
Less than 12 months - Unrealized Losses	(233,388)	(651)
12 months or longer - Fair Value of Investments	0	0
12 months or longer - Unrealized Losses	0	0
Fair Value of Investments	9,608,598	903,767
Unrealized Losses	(233,388)	(651)
Residential mortgage-backed securities \| Agency-issued collateralized mortgage obligations—fixed rate
Debt Securities, Available-for-sale [Line Items]
Less than 12 months - Fair Value of Investments	5,248,844	2,199,207
Less than 12 months - Unrealized Losses	(234,507)	(10,278)
12 months or longer - Fair Value of Investments	0	0
12 months or longer - Unrealized Losses	0	0
Fair Value of Investments	5,248,844	2,199,207
Unrealized Losses	(234,507)	(10,278)
Agency-issued commercial mortgage-backed securities
Debt Securities, Available-for-sale [Line Items]
Less than 12 months - Fair Value of Investments	751,263	989,389
Less than 12 months - Unrealized Losses	(23,792)	(3,367)
12 months or longer - Fair Value of Investments	0	0
12 months or longer - Unrealized Losses	0	0
Fair Value of Investments	751,263	989,389
Unrealized Losses	$ (23,792)	$ (3,367)

Investment Securities - Summa_2

Investment Securities - Summary of Remaining Contractual Principal Maturities for Available-for-Sale Securities (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2021USD ($)
Debt Securities, Available-for-sale, Fair Value, Fiscal Year Maturity [Abstract]
Total	$ 25,986,471
One Year or Less	63,931
After One Year to Five Years	3,844,128
After Five Years to Ten Years	2,306,875
After Ten Years	19,771,537
U.S. treasury securities
Debt Securities, Available-for-sale, Fair Value, Fiscal Year Maturity [Abstract]
Total	4,438,396
One Year or Less	40,481
After One Year to Five Years	3,844,128
After Five Years to Ten Years	553,787
After Ten Years	0
U.S. agency debentures
Debt Securities, Available-for-sale, Fair Value, Fiscal Year Maturity [Abstract]
Total	226,095
One Year or Less	0
After One Year to Five Years	0
After Five Years to Ten Years	226,095
After Ten Years	0
Foreign government debt securities
Debt Securities, Available-for-sale, Fair Value, Fiscal Year Maturity [Abstract]
Total	23,450
One Year or Less	23,450
After One Year to Five Years	0
After Five Years to Ten Years	0
After Ten Years	0
Residential mortgage-backed securities \| Agency-issued mortgage-backed securities
Debt Securities, Available-for-sale, Fair Value, Fiscal Year Maturity [Abstract]
Total	12,514,911
One Year or Less	0
After One Year to Five Years	0
After Five Years to Ten Years	0
After Ten Years	12,514,911
Residential mortgage-backed securities \| Agency-issued collateralized mortgage obligations—fixed rate
Debt Securities, Available-for-sale, Fair Value, Fiscal Year Maturity [Abstract]
Total	7,256,626
One Year or Less	0
After One Year to Five Years	0
After Five Years to Ten Years	0
After Ten Years	7,256,626
Agency-issued commercial mortgage-backed securities
Debt Securities, Available-for-sale, Fair Value, Fiscal Year Maturity [Abstract]
Total	1,526,993
One Year or Less	0
After One Year to Five Years	0
After Five Years to Ten Years	1,526,993
After Ten Years	$ 0
Available-for-sale Securities \| Lower Limit
Debt Securities, Available-for-sale [Line Items]
Mortgage-backed securities contractual maturities (in years)	10 years
Available-for-sale Securities \| Upper Limit
Debt Securities, Available-for-sale [Line Items]
Mortgage-backed securities contractual maturities (in years)	30 years

Investment Securities - Compo_2

Investment Securities - Components of Held-to-Maturity Investment Securities (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2021	Dec. 31, 2020	Mar. 31, 2020	Dec. 31, 2019
Schedule of Held-to-maturity Securities [Line Items]
Amortized Cost	$ 41,165,732	$ 16,592,545
Unrealized Gains	452,837	627,338
Unrealized Losses	(431,834)	(3,012)
Fair Value	41,186,735	17,216,871
Allowance for Credit Losses	1,112	392	$ 230
Available-for-sale securities, transferred to held-to-maturity Securities	2,900,000
Available-for-sale securities, transferred to held-to-maturity securities, unrealized gain (loss)	8,700
U.S. agency debentures
Schedule of Held-to-maturity Securities [Line Items]
Amortized Cost	404,571	402,265
Unrealized Gains	11,618	18,961
Unrealized Losses	0	0
Fair Value	416,189	421,226
Allowance for Credit Losses	0	0
Residential mortgage-backed securities \| Agency-issued mortgage-backed securities
Schedule of Held-to-maturity Securities [Line Items]
Amortized Cost	23,525,681	7,739,763
Unrealized Gains	184,691	240,121
Unrealized Losses	(296,061)	(2,211)
Fair Value	23,414,311	7,977,673
Allowance for Credit Losses	0	0
Residential mortgage-backed securities \| Agency-issued collateralized mortgage obligations—fixed rate
Schedule of Held-to-maturity Securities [Line Items]
Amortized Cost	2,425,024	1,735,451
Unrealized Gains	23,807	23,227
Unrealized Losses	(5,593)	(296)
Fair Value	2,443,238	1,758,382
Allowance for Credit Losses	0	0
Residential mortgage-backed securities \| Agency-issued collateralized mortgage obligations—variable rate
Schedule of Held-to-maturity Securities [Line Items]
Amortized Cost	128,370	136,913
Unrealized Gains	667	317
Unrealized Losses	0	0
Fair Value	129,037	137,230
Allowance for Credit Losses	0	0
Agency-issued commercial mortgage-backed securities
Schedule of Held-to-maturity Securities [Line Items]
Amortized Cost	10,075,165	2,942,959
Unrealized Gains	81,135	123,846
Unrealized Losses	(85,801)	0
Fair Value	10,070,499	3,066,805
Allowance for Credit Losses	0	0
Municipal bonds and notes
Schedule of Held-to-maturity Securities [Line Items]
Amortized Cost	4,555,237	3,635,194
Unrealized Gains	150,919	220,866
Unrealized Losses	(43,935)	(505)
Fair Value	4,662,221	3,855,555
Allowance for Credit Losses	531	392	$ 230	$ 0
Corporate bonds
Schedule of Held-to-maturity Securities [Line Items]
Amortized Cost	51,684	0
Unrealized Gains	0
Unrealized Losses	(444)
Fair Value	51,240
Allowance for Credit Losses	$ 581	$ 0

Investment Securities - Summa_3

Investment Securities - Summary of Remaining Contractual Principal Maturities for Held-to-Maturity Securities (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2021	Dec. 31, 2020
Schedule of Held-to-maturity Securities [Line Items]
Fair Value	$ 41,186,735	$ 17,216,871
U.S. agency debentures
Schedule of Held-to-maturity Securities [Line Items]
Fair Value	416,189	421,226
Residential mortgage-backed securities \| Agency-issued mortgage-backed securities
Schedule of Held-to-maturity Securities [Line Items]
Fair Value	23,414,311	7,977,673
Residential mortgage-backed securities \| Agency-issued collateralized mortgage obligations—fixed rate
Schedule of Held-to-maturity Securities [Line Items]
Fair Value	2,443,238	1,758,382
Residential mortgage-backed securities \| Agency-issued collateralized mortgage obligations—variable rate
Schedule of Held-to-maturity Securities [Line Items]
Fair Value	129,037	137,230
Agency-issued commercial mortgage-backed securities
Schedule of Held-to-maturity Securities [Line Items]
Fair Value	10,070,499	3,066,805
Municipal bonds and notes
Schedule of Held-to-maturity Securities [Line Items]
Fair Value	4,662,221	$ 3,855,555
After One Year to Five Years, Amortized Cost	130,482
After Five Years to Ten Years, Amortized Cost	756,078
Corporate bonds
Schedule of Held-to-maturity Securities [Line Items]
Fair Value	51,240
After One Year to Five Years, Amortized Cost	0
After Five Years to Ten Years, Amortized Cost	51,684
Held-to-maturity Securities
Schedule of Held-to-maturity Securities [Line Items]
Fair Value	41,186,735
Amortized Cost	41,165,732
One Year or Less, Amortized Cost	58,921
One Year or Less, Fair Value	59,890
After One Year to Five Years, Amortized Cost	288,618
After One Year to Five Years, Fair Value	298,861
After Five Years to Ten Years, Amortized Cost	2,546,085
After Five Years to Ten Years, Fair Value	2,624,286
After Ten Years, Amortized Cost	38,272,108
After Ten Years, Fair Value	$ 38,203,698
Held-to-maturity Securities \| Lower Limit
Schedule of Held-to-maturity Securities [Line Items]
Mortgage-backed securities contractual maturities (in years)	10 years
Held-to-maturity Securities \| Upper Limit
Schedule of Held-to-maturity Securities [Line Items]
Mortgage-backed securities contractual maturities (in years)	30 years
Held-to-maturity Securities \| U.S. agency debentures
Schedule of Held-to-maturity Securities [Line Items]
Fair Value	$ 416,189
Amortized Cost	404,571
One Year or Less, Amortized Cost	4,066
One Year or Less, Fair Value	4,117
After One Year to Five Years, Amortized Cost	141,117
After One Year to Five Years, Fair Value	145,321
After Five Years to Ten Years, Amortized Cost	259,388
After Five Years to Ten Years, Fair Value	266,751
After Ten Years, Amortized Cost	0
After Ten Years, Fair Value	0
Held-to-maturity Securities \| Residential mortgage-backed securities \| Agency-issued mortgage-backed securities
Schedule of Held-to-maturity Securities [Line Items]
Fair Value	23,414,311
Amortized Cost	23,525,681
One Year or Less, Amortized Cost	6,319
One Year or Less, Fair Value	6,564
After One Year to Five Years, Amortized Cost	11,663
After One Year to Five Years, Fair Value	11,983
After Five Years to Ten Years, Amortized Cost	494,951
After Five Years to Ten Years, Fair Value	510,743
After Ten Years, Amortized Cost	23,012,748
After Ten Years, Fair Value	22,885,021
Held-to-maturity Securities \| Residential mortgage-backed securities \| Agency-issued collateralized mortgage obligations—fixed rate
Schedule of Held-to-maturity Securities [Line Items]
Fair Value	2,443,238
Amortized Cost	2,425,024
One Year or Less, Amortized Cost	0
One Year or Less, Fair Value	0
After One Year to Five Years, Amortized Cost	5,356
After One Year to Five Years, Fair Value	5,482
After Five Years to Ten Years, Amortized Cost	447,781
After Five Years to Ten Years, Fair Value	458,314
After Ten Years, Amortized Cost	1,971,887
After Ten Years, Fair Value	1,979,442
Held-to-maturity Securities \| Residential mortgage-backed securities \| Agency-issued collateralized mortgage obligations—variable rate
Schedule of Held-to-maturity Securities [Line Items]
Fair Value	129,037
Amortized Cost	128,370
One Year or Less, Amortized Cost	0
One Year or Less, Fair Value	0
After One Year to Five Years, Amortized Cost	0
After One Year to Five Years, Fair Value	0
After Five Years to Ten Years, Amortized Cost	0
After Five Years to Ten Years, Fair Value	0
After Ten Years, Amortized Cost	128,370
After Ten Years, Fair Value	129,037
Held-to-maturity Securities \| Agency-issued commercial mortgage-backed securities
Schedule of Held-to-maturity Securities [Line Items]
Fair Value	10,070,499
Amortized Cost	10,075,165
One Year or Less, Amortized Cost	0
One Year or Less, Fair Value	0
After One Year to Five Years, Amortized Cost	0
After One Year to Five Years, Fair Value	0
After Five Years to Ten Years, Amortized Cost	536,203
After Five Years to Ten Years, Fair Value	542,183
After Ten Years, Amortized Cost	9,538,962
After Ten Years, Fair Value	9,528,316
Held-to-maturity Securities \| Municipal bonds and notes
Schedule of Held-to-maturity Securities [Line Items]
Fair Value	4,662,221
Amortized Cost	4,555,237
One Year or Less, Amortized Cost	48,536
One Year or Less, Fair Value	49,209
After One Year to Five Years, Fair Value	136,075
After Five Years to Ten Years, Fair Value	795,055
After Ten Years, Amortized Cost	3,620,141
After Ten Years, Fair Value	3,681,882
Held-to-maturity Securities \| Corporate bonds
Schedule of Held-to-maturity Securities [Line Items]
Fair Value	51,240
Amortized Cost	51,684
One Year or Less, Amortized Cost	0
One Year or Less, Fair Value	0
After One Year to Five Years, Fair Value	0
After Five Years to Ten Years, Fair Value	51,240
After Ten Years, Amortized Cost	0
After Ten Years, Fair Value	$ 0

Investment Securities - Allowan

Investment Securities - Allowance for Credit Losses for HTM Securities (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020	Dec. 31, 2020
Debt Securities, Held-to-maturity, Allowance for Credit Loss [Line Items]
Beginning Balance / Day One Impact of adopting ASC 326	$ 392
Provision for Credit Losses	720	$ 56
Ending Balance	1,112	230
Accrued interest receivable and other assets \| Held-to-maturity Securities
Debt Securities, Held-to-maturity, Allowance for Credit Loss [Line Items]
Accrued interest receivable	96,100		$ 55,000
Municipal bonds and notes
Debt Securities, Held-to-maturity, Allowance for Credit Loss [Line Items]
Beginning Balance / Day One Impact of adopting ASC 326	392	0
Provision for Credit Losses	139	56
Ending Balance	531	230
Corporate bonds
Debt Securities, Held-to-maturity, Allowance for Credit Loss [Line Items]
Beginning Balance / Day One Impact of adopting ASC 326	0
Provision for Credit Losses	581
Ending Balance	$ 581
Cumulative adjustment for the adoption of amendment
Debt Securities, Held-to-maturity, Allowance for Credit Loss [Line Items]
Beginning Balance / Day One Impact of adopting ASC 326		174
Cumulative adjustment for the adoption of amendment \| Municipal bonds and notes
Debt Securities, Held-to-maturity, Allowance for Credit Loss [Line Items]
Beginning Balance / Day One Impact of adopting ASC 326		$ 174

Investment Securities - Credit

Investment Securities - Credit Quality Indicators (Details) - USD ($) $ in Thousands	Mar. 31, 2021	Dec. 31, 2020
Financing Receivable, Credit Quality Indicator [Line Items]
Held-to-maturity securities, amortized cost	$ 41,165,732	$ 16,592,545
Municipal bonds and notes
Financing Receivable, Credit Quality Indicator [Line Items]
Held-to-maturity securities, amortized cost	4,555,237	3,635,194
Municipal bonds and notes \| Aaa
Financing Receivable, Credit Quality Indicator [Line Items]
Held-to-maturity securities, amortized cost	2,519,992	2,070,311
Municipal bonds and notes \| Aa1
Financing Receivable, Credit Quality Indicator [Line Items]
Held-to-maturity securities, amortized cost	1,329,903	1,144,500
Municipal bonds and notes \| Aa2
Financing Receivable, Credit Quality Indicator [Line Items]
Held-to-maturity securities, amortized cost	568,423	420,383
Municipal bonds and notes \| Aa3
Financing Receivable, Credit Quality Indicator [Line Items]
Held-to-maturity securities, amortized cost	124,724	0
Municipal bonds and notes \| Moody's, A1 Rating
Financing Receivable, Credit Quality Indicator [Line Items]
Held-to-maturity securities, amortized cost	12,195	0
Corporate bonds
Financing Receivable, Credit Quality Indicator [Line Items]
Held-to-maturity securities, amortized cost	51,684	0
Corporate bonds \| Aa2
Financing Receivable, Credit Quality Indicator [Line Items]
Held-to-maturity securities, amortized cost	27,583	0
Corporate bonds \| Aa3
Financing Receivable, Credit Quality Indicator [Line Items]
Held-to-maturity securities, amortized cost	$ 24,101	$ 0

Investment Securities - Compo_3

Investment Securities - Components of Non-marketable and Other Equity Securities (Details) - USD ($) $ in Thousands	Mar. 31, 2021	Dec. 31, 2020
Investment Holdings [Line Items]
Investments in qualified affordable housing projects, net	$ 616,997	$ 616,188
Non-marketable and other equity securities	1,857,761	1,802,235
Fair value accounting \| Consolidated venture capital and private equity fund investments
Investment Holdings [Line Items]
Nonmarketable securities	96,016	88,937
Fair value accounting \| Unconsolidated venture capital and private equity fund investments
Investment Holdings [Line Items]
Nonmarketable securities	178,407	184,886
Fair value accounting \| Equity securities
Investment Holdings [Line Items]
Other equity securities in public companies (fair value accounting)	160,810	280,804
Fair value accounting \| Other investments
Investment Holdings [Line Items]
Nonmarketable securities	200,367	60,975
Equity method accounting \| Consolidated venture capital and private equity fund investments
Investment Holdings [Line Items]
Nonmarketable securities	394,349	362,192
Equity method accounting \| Unconsolidated venture capital and private equity fund investments
Investment Holdings [Line Items]
Nonmarketable securities	394,349	362,192
Equity method accounting \| Debt funds
Investment Holdings [Line Items]
Nonmarketable securities	5,813	5,444
Equity method accounting \| Other investments
Investment Holdings [Line Items]
Nonmarketable securities	$ 205,002	$ 202,809

Investment Securities - Summa_4

Investment Securities - Summary of Venture Capital and Private Equity Fund Investments Held by Consolidated Funds and Percentage Ownership (Details) - USD ($) $ in Thousands	Mar. 31, 2021	Dec. 31, 2020
Fair value accounting \| Consolidated venture capital and private equity fund investments
Investment Holdings [Line Items]
Nonmarketable securities	$ 96,016	$ 88,937

Investment Securities - Non-mar

Investment Securities - Non-marketable and Other Securities Additional Information (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2021USD ($)Investment	Mar. 31, 2020USD ($)	Dec. 31, 2020USD ($)Investment
Investment Holdings [Line Items]
Investments in qualified affordable housing projects, net	$ 616,997		$ 616,188
Other liabilities	372,516		370,208
Tax credits and other tax benefits recognized	28,184	$ 11,759
Amortization expense included in provision for income taxes	16,105	$ 11,471
Fair value accounting \| Unconsolidated venture capital and private equity fund investments
Investment Holdings [Line Items]
Nonmarketable securities	$ 178,407		$ 184,886
Upper Limit
Investment Holdings [Line Items]
Percentage of ownership	5.00%
Non-marketable securities \| Fair value accounting \| Unconsolidated venture capital and private equity fund investments
Investment Holdings [Line Items]
Number of investments \| Investment	161		162

Investment Securities - Changes

Investment Securities - Changes to Carrying Amount of Other Investments without Readily Determinable Fair Value (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2021USD ($)
Investments, Debt and Equity Securities [Abstract]
Carrying value at March 31, 2021	$ 200,367
Year End Adjustments:
Impairment	0
Upward changes for observable prices	13,762
Downward changes for observable prices	(456)
Cumulative Adjustments
Impairment	(947)
Upward changes for observable prices	17,121
Downward changes for observable prices	$ (4,327)

Investment Securities - Carryin

Investment Securities - Carrying Value and Ownership Percentage of Investments (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020	Dec. 31, 2020
Consolidated venture capital and private equity fund investments \| Fair value accounting
Investment Holdings [Line Items]
Nonmarketable securities	$ 96,016		$ 88,937
Consolidated venture capital and private equity fund investments \| Fair value accounting \| Strategic Investors Fund, LP
Investment Holdings [Line Items]
Nonmarketable securities	5,165		4,850
Consolidated venture capital and private equity fund investments \| Fair value accounting \| Capital Preferred Return Fund, LP
Investment Holdings [Line Items]
Nonmarketable securities	48,572		49,574
Consolidated venture capital and private equity fund investments \| Fair value accounting \| Growth Partners, LP
Investment Holdings [Line Items]
Nonmarketable securities	42,279		34,513
Consolidated venture capital and private equity fund investments \| Equity method accounting
Investment Holdings [Line Items]
Nonmarketable securities	394,349		362,192
Consolidated venture capital and private equity fund investments \| Equity method accounting \| Strategic Investors Fund II, LP
Investment Holdings [Line Items]
Nonmarketable securities	4,624		3,705
Consolidated venture capital and private equity fund investments \| Equity method accounting \| Strategic Investors Fund III, LP
Investment Holdings [Line Items]
Nonmarketable securities	21,281		16,110
Consolidated venture capital and private equity fund investments \| Equity method accounting \| Strategic Investors Fund IV, LP
Investment Holdings [Line Items]
Nonmarketable securities	29,681		25,169
Consolidated venture capital and private equity fund investments \| Equity method accounting \| Strategic Investors Fund V funds
Investment Holdings [Line Items]
Nonmarketable securities	60,992		67,052
Consolidated venture capital and private equity fund investments \| Equity method accounting \| CP II, LP
Investment Holdings [Line Items]
Nonmarketable securities	8,954		7,887
Consolidated venture capital and private equity fund investments \| Equity method accounting \| Other venture capital and private equity fund investments
Investment Holdings [Line Items]
Nonmarketable securities	268,817		242,269
Debt funds \| Equity method accounting
Investment Holdings [Line Items]
Nonmarketable securities	5,813		5,444
Debt funds \| Equity method accounting \| Gold Hill Capital 2008, LP
Investment Holdings [Line Items]
Nonmarketable securities	4,380		3,941
Debt funds \| Equity method accounting \| Other debt funds
Investment Holdings [Line Items]
Nonmarketable securities	1,433		1,503
Other investments \| Fair value accounting
Investment Holdings [Line Items]
Nonmarketable securities	200,367		60,975
Other investments \| Equity method accounting
Investment Holdings [Line Items]
Nonmarketable securities	205,002		202,809
Other investments \| Equity method accounting \| SPD Silicon Valley Bank Co., Ltd.
Investment Holdings [Line Items]
Nonmarketable securities	111,838		115,232
Other investments \| Equity method accounting \| Other investments
Investment Holdings [Line Items]
Nonmarketable securities	$ 93,164		$ 87,577
Non-marketable securities \| Consolidated venture capital and private equity fund investments \| Fair value accounting \| Strategic Investors Fund, LP
Investment Holdings [Line Items]
Percentage of ownership	12.60%	12.60%
Non-marketable securities \| Consolidated venture capital and private equity fund investments \| Fair value accounting \| Capital Preferred Return Fund, LP
Investment Holdings [Line Items]
Percentage of ownership	20.00%	20.00%
Non-marketable securities \| Consolidated venture capital and private equity fund investments \| Fair value accounting \| Growth Partners, LP
Investment Holdings [Line Items]
Percentage of ownership	33.00%	33.00%
Non-marketable securities \| Consolidated venture capital and private equity fund investments \| Equity method accounting \| Strategic Investors Fund II, LP
Investment Holdings [Line Items]
Percentage of ownership	8.60%	8.60%
Non-marketable securities \| Consolidated venture capital and private equity fund investments \| Equity method accounting \| Strategic Investors Fund III, LP
Investment Holdings [Line Items]
Percentage of ownership	5.90%	5.90%
Non-marketable securities \| Consolidated venture capital and private equity fund investments \| Equity method accounting \| Strategic Investors Fund IV, LP
Investment Holdings [Line Items]
Percentage of ownership	5.00%	5.00%
Non-marketable securities \| Consolidated venture capital and private equity fund investments \| Equity method accounting \| CP II, LP
Investment Holdings [Line Items]
Percentage of ownership	5.10%	5.10%
Non-marketable securities \| Consolidated venture capital and private equity fund investments \| Equity method accounting \| CP II, LP \| Direct ownership interest
Investment Holdings [Line Items]
Percentage of ownership	1.30%
Non-marketable securities \| Consolidated venture capital and private equity fund investments \| Equity method accounting \| CP II, LP \| Indirect ownership interest
Investment Holdings [Line Items]
Percentage of ownership	3.80%
Non-marketable securities \| Debt funds \| Equity method accounting \| Direct ownership interest
Investment Holdings [Line Items]
Percentage of ownership	11.50%
Non-marketable securities \| Debt funds \| Equity method accounting \| Indirect ownership interest
Investment Holdings [Line Items]
Percentage of ownership	4.00%
Non-marketable securities \| Debt funds \| Equity method accounting \| Gold Hill Capital 2008, LP
Investment Holdings [Line Items]
Percentage of ownership	15.50%	15.50%
Non-marketable securities \| Other investments \| Equity method accounting \| SPD Silicon Valley Bank Co., Ltd.
Investment Holdings [Line Items]
Percentage of ownership	50.00%	50.00%

Investment Securities - Net Gai

Investment Securities - Net Gains on Non-marketable and Other Equity Securities (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Gain (Loss) on Securities [Line Items]
Total net gains on non-marketable and other equity securities	$ 167,078	$ (15,110)
Non-marketable securities
Gain (Loss) on Securities [Line Items]
Less: realized net gains (losses) on sales of non-marketable and other equity securities	69,775	(49)
Net gains (losses) on non-marketable and other equity securities still held	97,303	(15,061)
Non-marketable securities \| Fair value accounting \| Consolidated venture capital and private equity fund investments
Gain (Loss) on Securities [Line Items]
Total net gains on non-marketable and other equity securities	17,211	3,113
Non-marketable securities \| Fair value accounting \| Unconsolidated venture capital and private equity fund investments
Gain (Loss) on Securities [Line Items]
Total net gains on non-marketable and other equity securities	12,510	1,252
Non-marketable securities \| Fair value accounting \| Other investments
Gain (Loss) on Securities [Line Items]
Total net gains on non-marketable and other equity securities	13,769	(2,943)
Non-marketable securities \| Equity method accounting \| Consolidated venture capital and private equity fund investments
Gain (Loss) on Securities [Line Items]
Total net gains on non-marketable and other equity securities	45,385	(8,046)
Non-marketable securities \| Equity method accounting \| Debt funds
Gain (Loss) on Securities [Line Items]
Total net gains on non-marketable and other equity securities	414	(362)
Non-marketable securities \| Equity method accounting \| Other investments
Gain (Loss) on Securities [Line Items]
Total net gains on non-marketable and other equity securities	228	(620)
Other equity securities \| Fair value accounting
Gain (Loss) on Securities [Line Items]
Total net gains on non-marketable and other equity securities	$ 77,561	$ (7,504)

Loans, Allowance for Loan Los_3

Loans, Allowance for Loan Losses and Allowance for Unfunded Credit Commitments - Composition of Loans, Net of Unearned Income (Details) - USD ($) $ in Thousands	Mar. 31, 2021	Dec. 31, 2020	Mar. 31, 2020	Dec. 31, 2019
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, amortized cost	$ 47,675,166	$ 45,181,488
Allowance for credit losses	(391,751)	(447,765)	$ (548,963)	$ (304,924)
Net loans	47,283,415	44,733,723
Global fund banking
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, amortized cost	27,306,926	25,543,198
Investor dependent
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, amortized cost	5,167,069	4,971,818
Allowance for credit losses	(166,933)	(213,357)	(275,701)	(82,370)
Investor dependent \| Early stage
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, amortized cost	1,523,208	1,485,866
Allowance for credit losses	(62,247)	(86,674)	(127,189)	(26,245)
Investor dependent \| Mid stage
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, amortized cost	1,588,185	1,564,870
Investor dependent \| Later stage
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, amortized cost	2,055,676	1,921,082
Cash flow dependent
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, amortized cost	4,944,176	4,934,533
Cash flow dependent \| Sponsor led buyout
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, amortized cost	1,984,567	1,989,173
Cash flow dependent \| Other
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, amortized cost	2,959,609	2,945,360
SVB Private Bank
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, amortized cost	5,063,827	4,901,056
Allowance for credit losses	(45,064)	(53,629)	$ (87,795)	$ (21,551)
Balance sheet dependent
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, amortized cost	2,501,524	2,191,023
Premium wine
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, amortized cost	1,040,223	1,052,643
Other
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, amortized cost	45,688	27,687
SBA loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, amortized cost	1,605,733	1,559,530
Allowance for credit losses	$ 0	$ (1,910)

Loans, Allowance for Loan Los_4

Loans, Allowance for Loan Losses and Allowance for Unfunded Credit Commitments - Composition of Loans, Net of Unearned Income (Additional Information) (Details) - USD ($) $ in Thousands	Mar. 31, 2021	Dec. 31, 2020
Accounts, Notes, Loans and Financing Receivable [Line Items]
Unearned income on loans	$ 248,000	$ 226,000
Loans, at amortized cost	47,675,166	45,181,488
Credit cards
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, at amortized cost	461,000	400,000
Construction loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, at amortized cost	108,000	118,000
SVB Private Bank
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, at amortized cost	5,063,827	4,901,056
Premium wine
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, at amortized cost	1,040,223	1,052,643
Other
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, at amortized cost	45,688	27,687
Real estate secured loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, at amortized cost	5,062,888	4,939,569
Real estate secured loans \| SVB Private Bank
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, at amortized cost	4,187,841	4,058,679
Real estate secured loans \| SVB Private Bank \| Loans for personal residence
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, at amortized cost	3,538,077	3,392,237
Real estate secured loans \| SVB Private Bank \| Loans to eligible employees
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, at amortized cost	458,736	481,098
Real estate secured loans \| SVB Private Bank \| Home equity lines of credit
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, at amortized cost	45,033	42,449
Real estate secured loans \| SVB Private Bank \| Other
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, at amortized cost	145,995	142,895
Real estate secured loans \| Premium wine
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, at amortized cost	824,463	824,008
Real estate secured loans \| Other
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, at amortized cost	$ 50,584	$ 56,882

Loans, Allowance for Loan Los_5

Loans, Allowance for Loan Losses and Allowance for Unfunded Credit Commitments - Credit Quality Indicators, Broken out by Risk-Based Segments (Details) - USD ($) $ in Thousands	Mar. 31, 2021	Dec. 31, 2020
Financing Receivable, Credit Quality Indicator [Line Items]
Loans, at amortized cost	$ 47,675,166	$ 45,181,488
Loans, at gross basis		45,181,488
Nonperforming (Nonaccrual)
Financing Receivable, Credit Quality Indicator [Line Items]
Loans, at amortized cost	90,247
Loans, at gross basis		104,244
Pass
Financing Receivable, Credit Quality Indicator [Line Items]
Loans, at amortized cost	46,348,701
Loans, at gross basis		43,825,846
Criticized
Financing Receivable, Credit Quality Indicator [Line Items]
Loans, at amortized cost	1,236,218
Loans, at gross basis		1,251,398
Global fund banking
Financing Receivable, Credit Quality Indicator [Line Items]
Loans, at amortized cost	27,306,926	25,543,198
Loans, at gross basis		25,543,198
Global fund banking \| Nonperforming (Nonaccrual)
Financing Receivable, Credit Quality Indicator [Line Items]
Loans, at amortized cost	18	11
Loans, at gross basis		11
Global fund banking \| Pass
Financing Receivable, Credit Quality Indicator [Line Items]
Loans, at amortized cost	27,292,491	25,537,354
Loans, at gross basis		25,537,354
Global fund banking \| Criticized
Financing Receivable, Credit Quality Indicator [Line Items]
Loans, at amortized cost	14,417	5,833
Loans, at gross basis		5,833
Investor dependent
Financing Receivable, Credit Quality Indicator [Line Items]
Loans, at amortized cost	5,167,069	4,971,818
Loans, at gross basis		4,971,818
Investor dependent \| Early stage
Financing Receivable, Credit Quality Indicator [Line Items]
Loans, at amortized cost	1,523,208	1,485,866
Loans, at gross basis		1,485,866
Investor dependent \| Mid stage
Financing Receivable, Credit Quality Indicator [Line Items]
Loans, at amortized cost	1,588,185	1,564,870
Loans, at gross basis		1,564,870
Investor dependent \| Later stage
Financing Receivable, Credit Quality Indicator [Line Items]
Loans, at amortized cost	2,055,676	1,921,082
Loans, at gross basis		1,921,082
Investor dependent \| Nonperforming (Nonaccrual)
Financing Receivable, Credit Quality Indicator [Line Items]
Loans, at amortized cost	35,169
Loans, at gross basis		51,053
Investor dependent \| Nonperforming (Nonaccrual) \| Early stage
Financing Receivable, Credit Quality Indicator [Line Items]
Loans, at amortized cost	7,766	18,340
Loans, at gross basis		18,340
Investor dependent \| Nonperforming (Nonaccrual) \| Mid stage
Financing Receivable, Credit Quality Indicator [Line Items]
Loans, at amortized cost	0	4,056
Loans, at gross basis		4,056
Investor dependent \| Nonperforming (Nonaccrual) \| Later stage
Financing Receivable, Credit Quality Indicator [Line Items]
Loans, at amortized cost	27,403	28,657
Loans, at gross basis		28,657
Investor dependent \| Pass
Financing Receivable, Credit Quality Indicator [Line Items]
Loans, at amortized cost	4,717,953
Loans, at gross basis		4,454,347
Investor dependent \| Pass \| Early stage
Financing Receivable, Credit Quality Indicator [Line Items]
Loans, at amortized cost	1,303,581	1,288,897
Loans, at gross basis		1,288,897
Investor dependent \| Pass \| Mid stage
Financing Receivable, Credit Quality Indicator [Line Items]
Loans, at amortized cost	1,492,157	1,420,788
Loans, at gross basis		1,420,788
Investor dependent \| Pass \| Later stage
Financing Receivable, Credit Quality Indicator [Line Items]
Loans, at amortized cost	1,922,215	1,744,662
Loans, at gross basis		1,744,662
Investor dependent \| Criticized
Financing Receivable, Credit Quality Indicator [Line Items]
Loans, at amortized cost	413,947
Loans, at gross basis		466,418
Investor dependent \| Criticized \| Early stage
Financing Receivable, Credit Quality Indicator [Line Items]
Loans, at amortized cost	211,861	178,629
Loans, at gross basis		178,629
Investor dependent \| Criticized \| Mid stage
Financing Receivable, Credit Quality Indicator [Line Items]
Loans, at amortized cost	96,028	140,026
Loans, at gross basis		140,026
Investor dependent \| Criticized \| Later stage
Financing Receivable, Credit Quality Indicator [Line Items]
Loans, at amortized cost	106,058	147,763
Loans, at gross basis		147,763
Cash flow dependent
Financing Receivable, Credit Quality Indicator [Line Items]
Loans, at amortized cost	4,944,176	4,934,533
Loans, at gross basis		4,934,533
Cash flow dependent \| Sponsor led buyout
Financing Receivable, Credit Quality Indicator [Line Items]
Loans, at amortized cost	1,984,567	1,989,173
Loans, at gross basis		1,989,173
Cash flow dependent \| Other
Financing Receivable, Credit Quality Indicator [Line Items]
Loans, at amortized cost	2,959,609	2,945,360
Loans, at gross basis		2,945,360
Cash flow dependent \| Nonperforming (Nonaccrual)
Financing Receivable, Credit Quality Indicator [Line Items]
Loans, at amortized cost	45,476
Loans, at gross basis		46,000
Cash flow dependent \| Nonperforming (Nonaccrual) \| Sponsor led buyout
Financing Receivable, Credit Quality Indicator [Line Items]
Loans, at amortized cost	39,848	39,996
Loans, at gross basis		39,996
Cash flow dependent \| Nonperforming (Nonaccrual) \| Other
Financing Receivable, Credit Quality Indicator [Line Items]
Loans, at amortized cost	5,628	6,004
Loans, at gross basis		6,004
Cash flow dependent \| Pass
Financing Receivable, Credit Quality Indicator [Line Items]
Loans, at amortized cost	4,524,529
Loans, at gross basis		4,473,343
Cash flow dependent \| Pass \| Sponsor led buyout
Financing Receivable, Credit Quality Indicator [Line Items]
Loans, at amortized cost	1,844,415	1,795,972
Loans, at gross basis		1,795,972
Cash flow dependent \| Pass \| Other
Financing Receivable, Credit Quality Indicator [Line Items]
Loans, at amortized cost	2,680,114	2,677,371
Loans, at gross basis		2,677,371
Cash flow dependent \| Criticized
Financing Receivable, Credit Quality Indicator [Line Items]
Loans, at amortized cost	374,171
Loans, at gross basis		415,190
Cash flow dependent \| Criticized \| Sponsor led buyout
Financing Receivable, Credit Quality Indicator [Line Items]
Loans, at amortized cost	100,304	153,205
Loans, at gross basis		153,205
Cash flow dependent \| Criticized \| Other
Financing Receivable, Credit Quality Indicator [Line Items]
Loans, at amortized cost	273,867	261,985
Loans, at gross basis		261,985
SVB Private Bank
Financing Receivable, Credit Quality Indicator [Line Items]
Loans, at amortized cost	5,063,827	4,901,056
Loans, at gross basis		4,901,056
SVB Private Bank \| Nonperforming (Nonaccrual)
Financing Receivable, Credit Quality Indicator [Line Items]
Loans, at amortized cost	8,445	6,152
Loans, at gross basis		6,152
SVB Private Bank \| Pass
Financing Receivable, Credit Quality Indicator [Line Items]
Loans, at amortized cost	5,024,735	4,862,176
Loans, at gross basis		4,862,176
SVB Private Bank \| Criticized
Financing Receivable, Credit Quality Indicator [Line Items]
Loans, at amortized cost	30,647	32,728
Loans, at gross basis		32,728
Balance sheet dependent
Financing Receivable, Credit Quality Indicator [Line Items]
Loans, at amortized cost	2,501,524	2,191,023
Loans, at gross basis		2,191,023
Balance sheet dependent \| Nonperforming (Nonaccrual)
Financing Receivable, Credit Quality Indicator [Line Items]
Loans, at amortized cost	0	0
Loans, at gross basis		0
Balance sheet dependent \| Pass
Financing Receivable, Credit Quality Indicator [Line Items]
Loans, at amortized cost	2,373,152	2,104,645
Loans, at gross basis		2,104,645
Balance sheet dependent \| Criticized
Financing Receivable, Credit Quality Indicator [Line Items]
Loans, at amortized cost	128,372	86,378
Loans, at gross basis		86,378
Premium wine
Financing Receivable, Credit Quality Indicator [Line Items]
Loans, at amortized cost	1,040,223	1,052,643
Loans, at gross basis		1,052,643
Premium wine \| Nonperforming (Nonaccrual)
Financing Receivable, Credit Quality Indicator [Line Items]
Loans, at amortized cost	1,139	998
Loans, at gross basis		998
Premium wine \| Pass
Financing Receivable, Credit Quality Indicator [Line Items]
Loans, at amortized cost	903,583	910,397
Loans, at gross basis		910,397
Premium wine \| Criticized
Financing Receivable, Credit Quality Indicator [Line Items]
Loans, at amortized cost	135,501	141,248
Loans, at gross basis		141,248
Other
Financing Receivable, Credit Quality Indicator [Line Items]
Loans, at amortized cost	45,688	27,687
Loans, at gross basis		27,687
Other \| Nonperforming (Nonaccrual)
Financing Receivable, Credit Quality Indicator [Line Items]
Loans, at amortized cost	0	30
Loans, at gross basis		30
Other \| Pass
Financing Receivable, Credit Quality Indicator [Line Items]
Loans, at amortized cost	45,653	27,594
Loans, at gross basis		27,594
Other \| Criticized
Financing Receivable, Credit Quality Indicator [Line Items]
Loans, at amortized cost	35	63
Loans, at gross basis		63
SBA loans
Financing Receivable, Credit Quality Indicator [Line Items]
Loans, at amortized cost	1,605,733	1,559,530
SBA loans \| Nonperforming (Nonaccrual)
Financing Receivable, Credit Quality Indicator [Line Items]
Loans, at amortized cost	0	0
SBA loans \| Pass
Financing Receivable, Credit Quality Indicator [Line Items]
Loans, at amortized cost	1,466,605	1,455,990
SBA loans \| Criticized
Financing Receivable, Credit Quality Indicator [Line Items]
Loans, at amortized cost	$ 139,128	$ 103,540

Loans, Allowance for Loan Los_6

Loans, Allowance for Loan Losses and Allowance for Unfunded Credit Commitments - Credit Quality Indicators, Broken out by Risk-Based Segments and Vintage Year (Details) - USD ($) $ in Thousands	Mar. 31, 2021	Dec. 31, 2020
Financing Receivable, Credit Quality Indicator [Line Items]
2021	$ 2,889,750	$ 9,153,860
2020	8,169,000	4,008,276
2019	3,413,150	1,861,154
2018	1,703,081	934,386
2017	807,970	530,328
Prior	1,006,985	598,525
Revolving Loans	29,649,783	28,040,704
Revolving Loans Converted to Term Loans	50,938	54,255
Unallocated	(15,491)
Loans, amortized cost	47,675,166	45,181,488
Nonperforming (Nonaccrual)
Financing Receivable, Credit Quality Indicator [Line Items]
Loans, amortized cost	90,247
Pass
Financing Receivable, Credit Quality Indicator [Line Items]
Loans, amortized cost	46,348,701
Criticized
Financing Receivable, Credit Quality Indicator [Line Items]
Loans, amortized cost	1,236,218
Global fund banking
Financing Receivable, Credit Quality Indicator [Line Items]
2021	267,501	439,497
2020	263,243	48,305
2019	44,640	68,491
2018	59,520	22,878
2017	21,416	2,389
Prior	7,773	5,999
Revolving Loans	26,638,069	24,947,838
Revolving Loans Converted to Term Loans	4,764	7,801
Unallocated	0
Loans, amortized cost	27,306,926	25,543,198
Global fund banking \| Nonperforming (Nonaccrual)
Financing Receivable, Credit Quality Indicator [Line Items]
2021	0	3
2020	0	8
2019	8	0
2018	0	0
2017	0	0
Prior	0	0
Revolving Loans	10	0
Revolving Loans Converted to Term Loans	0	0
Unallocated	0
Loans, amortized cost	18	11
Global fund banking \| Pass
Financing Receivable, Credit Quality Indicator [Line Items]
2021	267,498	439,494
2020	263,243	48,297
2019	44,632	68,491
2018	59,520	22,878
2017	21,416	2,389
Prior	7,773	5,999
Revolving Loans	26,627,712	24,947,428
Revolving Loans Converted to Term Loans	697	2,378
Unallocated	0
Loans, amortized cost	27,292,491	25,537,354
Global fund banking \| Criticized
Financing Receivable, Credit Quality Indicator [Line Items]
2021	3	0
2020	0	0
2019	0	0
2018	0	0
2017	0	0
Prior	0	0
Revolving Loans	10,347	410
Revolving Loans Converted to Term Loans	4,067	5,423
Unallocated	0
Loans, amortized cost	14,417	5,833
Investor dependent
Financing Receivable, Credit Quality Indicator [Line Items]
2021	724,210	2,544,507
2020	2,413,278	1,253,486
2019	1,007,898	528,189
2018	440,372	115,532
2017	59,958	9,888
Prior	17,151	17,072
Revolving Loans	496,161	495,047
Revolving Loans Converted to Term Loans	8,041	8,097
Unallocated	0
Loans, amortized cost	5,167,069	4,971,818
Investor dependent \| Nonperforming (Nonaccrual)
Financing Receivable, Credit Quality Indicator [Line Items]
Loans, amortized cost	35,169
Investor dependent \| Pass
Financing Receivable, Credit Quality Indicator [Line Items]
Loans, amortized cost	4,717,953
Investor dependent \| Criticized
Financing Receivable, Credit Quality Indicator [Line Items]
Loans, amortized cost	413,947
Investor dependent \| Early stage
Financing Receivable, Credit Quality Indicator [Line Items]
2021	203,198	716,333
2020	667,047	452,038
2019	368,452	152,458
2018	122,515	42,808
2017	22,288	4,791
Prior	2,914	739
Revolving Loans	136,234	116,082
Revolving Loans Converted to Term Loans	560	617
Unallocated	0
Loans, amortized cost	1,523,208	1,485,866
Investor dependent \| Early stage \| Nonperforming (Nonaccrual)
Financing Receivable, Credit Quality Indicator [Line Items]
2021	211	2,438
2020	454	9,354
2019	3,037	5,368
2018	3,124	441
2017		0
Prior	0	0
Revolving Loans	940	739
Revolving Loans Converted to Term Loans	0	0
Unallocated	0
Loans, amortized cost	7,766	18,340
Investor dependent \| Early stage \| Pass
Financing Receivable, Credit Quality Indicator [Line Items]
2021	197,867	667,006
2020	584,281	370,189
2019	296,776	120,920
2018	95,495	32,163
2017	16,114	1,234
Prior	1,122	405
Revolving Loans	111,366	96,363
Revolving Loans Converted to Term Loans	560	617
Unallocated	0
Loans, amortized cost	1,303,581	1,288,897
Investor dependent \| Early stage \| Criticized
Financing Receivable, Credit Quality Indicator [Line Items]
2021	5,120	46,889
2020	82,312	72,495
2019	68,639	26,170
2018	23,896	10,204
2017	6,174	3,557
Prior	1,792	334
Revolving Loans	23,928	18,980
Revolving Loans Converted to Term Loans	0	0
Unallocated	0
Loans, amortized cost	211,861	178,629
Investor dependent \| Mid stage
Financing Receivable, Credit Quality Indicator [Line Items]
2021	258,309	883,729
2020	752,054	350,813
2019	271,501	171,829
2018	140,071	33,615
2017	23,654	5,086
Prior	7,752	6,699
Revolving Loans	132,349	110,604
Revolving Loans Converted to Term Loans	2,495	2,495
Unallocated	0
Loans, amortized cost	1,588,185	1,564,870
Investor dependent \| Mid stage \| Nonperforming (Nonaccrual)
Financing Receivable, Credit Quality Indicator [Line Items]
2021	0	10
2020	0	614
2019	0	218
2018	0	2,539
2017	0	0
Prior	0	675
Revolving Loans	0	0
Revolving Loans Converted to Term Loans	0	0
Unallocated	0
Loans, amortized cost	0	4,056
Investor dependent \| Mid stage \| Pass
Financing Receivable, Credit Quality Indicator [Line Items]
2021	253,799	840,431
2020	708,740	301,905
2019	253,486	145,588
2018	129,298	22,834
2017	19,909	5,086
Prior	2,754	1,026
Revolving Loans	121,676	101,423
Revolving Loans Converted to Term Loans	2,495	2,495
Unallocated	0
Loans, amortized cost	1,492,157	1,420,788
Investor dependent \| Mid stage \| Criticized
Financing Receivable, Credit Quality Indicator [Line Items]
2021	4,510	43,288
2020	43,314	48,294
2019	18,015	26,023
2018	10,773	8,242
2017	3,745	0
Prior	4,998	4,998
Revolving Loans	10,673	9,181
Revolving Loans Converted to Term Loans	0	0
Unallocated	0
Loans, amortized cost	96,028	140,026
Investor dependent \| Later stage
Financing Receivable, Credit Quality Indicator [Line Items]
2021	262,703	944,445
2020	994,177	450,635
2019	367,945	203,902
2018	177,786	39,109
2017	14,016	11
Prior	6,485	9,634
Revolving Loans	227,578	268,361
Revolving Loans Converted to Term Loans	4,986	4,985
Unallocated	0
Loans, amortized cost	2,055,676	1,921,082
Investor dependent \| Later stage \| Nonperforming (Nonaccrual)
Financing Receivable, Credit Quality Indicator [Line Items]
2021	0	16,691
2020	15,997	1,797
2019	1,676	3,522
2018	3,280	0
2017	0	0
Prior	0	0
Revolving Loans	6,450	6,647
Revolving Loans Converted to Term Loans	0	0
Unallocated	0
Loans, amortized cost	27,403	28,657
Investor dependent \| Later stage \| Pass
Financing Receivable, Credit Quality Indicator [Line Items]
2021	262,703	905,468
2020	942,741	393,584
2019	338,516	170,128
2018	165,935	37,967
2017	14,016	11
Prior	5,593	8,087
Revolving Loans	187,725	224,432
Revolving Loans Converted to Term Loans	4,986	4,985
Unallocated	0
Loans, amortized cost	1,922,215	1,744,662
Investor dependent \| Later stage \| Criticized
Financing Receivable, Credit Quality Indicator [Line Items]
2021	0	22,286
2020	35,439	55,254
2019	27,753	30,252
2018	8,571	1,142
2017	0	0
Prior	892	1,547
Revolving Loans	33,403	37,282
Revolving Loans Converted to Term Loans	0	0
Unallocated	0
Loans, amortized cost	106,058	147,763
Cash flow dependent
Financing Receivable, Credit Quality Indicator [Line Items]
2021	764,788	1,690,801
2020	1,451,828	1,114,850
2019	853,685	546,307
2018	527,813	333,316
2017	280,299	88,711
Prior	51,344	101
Revolving Loans	1,014,419	1,160,447
Revolving Loans Converted to Term Loans	0	0
Unallocated	0
Loans, amortized cost	4,944,176	4,934,533
Cash flow dependent \| Nonperforming (Nonaccrual)
Financing Receivable, Credit Quality Indicator [Line Items]
Loans, amortized cost	45,476
Cash flow dependent \| Pass
Financing Receivable, Credit Quality Indicator [Line Items]
Loans, amortized cost	4,524,529
Cash flow dependent \| Criticized
Financing Receivable, Credit Quality Indicator [Line Items]
Loans, amortized cost	374,171
Cash flow dependent \| Sponsor led buyout
Financing Receivable, Credit Quality Indicator [Line Items]
2021	310,562	792,013
2020	644,015	533,754
2019	449,334	328,807
2018	297,329	195,604
2017	165,291	49,903
Prior	49,398	0
Revolving Loans	68,638	89,092
Revolving Loans Converted to Term Loans	0	0
Unallocated	0
Loans, amortized cost	1,984,567	1,989,173
Cash flow dependent \| Sponsor led buyout \| Nonperforming (Nonaccrual)
Financing Receivable, Credit Quality Indicator [Line Items]
2021	0	33
2020	32	11,869
2019	11,838	16,068
2018	15,998	7,177
2017	7,158	0
Prior	0	0
Revolving Loans	4,822	4,849
Revolving Loans Converted to Term Loans	0	0
Unallocated	0
Loans, amortized cost	39,848	39,996
Cash flow dependent \| Sponsor led buyout \| Pass
Financing Receivable, Credit Quality Indicator [Line Items]
2021	310,562	791,480
2020	643,432	451,561
2019	406,962	273,719
2018	242,303	166,820
2017	147,618	36,900
Prior	36,269	0
Revolving Loans	57,269	75,492
Revolving Loans Converted to Term Loans	0	0
Unallocated	0
Loans, amortized cost	1,844,415	1,795,972
Cash flow dependent \| Sponsor led buyout \| Criticized
Financing Receivable, Credit Quality Indicator [Line Items]
2021	0	500
2020	551	70,324
2019	30,534	39,020
2018	39,028	21,607
2017	10,515	13,003
Prior	13,129	0
Revolving Loans	6,547	8,751
Revolving Loans Converted to Term Loans	0	0
Unallocated	0
Loans, amortized cost	100,304	153,205
Cash flow dependent \| Other
Financing Receivable, Credit Quality Indicator [Line Items]
2021	454,226	898,788
2020	807,813	581,096
2019	404,351	217,500
2018	230,484	137,712
2017	115,008	38,808
Prior	1,946	101
Revolving Loans	945,781	1,071,355
Revolving Loans Converted to Term Loans	0	0
Unallocated	0
Loans, amortized cost	2,959,609	2,945,360
Cash flow dependent \| Other \| Nonperforming (Nonaccrual)
Financing Receivable, Credit Quality Indicator [Line Items]
2021	0	0
2020	0	0
2019	0	4,552
2018	4,418	0
2017	0	0
Prior	0	0
Revolving Loans	1,210	1,452
Revolving Loans Converted to Term Loans	0	0
Unallocated	0
Loans, amortized cost	5,628	6,004
Cash flow dependent \| Other \| Pass
Financing Receivable, Credit Quality Indicator [Line Items]
2021	454,225	879,542
2020	791,748	513,242
2019	343,877	179,169
2018	158,992	133,235
2017	111,051	38,808
Prior	1,946	101
Revolving Loans	818,275	933,274
Revolving Loans Converted to Term Loans	0	0
Unallocated	0
Loans, amortized cost	2,680,114	2,677,371
Cash flow dependent \| Other \| Criticized
Financing Receivable, Credit Quality Indicator [Line Items]
2021	1	19,246
2020	16,065	67,854
2019	60,474	33,779
2018	67,074	4,477
2017	3,957	0
Prior	0	0
Revolving Loans	126,296	136,629
Revolving Loans Converted to Term Loans	0	0
Unallocated	0
Loans, amortized cost	273,867	261,985
SVB Private Bank
Financing Receivable, Credit Quality Indicator [Line Items]
2021	412,282	1,881,664
2020	1,824,944	1,163,451
2019	1,073,284	402,034
2018	373,838	354,059
2017	322,813	299,971
Prior	657,120	415,313
Revolving Loans	398,915	383,904
Revolving Loans Converted to Term Loans	631	660
Unallocated	0
Loans, amortized cost	5,063,827	4,901,056
SVB Private Bank \| Nonperforming (Nonaccrual)
Financing Receivable, Credit Quality Indicator [Line Items]
2021	0	0
2020	0	563
2019	0	3,197
2018	6,079	0
2017	0	0
Prior	1,657	1,679
Revolving Loans	709	713
Revolving Loans Converted to Term Loans	0	0
Unallocated	0
Loans, amortized cost	8,445	6,152
SVB Private Bank \| Pass
Financing Receivable, Credit Quality Indicator [Line Items]
2021	412,282	1,878,184
2020	1,821,765	1,152,903
2019	1,064,886	394,351
2018	364,246	352,857
2017	319,602	294,870
Prior	646,021	405,909
Revolving Loans	395,302	382,442
Revolving Loans Converted to Term Loans	631	660
Unallocated	0
Loans, amortized cost	5,024,735	4,862,176
SVB Private Bank \| Criticized
Financing Receivable, Credit Quality Indicator [Line Items]
2021	0	3,480
2020	3,179	9,985
2019	8,398	4,486
2018	3,513	1,202
2017	3,211	5,101
Prior	9,442	7,725
Revolving Loans	2,904	749
Revolving Loans Converted to Term Loans	0	0
Unallocated	0
Loans, amortized cost	30,647	32,728
Balance sheet dependent
Financing Receivable, Credit Quality Indicator [Line Items]
2021	263,669	893,500
2020	891,433	193,873
2019	197,815	198,703
2018	181,241	19,213
2017	33,922	0
Prior	0	0
Revolving Loans	931,940	884,229
Revolving Loans Converted to Term Loans	1,504	1,505
Unallocated	0
Loans, amortized cost	2,501,524	2,191,023
Balance sheet dependent \| Nonperforming (Nonaccrual)
Financing Receivable, Credit Quality Indicator [Line Items]
2021	0	0
2020	0	0
2019	0	0
2018	0	0
2017	0	0
Prior	0	0
Revolving Loans	0	0
Revolving Loans Converted to Term Loans	0	0
Unallocated	0
Loans, amortized cost	0	0
Balance sheet dependent \| Pass
Financing Receivable, Credit Quality Indicator [Line Items]
2021	263,600	837,613
2020	832,914	190,140
2019	155,424	198,532
2018	181,241	19,213
2017	33,922	0
Prior	0	0
Revolving Loans	904,547	857,642
Revolving Loans Converted to Term Loans	1,504	1,505
Unallocated	0
Loans, amortized cost	2,373,152	2,104,645
Balance sheet dependent \| Criticized
Financing Receivable, Credit Quality Indicator [Line Items]
2021	69	55,887
2020	58,519	3,733
2019	42,391	171
2018	0	0
2017	0	0
Prior	0	0
Revolving Loans	27,393	26,587
Revolving Loans Converted to Term Loans	0	0
Unallocated	0
Loans, amortized cost	128,372	86,378
Premium wine
Financing Receivable, Credit Quality Indicator [Line Items]
2021	22,027	144,358
2020	143,001	218,030
2019	216,649	106,520
2018	103,655	89,388
2017	88,084	129,369
Prior	273,596	159,607
Revolving Loans	157,213	169,179
Revolving Loans Converted to Term Loans	35,998	36,192
Unallocated	0
Loans, amortized cost	1,040,223	1,052,643
Premium wine \| Nonperforming (Nonaccrual)
Financing Receivable, Credit Quality Indicator [Line Items]
2021	0	0
2020	42	0
2019	0	0
2018	0	0
2017	0	998
Prior	998	0
Revolving Loans	99	0
Revolving Loans Converted to Term Loans	0	0
Unallocated	0
Loans, amortized cost	1,139	998
Premium wine \| Pass
Financing Receivable, Credit Quality Indicator [Line Items]
2021	20,393	126,476
2020	129,671	193,744
2019	193,793	70,783
2018	87,586	79,088
2017	77,877	114,812
Prior	225,080	153,841
Revolving Loans	133,185	135,461
Revolving Loans Converted to Term Loans	35,998	36,192
Unallocated	0
Loans, amortized cost	903,583	910,397
Premium wine \| Criticized
Financing Receivable, Credit Quality Indicator [Line Items]
2021	1,634	17,882
2020	13,288	24,286
2019	22,856	35,737
2018	16,069	10,300
2017	10,207	13,559
Prior	47,518	5,766
Revolving Loans	23,929	33,718
Revolving Loans Converted to Term Loans	0	0
Unallocated	0
Loans, amortized cost	135,501	141,248
Other
Financing Receivable, Credit Quality Indicator [Line Items]
2021	21	3
2020	10,792	16,281
2019	19,179	10,910
2018	16,642	0
2017	1,478	0
Prior	1	433
Revolving Loans	13,066	60
Revolving Loans Converted to Term Loans	0	0
Unallocated	(15,491)
Loans, amortized cost	45,688	27,687
Other \| Nonperforming (Nonaccrual)
Financing Receivable, Credit Quality Indicator [Line Items]
2021	0	0
2020	0	30
2019	0	0
2018	0	0
2017	0	0
Prior	0	0
Revolving Loans	0	0
Revolving Loans Converted to Term Loans	0	0
Unallocated	0
Loans, amortized cost	0	30
Other \| Pass
Financing Receivable, Credit Quality Indicator [Line Items]
2021	21	0
2020	10,792	16,251
2019	19,179	10,910
2018	16,642	0
2017	1,478	0
Prior	1	433
Revolving Loans	13,031	0
Revolving Loans Converted to Term Loans	0	0
Unallocated	(15,491)
Loans, amortized cost	45,653	27,594
Other \| Criticized
Financing Receivable, Credit Quality Indicator [Line Items]
2021	0	3
2020	0	0
2019	0	0
2018	0	0
2017	0	0
Prior	0	0
Revolving Loans	35	60
Revolving Loans Converted to Term Loans	0	0
Unallocated	0
Loans, amortized cost	35	63
SBA loans
Financing Receivable, Credit Quality Indicator [Line Items]
2021	435,252	1,559,530
2020	1,170,481	0
2019	0	0
2018	0	0
2017	0	0
Prior	0	0
Revolving Loans	0	0
Revolving Loans Converted to Term Loans	0	0
Unallocated	0
Loans, amortized cost	1,605,733	1,559,530
SBA loans \| Nonperforming (Nonaccrual)
Financing Receivable, Credit Quality Indicator [Line Items]
2021	0	0
2020	0	0
2019	0	0
2018	0	0
2017	0	0
Prior	0	0
Revolving Loans	0	0
Revolving Loans Converted to Term Loans	0	0
Unallocated	0
Loans, amortized cost	0	0
SBA loans \| Pass
Financing Receivable, Credit Quality Indicator [Line Items]
2021	385,899	1,455,990
2020	1,080,706	0
2019	0	0
2018	0	0
2017	0	0
Prior	0	0
Revolving Loans	0	0
Revolving Loans Converted to Term Loans	0	0
Unallocated	0
Loans, amortized cost	1,466,605	1,455,990
SBA loans \| Criticized
Financing Receivable, Credit Quality Indicator [Line Items]
2021	49,353	103,540
2020	89,775	0
2019	0	0
2018	0	0
2017	0	0
Prior	0	0
Revolving Loans	0	0
Revolving Loans Converted to Term Loans	0	0
Unallocated	0
Loans, amortized cost	$ 139,128	$ 103,540

Loans, Allowance for Loan Los_7

Loans, Allowance for Loan Losses and Allowance for Unfunded Credit Commitments - Activity Relating to our Allowance for Credit Losses for Loans (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020	Dec. 31, 2020
Financing Receivable, Allowance for Credit Loss [Line Items]
Decrease in allowance for credit loss	$ (56,000)
Allowance for credit loss, beginning balance	447,765	$ 304,924
Charge-offs	(95,005)	(36,896)
Recoveries	4,853	7,755
Provision (Reduction) for Credit Losses	34,026	248,901
Foreign Currency Translation Adjustments	112	(1,185)
Allowance for credit loss, ending balance	391,751	548,963
Accrued interest receivable and other assets \| Loans
Financing Receivable, Allowance for Credit Loss [Line Items]
Accrued interest receivable	138,400		$ 126,400
Impact of adopting ASC 326
Financing Receivable, Allowance for Credit Loss [Line Items]
Allowance for credit loss, beginning balance		25,464
Investor dependent
Financing Receivable, Allowance for Credit Loss [Line Items]
Allowance for credit loss, beginning balance	213,357	82,370
Charge-offs	(14,243)	(33,499)
Recoveries	4,531	4,910
Provision (Reduction) for Credit Losses	(36,667)	151,397
Foreign Currency Translation Adjustments	(45)	(1,101)
Allowance for credit loss, ending balance	166,933	275,701
Investor dependent \| Impact of adopting ASC 326
Financing Receivable, Allowance for Credit Loss [Line Items]
Allowance for credit loss, beginning balance		71,624
Investor dependent \| Early stage
Financing Receivable, Allowance for Credit Loss [Line Items]
Allowance for credit loss, beginning balance	86,674	26,245
Charge-offs	(14,123)	(10,183)
Recoveries	838	1,573
Provision (Reduction) for Credit Losses	(11,121)	70,214
Foreign Currency Translation Adjustments	(21)	(571)
Allowance for credit loss, ending balance	62,247	127,189
Investor dependent \| Early stage \| Impact of adopting ASC 326
Financing Receivable, Allowance for Credit Loss [Line Items]
Allowance for credit loss, beginning balance		39,911
Investor dependent \| Growth Stage
Financing Receivable, Allowance for Credit Loss [Line Items]
Allowance for credit loss, beginning balance	126,683	56,125
Charge-offs	(120)	(23,316)
Recoveries	3,693	3,337
Provision (Reduction) for Credit Losses	(25,546)	81,183
Foreign Currency Translation Adjustments	(24)	(530)
Allowance for credit loss, ending balance	104,686	148,512
Investor dependent \| Growth Stage \| Impact of adopting ASC 326
Financing Receivable, Allowance for Credit Loss [Line Items]
Allowance for credit loss, beginning balance		31,713
SVB Private Bank
Financing Receivable, Allowance for Credit Loss [Line Items]
Allowance for credit loss, beginning balance	53,629	21,551
Charge-offs	0	(581)
Recoveries	2	0
Provision (Reduction) for Credit Losses	(8,567)	54,490
Foreign Currency Translation Adjustments	0	(280)
Allowance for credit loss, ending balance	45,064	87,795
SVB Private Bank \| Impact of adopting ASC 326
Financing Receivable, Allowance for Credit Loss [Line Items]
Allowance for credit loss, beginning balance		12,615
SBA loans
Financing Receivable, Allowance for Credit Loss [Line Items]
Allowance for credit loss, beginning balance	1,910
Charge-offs	0
Recoveries	0
Provision (Reduction) for Credit Losses	(1,910)
Foreign Currency Translation Adjustments	0
Allowance for credit loss, ending balance	0
Global Fund Banking
Financing Receivable, Allowance for Credit Loss [Line Items]
Allowance for credit loss, beginning balance	45,584	107,285
Charge-offs	(79,912)	0
Recoveries	0	0
Provision (Reduction) for Credit Losses	94,329	19,557
Foreign Currency Translation Adjustments	0	(180)
Allowance for credit loss, ending balance	60,001	56,774
Global Fund Banking \| Impact of adopting ASC 326
Financing Receivable, Allowance for Credit Loss [Line Items]
Allowance for credit loss, beginning balance		(69,888)
Cash Flow And Balance Sheet Dependent
Financing Receivable, Allowance for Credit Loss [Line Items]
Allowance for credit loss, beginning balance	124,249	80,820
Charge-offs	0	(2,624)
Recoveries	0	2,845
Provision (Reduction) for Credit Losses	(12,758)	25,301
Foreign Currency Translation Adjustments	2	(331)
Allowance for credit loss, ending balance	111,493	104,742
Cash Flow And Balance Sheet Dependent \| Impact of adopting ASC 326
Financing Receivable, Allowance for Credit Loss [Line Items]
Allowance for credit loss, beginning balance		(1,269)
Premium Wine And Other
Financing Receivable, Allowance for Credit Loss [Line Items]
Allowance for credit loss, beginning balance	9,036	12,898
Charge-offs	(850)	(192)
Recoveries	320	0
Provision (Reduction) for Credit Losses	(401)	(1,844)
Foreign Currency Translation Adjustments	155	707
Allowance for credit loss, ending balance	$ 8,260	23,951
Premium Wine And Other \| Impact of adopting ASC 326
Financing Receivable, Allowance for Credit Loss [Line Items]
Allowance for credit loss, beginning balance		$ 12,382

Loans, Allowance for Loan Los_8

Loans, Allowance for Loan Losses and Allowance for Unfunded Credit Commitments - Summary of the Aging of Loans Broken out by Risk-based Segments (Details) - USD ($) $ in Thousands	Mar. 31, 2021	Dec. 31, 2020
Financing Receivable, Past Due [Line Items]
Loans, amortized cost	$ 47,675,166	$ 45,181,488
Loans Past Due 90 Days or More Still Accruing Interest	4,491	0
30 - 59 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans, amortized cost	38,590	60,267
60 - 89 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans, amortized cost	3,079	7,251
Equal to or Greater Than 90 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans, amortized cost	6,483	2,200
Total Past Due
Financing Receivable, Past Due [Line Items]
Loans, amortized cost	48,152	69,718
Current
Financing Receivable, Past Due [Line Items]
Loans, amortized cost	47,627,014	45,111,770
Global Fund Banking
Financing Receivable, Past Due [Line Items]
Loans, amortized cost	27,306,926	25,543,198
Loans Past Due 90 Days or More Still Accruing Interest	4,088	0
Global Fund Banking \| 30 - 59 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans, amortized cost	10,002	27,606
Global Fund Banking \| 60 - 89 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans, amortized cost	3	8
Global Fund Banking \| Equal to or Greater Than 90 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans, amortized cost	4,106	11
Global Fund Banking \| Total Past Due
Financing Receivable, Past Due [Line Items]
Loans, amortized cost	14,111	27,625
Global Fund Banking \| Current
Financing Receivable, Past Due [Line Items]
Loans, amortized cost	27,292,815	25,515,573
Investor dependent
Financing Receivable, Past Due [Line Items]
Loans, amortized cost	5,167,069	4,971,818
Loans Past Due 90 Days or More Still Accruing Interest	9	0
Investor dependent \| 30 - 59 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans, amortized cost	17,669	17,667
Investor dependent \| 60 - 89 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans, amortized cost	798	2,078
Investor dependent \| Equal to or Greater Than 90 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans, amortized cost	500	1,109
Investor dependent \| Total Past Due
Financing Receivable, Past Due [Line Items]
Loans, amortized cost	18,967	20,854
Investor dependent \| Current
Financing Receivable, Past Due [Line Items]
Loans, amortized cost	5,148,102	4,950,964
Investor dependent \| Early stage
Financing Receivable, Past Due [Line Items]
Loans, amortized cost	1,523,208	1,485,866
Loans Past Due 90 Days or More Still Accruing Interest	9	0
Investor dependent \| Early stage \| 30 - 59 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans, amortized cost	6,270	6,320
Investor dependent \| Early stage \| 60 - 89 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans, amortized cost	643	1,840
Investor dependent \| Early stage \| Equal to or Greater Than 90 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans, amortized cost	500	202
Investor dependent \| Early stage \| Total Past Due
Financing Receivable, Past Due [Line Items]
Loans, amortized cost	7,413	8,362
Investor dependent \| Early stage \| Current
Financing Receivable, Past Due [Line Items]
Loans, amortized cost	1,515,795	1,477,504
Investor dependent \| Mid stage
Financing Receivable, Past Due [Line Items]
Loans, amortized cost	1,588,185	1,564,870
Loans Past Due 90 Days or More Still Accruing Interest	0	0
Investor dependent \| Mid stage \| 30 - 59 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans, amortized cost	8,127	5,984
Investor dependent \| Mid stage \| 60 - 89 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans, amortized cost	155	238
Investor dependent \| Mid stage \| Equal to or Greater Than 90 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans, amortized cost	0	907
Investor dependent \| Mid stage \| Total Past Due
Financing Receivable, Past Due [Line Items]
Loans, amortized cost	8,282	7,129
Investor dependent \| Mid stage \| Current
Financing Receivable, Past Due [Line Items]
Loans, amortized cost	1,579,903	1,557,741
Investor dependent \| Later stage
Financing Receivable, Past Due [Line Items]
Loans, amortized cost	2,055,676	1,921,082
Loans Past Due 90 Days or More Still Accruing Interest	0	0
Investor dependent \| Later stage \| 30 - 59 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans, amortized cost	3,272	5,363
Investor dependent \| Later stage \| 60 - 89 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans, amortized cost	0	0
Investor dependent \| Later stage \| Equal to or Greater Than 90 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans, amortized cost	0	0
Investor dependent \| Later stage \| Total Past Due
Financing Receivable, Past Due [Line Items]
Loans, amortized cost	3,272	5,363
Investor dependent \| Later stage \| Current
Financing Receivable, Past Due [Line Items]
Loans, amortized cost	2,052,404	1,915,719
Cash flow dependent
Financing Receivable, Past Due [Line Items]
Loans, amortized cost	4,944,176	4,934,533
Loans Past Due 90 Days or More Still Accruing Interest	0	0
Cash flow dependent \| 30 - 59 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans, amortized cost	3,839	6,544
Cash flow dependent \| 60 - 89 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans, amortized cost	69	58
Cash flow dependent \| Equal to or Greater Than 90 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans, amortized cost	485	0
Cash flow dependent \| Total Past Due
Financing Receivable, Past Due [Line Items]
Loans, amortized cost	4,393	6,602
Cash flow dependent \| Current
Financing Receivable, Past Due [Line Items]
Loans, amortized cost	4,939,783	4,927,931
Cash flow dependent \| Sponsor led buyout
Financing Receivable, Past Due [Line Items]
Loans, amortized cost	1,984,567	1,989,173
Loans Past Due 90 Days or More Still Accruing Interest	0	0
Cash flow dependent \| Sponsor led buyout \| 30 - 59 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans, amortized cost	0	34
Cash flow dependent \| Sponsor led buyout \| 60 - 89 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans, amortized cost	0	0
Cash flow dependent \| Sponsor led buyout \| Equal to or Greater Than 90 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans, amortized cost	0	0
Cash flow dependent \| Sponsor led buyout \| Total Past Due
Financing Receivable, Past Due [Line Items]
Loans, amortized cost	0	34
Cash flow dependent \| Sponsor led buyout \| Current
Financing Receivable, Past Due [Line Items]
Loans, amortized cost	1,984,567	1,989,139
Cash flow dependent \| Other
Financing Receivable, Past Due [Line Items]
Loans, amortized cost	2,959,609	2,945,360
Loans Past Due 90 Days or More Still Accruing Interest	0	0
Cash flow dependent \| Other \| 30 - 59 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans, amortized cost	3,839	6,510
Cash flow dependent \| Other \| 60 - 89 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans, amortized cost	69	58
Cash flow dependent \| Other \| Equal to or Greater Than 90 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans, amortized cost	485	0
Cash flow dependent \| Other \| Total Past Due
Financing Receivable, Past Due [Line Items]
Loans, amortized cost	4,393	6,568
Cash flow dependent \| Other \| Current
Financing Receivable, Past Due [Line Items]
Loans, amortized cost	2,955,216	2,938,792
SVB Private Bank
Financing Receivable, Past Due [Line Items]
Loans, amortized cost	5,063,827	4,901,056
Loans Past Due 90 Days or More Still Accruing Interest	0	0
SVB Private Bank \| 30 - 59 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans, amortized cost	0	4,292
SVB Private Bank \| 60 - 89 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans, amortized cost	1,973	3,990
SVB Private Bank \| Equal to or Greater Than 90 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans, amortized cost	0	0
SVB Private Bank \| Total Past Due
Financing Receivable, Past Due [Line Items]
Loans, amortized cost	1,973	8,282
SVB Private Bank \| Current
Financing Receivable, Past Due [Line Items]
Loans, amortized cost	5,061,854	4,892,774
Balance sheet dependent
Financing Receivable, Past Due [Line Items]
Loans, amortized cost	2,501,524	2,191,023
Loans Past Due 90 Days or More Still Accruing Interest	0	0
Balance sheet dependent \| 30 - 59 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans, amortized cost	6,962	987
Balance sheet dependent \| 60 - 89 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans, amortized cost	62	1,089
Balance sheet dependent \| Equal to or Greater Than 90 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans, amortized cost	0	0
Balance sheet dependent \| Total Past Due
Financing Receivable, Past Due [Line Items]
Loans, amortized cost	7,024	2,076
Balance sheet dependent \| Current
Financing Receivable, Past Due [Line Items]
Loans, amortized cost	2,494,500	2,188,947
Premium wine
Financing Receivable, Past Due [Line Items]
Loans, amortized cost	1,040,223	1,052,643
Loans Past Due 90 Days or More Still Accruing Interest	0	0
Premium wine \| 30 - 59 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans, amortized cost	0	3,168
Premium wine \| 60 - 89 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans, amortized cost	0	0
Premium wine \| Equal to or Greater Than 90 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans, amortized cost	998	998
Premium wine \| Total Past Due
Financing Receivable, Past Due [Line Items]
Loans, amortized cost	998	4,166
Premium wine \| Current
Financing Receivable, Past Due [Line Items]
Loans, amortized cost	1,039,225	1,048,477
Other
Financing Receivable, Past Due [Line Items]
Loans, amortized cost	45,688	27,687
Loans Past Due 90 Days or More Still Accruing Interest	0	0
Other \| 30 - 59 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans, amortized cost	1	3
Other \| 60 - 89 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans, amortized cost	0	28
Other \| Equal to or Greater Than 90 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans, amortized cost	0	82
Other \| Total Past Due
Financing Receivable, Past Due [Line Items]
Loans, amortized cost	1	113
Other \| Current
Financing Receivable, Past Due [Line Items]
Loans, amortized cost	45,687	27,574
SBA loans
Financing Receivable, Past Due [Line Items]
Loans, amortized cost	1,605,733	1,559,530
Loans Past Due 90 Days or More Still Accruing Interest	394	0
SBA loans \| 30 - 59 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans, amortized cost	117	0
SBA loans \| 60 - 89 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans, amortized cost	174	0
SBA loans \| Equal to or Greater Than 90 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans, amortized cost	394	0
SBA loans \| Total Past Due
Financing Receivable, Past Due [Line Items]
Loans, amortized cost	685	0
SBA loans \| Current
Financing Receivable, Past Due [Line Items]
Loans, amortized cost	$ 1,605,048	$ 1,559,530

Loans, Allowance for Loan Los_9

Loans, Allowance for Loan Losses and Allowance for Unfunded Credit Commitments - Nonaccrual Loans with No Allowance for Credit Loss (Details) - USD ($) $ in Thousands	Mar. 31, 2021	Dec. 31, 2020
Financing Receivable, Nonaccrual [Line Items]
Nonaccrual Loans	$ 90,247	$ 104,244
Nonaccrual Loans with no Allowance for Credit Loss	10,755	7,850
Global Fund Banking
Financing Receivable, Nonaccrual [Line Items]
Nonaccrual Loans	18	11
Nonaccrual Loans with no Allowance for Credit Loss	8	11
Investor dependent
Financing Receivable, Nonaccrual [Line Items]
Nonaccrual Loans	35,169	51,053
Nonaccrual Loans with no Allowance for Credit Loss	6,813	3,280
Cash flow dependent
Financing Receivable, Nonaccrual [Line Items]
Nonaccrual Loans	45,476	46,000
Nonaccrual Loans with no Allowance for Credit Loss	572	1,138
SVB Private Bank
Financing Receivable, Nonaccrual [Line Items]
Nonaccrual Loans	8,445	6,152
Nonaccrual Loans with no Allowance for Credit Loss	2,365	2,393
Balance sheet dependent
Financing Receivable, Nonaccrual [Line Items]
Nonaccrual Loans	0	0
Nonaccrual Loans with no Allowance for Credit Loss	0	0
Premium wine
Financing Receivable, Nonaccrual [Line Items]
Nonaccrual Loans	1,139	998
Nonaccrual Loans with no Allowance for Credit Loss	997	998
Other
Financing Receivable, Nonaccrual [Line Items]
Nonaccrual Loans	0	30
Nonaccrual Loans with no Allowance for Credit Loss	0	30
SBA loans
Financing Receivable, Nonaccrual [Line Items]
Nonaccrual Loans	0	0
Nonaccrual Loans with no Allowance for Credit Loss	0	0
Early stage \| Investor dependent
Financing Receivable, Nonaccrual [Line Items]
Nonaccrual Loans	7,766	18,340
Nonaccrual Loans with no Allowance for Credit Loss	376	3
Mid stage \| Investor dependent
Financing Receivable, Nonaccrual [Line Items]
Nonaccrual Loans	0	4,056
Nonaccrual Loans with no Allowance for Credit Loss	0	3,159
Later stage \| Investor dependent
Financing Receivable, Nonaccrual [Line Items]
Nonaccrual Loans	27,403	28,657
Nonaccrual Loans with no Allowance for Credit Loss	6,437	118
Sponsor led buyout \| Cash flow dependent
Financing Receivable, Nonaccrual [Line Items]
Nonaccrual Loans	39,848	39,996
Nonaccrual Loans with no Allowance for Credit Loss	0	0
Other \| Cash flow dependent
Financing Receivable, Nonaccrual [Line Items]
Nonaccrual Loans	5,628	6,004
Nonaccrual Loans with no Allowance for Credit Loss	$ 572	$ 1,138

Loans, Allowance for Loan Lo_10

Loans, Allowance for Loan Losses and Allowance for Unfunded Credit Commitments - Summary of Loans Modified in Troubled Debt Restructurings (TDRs) (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2021USD ($)troubled_debt_restructuring	Mar. 31, 2020USD ($)	Dec. 31, 2020USD ($)
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of TDRs \| troubled_debt_restructuring	15
Loans modified in TDRs	$ 72,785		$ 61,078
Unfunded commitments available for funding associated with TDRs	0
Partial charge-offs on loans classified as TDRs	1,800	$ 12,500
Investor dependent
Financing Receivable, Troubled Debt Restructuring [Line Items]
Loans modified in TDRs	23,275		35,651
Investor dependent \| Early stage
Financing Receivable, Troubled Debt Restructuring [Line Items]
Loans modified in TDRs	2,322		6,705
Investor dependent \| Mid stage
Financing Receivable, Troubled Debt Restructuring [Line Items]
Loans modified in TDRs	0		4,050
Investor dependent \| Later stage
Financing Receivable, Troubled Debt Restructuring [Line Items]
Loans modified in TDRs	20,953		24,896
Cash flow dependent
Financing Receivable, Troubled Debt Restructuring [Line Items]
Loans modified in TDRs	44,800		22,766
Cash flow dependent \| Sponsor led buyout
Financing Receivable, Troubled Debt Restructuring [Line Items]
Loans modified in TDRs	39,897		21,529
Cash flow dependent \| Other
Financing Receivable, Troubled Debt Restructuring [Line Items]
Loans modified in TDRs	4,903		1,237
SVB Private Bank
Financing Receivable, Troubled Debt Restructuring [Line Items]
Loans modified in TDRs	2,079		0
Balance sheet dependent
Financing Receivable, Troubled Debt Restructuring [Line Items]
Loans modified in TDRs	0		0
Premium wine
Financing Receivable, Troubled Debt Restructuring [Line Items]
Loans modified in TDRs	2,631		2,661
Other
Financing Receivable, Troubled Debt Restructuring [Line Items]
Loans modified in TDRs	0		0
SBA loans
Financing Receivable, Troubled Debt Restructuring [Line Items]
Loans modified in TDRs	0		0
Global Fund Banking
Financing Receivable, Troubled Debt Restructuring [Line Items]
Loans modified in TDRs	$ 0		$ 0

Loans, Allowance for Loan Lo_11

Loans, Allowance for Loan Losses and Allowance for Unfunded Credit Commitments - Recorded Investment in Loans Modified in TDRs (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Financing Receivable, Troubled Debt Restructuring [Line Items]
Loans modified in TDRs during the period	$ 24,252	$ 8,724
Payment deferrals
Financing Receivable, Troubled Debt Restructuring [Line Items]
Loans modified in TDRs during the period	22,200	8,300
Principal forgiveness
Financing Receivable, Troubled Debt Restructuring [Line Items]
Loans modified in TDRs during the period	2,100	400
Investor dependent
Financing Receivable, Troubled Debt Restructuring [Line Items]
Loans modified in TDRs during the period	0	8,724
Investor dependent \| Early stage
Financing Receivable, Troubled Debt Restructuring [Line Items]
Loans modified in TDRs during the period	0	0
Investor dependent \| Mid stage
Financing Receivable, Troubled Debt Restructuring [Line Items]
Loans modified in TDRs during the period	0	5,955
Investor dependent \| Later stage
Financing Receivable, Troubled Debt Restructuring [Line Items]
Loans modified in TDRs during the period	0	2,769
Cash flow dependent
Financing Receivable, Troubled Debt Restructuring [Line Items]
Loans modified in TDRs during the period	22,173	0
Cash flow dependent \| Sponsor led buyout
Financing Receivable, Troubled Debt Restructuring [Line Items]
Loans modified in TDRs during the period	18,439	0
Cash flow dependent \| Other
Financing Receivable, Troubled Debt Restructuring [Line Items]
Loans modified in TDRs during the period	3,734	0
SVB Private Bank
Financing Receivable, Troubled Debt Restructuring [Line Items]
Loans modified in TDRs during the period	2,079	0
Balance sheet dependent
Financing Receivable, Troubled Debt Restructuring [Line Items]
Loans modified in TDRs during the period	0	0
Premium wine
Financing Receivable, Troubled Debt Restructuring [Line Items]
Loans modified in TDRs during the period	0	0
Other
Financing Receivable, Troubled Debt Restructuring [Line Items]
Loans modified in TDRs during the period	0	0
SBA loans
Financing Receivable, Troubled Debt Restructuring [Line Items]
Loans modified in TDRs during the period	0	0
Global Fund Banking
Financing Receivable, Troubled Debt Restructuring [Line Items]
Loans modified in TDRs during the period	$ 0	$ 0

Loans, Allowance for Loan Lo_12

Loans, Allowance for Loan Losses and Allowance for Unfunded Credit Commitments - Recorded Investment in Loans Modified in TDRs within Previous 12 months Subsequently Defaulted (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Financing Receivable, Troubled Debt Restructuring [Line Items]
Recorded investment in loans modified in TDRs	$ 3,734	$ 8,247
Investor dependent
Financing Receivable, Troubled Debt Restructuring [Line Items]
Recorded investment in loans modified in TDRs	0	0
Investor dependent \| Early stage
Financing Receivable, Troubled Debt Restructuring [Line Items]
Recorded investment in loans modified in TDRs	0	0
Investor dependent \| Mid stage
Financing Receivable, Troubled Debt Restructuring [Line Items]
Recorded investment in loans modified in TDRs	0	0
Investor dependent \| Later stage
Financing Receivable, Troubled Debt Restructuring [Line Items]
Recorded investment in loans modified in TDRs	0	0
Cash flow dependent
Financing Receivable, Troubled Debt Restructuring [Line Items]
Recorded investment in loans modified in TDRs	3,734	0
Cash flow dependent \| Sponsor led buyout
Financing Receivable, Troubled Debt Restructuring [Line Items]
Recorded investment in loans modified in TDRs	0	0
Cash flow dependent \| Other
Financing Receivable, Troubled Debt Restructuring [Line Items]
Recorded investment in loans modified in TDRs	3,734	0
SVB Private Bank
Financing Receivable, Troubled Debt Restructuring [Line Items]
Recorded investment in loans modified in TDRs	0	0
Balance sheet dependent
Financing Receivable, Troubled Debt Restructuring [Line Items]
Recorded investment in loans modified in TDRs	0	0
Premium wine
Financing Receivable, Troubled Debt Restructuring [Line Items]
Recorded investment in loans modified in TDRs	0	8,247
Other
Financing Receivable, Troubled Debt Restructuring [Line Items]
Recorded investment in loans modified in TDRs	0	0
SBA loans
Financing Receivable, Troubled Debt Restructuring [Line Items]
Recorded investment in loans modified in TDRs	0	0
Global Fund Banking
Financing Receivable, Troubled Debt Restructuring [Line Items]
Recorded investment in loans modified in TDRs	$ 0	$ 0

Loans, Allowance for Loan Lo_13

Loans, Allowance for Loan Losses and Allowance for Unfunded Credit Commitments - Allowance for Credit Losses: Unfunded Credit Commitments (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Financing Receivable, Allowance for Credit Loss [Line Items]
Allowance for credit loss, beginning balance	$ 447,765	$ 304,924
Reduction of credit losses	34,026	248,901
Foreign currency translation adjustments	112	(1,185)
Allowance for credit loss, ending balance	391,751	548,963
Cumulative adjustment for the adoption of amendment
Financing Receivable, Allowance for Credit Loss [Line Items]
Allowance for credit loss, beginning balance		25,464
Unfunded Credit Commitments
Financing Receivable, Allowance for Credit Loss [Line Items]
Allowance for credit loss, beginning balance	120,796	67,656
Reduction of credit losses	(16,067)	(5,477)
Foreign currency translation adjustments	21	(315)
Allowance for credit loss, ending balance	104,750	84,690
Unfunded Credit Commitments \| Cumulative adjustment for the adoption of amendment
Financing Receivable, Allowance for Credit Loss [Line Items]
Allowance for credit loss, beginning balance	$ 0	$ 22,826

Goodwill and Other Intangible_3

Goodwill and Other Intangible Assets - Narrative (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2021	Dec. 31, 2020
Goodwill and Intangible Assets Disclosure [Abstract]
Goodwill	$ 142,685	$ 142,685
Amortization expense	$ 2,100

Goodwill and Other Intangible_4

Goodwill and Other Intangible Assets - Other Intangible Assets (Details) - USD ($) $ in Thousands	Mar. 31, 2021	Dec. 31, 2020
Other intangible assets:
Estimated Fair Value	$ 78,300	$ 78,300
Accumulated Amortization	18,975	16,865
Net Carrying Amount	59,325	61,435
Customer relationships
Other intangible assets:
Estimated Fair Value	42,000	42,000
Accumulated Amortization	8,591	7,636
Net Carrying Amount	33,409	34,364
Other
Other intangible assets:
Estimated Fair Value	36,300	36,300
Accumulated Amortization	10,384	9,229
Net Carrying Amount	$ 25,916	$ 27,071

Goodwill and Other Intangible_5

Goodwill and Other Intangible Assets - Future Amortization Expense (Details) - USD ($) $ in Thousands	Mar. 31, 2021	Dec. 31, 2020
Goodwill and Intangible Assets Disclosure [Abstract]
2021 (excluding the three months ended March 31, 2021)	$ 6,107
2022	8,141
2023	8,141
2024	8,141
2025	6,900
2026 and thereafter	21,895
Net Carrying Amount	$ 59,325	$ 61,435

Short-Term Borrowings and Lon_3

Short-Term Borrowings and Long-Term Debt - Outstanding Short Term Borrowings and Long Term Debt (Details) - USD ($)	3 Months Ended
	Mar. 31, 2021	Feb. 02, 2021	Dec. 31, 2020	Jun. 05, 2020	Jan. 31, 2015
Debt Outstanding [Line Items]
Short-term borrowings	$ 38,434,000		$ 20,553,000
Long-term debt	$ 1,338,183,000		843,628,000
Senior Notes \| 3.50% Senior Notes
Debt Outstanding [Line Items]
Maturity Date	Jan. 29, 2025
Principal value at period end	$ 350,000,000				$ 350,000,000
Long-term debt	$ 348,441,000		$ 348,348,000
Interest rate on senior notes	3.50%		3.50%		3.50%
Senior Notes \| 3.125% Senior Notes
Debt Outstanding [Line Items]
Maturity Date	Jun. 5, 2030
Principal value at period end	$ 500,000,000			$ 500,000,000
Long-term debt	$ 495,387,000		$ 495,280,000
Interest rate on senior notes	3.125%			3.125%
Senior Notes \| 1.800% Senior Notes
Debt Outstanding [Line Items]
Maturity Date	Feb. 2, 2031
Principal value at period end		$ 500,000,000
Long-term debt	$ 494,355,000		0
Interest rate on senior notes	1.80%	1.80%
Other short-term borrowings
Debt Outstanding [Line Items]
Principal value at period end	$ 38,434,000
Short-term borrowings	$ 38,434,000		$ 20,553,000

Short-Term Borrowings and Lon_4

Short-Term Borrowings and Long-Term Debt - Outstanding Short Term Borrowings and Long Term Debt (Additional Information) (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020	Dec. 31, 2020
Debt Disclosure [Abstract]
Interest expense on debt	$ 8.7	$ 5.9
Weighted average interest rate on short-term borrowings	6.00%		80.00%

Short-Term Borrowings and Lon_5

Short-Term Borrowings and Long-Term Debt - Short-term Borrowings (Details) $ in Billions	Mar. 31, 2021USD ($)
Short-term FHLB advances
Debt Disclosure [Line Items]
FHLB advances	$ 6.9
Unused borrowing capacity	5.8
Federal Reserve Bank Advances
Debt Disclosure [Line Items]
Line of credit, remaining borrowing capacity	0.9
Federal funds lines
Debt Disclosure [Line Items]
Line of credit, remaining borrowing capacity	1.9
Securities sold under agreement to repurchase
Debt Disclosure [Line Items]
Line of credit, remaining borrowing capacity	$ 4

Short-Term Borrowings and Lon_6

Short-Term Borrowings and Long-Term Debt - Senior Notes (Details) - USD ($)	Feb. 02, 2021	Jun. 05, 2020	Jan. 31, 2015	Mar. 31, 2021	Dec. 31, 2020
Debt Instrument [Line Items]
Long-term debt				$ 1,338,183,000	$ 843,628,000
Senior Notes \| 3.125% Senior Notes
Debt Instrument [Line Items]
Debt issuance, principal value		$ 500,000,000		$ 500,000,000
Interest rate on senior notes		3.125%		3.125%
Net proceeds from debt		$ 495,400,000
Long-term debt				$ 495,387,000	$ 495,280,000
Debt instrument, unamortized discount		300,000
Debt issuance costs				4,300,000
Senior Notes \| 3.50% Senior Notes
Debt Instrument [Line Items]
Debt issuance, principal value			$ 350,000,000	$ 350,000,000
Interest rate on senior notes			3.50%	3.50%	3.50%
Net proceeds from debt			$ 346,400,000
Long-term debt				$ 348,441,000	$ 348,348,000
Debt instrument, unamortized discount				100,000
Debt issuance costs				$ 1,500,000
Senior Notes \| 1.800% Senior Notes
Debt Instrument [Line Items]
Debt issuance, principal value	$ 500,000,000
Interest rate on senior notes	1.80%			1.80%
Net proceeds from debt	$ 494,300,000
Long-term debt				$ 494,355,000	$ 0
Debt instrument, unamortized discount		$ 1,600,000
Debt issuance costs				$ 4,000,000

Derivative Financial Instrume_3

Derivative Financial Instruments - Interest Rate Risk and Cash Flow Hedges (Details) $ in Millions	3 Months Ended
	Mar. 31, 2021USD ($)
Derivative [Line Items]
Unrealized gain on terminated cash flow hedge remaining in AOCI, before tax	$ 163.4
Unrealized gain on terminated cash flow hedge remaining in AOCI, net of tax	$ 118
Term unrealized gains reclassified into earnings	4 years
Derivatives designated as hedging instruments \| Interest rate swaps
Derivative [Line Items]
Derivative notional amount	$ 5,000
Derivatives net asset fair value	$ 227.5

Derivative Financial Instrume_4

Derivative Financial Instruments - Fair Value Hedges (Details) - Interest rate swaps - Other assets - Derivatives designated as hedging instruments $ in Thousands	Mar. 31, 2021USD ($)
Derivative [Line Items]
Amortized Cost Basis of the Hedged Assets	$ 21,312,139
Hedged Asset, Fair Value Hedge, Cumulative Increase (Decrease)	$ (16,975)

Derivative Financial Instrume_5

Derivative Financial Instruments - Total Notional or Contractual Amounts, Fair Value, Collateral and Net Exposure of Derivative Financial Instruments (Details) - USD ($) $ in Thousands	Mar. 31, 2021	Dec. 31, 2020
Derivative [Line Items]
Derivative Assets	$ 305,306	$ 284,831
Derivative Liabilities	271,486	237,479
Derivative Assets, Total	549,640	488,269
Derivative Liabilities, Total	271,486	237,479
Reduction in derivative liabilities due to rules of clearing houses	22,700	45,400
Foreign exchange forwards
Derivative [Line Items]
Derivative Assets	239,143	215,275
Derivative Liabilities	201,492	209,131
Client foreign currency options
Derivative [Line Items]
Derivative Assets	1,040	1,702
Derivative Liabilities	1,040	1,702
Client interest rate derivatives
Derivative [Line Items]
Derivative Assets	65,123	67,854
Derivative Liabilities	68,954	26,646
Derivatives designated as hedging instruments \| Interest rate swaps \| Other assets
Derivative [Line Items]
Derivative Asset, Notional or Contractual Amount	10,000,000	0
Derivative Assets	0	0
Derivatives designated as hedging instruments \| Interest rate swaps \| Other liabilities
Derivative [Line Items]
Derivative Liabilities, Notional or Contractual Amount	0	0
Derivative Liabilities	0	0
Derivatives not designated as hedging instruments
Derivative [Line Items]
Derivative Assets	549,640	488,269
Derivative Liabilities	271,486	237,479
Derivatives not designated as hedging instruments \| Foreign exchange forwards \| Other assets
Derivative [Line Items]
Derivative Asset, Notional or Contractual Amount	687,576	68,381
Derivative Liabilities	19,109	306
Derivatives not designated as hedging instruments \| Foreign exchange forwards \| Other liabilities
Derivative [Line Items]
Derivative Liabilities, Notional or Contractual Amount	97,950	566,988
Derivative Liabilities	2,626	20,566
Derivatives not designated as hedging instruments \| Equity warrant assets \| Other assets
Derivative [Line Items]
Derivative Asset, Notional or Contractual Amount	299,101	253,153
Derivative Assets	244,334	203,438
Derivatives not designated as hedging instruments \| Client foreign exchange forwards \| Other assets
Derivative [Line Items]
Derivative Asset, Notional or Contractual Amount	9,015,147	8,025,973
Derivative Assets	220,034	214,969
Derivatives not designated as hedging instruments \| Client foreign exchange forwards \| Other liabilities
Derivative [Line Items]
Derivative Liabilities, Notional or Contractual Amount	8,675,502	7,490,723
Derivative Liabilities	198,866	188,565
Derivatives not designated as hedging instruments \| Client foreign currency options \| Other assets
Derivative [Line Items]
Derivative Asset, Notional or Contractual Amount	63,503	97,529
Derivative Assets	1,040	1,702
Derivatives not designated as hedging instruments \| Client foreign currency options \| Other liabilities
Derivative [Line Items]
Derivative Liabilities, Notional or Contractual Amount	63,503	97,522
Derivative Liabilities	1,040	1,702
Derivatives not designated as hedging instruments \| Client interest rate derivatives \| Other assets
Derivative [Line Items]
Derivative Asset, Notional or Contractual Amount	1,212,842	1,082,265
Derivative Assets	65,123	67,854
Derivatives not designated as hedging instruments \| Client interest rate derivatives \| Other liabilities
Derivative [Line Items]
Derivative Liabilities, Notional or Contractual Amount	1,381,626	1,250,975
Derivative Liabilities	$ 68,954	$ 26,646

Derivative Financial Instrume_6

Derivative Financial Instruments - Summary of Derivative Activity and Related Impact on Consolidated Statements of Income (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Interest rate risks \| Derivatives designated as hedging instruments
Derivative Instruments, Gain (Loss) [Line Items]
Unrealized gains (losses) on derivatives	$ 17,176	$ 2,089
Interest rate risks \| Derivatives designated as hedging instruments \| Reclassification out of Accumulated Other Comprehensive Income \| Interest income - loans
Derivative Instruments, Gain (Loss) [Line Items]
Unrealized gains (losses) on derivatives	15,657	2,089
Interest rate risks \| Derivatives designated as hedging instruments \| Change In Fair Value Of Interest Rate Swaps Hedging Investment Securities \| Interest income - loans
Derivative Instruments, Gain (Loss) [Line Items]
Unrealized gains (losses) on derivatives	18,494	0
Interest rate risks \| Derivatives designated as hedging instruments \| Change In Fair Value Of Hedged Investment Securities \| Interest income - loans
Derivative Instruments, Gain (Loss) [Line Items]
Unrealized gains (losses) on derivatives	(16,975)	0
Currency exchange risk \| Derivatives not designated as hedging instruments
Derivative Instruments, Gain (Loss) [Line Items]
Unrealized gains (losses) on derivatives	(1,276)	293
Currency exchange risk \| Derivatives not designated as hedging instruments \| Revaluations of internal foreign currency instruments, net \| Other noninterest income
Derivative Instruments, Gain (Loss) [Line Items]
Unrealized gains (losses) on derivatives	(28,129)	(8,375)
Currency exchange risk \| Derivatives not designated as hedging instruments \| Foreign exchange forward contracts, net \| Other noninterest income
Derivative Instruments, Gain (Loss) [Line Items]
Unrealized gains (losses) on derivatives	26,853	8,668
Other derivative instruments \| Derivatives not designated as hedging instruments
Derivative Instruments, Gain (Loss) [Line Items]
Unrealized gains (losses) on derivatives	324	(537)
Other derivative instruments \| Derivatives not designated as hedging instruments \| Other noninterest income
Derivative Instruments, Gain (Loss) [Line Items]
Unrealized gains (losses) on derivatives	4,521	(4,345)
Other derivative instruments \| Derivatives not designated as hedging instruments \| Revaluations of internal foreign currency instruments, net \| Other noninterest income
Derivative Instruments, Gain (Loss) [Line Items]
Unrealized gains (losses) on derivatives	(2,427)	(8,284)
Other derivative instruments \| Derivatives not designated as hedging instruments \| Foreign exchange forward contracts, net \| Other noninterest income
Derivative Instruments, Gain (Loss) [Line Items]
Unrealized gains (losses) on derivatives	2,751	7,747
Equity warrant assets
Derivative Instruments, Gain (Loss) [Line Items]
Unrealized gains (losses) on derivatives	29,445	(18,574)
Equity warrant assets \| Derivatives not designated as hedging instruments \| Gains on equity warrant assets, net
Derivative Instruments, Gain (Loss) [Line Items]
Unrealized gains (losses) on derivatives	$ 221,685	$ 13,395

Derivative Financial Instrume_7

Derivative Financial Instruments - Balance Sheet Offsetting, Assets (Details) - USD ($) $ in Thousands	Mar. 31, 2021	Dec. 31, 2020
Derivative Assets
Gross Amounts of Recognized Assets	$ 305,306	$ 284,831
Gross Amounts offset in the Statement of Financial Position	0	0
Net Amounts of Assets Presented in the Statement of Financial Position	305,306	284,831
Financial Instruments (Collateral)	(143,203)	(144,882)
Cash Collateral Received	(38,434)	(20,553)
Net Amount	123,669	119,396
Reverse repurchase, securities borrowing, and similar arrangements
Gross Amounts of Recognized Assets	288,438	226,847
Gross Amounts offset in the Statement of Financial Position	0	0
Net Amounts of Assets Presented in the Statement of Financial Position	288,438	226,847
Financial Instruments (Collateral)	(288,438)	(226,847)
Cash Collateral Received	0	0
Net Amount	0	0
Total
Gross Amounts of Recognized Assets	593,744	511,678
Gross Amounts offset in the Statement of Financial Position	0	0
Net Amounts of Assets Presented in the Statement of Financial Position	593,744	511,678
Financial Instruments (Collateral)	(431,641)	(371,729)
Cash Collateral Received	(38,434)	(20,553)
Net Amount	123,669	119,396
Foreign exchange forwards
Derivative Assets
Gross Amounts of Recognized Assets	239,143	215,275
Gross Amounts offset in the Statement of Financial Position	0	0
Net Amounts of Assets Presented in the Statement of Financial Position	239,143	215,275
Derivative Asset, Not Offset, Policy Election Deduction	(77,667)	(75,983)
Cash Collateral Received	(38,286)	(20,550)
Net Amount	123,190	118,742
Client foreign currency options
Derivative Assets
Gross Amounts of Recognized Assets	1,040	1,702
Gross Amounts offset in the Statement of Financial Position	0	0
Net Amounts of Assets Presented in the Statement of Financial Position	1,040	1,702
Derivative Asset, Not Offset, Policy Election Deduction	(413)	(1,045)
Cash Collateral Received	(148)	(3)
Net Amount	479	654
Client interest rate derivatives
Derivative Assets
Gross Amounts of Recognized Assets	65,123	67,854
Gross Amounts offset in the Statement of Financial Position	0	0
Net Amounts of Assets Presented in the Statement of Financial Position	65,123	67,854
Derivative Asset, Not Offset, Policy Election Deduction	(65,123)	(67,854)
Cash Collateral Received	0	0
Net Amount	$ 0	$ 0

Derivative Financial Instrume_8

Derivative Financial Instruments - Balance Sheet Offsetting, Liabilities (Details) - USD ($) $ in Thousands	Mar. 31, 2021	Dec. 31, 2020
Derivative Liabilities
Gross Amounts of Recognized Liabilities	$ 271,486	$ 237,479
Gross Amounts offset in the Statement of Financial Position	0	0
Net Amounts of Liabilities Presented in the Statement of Financial Position	271,486	237,479
Financial Instruments (Collateral)	(114,797)	(85,192)
Cash Collateral Pledged	(74,152)	(71,475)
Net Amount	82,537	80,812
Repurchase, securities lending, and similar arrangements
Securities Sold under Agreements to Repurchase, Gross	0	0
Securities Sold under Agreements to Repurchase, Asset	0	0
Securities Sold under Agreements to Repurchase	0	0
Financial Instruments (Collateral)	0	0
Cash Collateral Pledged	0	0
Net Amount	0	0
Total
Gross Amounts of Recognized Liabilities	271,486	237,479
Gross Amounts offset in the Statement of Financial Position	0	0
Net Amounts of Liabilities Presented in the Statement of Financial Position	271,486	237,479
Financial Instruments (Collateral)	(114,797)	(85,192)
Cash Collateral Pledged	(74,152)	(71,475)
Net Amount	82,537	80,812
Foreign exchange forwards
Derivative Liabilities
Gross Amounts of Recognized Liabilities	201,492	209,131
Gross Amounts offset in the Statement of Financial Position	0	0
Net Amounts of Liabilities Presented in the Statement of Financial Position	201,492	209,131
Derivative Liability, Not Offset, Policy Election Deduction	(61,303)	(84,547)
Cash Collateral Pledged	(58,582)	(45,367)
Net Amount	81,607	79,217
Client foreign currency options
Derivative Liabilities
Gross Amounts of Recognized Liabilities	1,040	1,702
Gross Amounts offset in the Statement of Financial Position	0	0
Net Amounts of Liabilities Presented in the Statement of Financial Position	1,040	1,702
Derivative Liability, Not Offset, Policy Election Deduction	(491)	(645)
Cash Collateral Pledged	0	(8)
Net Amount	549	1,049
Client interest rate derivatives
Derivative Liabilities
Gross Amounts of Recognized Liabilities	68,954	26,646
Gross Amounts offset in the Statement of Financial Position	0	0
Net Amounts of Liabilities Presented in the Statement of Financial Position	68,954	26,646
Derivative Liability, Not Offset, Policy Election Deduction	(53,003)	0
Cash Collateral Pledged	(15,570)	(26,100)
Net Amount	$ 381	$ 546

Noninterest Income - Summary of

Noninterest Income - Summary of Noninterest Income (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Other Income and Expenses [Abstract]
Gains on investment securities, net	$ 167,078	$ 46,055
Gains on equity warrant assets, net	221,685	13,395
Client investment fees	20,065	43,393
Foreign exchange fees	57,393	47,505
Credit card fees	27,567	28,304
Deposit service charges	25,151	24,589
Lending related fees	15,657	13,125
Letters of credit and standby letters of credit fees	13,051	11,542
Investment banking revenue	142,302	46,867
Commissions	24,439	16,022
Other	29,792	11,137
Total noninterest income	$ 744,180	$ 301,934

Noninterest Income - Gains and

Noninterest Income - Gains and Losses on Investments (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Other Income and Expenses [Abstract]
Total net gains on non-marketable and other equity securities	$ 167,078	$ (15,110)
Gains on sales of available-for-sale securities, net	0	61,165
Gains on investment securities, net	$ 167,078	$ 46,055

Noninterest Income - Gains an_2

Noninterest Income - Gains and Losses on Derivatives (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Other Income and Expenses [Abstract]
Gains on exercises, net	$ 159,637	$ 19,193
Terminations	(249)	(326)
Changes in fair value, net	62,297	(5,472)
Gains on equity warrant assets, net	$ 221,685	$ 13,395

Noninterest Income - Client Inv

Noninterest Income - Client Investment Fees (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	$ 328,139	$ 222,440
Sweep money market fees
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	10,461	23,049
Asset management fees
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	9,020	9,137
Repurchase agreement fees
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	584	11,207
Client investment fees
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	$ 20,065	$ 43,393

Noninterest Income - Foreign Ex

Noninterest Income - Foreign Exchange Fees (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	$ 328,139	$ 222,440
Revenue not from contract with customer	416,041	79,494
Foreign exchange fees	57,393	47,505
Spot contract commissions
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	54,929	40,934
Forward contract commissions
Disaggregation of Revenue [Line Items]
Revenue not from contract with customer	2,348	6,339
Option premium fees
Disaggregation of Revenue [Line Items]
Revenue not from contract with customer	$ 116	$ 232

Noninterest Income - Credit Car

Noninterest Income - Credit Card Fees (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Disaggregation of Revenue [Line Items]
Card interchange fees, net	$ 22,848	$ 21,775
Revenue from contracts with customers	328,139	222,440
Revenue not from contract with customer	416,041	79,494
Total credit card fees	27,567	28,304
Merchant service fees
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	3,772	5,027
Card service fees
Disaggregation of Revenue [Line Items]
Revenue not from contract with customer	$ 947	$ 1,502

Noninterest Income - Lending Re

Noninterest Income - Lending Related Fees (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Accounts, Notes, Loans and Financing Receivable [Line Items]
Lending related fees	$ 15,657	$ 13,125
Unused commitment fees
Accounts, Notes, Loans and Financing Receivable [Line Items]
Lending related fees	12,256	8,406
Other
Accounts, Notes, Loans and Financing Receivable [Line Items]
Lending related fees	$ 3,401	$ 4,719

Noninterest Income - Investment

Noninterest Income - Investment Banking Revenue (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Investment banking revenue:
Underwriting fees	$ 125,076	$ 31,290
Advisory fees	4,450	15,487
Private placements and other	12,776	90
Total investment banking revenue	$ 142,302	$ 46,867

Noninterest Income - Summary _2

Noninterest Income - Summary of Other Noninterest Income (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Trading Activity, Gains and Losses, Net [Line Items]
Revenue from contracts with customers	$ 328,139	$ 222,440
Net gains on revaluation of foreign currency instruments, net of foreign exchange forward contracts	(952)	(244)
Other service revenue	16,185	3,473
Other	29,792	11,137
Fund management fees
Trading Activity, Gains and Losses, Net [Line Items]
Revenue from contracts with customers	$ 14,559	$ 7,908

Noninterest Income - Disaggrega

Noninterest Income - Disaggregation of Revenue (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	$ 328,139	$ 222,440
Revenues outside the scope of ASC 606	416,041	79,494
Noninterest income	744,180	301,934
Other Items
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	1,017	988
Revenues outside the scope of ASC 606	343,933	65,617
Noninterest income	344,950	66,605
Global Commercial Bank
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	144,760	149,803
Revenues outside the scope of ASC 606	13,911	17,031
Noninterest income	158,671	166,834
SVB Private Bank
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	993	852
Revenues outside the scope of ASC 606	5	48
Noninterest income	998	900
SVB Capital
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	13,188	6,478
Revenues outside the scope of ASC 606	55,406	(1,560)
Noninterest income	68,594	4,918
SVB Leerink
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	168,181	64,319
Revenues outside the scope of ASC 606	2,786	(1,642)
Noninterest income	170,967	62,677
Investment banking revenue
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	20,065	43,393
Investment banking revenue \| Other Items
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	0	0
Investment banking revenue \| Global Commercial Bank
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	19,253	42,736
Investment banking revenue \| SVB Private Bank
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	812	657
Investment banking revenue \| SVB Capital
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	0	0
Investment banking revenue \| SVB Leerink
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	0	0
Spot contract commissions
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	54,929	40,934
Spot contract commissions \| Other Items
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	168	98
Spot contract commissions \| Global Commercial Bank
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	54,603	40,675
Spot contract commissions \| SVB Private Bank
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	158	161
Spot contract commissions \| SVB Capital
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	0	0
Spot contract commissions \| SVB Leerink
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	0	0
Card interchange fees, gross
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	41,564	36,297
Card interchange fees, gross \| Other Items
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	267	566
Card interchange fees, gross \| Global Commercial Bank
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	41,293	35,724
Card interchange fees, gross \| SVB Private Bank
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	4	7
Card interchange fees, gross \| SVB Capital
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	0	0
Card interchange fees, gross \| SVB Leerink
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	0	0
Merchant service fees
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	3,772	5,027
Merchant service fees \| Other Items
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	0	0
Merchant service fees \| Global Commercial Bank
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	3,772	5,027
Merchant service fees \| SVB Private Bank
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	0	0
Merchant service fees \| SVB Capital
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	0	0
Merchant service fees \| SVB Leerink
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	0	0
Deposit service charges
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	25,151	24,589
Deposit service charges \| Other Items
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	582	324
Deposit service charges \| Global Commercial Bank
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	24,550	24,238
Deposit service charges \| SVB Private Bank
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	19	27
Deposit service charges \| SVB Capital
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	0	0
Deposit service charges \| SVB Leerink
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	0	0
Investment banking revenue
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	142,302	46,867
Investment banking revenue \| Other Items
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	0	0
Investment banking revenue \| Global Commercial Bank
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	0	0
Investment banking revenue \| SVB Private Bank
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	0	0
Investment banking revenue \| SVB Capital
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	0	0
Investment banking revenue \| SVB Leerink
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	142,302	46,867
Commissions
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	24,439	16,022
Commissions \| Other Items
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	0	0
Commissions \| Global Commercial Bank
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	0	0
Commissions \| SVB Private Bank
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	0	0
Commissions \| SVB Capital
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	0	0
Commissions \| SVB Leerink
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	24,439	16,022
Fund management fees
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	14,559	7,908
Fund management fees \| Other Items
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	0	0
Fund management fees \| Global Commercial Bank
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	0	0
Fund management fees \| SVB Private Bank
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	0	0
Fund management fees \| SVB Capital
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	13,119	6,478
Fund management fees \| SVB Leerink
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	1,440	1,430
Performance fees
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	69
Performance fees \| Other Items
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	0
Performance fees \| Global Commercial Bank
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	0
Performance fees \| SVB Private Bank
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	0
Performance fees \| SVB Capital
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	69
Performance fees \| SVB Leerink
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	0
Correspondent bank rebates
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	1,289	1,403
Correspondent bank rebates \| Other Items
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	0	0
Correspondent bank rebates \| Global Commercial Bank
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	1,289	1,403
Correspondent bank rebates \| SVB Private Bank
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	0	0
Correspondent bank rebates \| SVB Capital
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	0	0
Correspondent bank rebates \| SVB Leerink
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	$ 0	$ 0

Other Noninterest Expense - Sum

Other Noninterest Expense - Summary of Other Noninterest Expense (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Other Income and Expenses [Abstract]
Lending and other client related processing costs	$ 7,516	$ 9,158
Correspondent bank fees	4,301	3,986
Investment banking activities	6,730	3,030
Trade order execution costs	2,988	2,745
Data processing services	4,606	3,454
Telephone	1,872	2,227
Dues and publications	1,103	1,130
Postage and supplies	570	856
Other	15,770	14,117
Total other noninterest expense	$ 45,456	$ 40,703

Segment Reporting - Additional

Segment Reporting - Additional Information (Details)	3 Months Ended
Segment Reporting - Additional Information (Details)	Mar. 31, 2021Segment
Segment Reporting [Abstract]
Number of reportable segments	4

Segment Reporting - Segment Inf

Segment Reporting - Segment Information (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Segment Reporting Information [Line Items]
Net interest income	$ 659,579	$ 524,137
Provision for credit losses	(18,679)	(243,480)
Noninterest income	744,180	301,934
Noninterest expense	(636,001)	(399,585)
Income before income tax expense	749,079	183,006
Total average loans, amortized cost	46,281,476	33,660,728
Total average assets	124,814,608	72,407,168
Total average deposits	110,608,414	61,808,231
Global Commercial Bank
Segment Reporting Information [Line Items]
Noninterest income	158,671	166,834
SVB Private Bank
Segment Reporting Information [Line Items]
Noninterest income	998	900
SVB Capital
Segment Reporting Information [Line Items]
Noninterest income	68,594	4,918
SVB Leerink
Segment Reporting Information [Line Items]
Noninterest income	170,967	62,677
Operating segments \| Global Commercial Bank
Segment Reporting Information [Line Items]
Net interest income	618,609	463,835
Provision for credit losses	(44,503)	(194,411)
Noninterest income	158,671	166,834
Noninterest expense	(277,763)	(224,855)
Income before income tax expense	455,014	211,403
Total average loans, amortized cost	39,286,744	29,137,484
Total average assets	108,927,856	61,813,129
Total average deposits	106,267,572	59,217,433
Operating segments \| SVB Private Bank
Segment Reporting Information [Line Items]
Net interest income	27,025	15,164
Provision for credit losses	8,567	(54,490)
Noninterest income	998	900
Noninterest expense	(12,958)	(10,090)
Income before income tax expense	23,632	(48,516)
Total average loans, amortized cost	4,977,080	3,857,478
Total average assets	5,028,004	3,892,400
Total average deposits	3,292,673	1,922,663
Operating segments \| SVB Capital
Segment Reporting Information [Line Items]
Net interest income	2	21
Provision for credit losses	0	0
Noninterest income	68,594	4,918
Noninterest expense	(15,233)	(8,585)
Income before income tax expense	53,363	(3,646)
Total average loans, amortized cost	0	0
Total average assets	576,705	447,201
Total average deposits	0	0
Operating segments \| SVB Leerink
Segment Reporting Information [Line Items]
Net interest income	166	201
Provision for credit losses	0	0
Noninterest income	170,967	62,677
Noninterest expense	(136,352)	(62,037)
Income before income tax expense	34,781	841
Total average loans, amortized cost	0	0
Total average assets	767,300	483,648
Total average deposits	0	0
Other Items
Segment Reporting Information [Line Items]
Net interest income	13,777	44,916
Provision for credit losses	17,257	5,421
Noninterest income	344,950	66,605
Noninterest expense	(193,695)	(94,018)
Income before income tax expense	182,289	22,924
Total average loans, amortized cost	2,017,652	665,766
Total average assets	9,514,743	5,770,790
Total average deposits	$ 1,048,169	$ 668,135

Segment Reporting - Segment I_2

Segment Reporting - Segment Information (Additional Information) (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020	Dec. 31, 2020
Segment Reporting Information [Line Items]
Goodwill	$ 142,685		$ 142,685
Operating segments \| Global Commercial Bank
Segment Reporting Information [Line Items]
Depreciation and amortization	6,800	$ 5,500
Operating segments \| SVB Leerink
Segment Reporting Information [Line Items]
Goodwill	$ 137,800

Off-Balance Sheet Arrangement_3

Off-Balance Sheet Arrangements, Guarantees and Other Commitments - Summary Information Related to Commitments to Extend Credit (Excluding Letters of Credit) (Details) - USD ($) $ in Thousands	Mar. 31, 2021	Dec. 31, 2020	Mar. 31, 2020	Dec. 31, 2019
Disclosure Off Balance Sheet Arrangements Guarantees And Other Commitments Additional Information [Abstract]
Loan commitments available for funding	$ 30,923,217	$ 28,975,133
Commercial and standby letters of credit	3,063,410	3,007,118
Total unfunded credit commitments	33,986,627	31,982,251
Financing Receivable, Allowance for Credit Loss [Line Items]
Allowance for credit losses: loans	391,751	447,765	$ 548,963	$ 304,924
Unfunded Credit Commitments
Financing Receivable, Allowance for Credit Loss [Line Items]
Allowance for credit losses: loans	$ 104,750	$ 120,796	$ 84,690	$ 67,656

Off-Balance Sheet Arrangement_4

Off-Balance Sheet Arrangements, Guarantees and Other Commitments - Summary of Commercial and Standby Letters of Credit (Details) - USD ($) $ in Thousands	Mar. 31, 2021	Dec. 31, 2020
Guarantor Obligations [Line Items]
Expires in One Year or Less	$ 2,963,742
Expires After One Year	99,668
Total Amount Outstanding	3,063,410	$ 3,007,118
Maximum Amount of Future Payments	3,063,410
Financial standby letters of credit
Guarantor Obligations [Line Items]
Expires in One Year or Less	2,833,713
Expires After One Year	79,552
Total Amount Outstanding	2,913,265
Maximum Amount of Future Payments	2,913,265
Performance standby letters of credit
Guarantor Obligations [Line Items]
Expires in One Year or Less	118,222
Expires After One Year	20,116
Total Amount Outstanding	138,338
Maximum Amount of Future Payments	138,338
Commercial letters of credit
Guarantor Obligations [Line Items]
Expires in One Year or Less	11,807
Expires After One Year	0
Total Amount Outstanding	11,807
Maximum Amount of Future Payments	$ 11,807

Off-Balance Sheet Arrangement_5

Off-Balance Sheet Arrangements, Guarantees and Other Commitments - Summary of Commercial and Standby Letters of Credit (Additional Information) (Details) - Standby Letter of Credit - USD ($) $ in Millions	Mar. 31, 2021	Dec. 31, 2020
Commitments and Contingencies Disclosure [Line Items]
Deferred fees	$ 17	$ 16.9
Collateral in the form of cash	$ 1,700

Off-Balance Sheet Arrangement_6

Off-Balance Sheet Arrangements, Guarantees and Other Commitments - Total Capital Commitments, Unfunded Capital Commitments, and Our Ownership in Each Fund (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2021USD ($)
Venture Capital and Private Equity Fund Investments [Line Items]
SVBFG Unfunded Commitments	$ 4,233
Capital Preferred Return Fund, LP
Venture Capital and Private Equity Fund Investments [Line Items]
SVBFG Unfunded Commitments	1,519
Growth Partners, LP
Venture Capital and Private Equity Fund Investments [Line Items]
SVBFG Unfunded Commitments	2,518
Strategic Investors Fund, LP
Venture Capital and Private Equity Fund Investments [Line Items]
SVBFG Unfunded Commitments	196
Parent Company
Venture Capital and Private Equity Fund Investments [Line Items]
SVBFG Capital Commitments	454,703
SVBFG Unfunded Commitments	20,095
Parent Company \| CP II, LP
Venture Capital and Private Equity Fund Investments [Line Items]
SVBFG Capital Commitments	1,200
SVBFG Unfunded Commitments	$ 162
SVBFG Ownership of each Fund	5.10%
Parent Company \| Strategic Investors Fund II, LP
Venture Capital and Private Equity Fund Investments [Line Items]
SVBFG Capital Commitments	$ 15,000
SVBFG Unfunded Commitments	$ 1,050
SVBFG Ownership of each Fund	8.60%
Parent Company \| Strategic Investors Fund III, LP
Venture Capital and Private Equity Fund Investments [Line Items]
SVBFG Capital Commitments	$ 15,000
SVBFG Unfunded Commitments	$ 1,275
SVBFG Ownership of each Fund	5.90%
Parent Company \| Strategic Investors Fund IV, LP
Venture Capital and Private Equity Fund Investments [Line Items]
SVBFG Capital Commitments	$ 12,239
SVBFG Unfunded Commitments	$ 2,325
SVBFG Ownership of each Fund	5.00%
Parent Company \| Strategic Investors Fund V funds
Venture Capital and Private Equity Fund Investments [Line Items]
SVBFG Capital Commitments	$ 515
SVBFG Unfunded Commitments	131
Parent Company \| Other venture capital and private equity fund investments
Venture Capital and Private Equity Fund Investments [Line Items]
SVBFG Capital Commitments	21,843
SVBFG Unfunded Commitments	2,795
Parent Company \| Debt funds (equity method accounting)
Venture Capital and Private Equity Fund Investments [Line Items]
SVBFG Capital Commitments	58,733
SVBFG Unfunded Commitments	211
Parent Company \| Other fund investments
Venture Capital and Private Equity Fund Investments [Line Items]
SVBFG Capital Commitments	277,515
SVBFG Unfunded Commitments	10,118
Parent Company \| Capital Preferred Return Fund, LP
Venture Capital and Private Equity Fund Investments [Line Items]
SVBFG Capital Commitments	12,688
SVBFG Unfunded Commitments	$ 0
SVBFG Ownership of each Fund	20.00%
Parent Company \| Growth Partners, LP
Venture Capital and Private Equity Fund Investments [Line Items]
SVBFG Capital Commitments	$ 24,670
SVBFG Unfunded Commitments	$ 1,340
SVBFG Ownership of each Fund	33.00%
Parent Company \| Strategic Investors Fund, LP
Venture Capital and Private Equity Fund Investments [Line Items]
SVBFG Capital Commitments	$ 15,300
SVBFG Unfunded Commitments	$ 688
SVBFG Ownership of each Fund	12.60%

Off-Balance Sheet Arrangement_7

Off-Balance Sheet Arrangements, Guarantees and Other Commitments - Total Capital Commitments, Unfunded Capital Commitments, and Our Ownership in Each Fund (Additional Information) (Details) - Investment	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Upper Limit
Venture Capital and Private Equity Fund Investments [Line Items]
Percentage of ownership	5.00%
Consolidated venture capital and private equity fund investments
Venture Capital and Private Equity Fund Investments [Line Items]
Commitments to invest, period from the inception of the fund	10 years
Call unrestricted, percentage of committed capital	100.00%
Consolidated venture capital and private equity fund investments \| Lower Limit
Venture Capital and Private Equity Fund Investments [Line Items]
Expected commitment period to invest in venture capital and private equity funds (in years)	5 years
Consolidated venture capital and private equity fund investments \| Upper Limit
Venture Capital and Private Equity Fund Investments [Line Items]
Expected commitment period to invest in venture capital and private equity funds (in years)	7 years
Non-marketable securities \| Consolidated venture capital and private equity fund investments \| Equity method accounting \| CP II, LP
Venture Capital and Private Equity Fund Investments [Line Items]
Percentage of ownership	5.10%	5.10%
Non-marketable securities \| Consolidated venture capital and private equity fund investments \| Equity method accounting \| Other fund investments
Venture Capital and Private Equity Fund Investments [Line Items]
Number of other funds with investment commitments	167
Non-marketable securities \| Consolidated venture capital and private equity fund investments \| Equity method accounting \| Other fund investments \| Upper Limit
Venture Capital and Private Equity Fund Investments [Line Items]
Percentage of ownership	5.00%
Non-marketable securities \| Consolidated venture capital and private equity fund investments \| Direct ownership interest \| Equity method accounting \| CP II, LP
Venture Capital and Private Equity Fund Investments [Line Items]
Percentage of ownership	1.30%
Non-marketable securities \| Consolidated venture capital and private equity fund investments \| Indirect ownership interest \| Equity method accounting \| CP II, LP
Venture Capital and Private Equity Fund Investments [Line Items]
Percentage of ownership	3.80%

Off-Balance Sheet Arrangement_8

Off-Balance Sheet Arrangements, Guarantees and Other Commitments - Remaining Unfunded Commitments to Venture Capital or Private Equity Funds by our Consolidated Managed Funds (Details) $ in Thousands	Mar. 31, 2021USD ($)
Commitments and Contingencies Disclosure [Line Items]
Unfunded Commitments	$ 4,233
Strategic Investors Fund, LP
Commitments and Contingencies Disclosure [Line Items]
Unfunded Commitments	196
Capital Preferred Return Fund, LP
Commitments and Contingencies Disclosure [Line Items]
Unfunded Commitments	1,519
Growth Partners, LP
Commitments and Contingencies Disclosure [Line Items]
Unfunded Commitments	$ 2,518

Income Taxes (Details)

Income Taxes (Details) $ in Millions	Mar. 31, 2021USD ($)
Income Tax Disclosure [Abstract]
Unrecognized tax benefits	$ 19.7
Income tax reduction from recognized tax benefit	$ 15.6

Fair Value of Financial Instr_3

Fair Value of Financial Instruments - Assets and Liabilities Measured at Fair Value on a Recurring Basis (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2021USD ($)	Dec. 31, 2020USD ($)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Carrying Value	$ 25,986,471	$ 30,912,438
Derivative Assets	305,306	284,831
Derivative Liabilities	271,486	237,479
Client interest rate derivatives
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative Assets	65,123	67,854
Derivative Liabilities	68,954	26,646
Derivatives not designated as hedging instruments
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative Assets	549,640	488,269
Derivative Liabilities	271,486	237,479
Derivatives not designated as hedging instruments \| Equity warrant assets \| Other assets
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative Assets	244,334	203,438
Derivatives not designated as hedging instruments \| Client interest rate derivatives \| Other assets
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative Assets	65,123	67,854
Derivatives not designated as hedging instruments \| Client interest rate derivatives \| Other liabilities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative Liabilities	68,954	26,646
U.S. treasury securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Carrying Value	4,438,396	4,469,728
U.S. agency debentures
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Carrying Value	226,095	237,307
Foreign government debt securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Carrying Value	23,450	24,492
Residential mortgage-backed securities \| Agency-issued mortgage-backed securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Carrying Value	12,514,911	13,503,681
Residential mortgage-backed securities \| Agency-issued collateralized mortgage obligations—fixed rate
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Carrying Value	7,256,626	8,106,564
Agency-issued commercial mortgage-backed securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Carrying Value	1,526,993	4,570,666
Recurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Carrying Value	25,986,471	30,912,438
Total assets	26,971,345	31,955,334
Total liabilities	271,486	237,479
Recurring \| Derivatives not designated as hedging instruments \| Foreign exchange contract \| Other assets
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative Assets	240,183	216,977
Recurring \| Derivatives not designated as hedging instruments \| Foreign exchange contract \| Other liabilities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative Liabilities	202,532	210,833
Recurring \| Derivatives not designated as hedging instruments \| Equity warrant assets \| Other assets
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative Assets	244,334	203,438
Recurring \| Derivatives not designated as hedging instruments \| Client interest rate derivatives \| Other assets
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative Assets	65,123	67,854
Recurring \| Derivatives not designated as hedging instruments \| Client interest rate derivatives \| Other liabilities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative Liabilities	68,954	26,646
Recurring \| Fair value accounting
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Non-marketable securities	435,234	554,627
Recurring \| Other securities \| Fair value accounting
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Non-marketable securities	160,810	280,804
Recurring \| U.S. treasury securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Carrying Value	4,438,396	4,469,728
Recurring \| U.S. agency debentures
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Carrying Value	226,095	237,307
Recurring \| Foreign government debt securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Carrying Value	23,450	24,492
Recurring \| Residential mortgage-backed securities \| Agency-issued mortgage-backed securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Carrying Value	12,514,911	13,503,681
Recurring \| Residential mortgage-backed securities \| Agency-issued collateralized mortgage obligations—fixed rate
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Carrying Value	7,256,626	8,106,564
Recurring \| Agency-issued commercial mortgage-backed securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Carrying Value	1,526,993	4,570,666
Recurring \| Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Carrying Value	4,461,846	4,494,220
Total assets	4,500,099	4,537,564
Total liabilities	0	0
Recurring \| Level 1 \| Derivatives not designated as hedging instruments \| Foreign exchange contract \| Other assets
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative Assets	0	0
Recurring \| Level 1 \| Derivatives not designated as hedging instruments \| Foreign exchange contract \| Other liabilities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative Liabilities	0	0
Recurring \| Level 1 \| Derivatives not designated as hedging instruments \| Equity warrant assets \| Other assets
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative Assets	0	0
Recurring \| Level 1 \| Derivatives not designated as hedging instruments \| Client interest rate derivatives \| Other assets
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative Assets	0	0
Recurring \| Level 1 \| Derivatives not designated as hedging instruments \| Client interest rate derivatives \| Other liabilities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative Liabilities	0	0
Recurring \| Level 1 \| Fair value accounting
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Non-marketable securities	38,253	43,344
Recurring \| Level 1 \| Other securities \| Fair value accounting
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Non-marketable securities	38,253	43,344
Recurring \| Level 1 \| U.S. treasury securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Carrying Value	4,438,396	4,469,728
Recurring \| Level 1 \| U.S. agency debentures
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Carrying Value	0	0
Recurring \| Level 1 \| Foreign government debt securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Carrying Value	23,450	24,492
Recurring \| Level 1 \| Residential mortgage-backed securities \| Agency-issued mortgage-backed securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Carrying Value	0	0
Recurring \| Level 1 \| Residential mortgage-backed securities \| Agency-issued collateralized mortgage obligations—fixed rate
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Carrying Value	0	0
Recurring \| Level 1 \| Agency-issued commercial mortgage-backed securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Carrying Value	0	0
Recurring \| Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Carrying Value	21,524,625	26,418,218
Total assets	21,963,440	26,951,730
Total liabilities	271,486	237,479
Recurring \| Level 2 \| Derivatives not designated as hedging instruments \| Foreign exchange contract \| Other assets
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative Assets	240,183	216,977
Recurring \| Level 2 \| Derivatives not designated as hedging instruments \| Foreign exchange contract \| Other liabilities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative Liabilities	202,532	210,833
Recurring \| Level 2 \| Derivatives not designated as hedging instruments \| Equity warrant assets \| Other assets
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative Assets	10,952	11,221
Recurring \| Level 2 \| Derivatives not designated as hedging instruments \| Client interest rate derivatives \| Other assets
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative Assets	65,123	67,854
Recurring \| Level 2 \| Derivatives not designated as hedging instruments \| Client interest rate derivatives \| Other liabilities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative Liabilities	68,954	26,646
Recurring \| Level 2 \| Fair value accounting
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Non-marketable securities	122,557	237,460
Recurring \| Level 2 \| Other securities \| Fair value accounting
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Non-marketable securities	122,557	237,460
Recurring \| Level 2 \| U.S. treasury securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Carrying Value	0	0
Recurring \| Level 2 \| U.S. agency debentures
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Carrying Value	226,095	237,307
Recurring \| Level 2 \| Foreign government debt securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Carrying Value	0	0
Recurring \| Level 2 \| Residential mortgage-backed securities \| Agency-issued mortgage-backed securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Carrying Value	12,514,911	13,503,681
Recurring \| Level 2 \| Residential mortgage-backed securities \| Agency-issued collateralized mortgage obligations—fixed rate
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Carrying Value	7,256,626	8,106,564
Recurring \| Level 2 \| Agency-issued commercial mortgage-backed securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Carrying Value	1,526,993	4,570,666
Recurring \| Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Carrying Value	0	0
Total assets	233,382	192,217
Total liabilities	0	0
Recurring \| Level 3 \| Derivatives not designated as hedging instruments \| Foreign exchange contract \| Other assets
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative Assets	0	0
Recurring \| Level 3 \| Derivatives not designated as hedging instruments \| Foreign exchange contract \| Other liabilities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative Liabilities	0	0
Recurring \| Level 3 \| Derivatives not designated as hedging instruments \| Equity warrant assets \| Other assets
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative Assets	233,382	192,217
Recurring \| Level 3 \| Derivatives not designated as hedging instruments \| Client interest rate derivatives \| Other assets
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative Assets	0	0
Recurring \| Level 3 \| Derivatives not designated as hedging instruments \| Client interest rate derivatives \| Other liabilities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative Liabilities	0	0
Recurring \| Level 3 \| Fair value accounting
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Non-marketable securities	0	0
Recurring \| Level 3 \| Other securities \| Fair value accounting
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Non-marketable securities	0	0
Recurring \| Level 3 \| U.S. treasury securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Carrying Value	0	0
Recurring \| Level 3 \| U.S. agency debentures
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Carrying Value	0	0
Recurring \| Level 3 \| Foreign government debt securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Carrying Value	0	0
Recurring \| Level 3 \| Residential mortgage-backed securities \| Agency-issued mortgage-backed securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Carrying Value	0	0
Recurring \| Level 3 \| Residential mortgage-backed securities \| Agency-issued collateralized mortgage obligations—fixed rate
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Carrying Value	0	0
Recurring \| Level 3 \| Agency-issued commercial mortgage-backed securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Carrying Value	0	0
Recurring \| Measured at net asset value \| Consolidated venture capital and private equity fund investments \| Fair value accounting
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Non-marketable securities	$ 274,424	$ 273,823
Lower Limit \| Other equity securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value inputs, sales restriction, period	3 years
Lower Limit \| Level 3 \| Equity warrant asset, public portfolio
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value inputs, sales restriction, period	3 months
Upper Limit \| Other equity securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value inputs, sales restriction, period	6 months
Upper Limit \| Level 3 \| Equity warrant asset, public portfolio
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value inputs, sales restriction, period	6 months
Sales restrictions discount \| Level 3 \| Equity warrant asset, public portfolio
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Measurement input	0.100
Sales restrictions discount \| Lower Limit \| Other equity securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Measurement input	0.10
Sales restrictions discount \| Lower Limit \| Level 3 \| Equity warrant asset, public portfolio
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Measurement input	0.10	0.100
Sales restrictions discount \| Upper Limit \| Other equity securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Measurement input	0.20
Sales restrictions discount \| Upper Limit \| Level 3 \| Equity warrant asset, public portfolio
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Measurement input	0.20	0.200

Fair Value of Financial Instr_4

Fair Value of Financial Instruments - Additional Information about Level 3 Assets Measured at Fair Value on a Recurring Basis (Details) - Recurring - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Beginning Balance	$ 192,217	$ 161,172
Total Net Gains Included in Net Income	219,827	14,606
Purchases	0	0
Sales/Exits	(181,413)	(30,039)
Issuances	6,565	4,519
Other	(39)	0
Transfers Out of Level 3	(3,775)	(266)
Ending Balance	233,382	149,992
Equity warrant assets
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Beginning Balance	192,217	161,038
Total Net Gains Included in Net Income	219,827	14,601
Purchases	0	0
Sales/Exits	(181,413)	(30,034)
Issuances	6,565	4,519
Other	(39)	0
Transfers Out of Level 3	(3,775)	(266)
Ending Balance	$ 233,382	149,858
Non-marketable securities \| Unconsolidated venture capital and private equity fund investments
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Beginning Balance		134
Total Net Gains Included in Net Income		5
Purchases		0
Sales/Exits		(5)
Issuances		0
Other		0
Transfers Out of Level 3		0
Ending Balance		$ 134

Fair Value of Financial Instr_5

Fair Value of Financial Instruments - Unrealized Gains Included in Earnings Attributable to Level 3 Assets Held (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Unrealized Gains (Losses) [Line Items]
Unrealized gains included in earnings attributable to Level 3 assets still held	$ 60,639	$ (4,145)
Equity warrant assets \| Other assets
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Unrealized Gains (Losses) [Line Items]
Unrealized gains included in earnings attributable to Level 3 assets still held	$ 60,639	$ (4,145)

Fair Value of Financial Instr_6

Fair Value of Financial Instruments - Quantitative Information About Significant Unobservable Inputs (Details) - Level 3 - USD ($) $ in Thousands	Mar. 31, 2021	Dec. 31, 2020
Equity warrant asset, public portfolio
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Fair value	$ 28	$ 1,036
Equity warrant assets, private portfolio
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Fair value	$ 233,354	$ 191,181

Fair Value of Financial Instr_7

Fair Value of Financial Instruments - Quantitative Information About Significant Unobservable Inputs (Additional Information) (Details)	3 Months Ended
	Mar. 31, 2021	Dec. 31, 2020
Equity warrant assets, private portfolio
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Weighted average remaining life	2 years 7 months 6 days
Weighted average remaining life	6 years 7 months 6 days
Sales restrictions discount \| Level 3 \| Equity warrant asset, public portfolio
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Measurement input	0.100
Sales restrictions discount \| Lower Limit \| Other equity securities
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Measurement input	0.10
Sales restrictions discount \| Lower Limit \| Level 3 \| Equity warrant asset, public portfolio
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Measurement input	0.10	0.100
Sales restrictions discount \| Upper Limit \| Other equity securities
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Measurement input	0.20
Sales restrictions discount \| Upper Limit \| Level 3 \| Equity warrant asset, public portfolio
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Measurement input	0.20	0.200
Sales restrictions discount \| Weighted Average \| Level 3 \| Equity warrant asset, public portfolio
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Measurement input	0.100	0.102
Volatility \| Lower Limit \| Level 3 \| Equity warrant asset, public portfolio
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Measurement input	0.474	0.460
Volatility \| Lower Limit \| Level 3 \| Equity warrant assets, private portfolio
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Measurement input	0.250	0.244
Volatility \| Upper Limit \| Level 3 \| Equity warrant asset, public portfolio
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Measurement input		0.568
Volatility \| Upper Limit \| Level 3 \| Equity warrant assets, private portfolio
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Measurement input	0.580	0.568
Volatility \| Weighted Average \| Level 3 \| Equity warrant asset, public portfolio
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Measurement input	0.474	0.491
Volatility \| Weighted Average \| Level 3 \| Equity warrant assets, private portfolio
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Measurement input	0.457	0.432
Risk-Free interest rate \| Lower Limit \| Level 3 \| Equity warrant asset, public portfolio
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Measurement input	0.009	0.003
Risk-Free interest rate \| Lower Limit \| Level 3 \| Equity warrant assets, private portfolio
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Measurement input	0.0001	0.0001
Risk-Free interest rate \| Upper Limit \| Level 3 \| Equity warrant asset, public portfolio
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Measurement input	0.016	0.009
Risk-Free interest rate \| Upper Limit \| Level 3 \| Equity warrant assets, private portfolio
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Measurement input	0.0117	0.0052
Risk-Free interest rate \| Weighted Average \| Level 3 \| Equity warrant asset, public portfolio
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Measurement input	0.011	0.006
Risk-Free interest rate \| Weighted Average \| Level 3 \| Equity warrant assets, private portfolio
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Measurement input	0.003	0.001
Marketability discount \| Level 3 \| Equity warrant assets, private portfolio
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Measurement input	0.217	0.2063
Marketability discount \| Weighted Average \| Level 3 \| Equity warrant assets, private portfolio
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Measurement input	0.217	0.206
Remaining life assumption \| Level 3 \| Equity warrant assets, private portfolio
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Measurement input	0.400	0.400
Remaining life assumption \| Weighted Average \| Level 3 \| Equity warrant assets, private portfolio
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Measurement input	0.400	0.400

Fair Value of Financial Instr_8

Fair Value of Financial Instruments - Summary of Estimated Fair Values of Financial Instruments not Carried at Fair Value (Details) - USD ($) $ in Thousands	Mar. 31, 2021	Dec. 31, 2020
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Held-to-maturity securities	$ 41,186,735	$ 17,216,871
Net loans	47,283,415	44,733,723
Carrying Amount
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash and cash equivalents	21,254,859	17,674,763
Held-to-maturity securities	41,164,620	16,592,153
Non-marketable securities not measured at net asset value	379,224	240,761
Non-marketable securities measured at net asset value	426,306	390,658
FHLB and Federal Reserve Bank stock	83,355	61,232
Non-maturity deposits	123,454,403	101,293,346
Time deposits	695,703	688,461
Commitments to extend credit	0	0
Carrying Amount \| Short-term borrowings
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Short-term borrowings	38,434	20,553
Carrying Amount \| 3.50% Senior Notes
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Senior notes	348,441	348,348
Carrying Amount \| 3.125% Senior Notes
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Senior notes	495,387	495,280
Carrying Amount \| 1.800% Senior Notes
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Senior notes	494,355
Estimate of Fair Value Measurement
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash and cash equivalents	21,254,859	17,674,763
Held-to-maturity securities	41,186,735	17,216,871
Non-marketable securities not measured at net asset value	379,224	240,761
Non-marketable securities measured at net asset value	426,306	390,658
FHLB and Federal Reserve Bank stock	83,355	61,232
Non-maturity deposits	123,454,403	101,293,346
Time deposits	394,574	501,853
Commitments to extend credit	39,003	36,672
Estimate of Fair Value Measurement \| Short-term borrowings
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Short-term borrowings	38,434	20,553
Estimate of Fair Value Measurement \| 3.50% Senior Notes
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Senior notes	378,242	382,855
Estimate of Fair Value Measurement \| 3.125% Senior Notes
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Senior notes	521,205	563,840
Estimate of Fair Value Measurement \| 1.800% Senior Notes
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Senior notes	463,625
Estimate of Fair Value Measurement \| Level 1
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash and cash equivalents	21,254,859	17,674,763
Held-to-maturity securities	0	0
Non-marketable securities not measured at net asset value	0	0
Non-marketable securities measured at net asset value	0	0
FHLB and Federal Reserve Bank stock	0	0
Non-maturity deposits	123,454,403	101,293,346
Time deposits	0	0
Commitments to extend credit	0	0
Estimate of Fair Value Measurement \| Level 1 \| Short-term borrowings
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Short-term borrowings	0	0
Estimate of Fair Value Measurement \| Level 1 \| 3.50% Senior Notes
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Senior notes	0	0
Estimate of Fair Value Measurement \| Level 1 \| 3.125% Senior Notes
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Senior notes	0	0
Estimate of Fair Value Measurement \| Level 1 \| 1.800% Senior Notes
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Senior notes	0
Estimate of Fair Value Measurement \| Level 2
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash and cash equivalents	0	0
Held-to-maturity securities	41,186,735	17,216,871
Non-marketable securities not measured at net asset value	0	0
Non-marketable securities measured at net asset value	0	0
FHLB and Federal Reserve Bank stock	0	0
Non-maturity deposits	0	0
Time deposits	394,574	501,853
Commitments to extend credit	0	0
Estimate of Fair Value Measurement \| Level 2 \| Short-term borrowings
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Short-term borrowings	38,434	20,553
Estimate of Fair Value Measurement \| Level 2 \| 3.50% Senior Notes
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Senior notes	378,242	382,855
Estimate of Fair Value Measurement \| Level 2 \| 3.125% Senior Notes
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Senior notes	521,205	563,840
Estimate of Fair Value Measurement \| Level 2 \| 1.800% Senior Notes
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Senior notes	463,625
Estimate of Fair Value Measurement \| Level 3
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash and cash equivalents	0	0
Held-to-maturity securities	0	0
Non-marketable securities not measured at net asset value	379,224	240,761
Non-marketable securities measured at net asset value	0	0
FHLB and Federal Reserve Bank stock	83,355	61,232
Non-maturity deposits	0	0
Time deposits	0	0
Commitments to extend credit	39,003	36,672
Estimate of Fair Value Measurement \| Level 3 \| Short-term borrowings
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Short-term borrowings	0	0
Estimate of Fair Value Measurement \| Level 3 \| 3.50% Senior Notes
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Senior notes	0	0
Estimate of Fair Value Measurement \| Level 3 \| 3.125% Senior Notes
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Senior notes	0	0
Estimate of Fair Value Measurement \| Level 3 \| 1.800% Senior Notes
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Senior notes	0
Commercial loans \| Carrying Amount
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Net loans	42,264,653	39,886,296
Commercial loans \| Estimate of Fair Value Measurement
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Net loans	43,438,142	40,412,490
Commercial loans \| Estimate of Fair Value Measurement \| Level 1
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Net loans	0	0
Commercial loans \| Estimate of Fair Value Measurement \| Level 2
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Net loans	0	0
Commercial loans \| Estimate of Fair Value Measurement \| Level 3
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Net loans	43,438,142	40,412,490
Consumer loans \| Carrying Amount
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Net loans	5,018,762	4,847,427
Consumer loans \| Estimate of Fair Value Measurement
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Net loans	5,158,216	4,911,451
Consumer loans \| Estimate of Fair Value Measurement \| Level 1
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Net loans	0	0
Consumer loans \| Estimate of Fair Value Measurement \| Level 2
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Net loans	0	0
Consumer loans \| Estimate of Fair Value Measurement \| Level 3
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Net loans	$ 5,158,216	$ 4,911,451

Fair Value of Financial Instr_9

Fair Value of Financial Instruments - Summary of Estimated Fair Values of Investments and Remaining Unfunded Commitments for Each Major Category of Investments (Details) $ in Thousands	Mar. 31, 2021USD ($)
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]
Carrying Amount	$ 700,730
Fair Value	700,730
Unfunded Commitments	33,430
Non-marketable securities \| Consolidated venture capital and private equity fund investments \| Fair value accounting
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]
Carrying Amount	274,424
Fair Value	274,424
Unfunded Commitments	19,030
Non-marketable securities \| Consolidated venture capital and private equity fund investments \| Equity method accounting
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]
Carrying Amount	394,349
Fair Value	394,349
Unfunded Commitments	13,303
Non-marketable securities \| Debt funds \| Equity method accounting
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]
Carrying Amount	5,813
Fair Value	5,813
Unfunded Commitments	211
Non-marketable securities \| Other investments \| Equity method accounting
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]
Carrying Amount	26,144
Fair Value	26,144
Unfunded Commitments	$ 886

Fair Value of Financial Inst_10

Fair Value of Financial Instruments - Summary of Estimated Fair Values of Investments and Remaining Unfunded Commitments for Each Major Category of Investments (Textual) (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2021USD ($)
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]
Fair value	$ 700,730
Unfunded commitments	33,430
Non-marketable securities \| Venture capital and private equity fund investments \| Fair value accounting
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]
Fair value	274,424
Unfunded commitments	$ 19,030
Non-marketable securities \| Venture capital and private equity fund investments \| Fair value accounting \| Lower Limit
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]
Period distributions from fund investments to be received	10 years
Non-marketable securities \| Venture capital and private equity fund investments \| Fair value accounting \| Upper Limit
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]
Period distributions from fund investments to be received	13 years
Non-marketable securities \| Venture capital and private equity fund investments \| Equity method accounting
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]
Fair value	$ 394,349
Unfunded commitments	13,303
Non-marketable securities \| Venture capital and private equity fund investments \| Noncontrolling Interests \| Fair value accounting
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]
Fair value	70,800
Unfunded commitments	3,000
Non-marketable securities \| Other investments \| Equity method accounting
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]
Fair value	26,144
Unfunded commitments	$ 886
Non-marketable securities \| Other investments \| Equity method accounting \| Lower Limit
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]
Period distributions from fund investments to be received	5 years
Non-marketable securities \| Other investments \| Equity method accounting \| Upper Limit
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]
Period distributions from fund investments to be received	8 years

Subsequent Events (Details)

Subsequent Events (Details) - USD ($) $ in Millions	Apr. 14, 2021	Mar. 31, 2021	Dec. 31, 2020
Subsequent Event [Line Items]
Common stock, shares, issued		54,001,797	51,888,463
Subsequent Event \| Common Stock
Subsequent Event [Line Items]
Total gross proceeds from the offering before underwriting discounts, commissions and offering expenses	$ 1,150
Subsequent Event \| Over-Allotment Option \| Common Stock
Subsequent Event [Line Items]
Common stock, shares, issued	300,000
Net proceeds after deducting discounts and commissions	$ 146