IDACORP (IDA) 10-Q4 May 232023 Q1 Quarterly reportFinancial data

Company Profile

Cover

Cover - shares	3 Months Ended
Cover - shares	Mar. 31, 2023	Apr. 28, 2023
Document Information
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Mar. 31, 2023
Document Transition Report	false
Entity File Number	1-14465
Entity Registrant Name	IDACORP, Inc.
Entity Tax Identification Number	82-0505802
Entity Address, Address Line One	1221 W. Idaho Street
Entity Address, City or Town	Boise,
Entity Address, State or Province	ID
Entity Address, Postal Zip Code	83702-5627
City Area Code	(208)
Local Phone Number	388-2200
Entity Current Reporting Status	Yes
Entity Incorporation, State or Country Code	ID
Entity Interactive Data Current	Yes
Entity Filer Category	Large Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Shell Company	false
Title of 12(b) Security	Common Stock
Trading Symbol	IDA
Security Exchange Name	NYSE
Entity Common Stock, Shares Outstanding		50,607,611
Entity Central Index Key	0001057877
Current Fiscal Year End Date	--12-31
Document Fiscal Year Focus	2023
Document Fiscal Period Focus	Q1
Amendment Flag	false
Entity Information, Former Legal or Registered Name	None
Idaho Power Company [Member]
Document Information
Entity File Number	1-3198
Entity Registrant Name	Idaho Power Company
Entity Tax Identification Number	82-0130980
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Non-accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Common Stock, Shares Outstanding		39,150,812
Entity Central Index Key	0000049648
Current Fiscal Year End Date	--12-31
Document Fiscal Year Focus	2023
Document Fiscal Period Focus	Q1
Amendment Flag	false

Consolidated Statements of Inco

Consolidated Statements of Income Statement - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Operating Revenues:
Electric utility revenues	$ 429,338	$ 343,921
Other	321	367
Total operating revenues	429,659	344,288
Operating Expenses:
Purchased power	171,093	85,424
Fuel expense	89,080	45,702
Power cost adjustment	(51,337)	(400)
Other operations and maintenance	92,041	92,086
Energy efficiency programs	5,215	6,589
Depreciation	45,391	44,457
Other electric utility operating expenses	9,028	8,901
Total electric utility operating expenses	360,511	282,759
Other	1,045	861
Total operating expenses	361,556	283,620
Operating Income	68,103	60,668
Nonoperating (Income) Expense:
Allowance for equity funds used during construction	(9,908)	(9,123)
Earnings of unconsolidated equity-method investments	(2,454)	(2,308)
Interest on long-term debt	24,968	21,069
Other interest	4,755	3,815
Allowance for borrowed funds used during construction	(4,228)	(3,385)
Other income, net	(8,149)	(1,610)
Total nonoperating expense, net	4,984	8,458
Income Before Income Taxes	63,119	52,210
Income Tax Expense	7,095	6,026
Net Income	56,024	46,184
Loss attributable to noncontrolling interests	74	76
Net Income Attributable to IDACORP, Inc.	$ 56,098	$ 46,260
Weighted-average common shares outstanding - basic (in shares)	50,688	50,632
Weighted-average common shares outstanding - diluted (in shares)	50,723	50,660
Earnings Per Share of Common Stock:
Earnings attributable to IDACORP, Inc. - basic (in dollars per share)	$ 1.11	$ 0.91
Earnings attributable to IDACORP, Inc. - diluted (in dollars per share)	$ 1.11	$ 0.91

Consolidated Statements of Comp

Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Statement of Comprehensive Income [Abstract]
Net income	$ 56,024	$ 46,184
Other Comprehensive Income:
Unfunded pension liability adjustment, net of tax of $51, and $290, respectively	146	837
Total Comprehensive Income	56,170	47,021
Loss attributable to noncontrolling interests	74	76
Comprehensive Income Attributable to IDACORP, Inc.	$ 56,244	$ 47,097

Consolidated Balance Sheets Sta

Consolidated Balance Sheets Statement - USD ($) $ in Thousands	Mar. 31, 2023	Dec. 31, 2022
Current Assets:
Cash and cash equivalents	$ 357,823	$ 177,577
Receivables:
Customer	101,081	114,173
Other	72,010	51,179
Income taxes receivable	0	13,734
Accrued unbilled revenues	70,690	84,862
Materials and supplies (at average cost)	110,037	92,461
Fuel stock (at average cost)	10,718	14,762
Prepayments	19,022	24,517
Current regulatory assets	248,693	80,049
Other	859	40,339
Total current assets	990,933	693,653
Investments	120,999	121,352
Property, Plant and Equipment:
Utility plant in service	6,876,028	6,828,467
Accumulated provision for depreciation	(2,509,399)	(2,465,279)
Utility plant in service - net	4,366,629	4,363,188
Construction work in progress	896,794	785,706
Utility plant held for future use	8,778	7,130
Other property, net of accumulated depreciation	16,824	16,946
Property, plant and equipment - net	5,289,025	5,172,970
Other Assets:
Company-owned life insurance	75,949	73,944
Regulatory assets	1,336,194	1,421,912
Other	65,792	59,427
Total other assets	1,477,935	1,555,283
Total assets	7,878,892	7,543,258
Current Liabilities:
Accounts payable	201,838	292,719
Taxes accrued	17,799	8,565
Interest accrued	21,540	24,060
Accrued compensation	42,340	59,265
Current regulatory liabilities	6,055	63,957
Advances from customers	87,479	72,222
Other	30,519	27,777
Total current liabilities	532,570	548,565
Other Liabilities:
Deferred Income Tax	867,649	873,916
Regulatory liabilities	799,925	796,644
Pension and other postretirement benefits	244,043	238,037
Other	121,297	77,336
Total other liabilities	2,032,914	1,985,933
Long-Term Debt	2,483,051	2,194,145
Commitments and Contingencies
Equity:
Common stock	882,104	882,189
Retained earnings	1,953,727	1,937,972
Accumulated other comprehensive loss	(12,776)	(12,922)
Total IDACORP, Inc. shareholders’ equity	2,823,055	2,807,239
Noncontrolling interests	7,302	7,376
Total equity	2,830,357	2,814,615
Total	$ 7,878,892	$ 7,543,258

Consolidated Statements of Cash

Consolidated Statements of Cash Flows - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Operating Activities:
Net income	$ 56,024	$ 46,184
Adjustments to reconcile net income to net cash (used in) provided by operating activities:
Depreciation and amortization	46,409	45,494
Deferred income taxes and investment tax credits	(7,854)	(2,517)
Changes in regulatory assets and liabilities	(56,396)	7,873
Pension and postretirement benefit plan expense	6,885	7,266
Contributions to pension and postretirement benefit plans	(1,308)	(997)
Earnings of unconsolidated equity-method investments	(2,454)	(2,308)
Distributions from equity-method investments	400	2,480
Allowance for equity funds used during construction	(9,908)	(9,123)
Other non-cash adjustments to net income, net	2,492	4,083
Change in:
Accounts receivable	(10,750)	11,748
Prepayments	4,363	3,278
Materials, supplies, and fuel stock	(13,531)	(4,762)
Accounts and wages payable	(112,468)	(44,989)
Taxes accrued/receivable	22,968	16,377
Other assets and liabilities	(15,271)	12,912
Net cash (used in) provided by operating activities	(90,399)	92,999
Investing Activities:
Additions to utility plant	(118,375)	(102,535)
Payments received from transmission project joint funding partners	3,123	1,299
Investments in affordable housing	135	(2,628)
Distributions from equity-method investments, return of investment	0	2,920
Purchases of equity securities	(755)	(20,988)
Purchases of held-to-maturity securities	(301)	(29,692)
Proceeds from the sale of equity securities	2,164	51,288
Other	4,853	2,049
Net cash used in investing activities	(109,156)	(98,287)
Financing Activities:
Issuance of long-term debt	522,000	50,000
Discount on issuance of long-term debt	(3,772)	0
Retirement of long-term debt	100,000	0
Dividends on common stock	(40,502)	(38,371)
Tax withholdings on net settlements of share-based awards	3,255	2,958
Other	5,330	(76)
Net cash provided by financing activities	379,801	8,595
Net increase in cash and cash equivalents	180,246	3,307
Cash and cash equivalents at beginning of the period	177,577	215,243
Cash and cash equivalents at end of the period	357,823	218,550
Supplemental Disclosure of Cash Flow Information:
Interest (net of amount capitalized)	27,276	25,306
Non-cash investing activities:
Additions to property, plant and equipment in accounts payable	$ 85,858	$ 52,137

Consolidated Statements of Equi

Consolidated Statements of Equity - USD ($) $ in Thousands	Total	Common Stock	Retained Earnings	Accumulated Other Comprehensive Loss	Noncontrolling Interests
Beginning balance at Dec. 31, 2021		$ 874,896	$ 1,833,580	$ (40,040)	$ 6,798
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Share-based compensation expense		3,102
Tax withholdings on net settlements of share-based awards		(2,958)
Other		27
Retained Earnings
Net Income Attributable to IDACORP, Inc.	$ 46,260		46,260
Common stock dividends			(38,196)
Accumulated Other Comprehensive (Loss) Income
Unfunded pension liability adjustment (net of tax)	837			837
Noncontrolling Interest [Abstract]
Net loss attributable to noncontrolling interests	(76)				76
Ending balance at Mar. 31, 2022		875,067	1,841,644	(39,203)	6,722
Accumulated Other Comprehensive (Loss) Income
Total IDACORP, Inc. shareholders’ equity			2,684,230	2,677,508
Total IDACORP, Inc. shareholders’ equity	2,807,239
Beginning balance at Dec. 31, 2022	2,814,615	882,189	1,937,972	(12,922)	7,376
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Share-based compensation expense		3,137
Tax withholdings on net settlements of share-based awards		(3,255)
Other		33
Retained Earnings
Net Income Attributable to IDACORP, Inc.	56,098		56,098
Common stock dividends			(40,343)
Accumulated Other Comprehensive (Loss) Income
Unfunded pension liability adjustment (net of tax)	146			146
Noncontrolling Interest [Abstract]
Net loss attributable to noncontrolling interests	(74)				74
Ending balance at Mar. 31, 2023	2,830,357	$ 882,104	1,953,727	(12,776)	$ 7,302
Accumulated Other Comprehensive (Loss) Income
Total IDACORP, Inc. shareholders’ equity	$ 2,823,055		$ 2,830,357	$ 2,823,055

Idaho Power Company Consolidate

Idaho Power Company Consolidated Statements of Income - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Regulated Operating Revenue
Electric utility revenues	$ 429,338	$ 343,921
Operating Expenses [Abstract]
Purchased power	171,093	85,424
Fuel expense	89,080	45,702
Power cost adjustment	(51,337)	(400)
Other operations and maintenance	92,041	92,086
Energy efficiency programs	5,215	6,589
Depreciation	45,391	44,457
Other electric utility operating expenses	9,028	8,901
Total electric utility operating expenses	360,511	282,759
Operating Income	68,103	60,668
Nonoperating (Income) Expense:
Allowance for equity funds used during construction	(9,908)	(9,123)
Earnings of unconsolidated equity-method investments	(2,454)	(2,308)
Interest on long-term debt	24,968	21,069
Other interest	4,755	3,815
Allowance for borrowed funds used during construction	(4,228)	(3,385)
Other income, net	(8,149)	(1,610)
Total nonoperating expense, net	4,984	8,458
Income Before Income Taxes	63,119	52,210
Income Tax Expense	7,095	6,026
Net Income	56,024	46,184
Idaho Power Company [Member]
Regulated Operating Revenue
Electric utility revenues	429,338	343,921
Operating Expenses [Abstract]
Purchased power	171,093	85,424
Fuel expense	89,080	45,702
Power cost adjustment	(51,337)	(400)
Other operations and maintenance	92,041	92,086
Energy efficiency programs	5,215	6,589
Depreciation	45,391	44,457
Other electric utility operating expenses	9,028	8,901
Total electric utility operating expenses	360,511	282,759
Operating Income	68,827	61,162
Nonoperating (Income) Expense:
Allowance for equity funds used during construction	(9,908)	(9,123)
Earnings of unconsolidated equity-method investments	(2,472)	(2,480)
Interest on long-term debt	24,968	21,069
Other interest	4,674	3,811
Allowance for borrowed funds used during construction	(4,228)	(3,385)
Other income, net	(7,527)	(1,641)
Total nonoperating expense, net	5,507	8,251
Income Before Income Taxes	63,320	52,911
Income Tax Expense	7,610	6,697
Net Income	$ 55,710	$ 46,214

Idaho Power Company Consolida_2

Idaho Power Company Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Net income	$ 56,024	$ 46,184
Other Comprehensive Income:
Unfunded pension liability adjustment, net of tax of $51, and $290, respectively	146	837
Total Comprehensive Income	56,170	47,021
Idaho Power Company [Member]
Net income	55,710	46,214
Other Comprehensive Income:
Unfunded pension liability adjustment, net of tax of $51, and $290, respectively	146	837
Total Comprehensive Income	$ 55,856	$ 47,051

Idaho Power Company Consolida_3

Idaho Power Company Consolidated Balance Sheet - USD ($) $ in Thousands	Mar. 31, 2023	Dec. 31, 2022
Current Assets:
Cash and cash equivalents	$ 357,823	$ 177,577
Receivables [Abstract]
Customer	101,081	114,173
Other	72,010	51,179
Income taxes receivable	0	13,734
Accrued unbilled revenues	70,690	84,862
Materials and supplies (at average cost)	110,037	92,461
Fuel stock (at average cost)	10,718	14,762
Prepayments	19,022	24,517
Current regulatory assets	248,693	80,049
Other	859	40,339
Total current assets	990,933	693,653
Investments	120,999	121,352
Property, Plant and Equipment [Abstract]
Utility plant in service	6,876,028	6,828,467
Public Utilities, Property, Plant and Equipment, Accumulated Depreciation	(2,509,399)	(2,465,279)
Utility plant in service - net	4,366,629	4,363,188
Construction work in progress	896,794	785,706
Utility plant held for future use	8,778	7,130
Other property, net of accumulated depreciation	16,824	16,946
Property, plant and equipment - net	5,289,025	5,172,970
Other Assets:
Company-owned life insurance	75,949	73,944
Regulatory assets	1,336,194	1,421,912
Other	65,792	59,427
Total other assets	1,477,935	1,555,283
Total assets	7,878,892	7,543,258
Current Liabilities:
Current maturities of long-term debt	125,000	0
Accounts payable	201,838	292,719
Taxes accrued	17,799	8,565
Interest accrued	21,540	24,060
Accrued compensation	42,340	59,265
Current regulatory liabilities	6,055	63,957
Advances from customers	87,479	72,222
Other	30,519	27,777
Total current liabilities	532,570	548,565
Other Liabilities [Abstract]
Deferred Income Tax	867,649	873,916
Regulatory liabilities	799,925	796,644
Pension and other postretirement benefits	244,043	238,037
Other	121,297	77,336
Total other liabilities	2,032,914	1,985,933
Long-Term Debt	2,483,051	2,194,145
Commitments and Contingencies
Equity [Abstract]
Common stock	882,104	882,189
Retained earnings	1,953,727	1,937,972
Accumulated other comprehensive loss	(12,776)	(12,922)
Total equity	2,830,357	2,814,615
Total	7,878,892	7,543,258
Idaho Power Company [Member]
Current Assets:
Cash and cash equivalents	329,938	108,933
Receivables [Abstract]
Customer	101,081	114,173
Other	71,751	50,754
Income taxes receivable	0	13,108
Accrued unbilled revenues	70,690	84,862
Materials and supplies (at average cost)	110,037	92,461
Fuel stock (at average cost)	10,718	14,762
Prepayments	18,881	24,396
Current regulatory assets	248,693	80,049
Other	859	40,339
Total current assets	962,648	623,837
Investments	80,045	78,791
Property, Plant and Equipment [Abstract]
Utility plant in service	6,876,028	6,828,467
Public Utilities, Property, Plant and Equipment, Accumulated Depreciation	(2,509,399)	(2,465,279)
Utility plant in service - net	4,366,629	4,363,188
Construction work in progress	896,794	785,706
Utility plant held for future use	8,778	7,130
Other property, net of accumulated depreciation	4,558	4,558
Property, plant and equipment - net	5,276,759	5,160,582
Other Assets:
Company-owned life insurance	75,949	73,944
Regulatory assets	1,336,194	1,421,912
Other	58,010	52,038
Total other assets	1,470,153	1,547,894
Total assets	7,789,605	7,411,104
Current Liabilities:
Current maturities of long-term debt	125,000	0
Accounts payable	201,280	292,616
Accounts payable to affiliates	57,093	56,338
Taxes accrued	20,657	9,101
Interest accrued	21,540	24,060
Accrued compensation	42,131	58,959
Current regulatory liabilities	6,055	63,957
Advances from customers	87,479	72,222
Other	28,969	26,199
Total current liabilities	590,204	603,452
Other Liabilities [Abstract]
Deferred Income Tax	864,473	870,692
Regulatory liabilities	799,925	796,644
Pension and other postretirement benefits	244,043	238,037
Other	120,749	76,471
Total other liabilities	2,029,190	1,981,844
Long-Term Debt	2,483,051	2,194,145
Commitments and Contingencies
Equity [Abstract]
Common stock	97,877	97,877
Premium on capital stock	712,258	712,258
Capital stock issuance costs	(2,097)	(2,097)
Retained earnings	1,891,898	1,836,547
Accumulated other comprehensive loss	(12,776)	(12,922)
Total equity	2,687,160	2,631,663
Total	$ 7,789,605	$ 7,411,104

Idaho Power Company Consolida_4

Idaho Power Company Consolidated Statements of Cash Flows - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Net income	$ 56,024	$ 46,184
Adjustments to reconcile net income to net cash (used in) provided by operating activities:
Depreciation and amortization	46,409	45,494
Deferred income taxes and investment tax credits	(7,854)	(2,517)
Changes in regulatory assets and liabilities	(56,396)	7,873
Pension and postretirement benefit plan expense	6,885	7,266
Contributions to pension and postretirement benefit plans	(1,308)	(997)
Earnings of unconsolidated equity-method investments	(2,454)	(2,308)
Distributions from equity-method investments	400	2,480
Allowance for equity funds used during construction	(9,908)	(9,123)
Other non-cash adjustments to net income, net	2,492	4,083
Change in:
Accounts receivable and unbilled revenues	(10,750)	11,748
Prepayments	4,363	3,278
Materials, supplies, and fuel stock	(13,531)	(4,762)
Accounts and wages payable	(112,468)	(44,989)
Taxes accrued/receivable	22,968	16,377
Other assets and liabilities	(15,271)	12,912
Net cash (used in) provided by operating activities	(90,399)	92,999
Investing Activities:
Additions to utility plant	(118,375)	(102,535)
Payments received from transmission project joint funding partners	3,123	1,299
Distributions from equity-method investments, return of investment	0	2,920
Purchases of equity securities	(755)	(20,988)
Purchases of held-to-maturity securities	(301)	(29,692)
Proceeds from the sale of equity securities	2,164	51,288
Other	4,853	2,049
Net cash used in investing activities	(109,156)	(98,287)
Financing Activities:
Issuance of long-term debt	522,000	50,000
Discount on issuance of long-term debt	(3,772)	0
Retirement of long-term debt	100,000	0
Dividends on common stock	(40,502)	(38,371)
Other	5,330	(76)
Net cash provided by financing activities	379,801	8,595
Net increase in cash and cash equivalents	180,246	3,307
Cash and cash equivalents at beginning of the period	177,577	215,243
Cash and cash equivalents at end of the period	357,823	218,550
Supplemental Disclosure of Cash Flow Information:
Interest (net of amount capitalized)	27,276	25,306
Non-cash investing activities:
Additions to property, plant and equipment in accounts payable	85,858	52,137
Idaho Power Company [Member]
Net income	55,710	46,214
Adjustments to reconcile net income to net cash (used in) provided by operating activities:
Depreciation and amortization	46,262	45,344
Deferred income taxes and investment tax credits	(9,395)	(3,791)
Changes in regulatory assets and liabilities	(56,396)	7,873
Pension and postretirement benefit plan expense	6,885	7,266
Contributions to pension and postretirement benefit plans	(1,308)	(997)
Earnings of unconsolidated equity-method investments	(2,472)	(2,480)
Distributions from equity-method investments	400	2,480
Allowance for equity funds used during construction	(9,908)	(9,123)
Other non-cash adjustments to net income, net	(644)	908
Change in:
Accounts receivable and unbilled revenues	(10,196)	11,855
Prepayments	4,383	3,300
Materials, supplies, and fuel stock	(13,531)	(4,762)
Accounts and wages payable	(112,502)	(44,982)
Taxes accrued/receivable	24,664	18,322
Other assets and liabilities	(15,124)	12,932
Net cash (used in) provided by operating activities	(93,172)	90,359
Investing Activities:
Additions to utility plant	(118,375)	(102,394)
Payments received from transmission project joint funding partners	3,123	1,299
Distributions from equity-method investments, return of investment	0	2,920
Purchases of equity securities	(755)	(20,413)
Purchases of held-to-maturity securities	(301)	(29,692)
Proceeds from the sale of equity securities	2,164	51,288
Other	5,280	2,049
Net cash used in investing activities	(108,864)	(94,943)
Financing Activities:
Issuance of long-term debt	522,000	50,000
Discount on issuance of long-term debt	(3,772)	0
Retirement of long-term debt	100,000	0
Dividends on common stock	(552)	(38,198)
Other	5,365	(74)
Net cash provided by financing activities	423,041	11,728
Net increase in cash and cash equivalents	221,005	7,144
Cash and cash equivalents at beginning of the period	108,933	60,075
Cash and cash equivalents at end of the period	329,938	67,219
Supplemental Disclosure of Cash Flow Information:
Interest (net of amount capitalized)	27,195	25,301
Non-cash investing activities:
Additions to property, plant and equipment in accounts payable	$ 85,858	$ 52,137

Consolidated Statements of Co_2

Consolidated Statements of Comprehensive Income (Parenthetical) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Statement of Comprehensive Income [Abstract]
Unfunded pension liability adjustment, tax	$ 51	$ 290

Consolidated Balance Sheets (Pa

Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Thousands	Mar. 31, 2023	Dec. 31, 2022
Statement of Financial Position [Abstract]
Accounts Receivable, Allowance for Credit Loss, Current	$ 5,062	$ 5,034
Allowance for Doubtful Other Receivables, Current	$ 525	$ 512
Common Stock, Shares Authorized	120,000,000	120,000,000
Common Stock, Shares, Issued	50,608,000	50,562,000

Consolidated Statements of Eq_2

Consolidated Statements of Equity (Parenthetical) - $ / shares	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Statement of Stockholders' Equity [Abstract]
Common stock dividends, per share (in dollar per share)	$ 0.79	$ 0.75

Idaho Power Company Statement o

Idaho Power Company Statement of Comprehensive Income (Parenthetical) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Unfunded pension liability adjustment, tax	$ (51)	$ (290)
Idaho Power Company [Member]
Unfunded pension liability adjustment, tax	$ (51)	$ (290)

Idaho Power company Consolida_5

Idaho Power company Consolidated Balance Sheet (Parenthetical) - USD ($) $ in Thousands	Mar. 31, 2023	Dec. 31, 2022
Accounts Receivable, Allowance for Credit Loss, Current	$ 5,062	$ 5,034
Allowance for Doubtful Other Receivables, Current	$ 525	$ 512
Common Stock, Shares Authorized	120,000,000	120,000,000
Common Stock, Shares, Issued	50,608,000	50,562,000
Idaho Power Company [Member]
Accounts Receivable, Allowance for Credit Loss, Current	$ 5,062	$ 5,034
Allowance for Doubtful Other Receivables, Current	$ 525	$ 512
Common Stock, Par or Stated Value Per Share	$ 2.50	$ 2.50
Common Stock, Shares Authorized	50,000,000	50,000,000
Common Stock, Shares, Issued	39,151,000	39,151,000

SUMMARY OF SIGNIFICANT ACCOUNTI

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES:	3 Months Ended
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES:	Mar. 31, 2023
Accounting Policies [Abstract]
Summary of Significant Accounting Policies	SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES This Quarterly Report on Form 10-Q is a combined report of IDACORP, Inc. (IDACORP) and Idaho Power Company (Idaho Power). Therefore, these Notes to the Condensed Consolidated Financial Statements apply to both IDACORP and Idaho Power. However, Idaho Power makes no representation as to the information relating to IDACORP’s other operations. Nature of Business IDACORP is a holding company formed in 1998 whose principal operating subsidiary is Idaho Power. Idaho Power is an electric utility engaged in the generation, transmission, distribution, sale, and purchase of electric energy and capacity with a service area covering approximately 24,000 square miles in southern Idaho and eastern Oregon. Idaho Power is regulated primarily by the state utility regulatory commissions of Idaho and Oregon and the Federal Energy Regulatory Commission. Idaho Power is the parent of Idaho Energy Resources Co. (IERCo), a joint venturer in Bridger Coal Company (BCC), which mines and supplies coal to the Jim Bridger power plant (Jim Bridger plant) owned in part by Idaho Power. IDACORP’s other notable wholly-owned subsidiaries include IDACORP Financial Services, Inc. (IFS), an investor in affordable housing and other real estate tax credit investments, and Ida-West Energy Company (Ida-West), an operator of small hydropower generation projects that satisfy the requirements of the Public Utility Regulatory Policies Act of 1978. Regulation of Utility Operations As a regulated utility, many of Idaho Power's fundamental business decisions are subject to the approval of governmental agencies, including the prices that Idaho Power is authorized to charge for its electric service. These approvals are a critical factor in determining IDACORP's and Idaho Power's results of operations and financial condition. IDACORP's and Idaho Power's financial statements reflect the effects of the different ratemaking principles followed by the jurisdictions regulating Idaho Power. The application of accounting principles related to regulated operations sometimes results in Idaho Power recording expenses and revenues in a different period than when an unregulated enterprise would record such expenses and revenues. In these instances, the amounts are deferred or accrued as regulatory assets or regulatory liabilities on the balance sheet. Regulatory assets represent incurred costs that have been deferred because it is probable they will be recovered from customers through future rates. Regulatory liabilities represent obligations to make refunds to customers for previous collections, or represent amounts collected in advance of incurring an expense. The effects of applying these regulatory accounting principles to Idaho Power's operations are discussed in more detail in Note 3 - "Regulatory Matters." Financial Statements In the opinion of management of IDACORP and Idaho Power, the accompanying unaudited condensed consolidated financial statements contain all adjustments necessary to present fairly each company's condensed consolidated balance sheets as of March 31, 2023, condensed consolidated statements of income for the three months ended March 31, 2023 and 2022, and condensed consolidated cash flows for the three months ended March 31, 2023 and 2022. These adjustments are of a normal and recurring nature. These financial statements do not contain the complete detail or note disclosures concerning accounting policies and other matters that would be included in full-year financial statements and should be read in conjunction with the audited consolidated financial statements included in IDACORP’s and Idaho Power’s Annual Report on Form 10-K for the year ended December 31, 2022 (2022 Annual Report). The statements of income for the interim period are not necessarily indicative of the results to be expected for the full year. A change in management's estimates or assumptions could have a material impact on IDACORP's or Idaho Power's respective balance sheets and statements of income during the period in which such change occurred. Management Estimates Management makes estimates and assumptions when preparing financial statements in conformity with accounting principles generally accepted in the United States of America (GAAP). These estimates and assumptions include, among others, those related to rate regulation, retirement benefits, contingencies, asset impairment, income taxes, unbilled revenues, and bad debt. These estimates and assumptions affect the reported amounts of assets and liabilities and 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. These estimates involve judgments with respect to, among other things, future economic factors that are difficult to predict and are beyond management's control. Accordingly, actual results could differ from those estimates. New and Recently Adopted Accounting Pronouncements There have been no recently issued accounting pronouncements that have had or are expected to have a material impact on IDACORP's or Idaho Power's condensed consolidated financial statements.

INCOME TAXES_

INCOME TAXES:	3 Months Ended
INCOME TAXES:	Mar. 31, 2023
Income Tax Disclosure [Abstract]
Income Taxes	INCOME TAXES In accordance with interim reporting requirements, IDACORP and Idaho Power use an estimated annual effective tax rate for computing their provisions for income taxes. An estimate of annual income tax expense (or benefit) is made each interim period using estimates for annual pre-tax income, income tax adjustments, and tax credits. The estimated annual effective tax rates do not include discrete events such as tax law changes, examination settlements, accounting method changes, or adjustments to tax expense or benefits attributable to prior years. Discrete events are recorded in the interim period in which they occur or become known. The estimated annual effective tax rate is applied to year-to-date pre-tax income to determine income tax expense (or benefit) for the interim period consistent with the annual estimate. In subsequent interim periods, income tax expense (or benefit) for the period is computed as the difference between the year-to-date amount reported for the previous interim period and the current period's year-to-date amount. Income Tax Expense The following table provides a summary of income tax expense for the three months ended March 31, 2023 and 2022 (in thousands): IDACORP Idaho Power 2023 2022 2023 2022 Income tax at statutory rates (federal and state) $ 16,266 $ 13,458 $ 16,299 $ 13,619 Additional accumulated deferred investment tax credits (ADITC) (3,750) — (3,750) — Excess deferred income tax reversal (2,671) (2,503) (2,671) (2,503) Other (1) (2,750) (4,929) (2,268) (4,419) Income tax expense $ 7,095 $ 6,026 $ 7,610 $ 6,697 Effective tax rate 11.2 % 11.5 % 12.0 % 12.7 % (1) "Other" is primarily comprised of the net tax effect of Idaho Power's regulatory flow-through tax adjustments. The increase in income tax expense for the three months ended March 31, 2023, compared with the same period in 2022, was primarily due to higher pre-tax earnings, net of ADITC amortization from the regulatory mechanism described in Note 3 - "Regulatory Matters." On a net basis, Idaho Power’s estimate of its annual 2023 regulatory flow-through tax adjustments is lower than 2022.

REGULATORY MATTERS_

REGULATORY MATTERS:	3 Months Ended
REGULATORY MATTERS:	Mar. 31, 2023
Public Utilities, Rate Matters [Abstract]
Regulatory Matters	REGULATORY MATTERS Included below is a summary of Idaho Power's most recent general rate cases and base rate changes, as well as other recent or pending notable regulatory matters and proceedings. Idaho and Oregon General Rate Cases Idaho Power's current base rates result from the Idaho Public Utilities Commission (IPUC) and Public Utility Commission of Oregon (OPUC) orders described in Note 3 - "Regulatory Matters" to the consolidated financial statements included in the 2022 Annual Report. On March 31, 2023, Idaho Power provided notice to the IPUC of its intent to file a general rate case in Idaho on or after June 1, 2023. Idaho Settlement Stipulations A May 2018 Idaho settlement stipulation related to tax reform (May 2018 Idaho Tax Reform Settlement Stipulation) is described in Note 3 - "Regulatory Matters" to the consolidated financial statements included in the 2022 Annual Report and includes provisions for the accelerated amortization of ADITC to help achieve a minimum 9.4 percent Idaho-jurisdiction return on year-end equity (Idaho ROE). In addition, under the May 2018 Idaho Tax Reform Settlement Stipulation, the Idaho ROE at which Idaho Power would begin amortizing additional ADITC would revert back to 95 percent of the authorized return on equity in the next general rate case. The settlement stipulation also provides for the potential sharing between Idaho Power and Idaho customers of Idaho-jurisdictional earnings in excess of 10.0 percent of Idaho ROE, which would adjust to the authorized return on equity in the next general rate case. Based on its estimate of full-year 2023 Idaho ROE, in the first quarter of 2023, Idaho Power recorded $3.75 million in additional ADITC amortization under the May 2018 Idaho Tax Reform Settlement Stipulation. Accordingly, at March 31, 2023, $41.25 million of additional ADITC remains available for future use. Idaho Power recorded no additional ADITC amortization or provision against revenues for sharing of earnings with customers during the first quarter of 2022, based on its then-current estimate of full-year 2022 Idaho ROE. Power Cost Adjustment Mechanisms In both its Idaho and Oregon jurisdictions, Idaho Power's power cost adjustment mechanisms address the volatility of power supply costs and provide for annual adjustments to the rates charged to its retail customers. The power cost adjustment mechanisms compare Idaho Power's actual net power supply costs (primarily fuel and purchased power less wholesale energy sales) against net power supply costs being recovered in Idaho Power's retail rates. Under the power cost adjustment mechanisms, certain differences between actual net power supply costs incurred by Idaho Power and costs being recovered in retail rates are recorded as a deferred charge or credit on the balance sheet for future recovery or refund. The power supply costs deferred primarily result from changes in contracted power purchase prices and volumes, changes in wholesale market prices and transaction volumes, fuel prices, and the levels of Idaho Power's own generation. In April 2023 , Idaho Power filed an application with the IPUC requesting a $200.2 million net increase in Idaho-jurisdiction power cost adjustment (PCA) revenues, effective for the 2023-2024 PCA collection period from June 1, 2023, to May 31, 2024. The net increase in PCA revenues reflects higher market energy and natural gas prices, combined with lower-than-expected hydropower generation and limited coal supply in the prior April 2022-March 2023 PCA period. The net increase also reflects an expectation of continued elevated market energy and natural gas prices in the April 2023-March 2024 forecast period under the PCA. As of the d ate of this report, the IPUC has not yet issued an order on the company's requested rate increase. In March 2023, Idaho Power filed its annual power cost update (APCU) with the OPUC, requesting a $9.0 million increase in Oregon-jurisdiction rates effective June 1, 2023. As of the date of this report, the OPUC has not issued an order on the Company’s requested rate increase. Idaho Fixed Cost Adjustment Mechanism The Idaho jurisdiction fixed cost adjustment (FCA) mechanism, applicable to Idaho residential and small commercial customers, is designed to remove a portion of Idaho Power’s financial disincentive to invest in energy efficiency programs by separating (or decoupling) the recovery of fixed costs from the variable kilowatt-hour charge and linking it instead to a set amount per customer. Under Idaho Power's current rate design, Idaho Power recovers a portion of fixed costs through the variable kilowatt-hour charge, which may result in over-collection or under-collection of fixed costs. To return over-collection to customers or to collect under-collection from customers, the FCA mechanism allows Idaho Power to accrue, or defer, the difference between the authorized fixed-cost recovery amount per customer and the actual fixed costs per customer recovered by Idaho Power during the year. The IPUC has discretion to cap the annual increase in the FCA recovery at 3 percent of base revenue, with any excess deferred for collection in a subsequent year. In March 2023, Idaho Power filed its annual FCA update with the IPUC, requesting a decrease of $10.1 million in recovery from the FCA from $35.2 million to $25.1 million for the 2022 FCA deferral, with new rates effective for the period from June 1, 2023 to May 31, 2024. As of the d ate of this report, the IPUC has not yet issued an order on the company's requested rate decrease. Jim Bridger Power Plant Rate Base Adjustment and Recovery In June 2022, the IPUC issued an order approving, with modifications, Idaho Power’s amended application requesting authorization to (1) accelerate depreciation for the Jim Bridger plant to allow the coal-related plant assets to be fully depreciated and recovered by December 31, 2030, (2) establish a balancing account to track the incremental costs, benefits, and required regulatory accounting associated with ceasing participation in coal-fired operations at the Jim Bridger plant, and (3) increase customer rates related to the associated incremental annual levelized revenue requirement (Bridger Order). The Bridger Order allows for regulatory accounting entries and establishes balancing accounts (recorded as regulatory assets or liabilities on Idaho Power’s and IDACORP’s consolidated balance sheets) to track differences between amounts recovered in rates and actual incremental costs and benefits associated with Idaho Power’s cessation of coal-fired operations at the Jim Bridger plant. The incremental costs and benefits include the revenue requirement associated with the incremental Jim Bridger plant coal-related investments made from 2012 through the end of 2020, forecasted coal-related investments, and near-term decommissioning costs, offset by other operations and maintenance (O&M) cost savings. The Bridger Order deemed all coal-related investments at the Jim Bridger plant from 2012 through 2020 to be prudent for recovery. In the Bridger Order, the IPUC reduced Idaho Power's requested rate increase from 2.1 percent in its amended filing to 1.5 percent, a reduction from a requested $27.1 million to $18.8 million annually. The Bridger Order provides that any uncollected amount resulting from the reduction in the rate increase will be recorded in the balancing account for future recovery with no carrying charge. Idaho Power anticipates making future filings with the IPUC that may result in periodic adjustments to rates to true up variances between revenue collections and actual revenue requirement amounts. The Bridger Order allows Idaho Power to earn a return on and recover through 2030 the net book value of coal-related assets at the Jim Bridger plant as of December 31, 2020, as well as forecasted coal-related investments. Wildfire Mitigation Cost Recovery In June 2021, the IPUC authorized Idaho Power to defer for future amortization incremental O&M and depreciation expense for certain capital investments necessary to implement Idaho Power's Wildfire Mitigation Plan (WMP). The IPUC also authorized Idaho Power to record these deferred expenses as a regulatory asset until Idaho Power can request amortization of the deferred costs in a future IPUC proceeding, at which time the IPUC will have the opportunity to review actual costs and determine the amount of prudently incurred costs that Idaho Power can recover through retail rates. In its 2021 application with the IPUC, Idaho Power projected spending approximately $47 million in incremental wildfire mitigation-related O&M and roughly $35 million in wildfire mitigation system-hardening incremental capital expenditures over a five-year period. The IPUC authorized a deferral period of five years, or until rates go into effect from Idaho Power's next general rate case, whichever is first. As of March 31, 2023, Idaho Power's deferral of Idaho-jurisdiction costs related to the WMP was $34.8 million. During the 2021 and 2022 wildfire seasons, Idaho Power identified needs for expanded mitigation measures by gaining additional insights and knowledge on wildfires and wildfire mitigation activities. In October 2022, Idaho Power filed an updated WMP with the IPUC along with an application requesting authorization to defer an estimated $16 million of newly identified incremental costs expected to be incurred between 2022 and 2025 associated with expanded wildfire mitigation efforts. In March 2023, the IPUC approved Idaho Power's updated WMP and request to defer the additional incremental costs.

REVENUES_

REVENUES:	3 Months Ended
REVENUES:	Mar. 31, 2023
Revenues [Abstract]
REVENUES:	REVENUES The following table provides a summary of electric utility operating revenues for IDACORP and Idaho Power for the three months ended March 31, 2023 and 2022 (in thousands): Three months ended 2023 2022 Revenue from contracts with customers $ 385,666 $ 318,182 Alternative revenue programs and other revenues 43,672 25,739 Total electric utility operating revenues $ 429,338 $ 343,921 Revenues from Contracts with Customers The following table presents revenues from contracts with customers disaggregated by revenue source for the three months ended March 31, 2023 and 2022 (in thousands): Three months ended 2023 2022 Retail revenues: Residential (includes $8,909, and $10,093, respectively, related to the FCA) (1) $ 188,536 $ 169,295 Commercial (includes $276, and $283, respectively, related to the FCA) (1) 87,830 78,566 Industrial 55,544 49,060 Irrigation 933 1,041 Deferred revenue related to HCC relicensing AFUDC (2) (2,119) (2,119) Total retail revenues 330,724 295,843 Less: FCA mechanism revenues (1) (9,185) (10,376) Wholesale energy sales 30,195 3,035 Transmission wheeling-related revenues 21,585 16,466 Energy efficiency program revenues 5,215 6,589 Other revenues from contracts with customers 7,132 6,625 Total revenues from contracts with customers $ 385,666 $ 318,182 (1) The FCA mechanism is an alternative revenue program in the Idaho jurisdiction and does not represent revenue from contracts with customers. (2) The IPUC allows Idaho Power to recover a portion of the allowance for funds used during construction (AFUDC) on construction work in progress related to the Hells Canyon Complex (HCC) relicensing process, even though the relicensing process is not yet complete and the costs have not been moved to electric plant in service. Idaho Power is collecting $8.8 million annually in the Idaho jurisdiction but is deferring revenue recognition of the amounts collected until the license is issued and the accumulated license costs approved for recovery are placed in service. Alternative Revenue Programs and Other Revenues While revenues from contracts with customers make up most of Idaho Power’s revenues, the IPUC has authorized the use of an additional regulatory mechanism, the Idaho FCA mechanism, which may increase or decrease tariff-based customer rates. The Idaho FCA mechanism is described in Note 3 - "Regulatory Matters." The FCA mechanism revenues include only the initial recognition of FCA revenues when they meet the regulator-specified conditions for recognition. Revenue from contracts with customers excludes the portion of the tariff price representing FCA revenues that Idaho Power initially recorded in prior periods when revenues met regulator-specified conditions. When Idaho Power includes those amounts in the price of utility service and billed to customers, Idaho Power records such amounts as recovery of the associated regulatory asset or liability and not as revenues. Derivative revenues include gains from settled electricity swaps and sales of electricity under forward sales contracts that are bundled with renewable energy credits. Related to these forward sales, Idaho Power simultaneously enters into forward purchases of electricity for the same quantity at the same location, which are recorded in purchased power on the condensed consolidated statements of income. For more information on settled electricity swaps, see Note 11 - "Derivative Financial Instruments." The table below presents the FCA mechanism revenues and other revenues for the three months ended March 31, 2023 and 2022 (in thousands): Three months ended 2023 2022 FCA mechanism revenues $ 9,185 10,376 Derivative revenues 34,487 15,363 Total alternative revenue programs and other revenues $ 43,672 $ 25,739 Receivables and Allowance for Uncollectible Accounts The following table provides a rollforward of the allowance for uncollectible accounts related to customer receivables for the three months ended March 31, 2023 and 2022 (in thousands): Three months ended 2023 2022 Balance at beginning of period $ 5,034 $ 4,499 Additions to the allowance 577 488 Write-offs, net of recoveries (549) (137) Balance at end of period $ 5,062 $ 4,850 Allowance for uncollectible accounts as a percentage of customer receivables 4.8 % 5.6 %

LONG-TERM DEBT

LONG-TERM DEBT	3 Months Ended
LONG-TERM DEBT	Mar. 31, 2023
Debt Disclosure [Abstract]
LONG-TERM DEBT	LONG-TERM DEBT Long-Term Debt Issuances and Redemptions On December 22, 2022, Idaho Power entered into a Bond Purchase Agreement (Bond Purchase Agreement) with certain institutional purchasers relating to the sale by Idaho Power of $170 million of first mortgage bonds, secured medium-term notes, Series N (Series N Notes), as described in Note 5 - "Long-Term Debt" to the consolidated financial statements included in the 2022 Annual Report. On March 8, 2023, Idaho Power issued $60 million in aggregate principal amount of 5.06% first mortgage bonds, secured medium-term notes, Series N, maturing on March 8, 2043; and $62 million in aggregate principal amount of 5.20% first mortgage bonds, secured medium-term notes, Series N, maturing on March 8, 2053. Idaho Power also issues secured medium term notes from time to time under a shelf registration statement with the SEC, as described in Note 5 - "Long-Term Debt" to the consolidated financial statements included in the 2022 Annual Report. On March 14, 2023, under the shelf registration statement with the SEC, Idaho Power issued $400 million in aggregate principal amount of 5.50% first mortgage bonds, secured medium-term notes, Series M, maturing on March 15, 2053. On April 1, 2023, Idaho Power repaid $75 million in aggregate principal amount of maturing 2.50% first mortgage bonds due 2023, Series I, and as a result, the $75 million of 2.50% first mortgage bonds are classified as current maturities of long-term debt in the condensed consolidated balance sheets at March 31, 2023. On March 4, 2022, Idaho Power entered into a floating rate term loan credit agreement (Term Loan Facility) for the issuance of up to an aggregate principal amount of $150 million due 2024, bearing interest at floating rates based on the Secured Overnight Financing Rate (SOFR), as described in Note 5 - "Long-Term Debt" to the consolidated financial statements included in the 2022 Annual Report. On March 31, 2023, Idaho Power repaid $100 million of the Term Loan Facility. As of March 31, 2023, $50 million in principal amount of the Term Loan Facility remained outstanding.

COMMON STOCK_

COMMON STOCK:	3 Months Ended
COMMON STOCK:	Mar. 31, 2023
Common Stock, Number of Shares, Par Value and Other Disclosure [Abstract]
Common Stock	COMMON STOCK IDACORP Common Stock During the three months ended March 31, 2023, IDACORP granted 75,295 restricted stock unit awards to employees and issued 45,719 shares of common stock using original issuances of shares pursuant to the IDACORP, Inc. 2000 Long-Term Incentive and Compensation Plan, including 6,664 shares of common stock issued to members of the board of directors. As directed by IDACORP, plan administrators of the IDACORP, Inc. Dividend Reinvestment and Stock Purchase Plan and Idaho Power Company Employee Savings Plan used market purchases of IDACORP common stock to acquire shares of IDACORP common stock for the plans. Restrictions on Dividends Idaho Power’s ability to pay dividends on its common stock held by IDACORP and IDACORP’s ability to pay dividends on its common stock are limited to the extent payment of such dividends would violate the covenants in their respective Credit Facilities or Idaho Power’s Revised Code of Conduct. A covenant under IDACORP’s credit facility and Idaho Power’s credit facility requires IDACORP and Idaho Power to maintain leverage ratios of consolidated indebtedness to consolidated total capitalization, as defined therein, of no more than 65 percent at the end of each fiscal quarter. At March 31, 2023, the leverage ratios for IDACORP and Idaho Power were 48 percent and 49 percent, respectively. Based on these restrictions, IDACORP’s and Idaho Power’s dividends were limited to $1.4 billion and $1.3 billion, respectively, at March 31, 2023. There are additional facility covenants, subject to exceptions, that prohibit or restrict the sale or disposition of property without consent and any agreements restricting dividend payments to IDACORP and Idaho Power from any material subsidiary. At March 31, 2023, IDACORP and Idaho Power were in compliance with those covenants. Idaho Power’s Revised Policy and Code of Conduct relating to transactions between and among Idaho Power, IDACORP, and other affiliates, which was approved by the IPUC in April 2008, provides that Idaho Power will not pay any dividends to IDACORP that will reduce Idaho Power’s common equity capital below 35 percent of its total adjusted capital without IPUC approval. At March 31, 2023, Idaho Power's common equity capital was 51 percent of its total adjusted capital. Further, Idaho Power must obtain approval from the OPUC before it can directly or indirectly loan funds or issue notes or give credit on its books to IDACORP. Idaho Power’s articles of incorporation contain restrictions on the payment of dividends on its common stock if preferred stock dividends are in arrears. As of the date of this report, Idaho Power has no preferred stock outstanding. In addition to contractual restrictions on the amount and payment of dividends, the Federal Power Act prohibits the payment of dividends from "capital accounts." The term "capital account" is undefined in the Federal Power Act or its regulations, but Idaho Power does not believe the restriction would limit Idaho Power's ability to pay dividends out of current year earnings or retained earnings.

EARNINGS PER SHARE_

EARNINGS PER SHARE:	3 Months Ended
EARNINGS PER SHARE:	Mar. 31, 2023
Earnings Per Share [Abstract]
Earnings Per Share	EARNINGS PER SHARE The table below presents the computation of IDACORP’s basic and diluted earnings per share for the three months ended March 31, 2023 and 2022 (in thousands, except for per share amounts). Three months ended 2023 2022 Numerator: Net income attributable to IDACORP, Inc. $ 56,098 $ 46,260 Denominator: Weighted-average common shares outstanding - basic 50,688 50,632 Effect of dilutive securities 35 28 Weighted-average common shares outstanding - diluted 50,723 50,660 Basic earnings per share $ 1.11 $ 0.91 Diluted earnings per share $ 1.11 $ 0.91

COMMITMENTS_

COMMITMENTS:	3 Months Ended
COMMITMENTS:	Mar. 31, 2023
Disclosure Text Block Supplement [Abstract]
COMMITMENTS	COMMITMENTS Purchase Obligations During the three months ended March 31, 2023, IDACORP's and Idaho Power's contractual obligations, outside the ordinary course of business, did not change materially from the amounts disclosed in the notes to the consolidated financial statements in the 2022 Annual Report, except as disclosed in this Note 8. In April 2023, Idaho Power entered into an agreement to purchase the storage capacity of a 150 megawatt (MW) battery storage facility, subject to regulatory approval, which increased Idaho Power's contractual obligations by approximately $430.9 million over the 20-year term of the contract. The facility is scheduled to be online in June 2025. Acquisition of Additional Interest in Boardman-To-Hemingway Transmission Project In March 2023, Idaho Power executed a purchase, sale, and security agreement with the Bonneville Power Administration (BPA) to transfer BPA's 24 percent interest in the Boardman-to-Hemingway transmission line project to Idaho Power, bringing Idaho Power's interest in the project to 45 percent. Pursuant to the agreement, Idaho Power has a commitment to provide long-term transmission service to BPA. The agreement also required BPA to make a $10 million security payment to Idaho Power. On Idaho Power's condensed consolidated balance sheet as of March 31, 2023, the agreement increased construction work in progress by $31.4 million for the acquired permitting interest, cash and cash equivalents by $10.0 million for the additional security payment, and other non-current liabilities by $41.4 million for Idaho Power's obligation to pay for the permitting interest and to return the security deposit to BPA. Payments to BPA for the permitting interest are expected to be made over a 15-year period beginning 10 years after energization of the transmission line project, while the security deposit is due to be returned to BPA upon energization. Guarantees Idaho Power guarantees its portion of reclamation activities and obligations at BCC, of which IERCo owns a one-third interest. This guarantee, which is renewed annually with the Wyoming Department of Environmental Quality, was $47.3 million at March 31, 2023, representing IERCo's one-third share of BCC's total reclamation obligation of $141.9 million. BCC has a reclamation trust fund set aside specifically for the purpose of paying these reclamation costs. At March 31, 2023, the value of BCC's reclamation trust fund was $212.4 million. During the three months ended March 31, 2023, the reclamation trust fund made no distributions for reclamation activity costs associated with the BCC surface mine. BCC periodically assesses the adequacy of the reclamation trust fund and its estimate of future reclamation costs. To ensure that the reclamation trust fund maintains adequate reserves, BCC has the ability to, and does, add a per-ton surcharge to coal sales, all of which are made to the Jim Bridger plant. Because of the existence of the fund and the ability to apply a per-ton surcharge, the estimated fair value of this guarantee is minimal. IDACORP and Idaho Power enter into financial agreements and power purchase and sale agreements that include indemnification provisions relating to various forms of claims or liabilities that may arise from the transactions contemplated by these agreements. Generally, a maximum obligation is not explicitly stated in the indemnification provisions and, therefore, the overall maximum amount of the obligation under such indemnification provisions cannot be reasonably estimated. IDACORP and Idaho Power periodically evaluate the likelihood of incurring costs under such indemnities based on their historical experience and the evaluation of the specific indemnities. As of March 31, 2023, management believe the likelihood is remote that IDACORP or Idaho Power would be required to perform under such indemnification provisions or otherwise incur any significant losses with respect to such indemnification obligations. Neither IDACORP nor Idaho Power has recorded any liability on their respective condensed consolidated balance sheets with respect to these indemnification obligations.

CONTINGENCIES_

CONTINGENCIES:	3 Months Ended
CONTINGENCIES:	Mar. 31, 2023
Loss Contingency [Abstract]
Contingencies	CONTINGENCIES IDACORP and Idaho Power have in the past and expect in the future to become involved in various claims, controversies, disputes, and other contingent matters, some of which involve litigation and regulatory or other contested proceedings. The ultimate resolution and outcome of litigation and regulatory proceedings is inherently difficult to determine, particularly where (a) the remedies or penalties sought are indeterminate, (b) the proceedings are in the early stages or the substantive issues have not been well developed, or (c) the matters involve complex or novel legal theories or a large number of parties. In accordance with applicable accounting guidance, IDACORP and Idaho Power, as applicable, establish an accrual for legal proceedings when those matters proceed to a stage where they present loss contingencies that are both probable and reasonably estimable. If the loss contingency at issue is not both probable and reasonably estimable, IDACORP and Idaho Power do not establish an accrual and the matter will continue to be monitored for any developments that would make the loss contingency both probable and reasonably estimable. As of the date of this report, IDACORP's and Idaho Power's accruals for loss contingencies are not material to their financial statements as a whole; however, future accruals could be material in a given period. IDACORP's and Idaho Power's determination is based on currently available information, and estimates presented in financial statements and other financial disclosures involve significant judgment and may be subject to significant uncertainty. For matters that affect Idaho Power's operations, Idaho Power intends to seek, to the extent permissible and appropriate, recovery through the ratemaking process of costs incurred, although there is no assurance that such recovery would be granted. IDACORP and Idaho Power are parties to legal claims and legal, tax, and regulatory actions and proceedings in the ordinary course of business and, as noted above, record an accrual for associated loss contingencies when they are probable and reasonably estimable. In connection with its utility operations, Idaho Power is subject to claims by individuals, entities, and governmental agencies for damages for alleged personal injury, property damage, and economic losses, relating to the company’s provision of electric service and the operation of its generation, transmission, and distribution facilities. Some of those claims relate to electrical contacts, service quality, property damage, and wildfires. In recent years, utilities in the western United States have been subject to significant liability for personal injury, loss of life, property damage, trespass, and economic losses, and in some cases, punitive damages and criminal charges, associated with wildfires that originated from utility property, most commonly transmission and distribution lines. Idaho Power has also regularly received claims by governmental agencies and private landowners for damages for fires allegedly originating from Idaho Power’s transmission and distribution system. As of the date of this report, the companies believe that resolution of existing claims will not have a material adverse effect on their respective condensed consolidated financial statements.

BENEFIT PLANS_

BENEFIT PLANS:	3 Months Ended
BENEFIT PLANS:	Mar. 31, 2023
Retirement Benefits, Description [Abstract]
Benefit Plans	BENEFIT PLANS Idaho Power has a noncontributory defined benefit pension plan (pension plan) and two nonqualified defined benefit plans for certain senior management employees called the Security Plan for Senior Management Employees I and Security Plan for Senior Management Employees II (together, SMSP). Idaho Power also has a nonqualified defined benefit pension plan for directors that was frozen in 2002. Remaining vested benefits from that plan are included with the SMSP in the disclosures below. The benefits under the pension plan are based on years of service and the employee’s final average earnings. Idaho Power also maintains a defined benefit postretirement benefit plan (consisting of health care and death benefits) that covers all employees who were enrolled in the active-employee group plan at the time of retirement as well as their spouses and qualifying dependents. The table below shows the components of net periodic benefit costs for the pension, SMSP, and postretirement benefits plans for the three months ended March 31, 2023 and 2022 (in thousands). Pension Plan SMSP Postretirement Total 2023 2022 2023 2022 2023 2022 2023 2022 Service cost $ 8,078 $ 13,164 $ 153 $ 296 $ 178 $ 270 $ 8,409 $ 13,730 Interest cost 12,654 10,084 1,331 974 773 526 14,758 11,584 Expected return on plan assets (15,434) (18,037) — — (419) (591) (15,853) (18,628) Amortization of prior service cost 2 2 55 70 416 (1) 473 71 Amortization of net loss — 3,548 142 1,057 (272) (11) (130) 4,594 Net periodic benefit cost 5,300 8,761 1,681 2,397 676 193 7,657 11,351 Regulatory deferral of net periodic benefit cost (1) (5,060) (8,373) — — — — (5,060) (8,373) Previously deferred pension costs recognized (1) 4,288 4,288 — — — — 4,288 4,288 Net periodic benefit cost recognized for financial reporting (1)(2) $ 4,528 $ 4,676 $ 1,681 $ 2,397 $ 676 $ 193 $ 6,885 $ 7,266 (1) Net periodic benefit costs for the pension plan are recognized for financial reporting based upon the authorization of each regulatory jurisdiction in which Idaho Power operates. Under IPUC order, the Idaho portion of net periodic benefit cost is recorded as a regulatory asset and is recognized in the income statement as those costs are recovered through rates. (2) Of total net periodic benefit cost recognized for financial reporting, $5.3 million and $4.9 million, respectively, were recognized in "Other operations and maintenance" and $1.6 million and $2.4 million, respectively, were recognized in "Other income, net" on the condensed consolidated statements of income of the companies for the three months ended March 31, 2023 and 2022. Idaho Power has no minimum contribution requirement to its defined benefit pension plan in 2023, and during the three months ended March 31, 2023, Idaho Power made no contributions. In April 2023, Idaho Power made a $10 million contribution. Idaho Power is considering contributing up to an additional $30 million to its defined benefit pension plan during 2023 in a continued effort to balance the regulatory collection of these expenditures with the amount and timing of contributions, as well as to mitigate the cost of being in an underfunded position. The primary impact of pension contributions is on the timing of cash flows, as the timing of cost recovery lags behind contributions. Idaho Power also has an Employee Savings Plan that complies with Section 401(k) of the Internal Revenue Code and covers substantially all employees. Idaho Power matches specified percentages of employee contributions to the Employee Savings Plan.

DERIVATIVE FINANCIAL INSTRUMENT

DERIVATIVE FINANCIAL INSTRUMENTS:	3 Months Ended
DERIVATIVE FINANCIAL INSTRUMENTS:	Mar. 31, 2023
General Discussion of Derivative Instruments and Hedging Activities [Abstract]
DERIVATIVE FINANCIAL INSTRUMENTS	DERIVATIVE FINANCIAL INSTRUMENTS Commodity Price Risk Idaho Power is exposed to market risk relating to electricity, natural gas, and other fuel commodity prices, all of which are heavily influenced by supply and demand. Market risk may be influenced by market participants’ nonperformance of their contractual obligations and commitments, which affects the supply of or demand for the commodity. Idaho Power uses derivative instruments, such as physical and financial forward contracts, for both electricity and fuel to manage the risks relating to these commodity price exposures. The primary objectives of Idaho Power’s energy purchase and sale activity are to meet the demand of retail electric customers, maintain appropriate physical reserves to ensure reliability, and make economic use of temporary surpluses that may develop. All of Idaho Power's derivative instruments have been entered into for the purpose of securing energy resources for future periods or economically hedging forecasted purchases and sales, though none of these instruments have been designated as cash flow hedges. Idaho Power offsets fair value amounts recognized on its balance sheet and applies collateral related to derivative instruments executed with the same counterparty under the same master netting agreement. Idaho Power does not offset a counterparty's current derivative contracts with the counterparty's long-term derivative contracts, although Idaho Power's master netting arrangements would allow current and long-term positions to be offset in the event of default. Also, in the event of default, Idaho Power's master netting arrangements would allow for the offsetting of all transactions executed under the master netting arrangement. These types of transactions may include non-derivative instruments, derivatives qualifying for scope exceptions, receivables and payables arising from settled positions, and other forms of non-cash collateral (such as letters of credit). These types of transactions are excluded from the offsetting presented in the derivative fair value and offsetting table that follows. The table below presents the gains and losses on derivatives not designated as hedging instruments for the three months ended March 31, 2023 and 2022 (in thousands of dollars): Gain/(Loss) on Derivatives Recognized in Income (1) Location of Realized Gain/(Loss) on Derivatives Recognized in Income Three months ended 2023 2022 Financial swaps Operating revenues $ (1,079) $ 582 Financial swaps Purchased power 1,626 116 Financial swaps Fuel expense 23,537 1,460 Forward contracts Operating revenues 636 179 Forward contracts Purchased power (600) (179) Forward contracts Fuel expense (420) (54) (1) Excludes unrealized gains or losses on derivatives, which are recorded on the balance sheet as regulatory assets or regulatory liabilities. Settlement gains and losses on electricity swap contracts are recorded on the income statement in operating revenues or purchased power depending on the forecasted position being economically hedged by the derivative contract. Settlement gains and losses on contracts for natural gas are reflected in fuel expense. Settlement gains and losses on diesel derivatives are recorded in other O&M expense. See Note 12 - "Fair Value Measurements" for additional information concerning the determination of fair value for Idaho Power’s assets and liabilities from price risk management activities. Credit Risk At March 31, 2023, Idaho Power did not have material credit risk exposure from financial instruments, including derivatives. Idaho Power monitors credit risk exposure through reviews of counterparty credit quality, corporate-wide counterparty credit exposure, and corporate-wide counterparty concentration levels. Idaho Power manages these risks by establishing credit and concentration limits on transactions with counterparties and requiring contractual guarantees, cash deposits, or letters of credit from counterparties or their affiliates, as deemed necessary. Idaho Power’s physical power contracts are commonly under WSPP, Inc. agreements, physical gas contracts are usually under North American Energy Standards Board contracts, and financial transactions are usually under International Swaps and Derivatives Association, Inc. contracts. These contracts typically contain adequate assurance clauses requiring collateralization if a counterparty has debt that is downgraded below investment grade by at least one rating agency. Credit-Contingent Features Certain of Idaho Power's derivative instruments contain provisions that require Idaho Power's unsecured debt to maintain an investment grade credit rating from Moody's and Standard & Poor's Ratings Services. If Idaho Power's unsecured debt were to fall below investment grade, it would be in violation of these provisions, and the counterparties to the derivative instruments could request immediate payment or demand immediate and ongoing full overnight collateralization on derivative instruments in net liability positions. The aggregate fair value of all derivative instruments with credit-risk-related contingent features that were in a liability position at March 31, 2023, was $40.2 million. Idaho Power posted $62.9 million of cash collateral related to its derivative instruments. If the credit-risk-related contingent features underlying these agreements were triggered on March 31, 2023, Idaho Power would have been required to pay or post collateral to its counterparties up to an additional $22.9 million to cover open liability positions as well as completed transactions that have not yet been paid. Derivative Instrument Summary The table below presents the fair values and locations of derivative instruments not designated as hedging instruments recorded on the balance sheets and reconciles the gross amounts of derivatives recognized as assets and as liabilities to the net amounts presented in the balance sheets at March 31, 2023, and December 31, 2022 (in thousands of dollars): Asset Derivatives Liability Derivatives Balance Sheet Location Gross Fair Value Amounts Offset Net Assets Gross Fair Value Amounts Offset Net Liabilities March 31, 2023 Current: Financial swaps Other current assets $ 1,611 $ (752) $ 859 $ 752 $ (752) $ — Financial swaps Other current liabilities 12,571 (12,571) — 34,658 (30,936) (1) 3,722 Forward contracts Other current liabilities — — — 1,890 — 1,890 Long-term: Financial swaps Other assets 2,224 (1,038) (2) 1,186 1,022 (1,022) — Forward contracts Other liabilities — — — 1,808 — 1,808 Total $ 16,406 $ (14,361) $ 2,045 $ 40,130 $ (32,710) $ 7,420 December 31, 2022 Current: Financial swaps Other current assets $ 72,548 $ (32,609) (3) $ 39,939 $ 13,982 $ (13,982) $ — Financial swaps Other current liabilities 132 (132) — 1,577 (132) 1,445 Forward contracts Other current assets 400 — 400 — — — Forward contracts Other current liabilities — — — 2,071 — 2,071 Long-term: Financial swaps Other assets 622 (43) 579 43 (43) — Financial swaps Other liabilities 644 (644) — 2,136 (644) 1,492 Forward contracts Other liabilities — — — 1,780 — 1,780 Total $ 74,346 $ (33,428) $ 40,918 $ 21,589 $ (14,801) $ 6,788 (1) Current liability derivative amounts offset include $18.4 million of collateral receivable at March 31, 2023. (2) Long-term asset derivative amounts offset include $16 thousand of collateral payable at March 31, 2023. (3) Current asset derivative amounts offset include $18.6 million of collateral payable at December 31, 2022. The table below presents the volumes of derivative commodity forward contracts and swaps outstanding at March 31, 2023 and 2022 (in thousands of units): March 31, Commodity Units 2023 2022 Electricity purchases MWh 1,066 538 Electricity sales MWh 40 128 Natural gas purchases MMBtu 31,775 16,635 Natural gas sales MMBtu 310 —

FAIR VALUE MEASUREMENTS_

FAIR VALUE MEASUREMENTS:	3 Months Ended
FAIR VALUE MEASUREMENTS:	Mar. 31, 2023
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Abstract]
FAIR VALUE MEASUREMENTS	FAIR VALUE MEASUREMENTS IDACORP and Idaho Power have categorized their financial instruments into a three-level fair value hierarchy, based on the priority of the inputs to the valuation technique. The fair value hierarchy gives the highest priority to quoted prices in active markets for identical assets or liabilities (Level 1) and the lowest priority to unobservable inputs (Level 3). If the inputs used to measure the financial instruments fall within different levels of the hierarchy, the categorization is based on the lowest level input that is significant to the fair value measurement of the instrument. Financial assets and liabilities recorded on the condensed consolidated balance sheets are categorized based on the inputs to the valuation techniques as follows: • Level 1: Financial assets and liabilities whose values are based on unadjusted quoted prices for identical assets or liabilities in an active market that IDACORP and Idaho Power have the ability to access. • Level 2: Financial assets and liabilities whose values are based on the following: a) quoted prices for similar assets or liabilities in active markets; b) quoted prices for identical or similar assets or liabilities in non-active markets; c) pricing models whose inputs are observable for substantially the full term of the asset or liability; and d) pricing models whose inputs are derived principally from or corroborated by observable market data through correlation or other means for substantially the full term of the asset or liability. IDACORP and Idaho Power Level 2 inputs for derivative instruments are based on quoted market prices adjusted for location using corroborated, observable market data or using quoted price which may be in non-active markets. • Level 3: Financial assets and liabilities whose values are based on prices or valuation techniques that require inputs that are both unobservable and significant to the overall fair value measurement. These inputs reflect management’s own assumptions about the assumptions a market participant would use in pricing the asset or liability. IDACORP’s and Idaho Power’s assessment of a particular input's significance to the fair value measurement requires judgment and may affect the valuation of fair value assets and liabilities and their placement within the fair value hierarchy. There were no transfers between levels or material changes in valuation techniques or inputs during the three months ended March 31, 2023. Certain instruments have been valued using net asset value (NAV) as a practical expedient. The NAV is generally not published and publicly available, nor are these instruments traded on an exchange. Instruments valued using NAV as a practical expedient are included in the fair value disclosures below; however, in accordance with GAAP are not classified within the fair value hierarchy levels. The following table presents information about IDACORP’s and Idaho Power’s assets and liabilities measured at fair value on a recurring basis as of March 31, 2023, and December 31, 2022 (in thousands of dollars). March 31, 2023 December 31, 2022 Level 1 Level 2 Level 3 Total Level 1 Level 2 Level 3 Total Assets: Money market funds and commercial paper IDACORP (1) $ 6,234 $ — $ — $ 6,234 $ 16,505 $ — $ — $ 16,505 Idaho Power 287,963 — — 287,963 34,468 — — 34,468 Derivatives 2,045 — — 2,045 40,518 400 — 40,918 Equity securities 33,083 — — 33,083 34,129 — — 34,129 IDACORP assets measured at NAV (not subject to hierarchy disclosure) (1) — — — 2,797 — — — 2,796 Liabilities: Derivatives 3,722 3,698 — 7,420 2,937 3,851 — 6,788 (1) Holding company only. Does not include amounts held by Idaho Power. Idaho Power’s derivatives are contracts entered into as part of its management of loads and resources. Electricity swap derivatives are valued on the Intercontinental Exchange (ICE) with quoted prices in an active market. Electricity forward contract derivatives are valued using a blend of two electricity exchanges, adjusted for location basis, as specified in the forward contract. Natural gas and diesel derivatives are valued using New York Mercantile Exchange (NYMEX) and ICE pricing, adjusted for location basis, which are also quoted under NYMEX and ICE pricing. Equity securities at Idaho Power consist of employee-directed investments related to an executive deferred compensation plan and actively traded money market and exchange traded funds related to the SMSP. The investments are measured using quoted prices in active markets and are held in a rabbi trust. The table below presents the carrying value and estimated fair value of financial instruments that are not reported at fair value, as of March 31, 2023, and December 31, 2022, using available market information and appropriate valuation methodologies (in thousands of dollars). March 31, 2023 December 31, 2022 Carrying Amount Estimated Fair Value Carrying Amount Estimated Fair Value IDACORP Assets: Notes receivable (1) $ 3,871 $ 3,871 $ 3,871 $ 3,871 Held-to-maturity securities (1)(2) 30,702 26,511 30,475 25,452 Liabilities: Long-term debt (including current portion) (1) 2,608,051 2,442,488 2,194,145 1,953,470 Idaho Power Assets: Held-to-maturity securities (1)(2) $ 30,702 $ 26,511 $ 30,475 $ 25,452 Liabilities: Long-term debt (including current portion) (1) 2,608,051 2,442,488 2,191,145 1,953,470 (1) Notes receivable are categorized as Level 3 and held-to-maturity securities and long-term debt are categorized as Level 2 of the fair value hierarchy, as defined earlier in this Note 12 - "Fair Value Measurements." (2) All held-to-maturity securities are carried at amortized cost and were in a gross unrealized holding loss position totaling $4.2 million and $5.0 million as of March 31, 2023, and December 31, 2022, respectively. Substantially all of these debt securities mature between 2027 and 2037. Based on ongoing credit evaluations of these holdings, Idaho Power does not expect payment defaults or delinquencies and had not recorded an allowance for credit losses for these securities as of March 31, 2023 and 2022. Notes receivable are related to Ida-West and are valued based on unobservable inputs, including forecasted cash flows, which are partially based on expected hydropower conditions. Held-to-maturity securities are held in a rabbi trust and are generally valued using quoted prices which may be in non-active markets. Long-term debt is not traded on an exchange and is valued using quoted rates for similar debt in active markets. Carrying values for cash and cash equivalents, deposits, customer and other receivables, notes payable, accounts payable, interest accrued, and taxes accrued approximate fair value.

SEGMENT INFORMATION_

SEGMENT INFORMATION:	3 Months Ended
SEGMENT INFORMATION:	Mar. 31, 2023
Segment Reporting, Measurement Disclosures [Abstract]
SEGMENT INFORMATION	SEGMENT INFORMATION IDACORP’s only reportable segment is utility operations. The utility operations segment’s primary source of revenue is the regulated operations of Idaho Power. Idaho Power’s regulated operations include the generation, transmission, distribution, purchase, and sale of electricity. This segment also includes income from IERCo, a wholly-owned subsidiary of Idaho Power that is also subject to regulation and is a one-third owner of BCC, an unconsolidated joint venture. IDACORP’s other operating segments are below the quantitative and qualitative thresholds for reportable segments and are included in the "All Other" category in the table below. This category is comprised of IFS’s investments in affordable housing and other real estate tax credit projects, Ida-West’s joint venture investments in small hydropower generation projects, and IDACORP’s holding company expenses. The table below summarizes the segment information for IDACORP’s utility operations and the total of all other segments, and reconciles this information to total enterprise amounts (in thousands). Utility All Eliminations Consolidated Three months ended March 31, 2023: Revenues $ 429,338 $ 321 $ — $ 429,659 Net income attributable to IDACORP, Inc. 55,710 388 — 56,098 Total assets as of March 31, 2023 7,789,605 203,447 (114,160) 7,878,892 Three months ended March 31, 2022: Revenues $ 343,921 $ 367 $ — $ 344,288 Net income attributable to IDACORP, Inc. 46,214 46 — 46,260

CHANGES IN ACCUMULATED OTHER CO

CHANGES IN ACCUMULATED OTHER COMPREHENSIVE INCOME (Notes)	3 Months Ended
CHANGES IN ACCUMULATED OTHER COMPREHENSIVE INCOME (Notes)	Mar. 31, 2023
Statement of Comprehensive Income [Abstract]
CHANGES IN ACCUMULATED OTHER COMPREHENSIVE INCOME	CHANGES IN ACCUMULATED OTHER COMPREHENSIVE INCOME The table below presents changes in components of accumulated other comprehensive income (AOCI), net of tax, during the three months ended March 31, 2023 and 2022 (in thousands). Items in parentheses indicate charges to AOCI. Defined Benefit Pension Items Three months ended 2023 2022 Balance at beginning of period $ (12,922) $ (40,040) Amounts reclassified out of AOCI 146 837 Balance at end of period $ (12,776) $ (39,203) The table below presents amounts reclassified out of components of AOCI and the income statement location of those amounts reclassified during the three months ended March 31, 2023 and 2022 (in thousands). Items in parentheses indicate increases to net income. Amount Reclassified from AOCI Details About AOCI Three months ended 2023 2022 Amortization of defined benefit pension items (1) Prior service cost $ 55 $ 70 Net loss 142 1,057 Total before tax 197 1,127 Tax benefit (2) (51) (290) Total reclassification for the period, net of tax $ 146 $ 837 (1) Amortization of these items is included in IDACORP's condensed consolidated income statements in other operating expenses and in Idaho Power's condensed consolidated statements of income in other expense, net. (2) The tax benefit is included in income tax expense in the condensed consolidated statements of income of both IDACORP and Idaho Power.

CHANGES IN IDAHO POWER RETAINED

CHANGES IN IDAHO POWER RETAINED EARNINGS (Notes)	3 Months Ended
CHANGES IN IDAHO POWER RETAINED EARNINGS (Notes)	Mar. 31, 2023
Changes in Idaho Power Retained Earnings [Abstract]
CHANGES IN IDAHO POWER RETAINED EARNINGS	CHANGES IN IDAHO POWER RETAINED EARNINGS The table below presents changes in Idaho Power retained earnings during the three months ended March 31, 2023 and 2022 (in thousands). Three months ended 2023 2022 Balance at beginning of period $ 1,836,547 $ 1,696,304 Net income 55,710 46,214 Dividends to parent (359) (38,198) Balance at end of period $ 1,891,898 $ 1,704,320

SUMMARY OF SIGNIFICANT ACCOUN_2

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES: Organization, Consolidation, Presentation, and Significant Accounting Policies (Policies)	3 Months Ended
	Mar. 31, 2023
Accounting Policies [Abstract]
Nature of Business	IDACORP is a holding company formed in 1998 whose principal operating subsidiary is Idaho Power. Idaho Power is an electric utility engaged in the generation, transmission, distribution, sale, and purchase of electric energy and capacity with a service area covering approximately 24,000 square miles in southern Idaho and eastern Oregon. Idaho Power is regulated primarily by the state utility regulatory commissions of Idaho and Oregon and the Federal Energy Regulatory Commission. Idaho Power is the parent of Idaho Energy Resources Co. (IERCo), a joint venturer in Bridger Coal Company (BCC), which mines and supplies coal to the Jim Bridger power plant (Jim Bridger plant) owned in part by Idaho Power.
Regulation of Utility Operations	As a regulated utility, many of Idaho Power's fundamental business decisions are subject to the approval of governmental agencies, including the prices that Idaho Power is authorized to charge for its electric service. These approvals are a critical factor in determining IDACORP's and Idaho Power's results of operations and financial condition.IDACORP's and Idaho Power's financial statements reflect the effects of the different ratemaking principles followed by the jurisdictions regulating Idaho Power. The application of accounting principles related to regulated operations sometimes results in Idaho Power recording expenses and revenues in a different period than when an unregulated enterprise would record such expenses and revenues. In these instances, the amounts are deferred or accrued as regulatory assets or regulatory liabilities on the balance sheet. Regulatory assets represent incurred costs that have been deferred because it is probable they will be recovered from customers through future rates. Regulatory liabilities represent obligations to make refunds to customers for previous collections, or represent amounts collected in advance of incurring an expense.
Financial Statements	In the opinion of management of IDACORP and Idaho Power, the accompanying unaudited condensed consolidated financial statements contain all adjustments necessary to present fairly each company's condensed consolidated balance sheets as of March 31, 2023, condensed consolidated statements of income for the three months ended March 31, 2023 and 2022, and condensed consolidated cash flows for the three months ended March 31, 2023 and 2022. These adjustments are of a normal and recurring nature. These financial statements do not contain the complete detail or note disclosures concerning accounting policies and other matters that would be included in full-year financial statements and should be read in conjunction with the audited consolidated financial statements included in IDACORP’s and Idaho Power’s Annual Report on Form 10-K for the year ended December 31, 2022 (2022 Annual Report). The statements of income for the interim period are not necessarily indicative of the results to be expected for the full year. A change in management's estimates or assumptions could have a material impact on IDACORP's or Idaho Power's respective balance sheets and statements of income during the period in which such change occurred.
Management Estimates	Management makes estimates and assumptions when preparing financial statements in conformity with accounting principles generally accepted in the United States of America (GAAP). These estimates and assumptions include, among others, those related to rate regulation, retirement benefits, contingencies, asset impairment, income taxes, unbilled revenues, and bad debt. These estimates and assumptions affect the reported amounts of assets and liabilities and 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. These estimates involve judgments with respect to, among other things, future economic factors that are difficult to predict and are beyond management's control. Accordingly, actual results could differ from those estimates.
New and Recently Adopted Accounting Pronouncements	There have been no recently issued accounting pronouncements that have had or are expected to have a material impact on IDACORP's or Idaho Power's condensed consolidated financial statements.
Income Tax	In accordance with interim reporting requirements, IDACORP and Idaho Power use an estimated annual effective tax rate for computing their provisions for income taxes. An estimate of annual income tax expense (or benefit) is made each interim period using estimates for annual pre-tax income, income tax adjustments, and tax credits. The estimated annual effective tax rates do not include discrete events such as tax law changes, examination settlements, accounting method changes, or adjustments to tax expense or benefits attributable to prior years. Discrete events are recorded in the interim period in which they occur or become known. The estimated annual effective tax rate is applied to year-to-date pre-tax income to determine income tax expense (or benefit) for the interim period consistent with the annual estimate. In subsequent interim periods, income tax expense (or benefit) for the period is computed as the difference between the year-to-date amount reported for the previous interim period and the current period's year-to-date amount.
Revenue Recognition	The FCA mechanism revenues include only the initial recognition of FCA revenues when they meet the regulator-specified conditions for recognition. Revenue from contracts with customers excludes the portion of the tariff price representing FCA revenues that Idaho Power initially recorded in prior periods when revenues met regulator-specified conditions. When Idaho Power includes those amounts in the price of utility service and billed to customers, Idaho Power records such amounts as recovery of the associated regulatory asset or liability and not as revenues. Derivative revenues include gains from settled electricity swaps and sales of electricity under forward sales contracts that are bundled with renewable energy credits. Related to these forward sales, Idaho Power simultaneously enters into forward purchases of electricity for the same quantity at the same location, which are recorded in purchased power on the condensed consolidated statements of income.
Fair Value of Financial Instruments	IDACORP and Idaho Power have categorized their financial instruments into a three-level fair value hierarchy, based on the priority of the inputs to the valuation technique. The fair value hierarchy gives the highest priority to quoted prices in active markets for identical assets or liabilities (Level 1) and the lowest priority to unobservable inputs (Level 3). If the inputs used to measure the financial instruments fall within different levels of the hierarchy, the categorization is based on the lowest level input that is significant to the fair value measurement of the instrument. Financial assets and liabilities recorded on the condensed consolidated balance sheets are categorized based on the inputs to the valuation techniques as follows: • Level 1: Financial assets and liabilities whose values are based on unadjusted quoted prices for identical assets or liabilities in an active market that IDACORP and Idaho Power have the ability to access. • Level 2: Financial assets and liabilities whose values are based on the following: a) quoted prices for similar assets or liabilities in active markets; b) quoted prices for identical or similar assets or liabilities in non-active markets; c) pricing models whose inputs are observable for substantially the full term of the asset or liability; and d) pricing models whose inputs are derived principally from or corroborated by observable market data through correlation or other means for substantially the full term of the asset or liability. IDACORP and Idaho Power Level 2 inputs for derivative instruments are based on quoted market prices adjusted for location using corroborated, observable market data or using quoted price which may be in non-active markets. • Level 3: Financial assets and liabilities whose values are based on prices or valuation techniques that require inputs that are both unobservable and significant to the overall fair value measurement. These inputs reflect management’s own assumptions about the assumptions a market participant would use in pricing the asset or liability.
Derivatives, Methods of Accounting, Derivatives Not Designated or Qualifying as Hedges [Policy Text Block]	Idaho Power is exposed to market risk relating to electricity, natural gas, and other fuel commodity prices, all of which are heavily influenced by supply and demand. Market risk may be influenced by market participants’ nonperformance of their contractual obligations and commitments, which affects the supply of or demand for the commodity. Idaho Power uses derivative instruments, such as physical and financial forward contracts, for both electricity and fuel to manage the risks relating to these commodity price exposures. The primary objectives of Idaho Power’s energy purchase and sale activity are to meet the demand of retail electric customers, maintain appropriate physical reserves to ensure reliability, and make economic use of temporary surpluses that may develop. All of Idaho Power's derivative instruments have been entered into for the purpose of securing energy resources for future periods or economically hedging forecasted purchases and sales, though none of these instruments have been designated as cash flow hedges. Idaho Power offsets fair value amounts recognized on its balance sheet and applies collateral related to derivative instruments executed with the same counterparty under the same master netting agreement. Idaho Power does not offset a counterparty's current derivative contracts with the counterparty's long-term derivative contracts, although Idaho Power's master netting arrangements would allow current and long-term positions to be offset in the event of default. Also, in the event of default, Idaho Power's master netting arrangements would allow for the offsetting of all transactions executed under the master netting arrangement. These types of transactions may include non-derivative instruments, derivatives qualifying for scope exceptions, receivables and payables arising from settled positions, and other forms of non-cash collateral (such as letters of credit). These types of transactions are excluded from the offsetting presented in the derivative fair value and offsetting table that follows.
Derivatives, Reporting of Derivative Activity	Settlement gains and losses on electricity swap contracts are recorded on the income statement in operating revenues or purchased power depending on the forecasted position being economically hedged by the derivative contract. Settlement gains and losses on contracts for natural gas are reflected in fuel expense. Settlement gains and losses on diesel derivatives are recorded in other O&M expense.
Segment Reporting	IDACORP’s only reportable segment is utility operations. The utility operations segment’s primary source of revenue is the regulated operations of Idaho Power. Idaho Power’s regulated operations include the generation, transmission, distribution, purchase, and sale of electricity. This segment also includes income from IERCo, a wholly-owned subsidiary of Idaho Power that is also subject to regulation and is a one-third owner of BCC, an unconsolidated joint venture. IDACORP’s other operating segments are below the quantitative and qualitative thresholds for reportable segments and are included in the "All Other" category in the table below. This category is comprised of IFS’s investments in affordable housing and other real estate tax credit projects, Ida-West’s joint venture investments in small hydropower generation projects, and IDACORP’s holding company expenses.
Receivables, Trade and Other Accounts Receivable, Allowance for Doubtful Accounts, Policy	Receivables and Allowance for Uncollectible Accounts The following table provides a rollforward of the allowance for uncollectible accounts related to customer receivables for the three months ended March 31, 2023 and 2022 (in thousands): Three months ended 2023 2022 Balance at beginning of period $ 5,034 $ 4,499 Additions to the allowance 577 488 Write-offs, net of recoveries (549) (137) Balance at end of period $ 5,062 $ 4,850 Allowance for uncollectible accounts as a percentage of customer receivables 4.8 % 5.6 %

Organization, Consolidation and

Organization, Consolidation and Presentation of Financial Statements (Tables)	3 Months Ended
	Mar. 31, 2023
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Schedule of Derivative Instruments in Statement of Financial Position, Fair Value	The table below presents the fair values and locations of derivative instruments not designated as hedging instruments recorded on the balance sheets and reconciles the gross amounts of derivatives recognized as assets and as liabilities to the net amounts presented in the balance sheets at March 31, 2023, and December 31, 2022 (in thousands of dollars): Asset Derivatives Liability Derivatives Balance Sheet Location Gross Fair Value Amounts Offset Net Assets Gross Fair Value Amounts Offset Net Liabilities March 31, 2023 Current: Financial swaps Other current assets $ 1,611 $ (752) $ 859 $ 752 $ (752) $ — Financial swaps Other current liabilities 12,571 (12,571) — 34,658 (30,936) (1) 3,722 Forward contracts Other current liabilities — — — 1,890 — 1,890 Long-term: Financial swaps Other assets 2,224 (1,038) (2) 1,186 1,022 (1,022) — Forward contracts Other liabilities — — — 1,808 — 1,808 Total $ 16,406 $ (14,361) $ 2,045 $ 40,130 $ (32,710) $ 7,420 December 31, 2022 Current: Financial swaps Other current assets $ 72,548 $ (32,609) (3) $ 39,939 $ 13,982 $ (13,982) $ — Financial swaps Other current liabilities 132 (132) — 1,577 (132) 1,445 Forward contracts Other current assets 400 — 400 — — — Forward contracts Other current liabilities — — — 2,071 — 2,071 Long-term: Financial swaps Other assets 622 (43) 579 43 (43) — Financial swaps Other liabilities 644 (644) — 2,136 (644) 1,492 Forward contracts Other liabilities — — — 1,780 — 1,780 Total $ 74,346 $ (33,428) $ 40,918 $ 21,589 $ (14,801) $ 6,788 (1) Current liability derivative amounts offset include $18.4 million of collateral receivable at March 31, 2023. (2) Long-term asset derivative amounts offset include $16 thousand of collateral payable at March 31, 2023.

INCOME TAXES_ Level 3 (Tables)

INCOME TAXES: Level 3 (Tables)	3 Months Ended
INCOME TAXES: Level 3 (Tables)	Mar. 31, 2023
Income Tax Disclosure [Abstract]
Schedule of Components of Income Tax Expense (Benefit) [Table Text Block]	The following table provides a summary of income tax expense for the three months ended March 31, 2023 and 2022 (in thousands): IDACORP Idaho Power 2023 2022 2023 2022 Income tax at statutory rates (federal and state) $ 16,266 $ 13,458 $ 16,299 $ 13,619 Additional accumulated deferred investment tax credits (ADITC) (3,750) — (3,750) — Excess deferred income tax reversal (2,671) (2,503) (2,671) (2,503) Other (1) (2,750) (4,929) (2,268) (4,419) Income tax expense $ 7,095 $ 6,026 $ 7,610 $ 6,697 Effective tax rate 11.2 % 11.5 % 12.0 % 12.7 %

REVENUES_ Electric utility oper

REVENUES: Electric utility operating revenues (Tables)	3 Months Ended
REVENUES: Electric utility operating revenues (Tables)	Mar. 31, 2023
Revenues [Abstract]
Electric utility operating revenues [Table Text Block]	The following table provides a summary of electric utility operating revenues for IDACORP and Idaho Power for the three months ended March 31, 2023 and 2022 (in thousands): Three months ended 2023 2022 Revenue from contracts with customers $ 385,666 $ 318,182 Alternative revenue programs and other revenues 43,672 25,739 Total electric utility operating revenues $ 429,338 $ 343,921
Disaggregation of Revenue [Table Text Block]	The following table presents revenues from contracts with customers disaggregated by revenue source for the three months ended March 31, 2023 and 2022 (in thousands): Three months ended 2023 2022 Retail revenues: Residential (includes $8,909, and $10,093, respectively, related to the FCA) (1) $ 188,536 $ 169,295 Commercial (includes $276, and $283, respectively, related to the FCA) (1) 87,830 78,566 Industrial 55,544 49,060 Irrigation 933 1,041 Deferred revenue related to HCC relicensing AFUDC (2) (2,119) (2,119) Total retail revenues 330,724 295,843 Less: FCA mechanism revenues (1) (9,185) (10,376) Wholesale energy sales 30,195 3,035 Transmission wheeling-related revenues 21,585 16,466 Energy efficiency program revenues 5,215 6,589 Other revenues from contracts with customers 7,132 6,625 Total revenues from contracts with customers $ 385,666 $ 318,182 (1) The FCA mechanism is an alternative revenue program in the Idaho jurisdiction and does not represent revenue from contracts with customers. (2) The IPUC allows Idaho Power to recover a portion of the allowance for funds used during construction (AFUDC) on construction work in progress related to the Hells Canyon Complex (HCC) relicensing process, even though the relicensing process is not yet complete and the costs have not been moved to electric plant in service. Idaho Power is collecting $8.8 million annually in the Idaho jurisdiction but is deferring revenue recognition of the amounts collected until the license is issued and the accumulated license costs approved for recovery are placed in service.
Alternative revenue programs and other revenues [Table Text Block]	The table below presents the FCA mechanism revenues and other revenues for the three months ended March 31, 2023 and 2022 (in thousands): Three months ended 2023 2022 FCA mechanism revenues $ 9,185 10,376 Derivative revenues 34,487 15,363 Total alternative revenue programs and other revenues $ 43,672 $ 25,739
Accounts Receivable, Allowance for Credit Loss [Table Text Block]	The following table provides a rollforward of the allowance for uncollectible accounts related to customer receivables for the three months ended March 31, 2023 and 2022 (in thousands): Three months ended 2023 2022 Balance at beginning of period $ 5,034 $ 4,499 Additions to the allowance 577 488 Write-offs, net of recoveries (549) (137) Balance at end of period $ 5,062 $ 4,850 Allowance for uncollectible accounts as a percentage of customer receivables 4.8 % 5.6 %

EARNINGS PER SHARE_ Level 3 (Ta

EARNINGS PER SHARE: Level 3 (Tables)	3 Months Ended
EARNINGS PER SHARE: Level 3 (Tables)	Mar. 31, 2023
Earnings Per Share [Abstract]
Schedule of Earnings Per Share, Diluted, by Common Class, Including Two Class Method	The table below presents the computation of IDACORP’s basic and diluted earnings per share for the three months ended March 31, 2023 and 2022 (in thousands, except for per share amounts). Three months ended 2023 2022 Numerator: Net income attributable to IDACORP, Inc. $ 56,098 $ 46,260 Denominator: Weighted-average common shares outstanding - basic 50,688 50,632 Effect of dilutive securities 35 28 Weighted-average common shares outstanding - diluted 50,723 50,660 Basic earnings per share $ 1.11 $ 0.91 Diluted earnings per share $ 1.11 $ 0.91

BENEFIT PLANS_ Level 3 (Tables)

BENEFIT PLANS: Level 3 (Tables)	3 Months Ended
BENEFIT PLANS: Level 3 (Tables)	Mar. 31, 2023
Retirement Benefits [Abstract]
Schedule of Defined Benefit Plans Disclosures [Table Text Block]	The table below shows the components of net periodic benefit costs for the pension, SMSP, and postretirement benefits plans for the three months ended March 31, 2023 and 2022 (in thousands). Pension Plan SMSP Postretirement Total 2023 2022 2023 2022 2023 2022 2023 2022 Service cost $ 8,078 $ 13,164 $ 153 $ 296 $ 178 $ 270 $ 8,409 $ 13,730 Interest cost 12,654 10,084 1,331 974 773 526 14,758 11,584 Expected return on plan assets (15,434) (18,037) — — (419) (591) (15,853) (18,628) Amortization of prior service cost 2 2 55 70 416 (1) 473 71 Amortization of net loss — 3,548 142 1,057 (272) (11) (130) 4,594 Net periodic benefit cost 5,300 8,761 1,681 2,397 676 193 7,657 11,351 Regulatory deferral of net periodic benefit cost (1) (5,060) (8,373) — — — — (5,060) (8,373) Previously deferred pension costs recognized (1) 4,288 4,288 — — — — 4,288 4,288 Net periodic benefit cost recognized for financial reporting (1)(2) $ 4,528 $ 4,676 $ 1,681 $ 2,397 $ 676 $ 193 $ 6,885 $ 7,266 (1) Net periodic benefit costs for the pension plan are recognized for financial reporting based upon the authorization of each regulatory jurisdiction in which Idaho Power operates. Under IPUC order, the Idaho portion of net periodic benefit cost is recorded as a regulatory asset and is recognized in the income statement as those costs are recovered through rates. (2) Of total net periodic benefit cost recognized for financial reporting, $5.3 million and $4.9 million, respectively, were recognized in "Other operations and maintenance" and $1.6 million and $2.4 million, respectively, were recognized in "Other income, net" on the condensed consolidated statements of income of the companies for the three months ended March 31, 2023 and 2022.

DERIVATIVE FINANCIAL INSTRUME_2

DERIVATIVE FINANCIAL INSTRUMENTS: Level 3 (Tables)	3 Months Ended
DERIVATIVE FINANCIAL INSTRUMENTS: Level 3 (Tables)	Mar. 31, 2023
Summary of Derivative Instruments [Abstract]
Schedule of Derivative Instruments, Gain (Loss) in Statement of Financial Performance	The table below presents the gains and losses on derivatives not designated as hedging instruments for the three months ended March 31, 2023 and 2022 (in thousands of dollars): Gain/(Loss) on Derivatives Recognized in Income (1) Location of Realized Gain/(Loss) on Derivatives Recognized in Income Three months ended 2023 2022 Financial swaps Operating revenues $ (1,079) $ 582 Financial swaps Purchased power 1,626 116 Financial swaps Fuel expense 23,537 1,460 Forward contracts Operating revenues 636 179 Forward contracts Purchased power (600) (179) Forward contracts Fuel expense (420) (54) (1) Excludes unrealized gains or losses on derivatives, which are recorded on the balance sheet as regulatory assets or regulatory liabilities.
Schedule of Derivative Instruments in Statement of Financial Position, Fair Value	The table below presents the fair values and locations of derivative instruments not designated as hedging instruments recorded on the balance sheets and reconciles the gross amounts of derivatives recognized as assets and as liabilities to the net amounts presented in the balance sheets at March 31, 2023, and December 31, 2022 (in thousands of dollars): Asset Derivatives Liability Derivatives Balance Sheet Location Gross Fair Value Amounts Offset Net Assets Gross Fair Value Amounts Offset Net Liabilities March 31, 2023 Current: Financial swaps Other current assets $ 1,611 $ (752) $ 859 $ 752 $ (752) $ — Financial swaps Other current liabilities 12,571 (12,571) — 34,658 (30,936) (1) 3,722 Forward contracts Other current liabilities — — — 1,890 — 1,890 Long-term: Financial swaps Other assets 2,224 (1,038) (2) 1,186 1,022 (1,022) — Forward contracts Other liabilities — — — 1,808 — 1,808 Total $ 16,406 $ (14,361) $ 2,045 $ 40,130 $ (32,710) $ 7,420 December 31, 2022 Current: Financial swaps Other current assets $ 72,548 $ (32,609) (3) $ 39,939 $ 13,982 $ (13,982) $ — Financial swaps Other current liabilities 132 (132) — 1,577 (132) 1,445 Forward contracts Other current assets 400 — 400 — — — Forward contracts Other current liabilities — — — 2,071 — 2,071 Long-term: Financial swaps Other assets 622 (43) 579 43 (43) — Financial swaps Other liabilities 644 (644) — 2,136 (644) 1,492 Forward contracts Other liabilities — — — 1,780 — 1,780 Total $ 74,346 $ (33,428) $ 40,918 $ 21,589 $ (14,801) $ 6,788 (1) Current liability derivative amounts offset include $18.4 million of collateral receivable at March 31, 2023. (2) Long-term asset derivative amounts offset include $16 thousand of collateral payable at March 31, 2023.
Schedule of Derivative Instruments	The table below presents the volumes of derivative commodity forward contracts and swaps outstanding at March 31, 2023 and 2022 (in thousands of units): March 31, Commodity Units 2023 2022 Electricity purchases MWh 1,066 538 Electricity sales MWh 40 128 Natural gas purchases MMBtu 31,775 16,635 Natural gas sales MMBtu 310 —

FAIR VALUE MEASUREMENTS_ Level

FAIR VALUE MEASUREMENTS: Level 3 (Tables)	3 Months Ended
FAIR VALUE MEASUREMENTS: Level 3 (Tables)	Mar. 31, 2023
Fair Value Disclosures [Abstract]
Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Table Text Block]	The following table presents information about IDACORP’s and Idaho Power’s assets and liabilities measured at fair value on a recurring basis as of March 31, 2023, and December 31, 2022 (in thousands of dollars). March 31, 2023 December 31, 2022 Level 1 Level 2 Level 3 Total Level 1 Level 2 Level 3 Total Assets: Money market funds and commercial paper IDACORP (1) $ 6,234 $ — $ — $ 6,234 $ 16,505 $ — $ — $ 16,505 Idaho Power 287,963 — — 287,963 34,468 — — 34,468 Derivatives 2,045 — — 2,045 40,518 400 — 40,918 Equity securities 33,083 — — 33,083 34,129 — — 34,129 IDACORP assets measured at NAV (not subject to hierarchy disclosure) (1) — — — 2,797 — — — 2,796 Liabilities: Derivatives 3,722 3,698 — 7,420 2,937 3,851 — 6,788 (1) Holding company only. Does not include amounts held by Idaho Power.
Fair Value, by Balance Sheet Grouping [Table Text Block]	The table below presents the carrying value and estimated fair value of financial instruments that are not reported at fair value, as of March 31, 2023, and December 31, 2022, using available market information and appropriate valuation methodologies (in thousands of dollars). March 31, 2023 December 31, 2022 Carrying Amount Estimated Fair Value Carrying Amount Estimated Fair Value IDACORP Assets: Notes receivable (1) $ 3,871 $ 3,871 $ 3,871 $ 3,871 Held-to-maturity securities (1)(2) 30,702 26,511 30,475 25,452 Liabilities: Long-term debt (including current portion) (1) 2,608,051 2,442,488 2,194,145 1,953,470 Idaho Power Assets: Held-to-maturity securities (1)(2) $ 30,702 $ 26,511 $ 30,475 $ 25,452 Liabilities: Long-term debt (including current portion) (1) 2,608,051 2,442,488 2,191,145 1,953,470 (1) Notes receivable are categorized as Level 3 and held-to-maturity securities and long-term debt are categorized as Level 2 of the fair value hierarchy, as defined earlier in this Note 12 - "Fair Value Measurements." (2) All held-to-maturity securities are carried at amortized cost and were in a gross unrealized holding loss position totaling $4.2 million and $5.0 million as of March 31, 2023, and December 31, 2022, respectively. Substantially all of these debt securities mature between 2027 and 2037. Based on ongoing credit evaluations of these holdings, Idaho Power does not expect payment defaults or delinquencies and had not recorded an allowance for credit losses for these securities as of March 31, 2023 and 2022.

SEGMENT INFORMATION_ Level 3 (T

SEGMENT INFORMATION: Level 3 (Tables)	3 Months Ended
SEGMENT INFORMATION: Level 3 (Tables)	Mar. 31, 2023
Segment Information [Abstract]
Schedule of Segment Reporting Information, by Segment	The table below summarizes the segment information for IDACORP’s utility operations and the total of all other segments, and reconciles this information to total enterprise amounts (in thousands). Utility All Eliminations Consolidated Three months ended March 31, 2023: Revenues $ 429,338 $ 321 $ — $ 429,659 Net income attributable to IDACORP, Inc. 55,710 388 — 56,098 Total assets as of March 31, 2023 7,789,605 203,447 (114,160) 7,878,892 Three months ended March 31, 2022: Revenues $ 343,921 $ 367 $ — $ 344,288 Net income attributable to IDACORP, Inc. 46,214 46 — 46,260

CHANGES IN ACCUMULATED OTHER _2

CHANGES IN ACCUMULATED OTHER COMPREHENSIVE INCOME (Tables)	3 Months Ended
CHANGES IN ACCUMULATED OTHER COMPREHENSIVE INCOME (Tables)	Mar. 31, 2023
Statement of Comprehensive Income [Abstract]
Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block]	The table below presents changes in components of accumulated other comprehensive income (AOCI), net of tax, during the three months ended March 31, 2023 and 2022 (in thousands). Items in parentheses indicate charges to AOCI. Defined Benefit Pension Items Three months ended 2023 2022 Balance at beginning of period $ (12,922) $ (40,040) Amounts reclassified out of AOCI 146 837 Balance at end of period $ (12,776) $ (39,203)
Reclassification out of Accumulated Other Comprehensive Income [Table Text Block]	The table below presents amounts reclassified out of components of AOCI and the income statement location of those amounts reclassified during the three months ended March 31, 2023 and 2022 (in thousands). Items in parentheses indicate increases to net income. Amount Reclassified from AOCI Details About AOCI Three months ended 2023 2022 Amortization of defined benefit pension items (1) Prior service cost $ 55 $ 70 Net loss 142 1,057 Total before tax 197 1,127 Tax benefit (2) (51) (290) Total reclassification for the period, net of tax $ 146 $ 837 (1) Amortization of these items is included in IDACORP's condensed consolidated income statements in other operating expenses and in Idaho Power's condensed consolidated statements of income in other expense, net. (2) The tax benefit is included in income tax expense in the condensed consolidated statements of income of both IDACORP and Idaho Power.

CHANGES IN IDAHO POWER RETAIN_2

CHANGES IN IDAHO POWER RETAINED EARNINGS (Tables)	3 Months Ended
CHANGES IN IDAHO POWER RETAINED EARNINGS (Tables)	Mar. 31, 2023
Changes in Idaho Power Retained Earnings [Abstract]
Changes in Idaho Power Retained Earnings Table	Three months ended 2023 2022 Balance at beginning of period $ 1,836,547 $ 1,696,304 Net income 55,710 46,214 Dividends to parent (359) (38,198) Balance at end of period $ 1,891,898 $ 1,704,320

INCOME TAXES_ Level 4 (Details)

INCOME TAXES: Level 4 (Details) - USD ($) $ in Thousands		3 Months Ended
INCOME TAXES: Level 4 (Details) - USD ($) $ in Thousands		Mar. 31, 2023	Mar. 31, 2022
Income Tax Expense [Line Items]
Effective Income Tax Rate Reconciliation at Federal Statutory Income Tax Rate, Amount		$ 16,266	$ 13,458
Effective Income Tax Rate Reconciliation, Other Reconciling Items, Amount		(3,750)	0
Excess deferred income tax reversal		(2,671)	(2,503)
Other	[1]	(2,750)	(4,929)
Income Tax Expense		$ 7,095	$ 6,026
Effective tax rate		11.20%	11.50%
Idaho Power Company [Member]
Income Tax Expense [Line Items]
Effective Income Tax Rate Reconciliation at Federal Statutory Income Tax Rate, Amount		$ 16,299	$ 13,619
Effective Income Tax Rate Reconciliation, Other Reconciling Items, Amount		(3,750)	0
Excess deferred income tax reversal		(2,671)	(2,503)
Other	[1]	(2,268)	(4,419)
Income Tax Expense		$ 7,610	$ 6,697
Effective tax rate		12%	12.70%

[1]"Other" is primarily comprised of the net tax effect of Idaho Power's regulatory flow-through tax adjustments.

REGULATORY MATTERS_ Level 4 (De

REGULATORY MATTERS: Level 4 (Details) - USD ($) $ in Thousands		3 Months Ended		12 Months Ended
	Jun. 01, 2022	Mar. 31, 2023	Mar. 31, 2022	May 31, 2024	Jun. 01, 2023	Jun. 01, 2020	Apr. 30, 2018
Settlement Stipulation - Investment Tax Credits and Idaho Sharing Mechanism
Regulatory Matters
Additional accumulated deferred investment tax credits (ADITC) amortization		$ 3,750	$ 0
May 2018 Tax Reform Settlement Stipulation
Regulatory Matters
Investment Tax Credits, Maximum, in Rate Case		41,250
Idaho fixed cost adjustment mechanism
Regulatory Matters
Percentage cap on the FCA adjustment						3%
Idaho Jurisdiction Fixed Cost Adjustment
Regulatory Matters
Annual fixed cost adjustment mechanism deferral	$ 35,200
Subsequent Event \| Idaho Power Cost Adjustment
Regulatory Matters
Public Utilities, Approved Rate Increase (Decrease), Amount				$ 200,200
Subsequent Event \| Idaho Jurisdiction Fixed Cost Adjustment
Regulatory Matters
Public Utilities, Requested Rate Increase (Decrease), Amount				$ (10,100)
Annual fixed cost adjustment mechanism deferral					$ 25,100
Subsequent Event \| Oregon jurisdiction
Regulatory Matters
Annual Power Cost Update					$ 9,000
IDAHO \| May 2018 Tax Reform Settlement Stipulation
Regulatory Matters
Minimum authorized return on equity							9.40%
Target authorized return on equity							10%
IDAHO \| Jim Bridger Plant
Regulatory Matters
Public Utilities, Requested Rate Increase (Decrease), Amended, Amount	27,100
Public Utilities, Approved Rate Increase (Decrease), Amount	$ 18,800
Public Utilities, Requested Rate Increase (Decrease), Percentage	2.10%
Public Utilities, Approved Rate Increase (Decrease), Percentage	1.50%
IDAHO \| Wildfire mitigation plan costs
Regulatory Matters
Regulatory Assets		$ 34,800

REVENUES_ Electric utility op_2

REVENUES: Electric utility operating revenues (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Revenues [Abstract]
Revenue from contracts with customers	$ 385,666	$ 318,182
Alternative revenue programs and other revenues	43,672	25,739
Electric utility revenues	$ 429,338	$ 343,921

REVENUES_ (Details)

REVENUES: (Details) - USD ($) $ in Thousands		3 Months Ended
REVENUES: (Details) - USD ($) $ in Thousands		Mar. 31, 2023	Mar. 31, 2022
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers		$ 385,666	$ 318,182
Alternative revenue programs and other revenues		43,672	25,739
Retail revenues
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers		330,724	295,843
Idaho fixed cost adjustment mechanism
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	[1]	(9,185)	(10,376)
Alternative revenue programs and other revenues		9,185	10,376
Wholesale energy sales
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers		30,195	3,035
Transmission Service Agreement
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers		21,585	16,466
Energy efficiency program revenues
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers		5,215	6,589
Other revenues
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers		7,132	6,625
Derivative revenues
Disaggregation of Revenue [Line Items]
Alternative revenue programs and other revenues		34,487	15,363
Residential Retail Revenue \| Retail revenues
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	[1]	188,536	169,295
Residential Retail Revenue \| Idaho fixed cost adjustment mechanism
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers		8,909	10,093
Commercial Retail Revenue \| Retail revenues
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	[1]	87,830	78,566
Commercial Retail Revenue \| Idaho fixed cost adjustment mechanism
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers		276	283
Industrial Retail Revenue \| Retail revenues
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers		55,544	49,060
Irrigation Retail Revenue \| Retail revenues
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers		933	1,041
Deferred revenue-AFUDC \| Retail revenues
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	[2]	(2,119)	(2,119)
IPUC authorized AFUDC Collection HCC Relicensing - Gross \| Idaho Power Company [Member] \| Hells Canyon Complex
Disaggregation of Revenue [Line Items]
Regulatory liabilities		$ (8,800)	$ (8,800)

[1]The FCA mechanism is an alternative revenue program in the Idaho jurisdiction and does not represent revenue from contracts with customers.[2]The IPUC allows Idaho Power to recover a portion of the allowance for funds used during construction (AFUDC) on construction work in progress related to the Hells Canyon Complex (HCC) relicensing process, even though the relicensing process is not yet complete and the costs have not been moved to electric plant in service. Idaho Power is collecting $8.8 million annually in the Idaho jurisdiction but is deferring revenue recognition of the amounts collected until the license is issued and the accumulated license costs approved for recovery are placed in service.

REVENUES_ Receivables and Allow

REVENUES: Receivables and Allowance for Uncollectible Accounts (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Accounts Receivable, Allowance for Credit Loss [Roll Forward]
Balance at beginning of period	$ 5,034	$ 4,499
Additions to the allowance	577	488
Write-offs, net of recoveries	(549)	(137)
Balance at end of period	$ 5,062	$ 4,850
Allowance for uncollectible accounts as a percentage of customer receivables	4.80%	5.60%

LONG-TERM DEBT (Details)

LONG-TERM DEBT (Details) - USD ($) $ in Thousands	3 Months Ended
LONG-TERM DEBT (Details) - USD ($) $ in Thousands	Jun. 30, 2023	Mar. 31, 2023	Apr. 01, 2023	Mar. 14, 2023	Mar. 08, 2023	Dec. 22, 2022	Mar. 31, 2022
Private Placement
Debt Instrument [Line Items]
Secured Long-term Debt, Noncurrent						$ 170,000
First Mortgage Bonds 2.50 Series due 2023 [Domain]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage		2.50%
Secured Debt, Current		$ 75,000
First Mortgage Bonds 2.50 Series due 2023 [Domain] \| Subsequent Event
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage			2.50%
Repayments of Debt	$ 75,000
Term Loan Facility
Debt Instrument [Line Items]
Repayments of Lines of Credit		100,000
Private Placement \| First Mortgage Bonds 5.06 Series Due 2043 [Domain]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage					5.06%
Secured Long-term Debt, Noncurrent					$ 60,000
Private Placement \| First Mortgage Bonds 5.20 Series Due 2053 [Domain]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage					5.20%
Secured Long-term Debt, Noncurrent					$ 62,000
First Mortgage \| First mortgage bonds 5.50 Series due 2053 [Domain]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage				5.50%
Secured Long-term Debt, Noncurrent				$ 400,000
Unsecured Debt \| Term Loan Facility
Debt Instrument [Line Items]
Long-term Line of Credit, Noncurrent							$ 150,000
Line of Credit, Current		$ 50,000

COMMON STOCK_ Level 4 (Details)

COMMON STOCK: Level 4 (Details) $ in Billions	3 Months Ended
COMMON STOCK: Level 4 (Details) $ in Billions	Mar. 31, 2023 USD ($) shares
Idaho Power Company [Member]
Shareholders' equity
Ratio of Indebtedness to Net Capital	0.49
Dividend Distribution Restriction Amount \| $	$ 1.3
Dividend Distribution Restriction Threshold	0.35
Ratio of total Capital to total capital and long-term debt	0.51
Preferred Stock, Shares Outstanding	0
IDACORP
Shareholders' equity
Restricted Stock Unit Awards to Employees	75,295
Stock Issued During Period, Shares, New Issues	45,719
Maximum leverage ratio requirement	0.65
Ratio of Indebtedness to Net Capital	0.48
Dividend Distribution Restriction Amount \| $	$ 1.4
IDACORP \| Directors
Shareholders' equity
Stock Issued During Period, Shares, New Issues	6,664

EARNINGS PER SHARE_ Level 4 (De

EARNINGS PER SHARE: Level 4 (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Numerator:
Net Income Attributable to IDACORP, Inc.	$ 56,098	$ 46,260
Denominator:
Weighted-average common shares outstanding - basic	50,688	50,632
Effect of dilutive securities	35	28
Weighted-average common shares outstanding - diluted	50,723	50,660
Earnings attributable to IDACORP, Inc. - basic (in dollars per share)	$ 1.11	$ 0.91
Earnings attributable to IDACORP, Inc. - diluted (in dollars per share)	$ 1.11	$ 0.91

COMMITMENTS_ Level 4 (Details)

COMMITMENTS: Level 4 (Details) $ in Thousands	1 Months Ended	3 Months Ended
COMMITMENTS: Level 4 (Details) $ in Thousands	Apr. 30, 2023 USD ($) MWh	Mar. 31, 2023 USD ($)
Idaho Power Company [Member]
Guarantor Obligations
IERCo guarantee of BCC reclamation obligation		$ 47,300
Idaho Power Company [Member] \| Jointly Owned Electricity Transmission and Distribution System
Long-term Commitment (Excluding Unconditional Purchase Obligation) [Abstract]
Cash and Cash Equivalents, Security Deposit		10,000
Other Noncurrent Liabilities, Security Deposit and Permitting Interest		41,400
Construction in Progress, Permitting Interest Acquired		$ 31,400
Interest in Boardman-to-Hemmingway acquired from Bonneville Power Administration		24%
Interest in Boardman-to-Hemmingway transmission project		45%
BPA permitting interest, time period		15 years
Security Deposit Received, B2H Transmission Project		$ 10,000
Idaho Power Company [Member] \| Subsequent Event \| CSPP on-line \| Forecast [Member]
Long-term Commitment (Excluding Unconditional Purchase Obligation) [Abstract]
Nameplate Capacity \| MWh	150
Idaho Power Company [Member] \| Contracts To Acquire And Own Battery Storage Assets Commitment
Long-term Commitment (Excluding Unconditional Purchase Obligation) [Abstract]
BPA security deposit to begin after years of energization		10 years
Idaho Power Company [Member] \| Contracts To Purchase Battery Storage Capacity Commitment \| Subsequent Event
Long-term Commitment (Excluding Unconditional Purchase Obligation) [Abstract]
Long-term Purchase Commitment, Period	20 years
Purchase Obligation	$ 430,900
Bridger Coal Company
Guarantor Obligations
IERCo guarantee of BCC reclamation obligation		$ 141,900
Guarantor Obligations Total Reclamation Trust Fund		212,400
Distribution from Reclamation Trust Fund		$ 0

BENEFIT PLANS_ Level 4 (Details

BENEFIT PLANS: Level 4 (Details) - USD ($) $ in Thousands		1 Months Ended	3 Months Ended
BENEFIT PLANS: Level 4 (Details) - USD ($) $ in Thousands		Apr. 30, 2023	Mar. 31, 2023	Mar. 31, 2022
Defined Benefit Plan Disclosure
Service cost			$ 8,409	$ 13,730
Interest cost			14,758	11,584
Expected return on plan assets			(15,853)	(18,628)
Amortization of prior service cost			473	71
Amortization of net loss			(130)	4,594
Defined Benefit Plan, Net Periodic Benefit Cost (Credit)			7,657	11,351
Regulatory deferral of net periodic benefit cost	[1]		(5,060)	(8,373)
IPUC Authorized recovered pension cost	[1]		4,288	4,288
Net periodic benefit cost recognized for financial reporting	[1],[2]		6,885	7,266
Net Periodic Benefit cost recognize in Other operations and maintenance			5,300	4,900
Net Periodic Benefit cost recognized in other expense, net			1,600	2,400
Pension Plan
Defined Benefit Plan Disclosure
Service cost			8,078	13,164
Interest cost			12,654	10,084
Expected return on plan assets			(15,434)	(18,037)
Amortization of prior service cost			2	2
Amortization of net loss			0	3,548
Defined Benefit Plan, Net Periodic Benefit Cost (Credit)			5,300	8,761
Regulatory deferral of net periodic benefit cost	[1]		(5,060)	(8,373)
IPUC Authorized recovered pension cost	[1]		4,288	4,288
Net periodic benefit cost recognized for financial reporting	[1],[2]		4,528	4,676
Pension Plan \| Idaho Power Company [Member]
Defined Benefit Plan Disclosure
Defined Benefit Plan, Contributions by Employer			0
Defined Benefit Plan, Expected Future Employer Contributions, Remainder of Fiscal Year			30,000
Pension Plan \| Subsequent Event \| Idaho Power Company [Member]
Defined Benefit Plan Disclosure
Defined Benefit Plan, Contributions by Employer		$ 10,000
Senior Management Security Plan
Defined Benefit Plan Disclosure
Service cost			153	296
Interest cost			1,331	974
Expected return on plan assets			0	0
Amortization of prior service cost			55	70
Amortization of net loss			142	1,057
Defined Benefit Plan, Net Periodic Benefit Cost (Credit)			1,681	2,397
Net periodic benefit cost recognized for financial reporting			1,681	2,397
Postretirement Benefits Plan
Defined Benefit Plan Disclosure
Service cost			178	270
Interest cost			773	526
Expected return on plan assets			(419)	(591)
Amortization of prior service cost			416	(1)
Amortization of net loss			(272)	(11)
Defined Benefit Plan, Net Periodic Benefit Cost (Credit)			676	193
Net periodic benefit cost recognized for financial reporting			$ 676	$ 193

[1]Net periodic benefit costs for the pension plan are recognized for financial reporting based upon the authorization of each regulatory jurisdiction in which Idaho Power operates. Under IPUC order, the Idaho portion of net periodic benefit cost is recorded as a regulatory asset and is recognized in the income statement as those costs are recovered through rates.[2]Of total net periodic benefit cost recognized for financial reporting, $5.3 million and $4.9 million, respectively, were recognized in "Other operations and maintenance" and $1.6 million and $2.4 million, respectively, were recognized in "Other income, net" on the condensed consolidated statements of income of the companies for the three months ended March 31, 2023 and 2022.

Derivative Instruments Gains (L

Derivative Instruments Gains (Loss) on Derivatives Recognized in Income (Details) - USD ($) $ in Thousands		3 Months Ended
		Mar. 31, 2023	Mar. 31, 2022
Financial Swaps \| Operating revenues
Derivative Instruments, Gain (Loss)
Derivative, Gain (Loss) on Derivative, Net	[1]	$ (1,079)	$ 582
Financial Swaps \| Purchased power
Derivative Instruments, Gain (Loss)
Derivative, Gain (Loss) on Derivative, Net	[1]	1,626	116
Financial Swaps \| Operating Expense
Derivative Instruments, Gain (Loss)
Derivative, Gain (Loss) on Derivative, Net	[1]	23,537	1,460
Forward contracts \| Operating revenues
Derivative Instruments, Gain (Loss)
Derivative, Gain (Loss) on Derivative, Net	[1]	636	179
Forward contracts \| Purchased power
Derivative Instruments, Gain (Loss)
Derivative, Gain (Loss) on Derivative, Net	[1]	(600)	(179)
Forward contracts \| Operating Expense
Derivative Instruments, Gain (Loss)
Derivative, Gain (Loss) on Derivative, Net	[1]	$ (420)	$ (54)

[1]Excludes unrealized gains or losses on derivatives, which are recorded on the balance sheet as regulatory assets or regulatory liabilities.

Derivative Instruments Fair Val

Derivative Instruments Fair Value and Offsets Table (Details) - USD ($) $ in Thousands	Mar. 31, 2023		Dec. 31, 2022
Derivatives, Fair Value [Line Items]
Derivative Asset, Fair Value, Gross Asset	$ 16,406		$ 74,346
Derivative Asset, Fair Value, Gross Liability	(14,361)		(33,428)
Derivative Asset, Fair Value, Amount Offset Against Collateral	2,045		40,918
Derivative Liability, Fair Value, Gross Liability	40,130		21,589
Derivative Liability, Fair Value, Gross Asset	(32,710)		(14,801)
Derivative Liability, Fair Value, Amount Offset Against Collateral	7,420		6,788
Derivative Asset, Collateral, Obligation to Return Cash, Offset	16		18,600
Derivative Liability, Subject to Master Netting Arrangement, Collateral, Right to Reclaim Cash Offset	18,400
Financial Swaps \| Other Current Assets [Member]
Derivatives, Fair Value [Line Items]
Derivative Asset, Fair Value, Gross Asset	1,611		72,548
Derivative Asset, Fair Value, Gross Liability	(752)		(32,609)	[1]
Derivative Asset, Fair Value, Amount Offset Against Collateral	859		39,939
Derivative Liability, Fair Value, Gross Liability	752		13,982
Derivative Liability, Fair Value, Gross Asset	(752)		(13,982)
Derivative Liability, Fair Value, Amount Offset Against Collateral	0		0
Financial Swaps \| Other Current Liabilities
Derivatives, Fair Value [Line Items]
Derivative Asset, Fair Value, Gross Asset	12,571		132
Derivative Asset, Fair Value, Gross Liability	(12,571)		(132)
Derivative Asset, Fair Value, Amount Offset Against Collateral	0		0
Derivative Liability, Fair Value, Gross Liability	34,658		1,577
Derivative Liability, Fair Value, Gross Asset	(30,936)	[2]	(132)
Derivative Liability, Fair Value, Amount Offset Against Collateral	3,722		1,445
Financial Swaps \| Other Assets
Derivatives, Fair Value [Line Items]
Derivative Asset, Fair Value, Gross Asset	2,224		622
Derivative Asset, Fair Value, Gross Liability	(1,038)	[3]	(43)
Derivative Asset, Fair Value, Amount Offset Against Collateral	1,186		579
Derivative Liability, Fair Value, Gross Liability	1,022		43
Derivative Liability, Fair Value, Gross Asset	(1,022)		(43)
Derivative Liability, Fair Value, Amount Offset Against Collateral	0		0
Financial Swaps \| Other Liabilities
Derivatives, Fair Value [Line Items]
Derivative Asset, Fair Value, Gross Asset			644
Derivative Asset, Fair Value, Gross Liability			(644)
Derivative Asset, Fair Value, Amount Offset Against Collateral			0
Derivative Liability, Fair Value, Gross Liability			2,136
Derivative Liability, Fair Value, Gross Asset			(644)
Derivative Liability, Fair Value, Amount Offset Against Collateral			1,492
Forward contracts \| Other Current Assets [Member]
Derivatives, Fair Value [Line Items]
Derivative Asset, Fair Value, Gross Asset			400
Derivative Asset, Fair Value, Gross Liability			0
Derivative Asset, Fair Value, Amount Offset Against Collateral			400
Derivative Liability, Fair Value, Gross Liability			0
Derivative Liability, Fair Value, Gross Asset			0
Derivative Liability, Fair Value, Amount Offset Against Collateral			0
Forward contracts \| Other Current Liabilities
Derivatives, Fair Value [Line Items]
Derivative Asset, Fair Value, Gross Asset	0		0
Derivative Asset, Fair Value, Gross Liability	0		0
Derivative Asset, Fair Value, Amount Offset Against Collateral	0		0
Derivative Liability, Fair Value, Gross Liability	1,890		2,071
Derivative Liability, Fair Value, Gross Asset	0		0
Derivative Liability, Fair Value, Amount Offset Against Collateral	1,890		2,071
Forward contracts \| Other Liabilities
Derivatives, Fair Value [Line Items]
Derivative Asset, Fair Value, Gross Asset	0		0
Derivative Asset, Fair Value, Gross Liability	0		0
Derivative Asset, Fair Value, Amount Offset Against Collateral	0		0
Derivative Liability, Fair Value, Gross Liability	1,808		1,780
Derivative Liability, Fair Value, Gross Asset	0		0
Derivative Liability, Fair Value, Amount Offset Against Collateral	$ 1,808		$ 1,780

[1](3) Current asset derivative amounts offset include $18.6 million of collateral payable at December 31, 2022.[2](1) Current liability derivative amounts offset include $18.4 million of collateral receivable at March 31, 2023.[3](2) Long-term asset derivative amounts offset include $16 thousand of collateral payable at March 31, 2023.

Derivative Commodities and Disc

Derivative Commodities and Disclosures (Details) MWh in Thousands, MMBTU in Thousands	Mar. 31, 2023 MMBTU MWh	Mar. 31, 2022 MMBTU MWh
Electricity (MWh) \| Long
Derivative
Derivative, Number of Instruments Held \| MWh	1,066	538
Electricity (MWh) \| Short
Derivative
Derivative, Number of Instruments Held \| MWh	40	128
Natural Gas (MMBTU) \| Long
Derivative
Derivative, Number of Instruments Held \| MMBTU	31,775	16,635
Natural Gas (MMBTU) \| Short
Derivative
Derivative, Number of Instruments Held \| MMBTU	310	0

DERIVATIVE FINANCIAL INSTRUME_3

DERIVATIVE FINANCIAL INSTRUMENTS: - Narrative (Details) $ in Millions	Mar. 31, 2023 USD ($)
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Derivatives in a net liability position	$ 40.2
Collateral Already Posted, Aggregate Fair Value	62.9
Additional Collateral, Aggregate Fair Value	$ 22.9

FAIR VALUE MEASUREMENTS_ Leve_2

FAIR VALUE MEASUREMENTS: Level 4 (Details) - USD ($) $ in Thousands		Mar. 31, 2023	Dec. 31, 2022
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Money market funds	[1]	$ 6,234	$ 16,505
Derivative Assets		2,045	40,918
Equity Securities, FV-NI		33,083	34,129
Derivative Liabilities		7,420	6,788
Idaho Power Company [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Money market funds		287,963	34,468
Corporate Fixed-Income And Asset-Backed Debt Securities
Fair Value Disclosure, Asset and Liability, Not Measured at Fair Value [Line Items]
Debt Securities, Held-to-maturity, Unrealized Loss Position, Fair Value		4,200	5,000
Fair Value, Inputs, Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Money market funds	[1]	6,234	16,505
Derivative Assets		2,045	40,518
Equity Securities, FV-NI		33,083	34,129
Assets, Fair Value Disclosure	[1]	0	0
Derivative Liabilities		3,722	2,937
Fair Value, Inputs, Level 1 [Member] \| Idaho Power Company [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Money market funds		287,963	34,468
Fair Value, Inputs, Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Money market funds	[1]	0	0
Derivative Assets		0	400
Equity Securities, FV-NI		0	0
Assets, Fair Value Disclosure	[1]	0	0
Derivative Liabilities		3,698	3,851
Fair Value, Inputs, Level 2 [Member] \| Idaho Power Company [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Money market funds		0	0
Fair Value, Inputs, Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Money market funds	[1]	0	0
Derivative Assets		0	0
Equity Securities, FV-NI		0	0
Assets, Fair Value Disclosure	[1]	0	0
Derivative Liabilities		0	0
Fair Value, Inputs, Level 3 [Member] \| Idaho Power Company [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Money market funds		0	0
Fair Value Measured at Net Asset Value Per Share
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, Fair Value Disclosure	[1]	$ 2,797	$ 2,796

[1]Holding company only. Does not include amounts held by Idaho Power.

FAIR VALUE MEASUREMENTS_ Fair V

FAIR VALUE MEASUREMENTS: Fair Value, by Balance Sheet Grouping (Details) - USD ($) $ in Thousands		Mar. 31, 2023	Dec. 31, 2022
Carrying Amount
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Notes Receivable	[1]	$ 3,871	$ 3,871
Held-to-maturity securities	[1],[2]	30,702	30,475
Long-term debt	[1]	2,608,051	2,194,145
Carrying Amount \| Idaho Power Company [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Held-to-maturity securities	[1],[2]	30,702	30,475
Long-term debt	[1]	2,608,051	2,191,145
Estimated Fair Value
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Notes Receivable	[1]	3,871	3,871
Held-to-maturity securities	[1],[2]	26,511	25,452
Long-term debt	[1]	2,442,488	1,953,470
Estimated Fair Value \| Idaho Power Company [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Held-to-maturity securities	[1],[2]	26,511	25,452
Long-term debt	[1]	$ 2,442,488	$ 1,953,470

[1](1) Notes receivable are categorized as Level 3 and held-to-maturity securities and long-term debt are categorized as Level 2 of the fair value hierarchy, as defined earlier in this Note 12 - "Fair Value Measurements."[2](2) All held-to-maturity securities are carried at amortized cost and were in a gross unrealized holding loss position totaling $4.2 million and $5.0 million as of March 31, 2023, and December 31, 2022, respectively. Substantially all of these debt securities mature between 2027 and 2037. Based on ongoing credit evaluations of these holdings, Idaho Power does not expect payment defaults or delinquencies and had not recorded an allowance for credit losses for these securities as of March 31, 2023 and 2022.

SEGMENT INFORMATION_ Level 4 (D

SEGMENT INFORMATION: Level 4 (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022	Dec. 31, 2022
Segment Reporting Information
Total operating revenues	$ 429,659	$ 344,288
Net Income Attributable to IDACORP, Inc.	56,098	46,260
Total assets	7,878,892		$ 7,543,258
Eliminations
Segment Reporting Information
Total operating revenues	0	0
Net Income Attributable to IDACORP, Inc.	0	0
Total assets	(114,160)
Utility Operations \| Operating Segments
Segment Reporting Information
Total operating revenues	429,338	343,921
Net Income Attributable to IDACORP, Inc.	55,710	46,214
Total assets	7,789,605
All Other \| Operating Segments
Segment Reporting Information
Total operating revenues	321	367
Net Income Attributable to IDACORP, Inc.	388	$ 46
Total assets	$ 203,447

CHANGES IN ACCUMULATED OTHER _3

CHANGES IN ACCUMULATED OTHER COMPREHENSIVE INCOME (Details) - USD ($) $ in Thousands		3 Months Ended
		Mar. 31, 2023	Mar. 31, 2022
Increase (Decrease) in Accumulated Other Comprehensive Income [Roll Forward]
AOCI - Beginning Balance		$ (12,922)
Reclassifications		146	$ 837
AOCI - Ending Balance		(12,776)
Reclassification out of Accumulated Other Comprehensive Income
Amortization of prior service cost	[1]	55	70
Amortization of net loss	[1]	142	1,057
Total reclassification, before tax - pension and postretirement benefits		197	1,127
Tax benefit	[2]	(51)	(290)
Reclassifications		146	837
Accumulated Defined Benefit Pension Items
Increase (Decrease) in Accumulated Other Comprehensive Income [Roll Forward]
AOCI - Beginning Balance		(12,922)	(40,040)
Reclassifications		146	837
AOCI - Ending Balance		(12,776)	(39,203)
Reclassification out of Accumulated Other Comprehensive Income
Reclassifications		$ 146	$ 837

[1]Amortization of these items is included in IDACORP's condensed consolidated income statements in other operating expenses and in Idaho Power's condensed consolidated statements of income in other expense, net.[2]The tax benefit is included in income tax expense in the condensed consolidated statements of income of both IDACORP and Idaho Power.

CHANGES IN IDAHO POWER RETAIN_3

CHANGES IN IDAHO POWER RETAINED EARNINGS (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Retained Earnings Roll Forward [Roll Forward]
Balance at beginning of period	$ 1,937,972
Net Income Attributable to IDACORP, Inc.	56,098	$ 46,260
Dividends to parent	(40,502)	(38,371)
Balance at end of period	1,953,727
Idaho Power Company [Member]
Retained Earnings Roll Forward [Roll Forward]
Balance at beginning of period	1,836,547	1,696,304
Net Income Attributable to IDACORP, Inc.	55,710	46,214
Dividends	359	38,198
Dividends to parent	(552)	(38,198)
Balance at end of period	$ 1,891,898	$ 1,704,320