The Greenbrier Companies, Inc. (GBX) 10-Q29 Jun 232023 Q3 Quarterly reportFinancial data

Company Profile

Cover Page

Cover Page - shares	9 Months Ended
Cover Page - shares	May 31, 2023	Jun. 26, 2023
Cover [Abstract]
Document Type	10-Q
Amendment Flag	false
Document Period End Date	May 31, 2023
Document Fiscal Year Focus	2023
Document Fiscal Period Focus	Q3
Entity Registrant Name	THE GREENBRIER COMPANIES, INC.
Trading Symbol	GBX
Security Exchange Name	NYSE
Entity Central Index Key	0000923120
Current Fiscal Year End Date	--08-31
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Large Accelerated Filer
Title of 12(b) Security	Common Stock
Entity Common Stock, Shares Outstanding		30,883,231
Document Quarterly Report	true
Document Transition Report	false
Entity File Number	1-13146
Entity Emerging Growth Company	false
Entity Small Business	false
Entity Shell Company	false
Entity Incorporation, State or Country Code	OR
Entity Tax Identification Number	93-0816972
Entity Address, Address Line One	One Centerpointe Drive
Entity Address, Address Line Two	Suite 200
Entity Address, City or Town	Lake Oswego
Entity Address, State or Province	OR
Entity Address, Postal Zip Code	97035
City Area Code	503
Local Phone Number	684-7000

Condensed Consolidated Balance

Condensed Consolidated Balance Sheets - USD ($) $ in Millions	May 31, 2023	Aug. 31, 2022
Assets
Cash and cash equivalents	$ 321.4	$ 543
Restricted cash	20.1	16.1
Accounts receivable, net	533.6	501.2
Income tax receivable	29.8	39.8
Inventories	888	815.3
Leased railcars for syndication	119.4	111.1
Equipment on operating leases, net	941	770.9
Property, plant and equipment, net	600.4	645.2
Investment in unconsolidated affiliates	86.4	92.5
Intangibles and other assets, net	253.3	189.1
Goodwill	128.3	127.3
Total assets	3,921.7	3,851.5
Liabilities and Equity
Revolving notes	280	296.6
Accounts payable and accrued liabilities	741.6	725.1
Deferred income taxes	88.3	68.6
Deferred revenue	56.6	35.3
Notes payable, net	1,320.3	1,269.1
Commitments and contingencies (Note 15)
Contingently redeemable noncontrolling interest	54.1	27.7
Greenbrier
Preferred stock - without par value; 25,000 shares authorized; none outstanding
Common stock - without par value; 50,000 shares authorized; 31,111 and 32,603 shares outstanding at May 31, 2023 and August 31, 2022
Additional paid-in capital	374.1	424.8
Retained earnings	882.2	897.7
Accumulated other comprehensive loss	(23.6)	(45.6)
Total equity – Greenbrier	1,232.7	1,276.9
Noncontrolling interest	148.1	152.2
Total equity	1,380.8	1,429.1
Liabilities and Equity	$ 3,921.7	$ 3,851.5

Condensed Consolidated Balanc_2

Condensed Consolidated Balance Sheets (Parenthetical) - $ / shares	May 31, 2023	Aug. 31, 2022
Statement of Financial Position [Abstract]
Preferred stock, without par value
Preferred stock, shares authorized	25,000,000	25,000,000
Preferred stock, outstanding	0	0
Common stock, without par value
Common stock, shares authorized	50,000,000	50,000,000
Common stock, shares outstanding	31,111,000	32,603,000

Condensed Consolidated Statemen

Condensed Consolidated Statements of Income - USD ($) shares in Thousands, $ in Millions		3 Months Ended		9 Months Ended
		May 31, 2023	May 31, 2022	May 31, 2023	May 31, 2022
Revenue
Revenue		$ 1,038.1	$ 793.5	$ 2,926.6	$ 2,027
Cost of revenue
Cost of revenue		910	717.2	2,612.2	1,848.3
Margin		128.1	76.3	314.4	178.7
Selling and administrative expense		63.3	57.4	175.7	156.4
Net gain on disposition of equipment		(2.3)	(0.7)	(15.2)	(34.3)
Asset impairment, disposal, and exit costs		16.4		40.6
Earnings from operations		50.7	19.6	113.3	56.6
Other costs
Interest and foreign exchange		22.8	14.9	64	39.3
Earnings before income tax and earnings from unconsolidated affiliates		27.9	4.7	49.3	17.3
Income tax expense		(3.6)	(1.1)	(11.7)	(2.9)
Earnings before earnings from unconsolidated affiliates		24.3	3.6	37.6	14.4
Earnings from unconsolidated affiliates		2.4	4	8.6	10
Net earnings		26.7	7.6	46.2	24.4
Net (earnings) loss attributable to noncontrolling interest		(5.4)	(4.5)	(8.5)	2.3
Net earnings attributable to Greenbrier		$ 21.3	$ 3.1	$ 37.7	$ 26.7
Basic earnings per common share		$ 0.67	$ 0.10	$ 1.17	$ 0.82
Diluted earnings per common share	[1]	$ 0.64	$ 0.09	$ 1.13	$ 0.79
Weighted average common shares:
Basic	[2]	31,757	32,588	32,346	32,560
Diluted		33,571	33,661	33,344	33,626
Manufacturing
Revenue
Revenue		$ 870.2	$ 650.9	$ 2,485.3	$ 1,659.1
Cost of revenue
Cost of revenue		786.5	611.3	2,292.2	1,567.9
Maintenance Services
Revenue
Revenue		122.9	101.5	306.4	260.5
Cost of revenue
Cost of revenue		109.8	91.1	279	244
Leasing & Management Services
Revenue
Revenue		45	41.1	134.9	107.4
Cost of revenue
Cost of revenue		$ 13.7	$ 14.8	$ 41	$ 36.4

[1] Diluted earnings per share was calculated as follows: Earnings before interest and debt issuance costs on the 2.875 % convertible notes due 2024 Weighted average diluted common shares outstanding Restricted stock grants and restricted stock units that are considered participating securities, including some grants subject to certain performance criteria, are included in weighted average basic common shares outstanding when the Company is in a net earnings position.

Condensed Consolidated Statem_2

Condensed Consolidated Statements of Comprehensive Income - USD ($) $ in Millions		3 Months Ended		9 Months Ended
		May 31, 2023	May 31, 2022	May 31, 2023	May 31, 2022
Statement of Comprehensive Income [Abstract]
Net earnings		$ 26.7	$ 7.6	$ 46.2	$ 24.4
Other comprehensive income (loss)
Translation adjustment		6	2.2	16.9	(7.4)
Reclassification of derivative financial instruments recognized in net earnings	[1]	(2.7)	1.5	(4.8)	3.8
Unrealized gain (loss) on derivative financial instruments	[2]	(5.2)	13.1	9.8	10.7
Other (net of tax effect)				0.1	0.1
Other comprehensive income		(1.9)	16.8	22	7.2
Comprehensive income		24.8	24.4	68.2	31.6
Comprehensive (income) loss attributable to noncontrolling interest		(5.4)	(4.6)	(8.5)	2.2
Comprehensive income attributable to Greenbrier		$ 19.4	$ 19.8	$ 59.7	$ 33.8

[1] 1 Net of tax effect of $ 1.2 million and ($ 0.7 million) for the three months ended May 31, 2023 and May 31, 2022 and $ 2.2 million and ($ 1.4 million) for the nine months ended May 31, 2023 and May 31, 2022. 2 Net of tax effect of ($ 1.2 million) and ($ 4.5 million) for the three months ended May 31, 2023 and May 31, 2022 and ($ 8.0 million) and ($ 4.3 million) for the nine months ended May 31, 2023 and May 31, 2022.

Condensed Consolidated Statem_3

Condensed Consolidated Statements of Comprehensive Income (Parenthetical) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	May 31, 2023	May 31, 2022	May 31, 2023	May 31, 2022
Statement of Comprehensive Income [Abstract]
Reclassification of derivative financial instruments recognized in net earnings (loss), tax	$ 1.2	$ (0.7)	$ 2.2	$ (1.4)
Unrealized gain (loss) on derivative financial instruments, tax	$ (1.2)	$ (4.5)	$ (8)	$ (4.3)

Condensed Consolidated Statem_4

Condensed Consolidated Statements of Equity - USD ($) shares in Thousands, $ in Millions	Total	Common Stock Shares	Additional Paid-in Capital	Additional Paid-in Capital Cumulative Effect Adjustment Due to Adoption	Retained Earnings	Retained Earnings Cumulative Effect Adjustment Due to Adoption	Accumulated Other Comprehensive (Loss)	Total Equity - Greenbrier	Total Equity - Greenbrier Cumulative Effect Adjustment Due to Adoption	Noncontrolling Interest	Equity Excluding Contingently Redeemable Noncontrolling Interest	Equity Excluding Contingently Redeemable Noncontrolling Interest Cumulative Effect Adjustment Due to Adoption	Contingently Redeemable Noncontrolling Interest
Beginning balance at Aug. 31, 2021			$ 469.7	$ (58.9)	$ 881.7	$ 4.9	$ (43.7)	$ 1,307.7	$ (54)	$ 168.7	$ 1,476.4	$ (54)
Beginning balance (in shares) at Aug. 31, 2021		32,400
Beginning balance at Aug. 31, 2021													$ 29.7
Accounting Standards Update [Extensible List]			us-gaap:AccountingStandardsUpdate202006Member		us-gaap:AccountingStandardsUpdate202006Member			us-gaap:AccountingStandardsUpdate202006Member			us-gaap:AccountingStandardsUpdate202006Member
Net earnings	$ 24.4				$ 26.7			$ 26.7		(0.4)	$ 26.3		(1.9)
Other comprehensive income, net	7.2						7.1	7.1		0.1	7.2
Noncontrolling interest adjustments			$ 2.2					2.2		(1.5)	0.7
Joint venture partner distribution declared										(10.1)	(10.1)
Restricted stock awards (net of cancellations)			11.9					11.9			11.9
Restricted stock awards (net of cancellations) (in shares)		200
Unamortized restricted stock			(15.3)					(15.3)			(15.3)
Stock based compensation expense			10.9					10.9			10.9
Cash dividends					(26.8)			(26.8)			(26.8)
Ending balance at May. 31, 2022			420.5		886.5		(36.6)	1,270.4		156.8	1,427.2
Ending Balance (in shares) at May. 31, 2022		32,600
Ending Balance at May. 31, 2022													27.8
Beginning balance at Feb. 28, 2022			$ 413.4	$ (0.1)	892.5		(53.3)	$ 1,252.6	$ (0.1)	154.1	$ 1,406.7	$ (0.1)
Beginning balance (in shares) at Feb. 28, 2022		32,600
Beginning balance at Feb. 28, 2022													28.5
Accounting Standards Update [Extensible List]			us-gaap:AccountingStandardsUpdate202006Member					us-gaap:AccountingStandardsUpdate202006Member			us-gaap:AccountingStandardsUpdate202006Member
Net earnings	7.6				3.1			$ 3.1		5.2	$ 8.3		(0.7)
Other comprehensive income, net	16.8						16.7	16.7		0.1	16.8
Noncontrolling interest adjustments			$ 2.2					2.2		(0.9)	1.3
Joint venture partner distribution declared										(1.7)	(1.7)
Stock based compensation expense			5					5			5
Cash dividends					(9.1)			(9.1)			(9.1)
Ending balance at May. 31, 2022			420.5		886.5		(36.6)	1,270.4		156.8	1,427.2
Ending Balance (in shares) at May. 31, 2022		32,600
Ending Balance at May. 31, 2022													27.8
Beginning balance at Aug. 31, 2022	$ 1,429.1		424.8		897.7		(45.6)	1,276.9		152.2	1,429.1
Beginning balance (in shares) at Aug. 31, 2022	32,603	32,600
Beginning balance at Aug. 31, 2022													27.7
Net earnings	$ 46.2				37.7			37.7		8.4	46.1		0.1
Other comprehensive income, net	22						22	22			22
Noncontrolling interest adjustments			(7.9)		(26.3)			(34.2)		(1.6)	(35.8)		26.3
Joint venture partner distribution declared										(10.9)	(10.9)
Restricted stock awards (net of cancellations)			8.9					8.9			8.9
Restricted stock awards (net of cancellations) (in shares)		200
Unamortized restricted stock			(11.1)					(11.1)			(11.1)
Stock based compensation expense			8.8					8.8			8.8
Repurchase of stock	$ (49.4)		(49.4)					(49.4)			(49.4)
Repurchase of stock (in shares)	(1,700)	(1,700)
Cash dividends					(26.9)			(26.9)			(26.9)
Ending balance at May. 31, 2023	$ 1,380.8		374.1		882.2		(23.6)	1,232.7		148.1	1,380.8
Ending Balance (in shares) at May. 31, 2023	31,111	31,100
Ending Balance at May. 31, 2023													54.1
Beginning balance at Feb. 28, 2023			403		896		(21.7)	1,277.3		144.6	1,421.9
Beginning balance (in shares) at Feb. 28, 2023		32,300
Beginning balance at Feb. 28, 2023													27.5
Net earnings	$ 26.7				21.3			21.3		5.1	26.4		0.3
Other comprehensive income, net	(1.9)						(1.9)	(1.9)			(1.9)
Noncontrolling interest adjustments					(26.3)			(26.3)		0.4	(25.9)		26.3
Joint venture partner distribution declared										(2)	(2)
Restricted stock awards (net of cancellations)			(0.1)					(0.1)			(0.1)
Unamortized restricted stock			0.3					0.3			0.3
Stock based compensation expense			2.9					2.9			2.9
Repurchase of stock	$ (32)		(32)					(32)			(32)
Repurchase of stock (in shares)	(1,200)	(1,200)
Cash dividends					(8.8)			(8.8)			(8.8)
Ending balance at May. 31, 2023	$ 1,380.8		$ 374.1		$ 882.2		$ (23.6)	$ 1,232.7		$ 148.1	$ 1,380.8
Ending Balance (in shares) at May. 31, 2023	31,111	31,100
Ending Balance at May. 31, 2023													$ 54.1

Condensed Consolidated Statem_5

Condensed Consolidated Statements of Equity (Parenthetical) - $ / shares	6 Months Ended		9 Months Ended
	May 31, 2023	May 31, 2022	May 31, 2023	May 31, 2022
Equity Excluding Contingently Redeemable Noncontrolling Interest
Cash dividend per share	$ 0.27	$ 0.27	$ 0.81	$ 0.81

Condensed Consolidated Statem_6

Condensed Consolidated Statements of Cash Flows - USD ($) $ in Millions	9 Months Ended
	May 31, 2023	May 31, 2022
Cash flows from operating activities
Net earnings	$ 46.2	$ 24.4
Adjustments to reconcile net earnings to net cash used in operating activities:
Deferred income taxes	(18.4)	16.9
Depreciation and amortization	79.8	75.9
Net gain on disposition of equipment	(15.2)	(34.3)
Stock based compensation expense	8.8	10.9
Asset impairment, disposal, and exit costs	40.6
Noncontrolling interest adjustments	2.8	0.7
Other	2.8	3.4
Decrease (increase) in assets:
Accounts receivable, net	(16.1)	(160.3)
Income tax receivable	10	(17.3)
Inventories	(80.7)	(224.2)
Leased railcars for syndication	(57.3)	(77.6)
Other assets	(42.9)	(16.1)
Increase (decrease) in liabilities:
Accounts payable and accrued liabilities	8.3	77.2
Deferred revenue	32.5	(8)
Net cash provided by (used in) operating activities	1.2	(328.4)
Cash flows from investing activities
Proceeds from sales of assets	76.3	155.1
Capital expenditures	(253.9)	(248.8)
Investments in and advances to / repayments from unconsolidated affiliates	(3.5)	(4.2)
Cash distribution from unconsolidated affiliates and other	6.3	1.8
Net cash used in investing activities	(174.8)	(96.1)
Cash flows from financing activities
Net change in revolving notes with maturities of 90 days or less	(11.5)	(97.3)
Proceeds from revolving notes with maturities longer than 90 days	220	35
Repayments of revolving notes with maturities longer than 90 days	(230)
Proceeds from issuance of notes payable	75	323.3
Repayments of notes payable	(27.1)	(15)
Debt issuance costs	(0.2)	(7.2)
Repurchase of stock	(48)
Dividends	(26.7)	(26.9)
Cash distribution to joint venture partner	(8.4)	(9.4)
Tax payments for net share settlement of restricted stock	(2.3)	(3.5)
Net cash provided by (used in) financing activities	(59.2)	199
Effect of exchange rate changes	15.2	19.9
Decrease in Cash and cash equivalents and Restricted cash	(217.6)	(205.6)
Cash and cash equivalents and restricted cash
Cash and cash equivalents and restricted cash, Beginning balance	559.1	671.4
Cash and cash equivalents and restricted cash, Ending balance	341.5	465.8
Balance sheet reconciliation
Cash and cash equivalents	321.4	449.7
Restricted cash	20.1	16.1
Total cash and cash equivalents and restricted cash as presented above	341.5	465.8
Cash paid during the period for
Interest	57.1	33.3
Income taxes paid, net	13.7	11.1
Non-cash activity
Transfers between Leased railcars for syndication and Inventories and Equipment on operating leases, net	40	13
Capital expenditures accrued in Accounts payable and accrued liabilities	3.2	5.7
Change in Accounts payable and accrued liabilities associated with dividends declared	0.2	(0.1)
Change in Accounts payable and accrued liabilities associated with cash distributions to joint venture partner	2.5	$ 0.6
Repurchase of stock accrued in Accounts payable and accrued liabilities	$ 1.4

Interim Financial Statements

Interim Financial Statements	9 Months Ended
Interim Financial Statements	May 31, 2023
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Interim Financial Statements	Note 1 – Interim Financial Statements The Condensed Consolidated Financial Statements of The Greenbrier Companies, Inc. and its subsidiaries (Greenbrier or the Company) as of May 31, 2023 and for the three and nine months ended May 31, 2023 and 2022 have been prepared to reflect all adjustments (consisting of normal recurring accruals) that, in the opinion of management, are necessary for a fair presentation of the financial position, operating results and cash flows for the periods indicated. All references to years refer to the fiscal years ended August 31st unless otherwise noted. The results of operations for the three and nine months ended May 31, 2023 are not necessarily indicative of the results to be expected for the entire year ending August 31, 2023. Certain notes and other information have been condensed or omitted from the interim financial statements presented in this Quarterly Report on Form 10-Q. Therefore, these unaudited financial statements should be read in conjunction with the Consolidated Financial Statements contained in the Company’s Annual Report on Form 10-K for the year ended August 31, 2022. Management Estimates – The preparation of financial statements in conformity with accounting principles generally accepted in the U.S. (GAAP) requires judgment on the part of management to arrive at estimates and assumptions on matters that are inherently uncertain. These estimates may affect the amount of assets, liabilities, revenue and expenses reported in the financial statements and accompanying notes and disclosure of contingent assets and liabilities within the financial statements. Estimates and assumptions are periodically evaluated and may be adjusted in future periods. Actual results could differ from those estimates. Share Repurchase Program – The Board of Directors has authorized the Company to repurchase in aggregate up to $ 100.0 million of the Company’s common stock. The program may be modified, suspended, or discontinued at any time without prior notice. Under the share repurchase program, shares of common stock may be purchased from time to time on the open market or through privately negotiated transactions. The timing and amount of purchases is based upon market conditions, securities law limitations and other factors. The share repurchase program does not obligate the Company to acquire any specific number of shares in any period. The prior authorization was set to expire on January 31, 2023 . On January 5, 2023, the Board of Directors authorized the extension of the existing share repurchase program to January 31, 2025 . During the three and nine months ended May 31, 2023, the Company purchased a total of 1.2 million and 1.7 million shares for $ 32.0 million and $ 49.4 million, respectively, of which 1.6 million shares for $ 46.1 million were purchased under the current authorization of the share repurchase program. As of May 31, 2023 , the amount remaining for repurchase under the share repurchase program was $ 53.9 million. There were no shares repurchased under the share repurchase program during the nine months ended May 31, 2022 .

Revenue Recognition

Revenue Recognition	9 Months Ended
Revenue Recognition	May 31, 2023
Revenue from Contract with Customer [Abstract]
Revenue Recognition	Note 2 – Revenue Recognition Contract balances Contract assets primarily consist of work completed for railcar maintenance but not billed at the reporting date. Contract liabilities primarily consist of customer prepayments for manufacturing and other management-type services, for which the Company has not yet satisfied the related performance obligations. Contract assets in the August 31, 2022 balance also included unbilled receivables on marine vessel construction for which the respective contracts do not yet permit billing at the reporting date. The contract balances are as follows: (in millions) Balance sheet classification May 31, August 31, $ Contract assets (1) Accounts Receivable $ — $ 13.0 $ ( 13.0 ) Contract assets Inventories 7.9 6.0 $ 1.9 Contract liabilities (1) (2) Deferred revenue 54.5 30.5 $ 24.0 (1) Balance includes contract assets and liabilities associated with Gunderson Marine which was disposed of in May 2023. See Note 4 for further discussion. (2) Contract liabilities balance includes deferred revenue within the scope of Revenue from Contracts with Customers (Topic 606). For the three and nine months ended May 31, 2023 , the Company recognized $ 2.7 million and $ 12.6 million of revenue, respectively that was included in Contract liabilities as of August 31, 2022. Performance obligations As of May 31, 2023 , the Company has entered into contracts with customers for which revenue has not yet been recognized. The following table outlines estimated revenue related to performance obligations wholly or partially unsatisfied, that the Company anticipates will be recognized in future periods. (in millions) May 31, Revenue type: Manufacturing – Railcar sales $ 2,029.9 Manufacturing – Sustainable conversions $ 87.6 Management services $ 139.5 Other $ 10.0 Based on current production and delivery schedules and existing contracts, approximately $ 1.9 billion of Railcar sales are expected to be recognized in 2023 and 2024. Sustainable conversions represent orders to modernize existing railcars and are expected to be recognized through 2023. Management services includes management and maintenance services of which approximately 52 % are expected to be performed through 2027 and the remaining amount through 2037.

Inventories

Inventories	9 Months Ended
Inventories	May 31, 2023
Inventory Disclosure [Abstract]
Inventories	Note 3 – Inventories Inventories are valued at the lower of cost or net realizable value using the first-in first-out method. Work-in-process includes material, labor and overhead. Finished goods includes completed wheels, parts and railcars not on lease or in transit. The following table summarizes the Company’s inventory balance: (in millions) May 31, August 31, Manufacturing supplies and raw materials $ 710.6 $ 570.2 Work-in-process 108.4 183.3 Finished goods 85.0 75.9 Excess and obsolete adjustment ( 16.0 ) ( 14.1 ) $ 888.0 $ 815.3

Gunderson Facility

Gunderson Facility	9 Months Ended
Gunderson Facility	May 31, 2023
Property, Plant and Equipment [Abstract]
Gunderson Facility	Note 4 – Gunderson Facility On November 17, 2022, as part of the Company's strategic review of the global business capacity footprint, the Company decided to permanently cease rail production at the Gunderson Facility and to explore alternatives to exit marine barge production . Due to the change in future use of the facility, management assessed recoverability of Gunderson assets in accordance with the Company’s policy on impairment of long-lived assets. Based on an analysis of future undiscounted cash flows associated with these assets, management determined that the carrying value was not recoverable. The carrying amount of the Company’s long-lived assets at the Gunderson Facility was $ 44.0 million and the fair value was $ 19.8 million as of the impairment date. The fair value was primarily determined based on estimated market prices of the assets and represented a Level 3 valuation in the fair value hierarchy. In the first quarter of 2023, the Company concluded that an impairment charge was necessary and $ 24.2 million was recorded in the Manufacturing segment as Asset impairment, disposal and exit costs within the Condensed Consolidated Statements of Income. In May 2023, the Company sold its ownership interest in Gunderson Marine and the Portland Property (the Gunderson Facility) and recorded a $ 14.3 million loss on sale. The Company also permanently ceased rail production at the Gunderson Facility in May 2023 and incurred $ 2.1 million of severance. The $ 14.3 million loss on sale and $ 2.1 million of severance are recorded within the Manufacturing segment as Asset impairment, disposal and exit costs within the Condensed Consolidated Statements of Income for the three months ended May 31, 2023. A total of $ 40.6 million was recorded within the Manufacturing segment as Asset impairment, disposal and exit costs within the Condensed Consolidated Statements of Income for the nine months ended May 31, 2023, which includes the $ 24.2 million impairment of long-lived assets, $ 14.3 million loss on sale, and $ 2.1 million of severance.

Intangibles and Other Assets, n

Intangibles and Other Assets, net	9 Months Ended
Intangibles and Other Assets, net	May 31, 2023
Goodwill and Intangible Assets Disclosure [Abstract]
Intangibles and Other Assets, net	Note 5 – Intangibles and Other Assets, net Intangible assets that are determined to have finite lives are amortized over their useful lives. Intangible assets with indefinite useful lives are not amortized and are periodically evaluated for impairment. The following table summarizes the Company’s identifiable Intangible and other assets balance: (in millions) May 31, August 31, Intangible assets subject to amortization: Customer relationships $ 87.5 $ 87.5 Accumulated amortization ( 68.4 ) ( 66.1 ) Other intangibles 42.5 42.4 Accumulated amortization ( 20.6 ) ( 16.5 ) 41.0 47.3 Intangible assets not subject to amortization 2.4 2.4 Prepaid and other assets 47.5 32.4 Operating lease ROU assets 74.3 54.2 Nonqualified savings plan investments 43.8 40.3 Debt issuance costs, net 6.3 8.7 Assets held for sale 0.3 3.8 Deferred tax assets 37.7 — $ 253.3 $ 189.1 Amortization expense was $ 2.0 million and $ 6.0 million for the three and nine months ended May 31, 2023 , respectively and $ 1.9 million and $ 7.3 million for the three and nine months ended May 31, 2022 , respectively. Amortization expense for the years ending August 31, 2023, 2024, 2025, 2026 and 2027 is expected to be $ 8.3 million, $ 7.7 million, $ 6.5 million, $ 6.1 million and $ 5.3 million, respectively .

Goodwill

Goodwill	9 Months Ended
Goodwill	May 31, 2023
Goodwill and Intangible Assets Disclosure [Abstract]
Goodwill	Note 6 – Goodwill The Company performed its annual goodwill impairment test during the third quarter. The Company determined the fair value of the reporting units considering both the income and market approaches. Under the income approach, the Company calculates the fair value of a reporting unit based on the present value of estimated future cash flows which incorporates forecasted revenues, long-term growth rate, gross margin percentages, operating expenses, and the use of discount rates. Under the market approach, the Company estimates the fair value based on observed market multiples for comparable businesses, when appropriate. Based on the results of the annual goodwill impairment test, the fair values of the reporting units exceeded their carrying values and the Company concluded that goodwill was not impaired. As of May 31, 2023, the goodwill balance was $ 128.3 million of which $ 85.3 million related to the Manufacturing segment and $ 43.0 million related to the Maintenance Services segment. The Manufacturing segment includes the North America Manufacturing reporting unit with a goodwill balance of $ 56.3 million and the Europe Manufacturing reporting unit with a goodwill balance of $ 29.0 million. As part of the Company’s annual goodwill impairment test, the fair value of the Europe Manufacturing reporting unit indicated an increase in the maximum redemption amount of the Contingently redeemable noncontrolling interest in Greenbrier-Astra Rail. The increase in fair value is primarily attributed to the impact of industry and entity-specific indicators which positively impacted the estimated future cash flows of Greenbrier-Astra Rail. During the three and nine months ended May 31, 2023, the Company recorded a noncash $ 26.3 million redemption value adjustment to Contingently redeemable noncontrolling interest and Retained earnings to record the carrying value at the maximum redemption amount, which represented a Level 3 valuation within the fair value hierarchy.

Revolving Notes

Revolving Notes	9 Months Ended
Revolving Notes	May 31, 2023
Debt Disclosure [Abstract]
Revolving Notes	Note 7 – Revolving Notes Senior secured credit facilities aggregated to $ 1.1 billion as of May 31, 2023. The Company had an aggregate of $ 344.1 million available to draw down under committed credit facilities as of May 31, 2023 . This amount consists of $ 281.4 million available on the North American credit facility, $ 32.7 million on the European credit facilities and $ 30.0 million on the Mexican credit facilities. North America – As of May 31, 2023 , a $ 600.0 million revolving line of credit, maturing August 2026 , secured by substantially all the Company’s U.S. assets not otherwise pledged as security for term loans or the warehouse credit facility, existed to provide working capital and interim financing of equipment, principally for the Company’s U.S. and Mexican operations. Advances under this North American credit facility bear interest at SOFR plus 1.75 % plus 0.10 % as a SOFR adjustment or Prime plus 0.75 % depending on the type of borrowing. Available borrowings under the credit facility are generally based on defined levels of eligible inventory, receivables, property, plant and equipment and leased equipment, as well as total debt to consolidated capitalization and fixed charges coverage ratios. GBX Leasing – As of May 31, 2023 , a $ 350.0 million non-recourse warehouse credit facility existed to support the operations of GBX Leasing. Advances under this facility bear interest at SOFR plus 1.85 % plus 0.11 % as a SOFR adjustment. The warehouse credit facility converts to a term loan in August 2025 and matures in August 2027 . Europe – As of May 31, 2023 , lines of credit totaling $ 73.4 million secured by certain of the Company’s European assets, with variable rates that range from Warsaw Interbank Offered Rate (WIBOR) plus 1.2 % to WIBOR plus 1.6 % and Euro Interbank Offered Rate (EURIBOR) plus 1.1 % to EURIBOR plus 1.5 %, were available for working capital needs of the Company’s European manufacturing operations. The European lines of credit in clude $ 35.3 million which is guaranteed by the Company. Euro pean credit facilities are regularly renewed. Currently, these European credit facilities have maturities that range from July 2023 through September 2024 . Mexico – As of May 31, 2023 , the Company’s Mexican railcar manufacturing operations had three lines of credit totaling $ 120.0 million for working capital needs. The first line of credit pro vides up to $ 50.0 million and matures in October 2024 . Advances under this facility bear interest at LIBOR plus 4.25 %. The second line of credit provides up to $ 40.0 million, of which the Company and its joint venture partner have each guaranteed 50 %. Advances under this facility bear interest at SOFR plus 2.55 %. The Mexican railcar manufacturing joint venture will be able to draw amounts available under this facility through February 2025 . The third line of credit provides up to $ 30.0 million, of which the Company and its joint venture partner have each guaranteed 50 %. Advances under this facility bear interest at LIBOR plus 3.75 % to 4.25 %. The Mexican railcar manufacturing joint venture will be able to draw amounts available under this facility through June 2024 . Revolving notes consisted of the following balances: (in millions) May 31, August 31, North America $ 30.0 $ 160.0 GBX Leasing 119.3 — Europe 40.7 51.6 Mexico 90.0 85.0 $ 280.0 $ 296.6 Outstanding commitments under the North American credit facility included letters of credit which totaled $ 4.9 million and $ 6.9 million as of May 31, 2023 and August 31, 2022, respectively.

Accounts Payable and Accrued Li

Accounts Payable and Accrued Liabilities	9 Months Ended
Accounts Payable and Accrued Liabilities	May 31, 2023
Payables and Accruals [Abstract]
Accounts Payable and Accrued Liabilities	Note 8 – Accounts Payable and Accrued Liabilities (in millions) May 31, August 31, Trade payables $ 400.6 $ 401.5 Accrued liabilities and other 96.7 102.8 Operating lease liabilities 75.9 56.4 Accrued payroll and related liabilities 143.0 140.4 Accrued warranty 25.4 24.0 $ 741.6 $ 725.1

Warranty Accruals

Warranty Accruals	9 Months Ended
Warranty Accruals	May 31, 2023
Guarantees and Product Warranties [Abstract]
Warranty Accruals	Note 9 – Warranty Accruals Warranty costs are estimated and charged to operations to cover a defined warranty period. The estimated warranty cost is based on the history of warranty claims for each particular product type. For new product types without a warranty history, preliminary estimates are based on historical information for similar product types. The warranty accruals, included in Accounts payable and accrued liabilities on the Condensed Consolidated Balance Sheets, are reviewed periodically and updated based on warranty trends and expirations of warranty periods. Warranty accrual activity: Three Months Ended Nine Months Ended (in millions) 2023 2022 2023 2022 Balance at beginning of period $ 24.5 $ 30.1 $ 24.0 $ 27.9 Charged to cost of revenue, net 2.8 1.7 5.7 7.6 Payments ( 2.0 ) ( 3.1 ) ( 4.6 ) ( 6.4 ) Currency translation effect 0.1 ( 0.2 ) 0.3 ( 0.6 ) Balance at end of period $ 25.4 $ 28.5 $ 25.4 $ 28.5

Accumulated Other Comprehensive

Accumulated Other Comprehensive Loss	9 Months Ended
Accumulated Other Comprehensive Loss	May 31, 2023
Equity [Abstract]
Accumulated Other Comprehensive Loss	Note 10 – Accumulated Other Comprehensive Loss Accumulated other comprehensive loss, net of tax effect as appropriate, consisted of the following: (in millions) Unrealized Foreign Other Accumulated Balance, August 31, 2022 $ 13.0 $ ( 57.4 ) $ ( 1.2 ) $ ( 45.6 ) Other comprehensive gain before reclassifications 9.8 16.9 0.1 26.8 Amounts reclassified from Accumulated other ( 4.8 ) — — ( 4.8 ) Balance, May 31, 2023 $ 18.0 $ ( 40.5 ) $ ( 1.1 ) $ ( 23.6 ) The amounts reclassified out of Accumulated other comprehensive loss into the Condensed Consolidated Statements of Income, with financial statement caption, were as follows: Three Months Ended (in millions) 2023 2022 Financial Statement Caption (Gain) loss on derivative financial instruments: Foreign exchange contracts $ ( 0.5 ) $ 0.5 Revenue and Cost of revenue Interest rate swap contracts ( 3.4 ) 1.7 Interest and foreign exchange ( 3.9 ) 2.2 Total before tax 1.2 ( 0.7 ) Income tax (benefit) expense $ ( 2.7 ) $ 1.5 Net of tax Nine Months Ended (in millions) 2023 2022 Financial Statement Caption (Gain) loss on derivative financial instruments: Foreign exchange contracts $ ( 0.2 ) $ 0.9 Revenue and Cost of revenue Interest rate swap contracts ( 6.8 ) 4.3 Interest and foreign exchange ( 7.0 ) 5.2 Total before tax 2.2 ( 1.4 ) Income tax (benefit) expense $ ( 4.8 ) $ 3.8 Net of tax

Earnings (Loss) Per Share

Earnings (Loss) Per Share	9 Months Ended
Earnings (Loss) Per Share	May 31, 2023
Earnings Per Share [Abstract]
Earnings Per Share	Note 11 – Earnings Per Share The shares used in the computation of basic and diluted earnings per common share are reconciled as follows: Three Months Ended Nine Months Ended (In thousands) 2023 2022 2023 2022 Weighted average basic common shares outstanding (1) 31,757 32,588 32,346 32,560 Dilutive effect of 2.875 % convertible notes due 2024 (2) 822 — — — Dilutive effect of 2.875 % convertible notes due 2028 (3) — — — — Dilutive effect of restricted stock units (4) 992 1,073 998 1,066 Weighted average diluted common shares outstanding 33,571 33,661 33,344 33,626 (1) Restricted stock grants and restricted stock units that are considered participating securities, including some grants subject to certain performance criteria, are included in weighted average basic common shares outstanding when the Company is in a net earnings position. (2) The dilutive effect of the 2.875 % Convertible notes due 2024 was excluded for the three months ended May 31, 2022 and nine months ended May 31, 2023 and 2022 as they were considered anti-dilutive under the “if converted” method as further discussed below. (3) The dilutive effect of the 2.875 % Convertible notes due 2028 was excluded for the three and nine months ended May 31, 2023 and 2022 as the average stock price was less than the applicable conversion price and therefore was considered anti-dilutive. As these notes require cash settlement for the principal, only a premium is potentially dilutive under the "if converted" method as further discussed below. (4) Restricted stock units that are not considered participating securities and restricted stock units subject to performance criteria, for which actual levels of performance above target have been achieved, are included in weighted average diluted common shares outstanding when the Company is in a net earnings position. Basic earnings per common share (EPS) is computed by dividing Net earnings attributable to Greenbrier by weighted average basic common shares outstanding, which includes restricted stock grants and restricted stock units that are considered participating securities when the Company is in a net earnings position. For the three and nine months ended May 31, 2023 and 2022 , diluted EPS was calculated using the more dilutive of two methods. The first method includes the dilutive effect, using the treasury stock method, associated with restricted stock units that are not considered participating securities and performance based restricted stock units subject to performance criteria, for which actual levels of performance above target have been achieved. The second method supplements the first by also including the “if converted” effect of the 2.875 % Convertible notes due 2024 and shares underlying the 2.875 % Convertible notes due 2028, when there is a conversion premium. Under the “if converted” method, debt issuance and interest costs, both net of tax, associated with the convertible notes due 2024 are added back to net earnings and the share count is increased by the shares underlying the convertible notes. Three Months Ended Nine Months Ended (in millions, except shares which are reflected in thousands, and per share amounts) 2023 2022 2023 2022 Net earnings attributable to Greenbrier $ 21.3 $ 3.1 $ 37.7 $ 26.7 Weighted average basic common shares outstanding 31,757 32,588 32,346 32,560 Basic earnings per share $ 0.67 $ 0.10 $ 1.17 $ 0.82 Net earnings attributable to Greenbrier $ 21.3 $ 3.1 $ 37.7 $ 26.7 Add back: Interest and debt issuance costs on the 2.875 % 0.3 n/a n/a n/a Earnings before interest and debt issuance costs 2.875 % convertible notes due 2024 $ 21.6 n/a n/a n/a Weighted average diluted common shares outstanding 33,571 33,661 33,344 33,626 Diluted earnings per share $ 0.64 (1) $ 0.09 $ 1.13 $ 0.79 (1) Diluted earnings per share was calculated as follows: Earnings before interest and debt issuance costs on the 2.875 % convertible notes due 2024 Weighted average diluted common shares outstanding

Stock Based Compensation

Stock Based Compensation	9 Months Ended
Stock Based Compensation	May 31, 2023
Share-Based Payment Arrangement [Abstract]
Stock Based Compensation	Note 12 – Stock Based Compensation The value of stock based compensation awards is amortized as compensation expense from the date of grant through the earlier of the vesting period or in some instances the recipient’s eligible retirement date. Stock based compensation expense consists of restricted stock unit awards. Stock based compensation expense was $ 2.9 million and $ 8.8 million for the three and nine months ended May 31, 2023 , respectively and $ 5.0 million and $ 10.9 million for the three and nine months ended May 31, 2022 , respectively. Compensation expense is recorded in Selling and administrative expense and Cost of revenue on the Condensed Consolidated Statements of Income.

Derivative Instruments

Derivative Instruments	9 Months Ended
Derivative Instruments	May 31, 2023
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Derivative Instruments	Note 13 – Derivative Instruments Foreign operations give rise to market risks from changes in foreign currency exchange rates. Foreign currency forward exchange contracts with established financial institutions are utilized to hedge a portion of that risk. Interest rate swap agreements are used to reduce the impact of changes in interest rates on certain current and probable future debt. The Company’s foreign currency forward exchange contracts and interest rate swap agreements are designated as cash flow hedges, and therefore the effective portion of unrealized gains and losses is recorded in Accumulated other comprehensive income. At May 31, 2023 exchange rates, notional amounts of forward exchange contracts for the purchase of Polish Zlotys and the sale of Euros; and the purchase of Mexican Pesos and the sale of U.S. Dollars aggregated to $ 68.6 million. The fair value of the contracts is included on the Condensed Consolidated Balance Sheets as Accounts payable and accrued liabilities when in a loss position, or as Accounts receivable, net when in a gain position. As the contracts mature at various dates through August 2024, any such gain or loss remaining will be recognized in manufacturing revenue or cost of revenue along with the related transactions. In the event that the underlying transaction does not occur or does not occur in the period designated at the inception of the hedge, the amount classified in accumulated other comprehensive loss would be reclassified to the results of operations in Interest and foreign exchange at the time of occurrence. At May 31, 2023 exchange rates, approximately $ 1.9 million would be reclassified to revenue or cost of revenue in the next year. At May 31, 2023 , interest rate swap agreements maturing from September 2023 through January 2032 had notional amounts that aggregated to $ 639.0 million. The fair value of the contracts is included on the Condensed Consolidated Balance Sheets in Accounts payable and accrued liabilities when in a loss position, or in Accounts receivable, net when in a gain position. As interest expense on the underlying debt is recognized, amounts corresponding to the interest rate swap are reclassified from Accumulated other comprehensive loss and charged or credited to interest expense. At May 31, 2023 interest rates, approximately $ 14.1 million of gain would be reclassified to interest expense in the next year. Fair Values of Derivative Instruments (in millions) Asset Derivatives Liability Derivatives May 31, August 31, May 31, August 31, Balance sheet location Fair Value Fair Value Balance sheet location Fair Value Fair Value Derivatives designated Foreign forward Accounts receivable, $ 3.5 $ 0.6 Accounts payable and $ — $ 2.9 Interest rate swap Accounts receivable, 25.9 20.8 Accounts payable and — - $ 29.4 $ 21.4 $ — $ 2.9 Derivatives not Foreign forward Accounts receivable, t $ 0.4 $ — Accounts payable and $ — $ 0.1 The Effect of Derivative Instruments on the Statements of Income (in millions) Three Months Ended May 31, 2023 and 2022 Derivatives in cash flow hedging relationships Location of gain (loss) Gain (loss) recognized in income on 2023 2022 Foreign forward exchange contract Interest and foreign exchange $ 0.1 $ 0.2 Derivatives in Gain (loss) recognized Location of gain Gain (loss) reclassified Location of gain Gain (loss) recognized 2023 2022 2023 2022 2023 2022 Foreign $ 2.7 $ 1.5 Revenue $ — $ ( 0.6 ) Revenue $ 0.6 $ 0.3 Foreign 0.6 0.8 Cost of 0.5 0.1 Cost of 0.1 0.2 Interest rate ( 7.2 ) 15.2 Interest and 3.4 ( 1.7 ) Interest and — — $ ( 3.9 ) $ 17.5 $ 3.9 $ ( 2.2 ) $ 0.7 $ 0.5 The following table presents the amounts in the Condensed Consolidated Statements of Income in which the effects of the cash flow hedges are recorded and the effects of the cash flow hedge activity on these line items for the three months ended May 31, 2023 and 2022: For the Three Months Ended May 31, 2023 2022 Total Amount of gain Total Amount of gain Revenue $ 1,038.1 $ — $ 793.5 $ ( 0.6 ) Cost of revenue $ 910.0 $ 0.5 $ 717.2 $ 0.1 Interest and foreign exchange $ 22.8 $ 3.4 $ 14.9 $ ( 1.7 ) Nine Months Ended May 31, 2023 and 2022 Derivatives in cash flow hedging relationships Location of gain (loss) Gain (loss) recognized in income on 2023 2022 Foreign forward exchange contract Interest and foreign exchange $ ( 0.2 ) $ ( 0.2 ) Derivatives in Gain (loss) recognized Location of gain Gain (loss) reclassified Location of gain Gain (loss) recognized 2023 2022 2023 2022 2023 2022 Foreign $ 4.7 $ ( 3.5 ) Revenue $ ( 0.9 ) $ ( 1.0 ) Revenue $ 1.4 $ 0.8 Foreign 1.7 0.9 Cost of 1.1 0.1 Cost of 0.5 0.6 Interest rate 11.8 17.5 Interest and 6.8 ( 4.3 ) Interest and — — $ 18.2 $ 14.9 $ 7.0 $ ( 5.2 ) $ 1.9 $ 1.4 The following table presents the amounts in the Condensed Consolidated Statements of Income in which the effects of the cash flow hedges are recorded and the effects of the cash flow hedge activity on these line items for the nine months ended May 31, 2023 and 2022: For the Nine Months Ended May 31, 2023 2022 Total Amount of gain Total Amount of gain Revenue $ 2,926.6 $ ( 0.9 ) $ 2,027.0 $ ( 1.0 ) Cost of revenue $ 2,612.2 $ 1.1 $ 1,848.3 $ 0.1 Interest and foreign exchange $ 64.0 $ 6.8 $ 39.3 $ ( 4.3 )

Segment Information

Segment Information	9 Months Ended
Segment Information	May 31, 2023
Segment Reporting [Abstract]
Segment Information	Note 14 – Segment Information The Company operates in three reportable segments: Manufacturing; Maintenance Services; and Leasing & Management Services. The accounting policies of the segments are described in the summary of significant accounting policies in the Consolidated Financial Statements contained in the Company’s Annual Report on Form 10-K for the year ended August 31, 2022. Performance is evaluated based on Earnings (loss) from operations. Corporate includes selling and administrative costs not directly related to goods and services and certain costs that are intertwined among segments due to our integrated business model. The Company does not allocate Interest and foreign exchange or Income tax expense for either external or internal reporting purposes. Intersegment sales and transfers are valued as if the sales or transfers were to third parties. Related revenue and margin are eliminated in consolidation and therefore are not included in consolidated results in the Company’s Consolidated Financial Statements. The information in the following table is derived directly from the segments’ internal financial reports used for corporate management purposes. For the three months ended May 31, 2023: Revenue Earnings (loss) from operations (in millions) External Intersegment Total External Intersegment Total Manufacturing $ 870.2 $ 73.3 $ 943.5 $ 44.1 $ 7.9 $ 52.0 Maintenance Services 122.9 11.0 133.9 11.0 — 11.0 Leasing & Management Services 45.0 0.3 45.3 25.9 — 25.9 Eliminations — ( 84.6 ) ( 84.6 ) — ( 7.9 ) ( 7.9 ) Corporate — — — ( 30.3 ) — ( 30.3 ) $ 1,038.1 $ — $ 1,038.1 $ 50.7 $ — $ 50.7 For the nine months ended May 31, 2023: Revenue Earnings (loss) from operations (in millions) External Intersegment Total External Intersegment Total Manufacturing $ 2,485.3 $ 214.6 $ 2,699.9 $ 87.3 $ 20.7 $ 108.0 Maintenance Services 306.4 25.7 332.1 23.3 — 23.3 Leasing & Management Services 134.9 1.0 135.9 82.2 0.1 82.3 Eliminations — ( 241.3 ) ( 241.3 ) — ( 20.8 ) ( 20.8 ) Corporate — — — ( 79.5 ) — ( 79.5 ) $ 2,926.6 $ — $ 2,926.6 $ 113.3 $ — $ 113.3 For the three months ended May 31, 2022: Revenue Earnings (loss) from operations (in millions) External Intersegment Total External Intersegment Total Manufacturing $ 650.9 $ 38.3 $ 689.2 $ 20.5 $ 1.8 $ 22.3 Maintenance Services 101.5 8.6 110.1 8.6 — 8.6 Leasing & Management Services 41.1 0.6 41.7 19.2 0.1 19.3 Eliminations — ( 47.5 ) ( 47.5 ) — ( 1.9 ) ( 1.9 ) Corporate — — — ( 28.7 ) — ( 28.7 ) $ 793.5 $ — $ 793.5 $ 19.6 $ — $ 19.6 For the nine months ended May 31, 2022: Revenue Earnings (loss) from operations (in millions) External Intersegment Total External Intersegment Total Manufacturing $ 1,659.1 $ 79.5 $ 1,738.6 $ 34.6 $ 2.1 $ 36.7 Maintenance Services 260.5 17.4 277.9 10.4 — 10.4 Leasing & Management Services 107.4 1.3 108.7 84.0 0.1 84.1 Eliminations — ( 98.2 ) ( 98.2 ) — ( 2.2 ) ( 2.2 ) Corporate — — — ( 72.4 ) — ( 72.4 ) $ 2,027.0 $ — $ 2,027.0 $ 56.6 $ — $ 56.6 Total assets (in millions) May 31, August 31, Manufacturing $ 1,891.1 $ 1,853.9 Maintenance Services 295.1 284.8 Leasing & Management Services 1,325.6 1,152.2 Unallocated, including cash 409.9 560.6 $ 3,921.7 $ 3,851.5 Reconciliation of Earnings from operations to Earnings before income tax and earnings from unconsolidated affiliates: Three Months Ended Nine Months Ended (in millions) 2023 2022 2023 2022 Earnings from operations $ 50.7 $ 19.6 $ 113.3 $ 56.6 Interest and foreign exchange 22.8 14.9 64.0 39.3 Earnings before income tax and earnings $ 27.9 $ 4.7 $ 49.3 $ 17.3

Leases

Leases	9 Months Ended
Leases	May 31, 2023
Leases [Abstract]
Leases	Note 15 – Leases Lessor Equipment on operating leases is reported net of accumulated depreciation of $ 61.3 million and $ 48.6 million as of May 31, 2023 and August 31, 2022, respectively. Depreciation expense was $ 6.9 million and $ 19.7 million for the three and nine months ended May 31, 2023 , respectively and $ 5.5 million and $ 15.9 million for the three and nine months ended May 31, 2022 , respectively. In addition, certain railcar equipment leased-in by the Company on operating leases is subleased to customers under non-cancelable operating leases with lease terms ranging from one to approximately thirteen years . Operating lease rental revenues included in the Company’s Condensed Consolidated Statements of Income for the three and nine months ended May 31, 2023 was $ 23.1 million and $ 66.5 million, respectively, which included $ 4.0 million and $ 13.7 million, respectively, of revenue as a result of daily, monthly or car hire utilization arrangements. Operating lease rental revenues included in the Company's Condensed Consolidated Statements of Income for the three and nine months ended May 31, 2022 was $ 16.0 million and $ 47.3 million, respectively, which included $ 3.8 million and $ 12.3 million, respectively, of revenue as a result of daily, monthly or car hire utilization arrangements. Aggregate minimum future amounts receivable under all non-cancelable operating leases and subleases at May 31, 2023, will mature as follows: (in millions) Remaining three months of 2023 $ 20.1 2024 64.9 2025 58.1 2026 51.7 2027 44.4 Thereafter 94.9 $ 334.1 Lessee The Company leases railcars, real estate, and certain equipment under operating and, to a lesser extent, finance lease arrangements. As of and for the three and nine months ended May 31, 2023 and 2022, finance leases were not a material component of the Company's lease portfolio. The Company’s real estate and equipment leases have remaining lease terms ranging from less than one year to 75 years , with some including options to extend up to 15 years . The Company recognizes a lease liability and corresponding rig ht-of-use (ROU) asset based on the present value of lease payments. To determine the present value of lease payments, as most of its leases do not provide a readily determinable implicit rate, the Company’s incremental borrowing rate is used to discount the lease payments based on information available at lease commencement date. The Company gives consideration to its recent debt issuances as well as publicly available data for instruments with similar characteristics when estimating its incremental borrowing rate. The components of operating lease costs were as follows: Three Months Ended Nine Months Ended (in millions) 2023 2022 2023 2022 Operating lease expense $ 2.9 $ 2.7 $ 9.3 $ 7.9 Short-term lease expense 2.9 1.1 7.3 3.8 Total $ 5.8 $ 3.8 $ 16.6 $ 11.7 Aggregate minimum future amounts payable under operating leases having initial or remaining non-cancelable terms at May 31, 2023 will mature as follows: (in millions) Remaining three months of 2023 $ 4.2 2024 15.3 2025 12.6 2026 11.7 2027 8.9 Thereafter 31.5 Total lease payments $ 84.2 Less: Imputed interest ( 8.3 ) Total lease obligations $ 75.9 The table below presents additional information related to the Company’s leases: Weighted average remaining lease term (years): Operating leases 10.5 Weighted average discount rate: Operating leases 2.5 % Supplemental cash flow information related to leases were as follows: (in millions) Nine months ended Cash paid for amounts included in the measurement of lease liabilities: Operating cash flows from operating leases $ 9.9 ROU assets obtained in exchange for new operating lease liabilities $ 27.8

Commitments and Contingencies

Commitments and Contingencies	9 Months Ended
Commitments and Contingencies	May 31, 2023
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingencies	Note 16 – Commitments and Contingencies Portland Harbor Superfund Site The Company’s former Portland, Oregon manufacturing facility (the Portland Property) is located adjacent to the Willamette River. In December 2000, the U.S. Environmental Protection Agency (EPA) classified portions of the Willamette River bed known as the Portland Harbor, including the portion fronting the Company’s manufacturing facility, as a federal "National Priority List" or "Superfund" site due to sediment contamination (the Portland Harbor Site). The Company and more than 140 other parties have received a "General Notice" of potential liability from the EPA relating to the Portland Harbor Site. The letter advised the Company that it may be liable for the costs of investigation and remediation (which liability may be joint and several with other potentially responsible parties) as well as for natural resource damages resulting from releases of hazardous substances to the site. Ten private and public entities, including the Company (the Lower Willamette Group or LWG), signed an Administrative Order on Consent (AOC) to perform a remedial investigation/feasibility study (RI/FS) of the Portland Harbor Site under EPA oversight, and several additional entities did not sign such consent, but nevertheless contributed financially to the effort. The EPA-mandated RI/FS was produced by the LWG and cost over $ 110 million during a 17-year period. The Company bore a percentage of the total costs incurred by the LWG in connection with the investigation. The Company’s aggregate expenditure during the 17-year period was not material. Some or all of any such outlay may be recoverable from other responsible parties. The EPA issued its Record of Decision (ROD) for the Portland Harbor Site on January 6, 2017 and accordingly on October 26, 2017, the AOC was terminated. Separate from the process described above, which focused on the type of remediation to be performed at the Portland Harbor Site and the schedule for such remediation, 96 parties, including the State of Oregon and the federal government, are participating in a non-judicial, mediated allocation process to try to allocate costs associated with remediation of the Portland Harbor Site. The Company will continue to participate in the allocation process. Approximately 110 additional parties signed tolling agreements related to such allocations. On April 23, 2009, the Company and the other AOC signatories filed suit against 69 other parties due to a possible limitations period for some such claims; Arkema Inc. et al v. A & C Foundry Products, Inc. et al , U.S. District Court, District of Oregon, Case #3:09-cv-453-PK. All but 12 of these parties elected to sign tolling agreements and be dismissed without prejudice, and the case has been stayed by the court until January 14, 2025. The EPA's January 6, 2017 ROD identifies a clean-up remedy that the EPA estimates will take 13 years of active remediation, followed by 30 years of monitoring with an estimated undiscounted cost of $ 1.7 billion. The EPA typically expects its cost estimates to be accurate within a range of - 30 % to + 50 %, but this ROD states that changes in costs are likely to occur. The EPA has identified several Sediment Decision Units within the ROD cleanup area. One of the units, RM9W, includes the nearshore area of the river sediments offshore of the Portland Property as well as downstream of the facility. It also includes a portion of the Portland Property's riverbank. The ROD does not break down total remediation costs by Sediment Decision Unit. The EPA requested that potentially responsible parties enter AOCs during 2019 agreeing to conduct remedial design studies. Some parties have signed AOCs, including one party with respect to RM9W which includes the area offshore of the Portland Property. The Company has not signed an AOC in connection with remedial design, but is assisting in funding a portion of the RM9W remedial design. The ROD does not address responsibility for the costs of clean-up, nor does it allocate such costs among the potentially responsible parties. Responsibility for funding and implementing the EPA's selected cleanup remedy will be determined at an unspecified later date. Based on the investigation to date, the Company believes that it did not contribute in any material way to contaminants of concern in the river sediments or the damage of natural resources in the Portland Harbor Site and that the damage in the area of the Portland Harbor Site adjacent to the Portland Property precedes the Company’s ownership of the Portland Property. Because these environmental investigations are still underway, sufficient information is currently not available to determine the Company’s liability, if any, for the cost of any required remediation or restoration of the Portland Harbor Site or to estimate a range of potential loss. Based on the results of the pending investigations and future assessments of natural resource damages, the Company may be required to incur costs associated with additional phases of investigation or remedial action, and may be liable for damages to natural resources. On January 30, 2017 the Confederated Tribes and Bands of Yakama Nation sued 33 parties including the Company as well as the federal government and the State of Oregon for costs it incurred in assessing alleged natural resource damages to the Columbia River from contaminants deposited in Portland Harbor. Confederated Tribes and Bands of the Yakama Nation v. Air Liquide America Corp., et al., U.S. Court for the District of Oregon Case No. 3i17-CV-00164-SB. The complaint does not specify the amount of damages the plaintiff will seek. The case has been stayed until January 14, 2025. Oregon Department of Environmental Quality (DEQ) Regulation of Portland Property The Company entered into a Voluntary Cleanup Agreement with the Oregon Department of Environmental Quality (DEQ) in which the Company agreed to conduct an investigation of whether, and to what extent, past or present operations at the Portland Property may have released hazardous substances into the environment. The Company has also signed an Order on Consent with the DEQ to finalize the investigation of potential onsite sources of contamination that may have a release pathway to the Willamette River. The Company’s aggregate expenditure has not been material, however it could incur significant expenses for remediation. Some or all of any such outlay may be recoverable from other responsible parties. Sale of Portland Property The Company sold the Portland Property in May 2023, but remains potentially liable with respect to the above matters. Any of these matters could adversely affect the Company's business and Consolidated Financial Statements. However, any contamination or exacerbation of contamination that occurs after the sale of the property will be the liability of the current and future owners and operators of the Portland Property. Other Litigation, Commitments and Contingencies From time to time, the Company is involved as a defendant in litigation in the ordinary course of business, the outcomes of which cannot be predicted with certainty. While the ultimate outcome of such legal proceedings cannot be determined at this time, the Company believes that the resolution of pending litigation will not have a material adverse effect on the Company's Consolidated Financial Statements. As of May 31, 2023, the Company had outstanding letters of credit aggregating to $ 4.9 million assoc iated with performance guarantees, facility leases and workers compensation insurance.

Fair Value Measures

Fair Value Measures	9 Months Ended
Fair Value Measures	May 31, 2023
Fair Value Disclosures [Abstract]
Fair Value Measures	Note 17 – Fair Value Measures Certain assets and liabilities are reported at fair value on either a recurring or nonrecurring basis. Fair value, for this disclosure, is defined as an exit price, representing the amount that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants, under a three-tier fair value hierarchy that prioritizes the inputs used in measuring fair value as follows: Level 1 - observable inputs such as unadjusted quoted prices in active markets for identical instruments; Level 2 - inputs, other than the quoted market prices in active markets for similar instruments, which are observable, either directly or indirectly; and Level 3 - unobservable inputs for which there is little or no market data available, which require the reporting entity to develop its own assumptions. Assets and liabilities measured at fair value on a recurring basis as of May 31, 2023 were: (in millions) Total Level 1 Level 2 (1) Level 3 Assets: Derivative financial instruments $ 29.8 $ — $ 29.8 $ — Nonqualified savings plan investments 43.8 43.8 — — Cash equivalents 60.7 60.7 — — $ 134.3 $ 104.5 $ 29.8 $ — Liabilities: Derivative financial instruments $ — $ — $ — $ — Assets and liabilities measured at fair value on a recurring basis as of August 31, 2022 were: (in millions) Total Level 1 Level 2 (1) Level 3 Assets: Derivative financial instruments $ 21.4 $ — $ 21.4 $ — Nonqualified savings plan investments 40.3 40.3 — — Cash equivalents 119.4 119.4 — — $ 181.1 $ 159.7 $ 21.4 $ — Liabilities: Derivative financial instruments $ 3.0 $ — $ 3.0 $ — (1) Level 2 assets and liabilities include derivative financial instruments that are valued based on observable inputs. See Note 13 - Derivative Instruments for further discussion.

Related Party Transactions

Related Party Transactions	9 Months Ended
Related Party Transactions	May 31, 2023
Related Party Transactions [Abstract]
Related Party Transactions	Note 18 – Related Party Transactions The Company has a 41.9 % interest in Axis, LLC (Axis), a joint venture. The Company purchased $ 2.2 million and $ 6.7 million of railcar components from Axis for the three and nine months ended May 31, 2023 , respectively, and $ 3.5 million and $ 9.7 million for the three and nine months ended May 31, 2022, respectively. The Company has a 40 % interest in the common equity of an unconsolidated affiliate that buys and sells railcar assets that are leased to third parties. Upon sale of railcars to this entity from the Company, 60 % of the related revenue and margin is recognized and 40 % is deferred until the railcars are ultimately sold by the entity. The Company recognized $ 15.1 million in revenue when the remaining railcars were sold out of the leasing warehouse during the three and nine months ended May 31, 2023. The Company had no material revenue with railcars sold out of the leasing warehouse during the three and nine months ended May 31, 2022.

Subsequent Events

Subsequent Events	9 Months Ended
Subsequent Events	May 31, 2023
Subsequent Events [Abstract]
Subsequent Events	Note 19 – Subsequent Events On June 16, 2023, the Company amended its GBX Leasing warehouse credit facility agreement (Amended Loan Agreement). The Amended Loan Agreement increased the aggregate loan commitment from $ 350.0 million to $ 550.0 million. The Company intends to use proceeds from borrowings to fund additions in its owned lease fleet.

Revenue Recognition (Tables)

Revenue Recognition (Tables)	9 Months Ended
Revenue Recognition (Tables)	May 31, 2023
Revenue from Contract with Customer [Abstract]
Summary of Contract Balances	The contract balances are as follows: (in millions) Balance sheet classification May 31, August 31, $ Contract assets (1) Accounts Receivable $ — $ 13.0 $ ( 13.0 ) Contract assets Inventories 7.9 6.0 $ 1.9 Contract liabilities (1) (2) Deferred revenue 54.5 30.5 $ 24.0 (1) Balance includes contract assets and liabilities associated with Gunderson Marine which was disposed of in May 2023. See Note 4 for further discussion. (2) Contract liabilities balance includes deferred revenue within the scope of Revenue from Contracts with Customers (Topic 606).
Summary of Estimated Revenue Related to Performance Obligations Wholly or Partially Unsatisfied	The following table outlines estimated revenue related to performance obligations wholly or partially unsatisfied, that the Company anticipates will be recognized in future periods. (in millions) May 31, Revenue type: Manufacturing – Railcar sales $ 2,029.9 Manufacturing – Sustainable conversions $ 87.6 Management services $ 139.5 Other $ 10.0

Inventories (Tables)

Inventories (Tables)	9 Months Ended
Inventories (Tables)	May 31, 2023
Inventory Disclosure [Abstract]
Components of Inventories	The following table summarizes the Company’s inventory balance: (in millions) May 31, August 31, Manufacturing supplies and raw materials $ 710.6 $ 570.2 Work-in-process 108.4 183.3 Finished goods 85.0 75.9 Excess and obsolete adjustment ( 16.0 ) ( 14.1 ) $ 888.0 $ 815.3

Intangibles and Other Assets,_2

Intangibles and Other Assets, net (Tables)	9 Months Ended
Intangibles and Other Assets, net (Tables)	May 31, 2023
Goodwill and Intangible Assets Disclosure [Abstract]
Identifiable Intangible and Other Assets	The following table summarizes the Company’s identifiable Intangible and other assets balance: (in millions) May 31, August 31, Intangible assets subject to amortization: Customer relationships $ 87.5 $ 87.5 Accumulated amortization ( 68.4 ) ( 66.1 ) Other intangibles 42.5 42.4 Accumulated amortization ( 20.6 ) ( 16.5 ) 41.0 47.3 Intangible assets not subject to amortization 2.4 2.4 Prepaid and other assets 47.5 32.4 Operating lease ROU assets 74.3 54.2 Nonqualified savings plan investments 43.8 40.3 Debt issuance costs, net 6.3 8.7 Assets held for sale 0.3 3.8 Deferred tax assets 37.7 — $ 253.3 $ 189.1

Revolving Notes (Tables)

Revolving Notes (Tables)	9 Months Ended
Revolving Notes (Tables)	May 31, 2023
Debt Disclosure [Abstract]
Schedule of Credit Facility Balances	Revolving notes consisted of the following balances: (in millions) May 31, August 31, North America $ 30.0 $ 160.0 GBX Leasing 119.3 — Europe 40.7 51.6 Mexico 90.0 85.0 $ 280.0 $ 296.6

Accounts Payable and Accrued _2

Accounts Payable and Accrued Liabilities (Tables)	9 Months Ended
Accounts Payable and Accrued Liabilities (Tables)	May 31, 2023
Payables and Accruals [Abstract]
Accounts Payable and Accrued Liabilities	(in millions) May 31, August 31, Trade payables $ 400.6 $ 401.5 Accrued liabilities and other 96.7 102.8 Operating lease liabilities 75.9 56.4 Accrued payroll and related liabilities 143.0 140.4 Accrued warranty 25.4 24.0 $ 741.6 $ 725.1

Warranty Accruals (Tables)

Warranty Accruals (Tables)	9 Months Ended
Warranty Accruals (Tables)	May 31, 2023
Guarantees and Product Warranties [Abstract]
Warranty Accrual Activity	Warranty accrual activity: Three Months Ended Nine Months Ended (in millions) 2023 2022 2023 2022 Balance at beginning of period $ 24.5 $ 30.1 $ 24.0 $ 27.9 Charged to cost of revenue, net 2.8 1.7 5.7 7.6 Payments ( 2.0 ) ( 3.1 ) ( 4.6 ) ( 6.4 ) Currency translation effect 0.1 ( 0.2 ) 0.3 ( 0.6 ) Balance at end of period $ 25.4 $ 28.5 $ 25.4 $ 28.5

Accumulated Other Comprehensi_2

Accumulated Other Comprehensive Loss (Tables)	9 Months Ended
Accumulated Other Comprehensive Loss (Tables)	May 31, 2023
Equity [Abstract]
Components of Accumulated Other Comprehensive Loss, Net of Tax	Accumulated other comprehensive loss, net of tax effect as appropriate, consisted of the following: (in millions) Unrealized Foreign Other Accumulated Balance, August 31, 2022 $ 13.0 $ ( 57.4 ) $ ( 1.2 ) $ ( 45.6 ) Other comprehensive gain before reclassifications 9.8 16.9 0.1 26.8 Amounts reclassified from Accumulated other ( 4.8 ) — — ( 4.8 ) Balance, May 31, 2023 $ 18.0 $ ( 40.5 ) $ ( 1.1 ) $ ( 23.6 )
Amounts Reclassified out of Accumulated Other Comprehensive Loss	The amounts reclassified out of Accumulated other comprehensive loss into the Condensed Consolidated Statements of Income, with financial statement caption, were as follows: Three Months Ended (in millions) 2023 2022 Financial Statement Caption (Gain) loss on derivative financial instruments: Foreign exchange contracts $ ( 0.5 ) $ 0.5 Revenue and Cost of revenue Interest rate swap contracts ( 3.4 ) 1.7 Interest and foreign exchange ( 3.9 ) 2.2 Total before tax 1.2 ( 0.7 ) Income tax (benefit) expense $ ( 2.7 ) $ 1.5 Net of tax Nine Months Ended (in millions) 2023 2022 Financial Statement Caption (Gain) loss on derivative financial instruments: Foreign exchange contracts $ ( 0.2 ) $ 0.9 Revenue and Cost of revenue Interest rate swap contracts ( 6.8 ) 4.3 Interest and foreign exchange ( 7.0 ) 5.2 Total before tax 2.2 ( 1.4 ) Income tax (benefit) expense $ ( 4.8 ) $ 3.8 Net of tax

Earnings (Loss) Per Share (Tabl

Earnings (Loss) Per Share (Tables)	9 Months Ended
Earnings (Loss) Per Share (Tables)	May 31, 2023
Earnings Per Share [Abstract]
Reconciliation of Shares Used in Computation of Basic and Diluted Earnings Per Common Share	The shares used in the computation of basic and diluted earnings per common share are reconciled as follows: Three Months Ended Nine Months Ended (In thousands) 2023 2022 2023 2022 Weighted average basic common shares outstanding (1) 31,757 32,588 32,346 32,560 Dilutive effect of 2.875 % convertible notes due 2024 (2) 822 — — — Dilutive effect of 2.875 % convertible notes due 2028 (3) — — — — Dilutive effect of restricted stock units (4) 992 1,073 998 1,066 Weighted average diluted common shares outstanding 33,571 33,661 33,344 33,626 (1) Restricted stock grants and restricted stock units that are considered participating securities, including some grants subject to certain performance criteria, are included in weighted average basic common shares outstanding when the Company is in a net earnings position. (2) The dilutive effect of the 2.875 % Convertible notes due 2024 was excluded for the three months ended May 31, 2022 and nine months ended May 31, 2023 and 2022 as they were considered anti-dilutive under the “if converted” method as further discussed below. (3) The dilutive effect of the 2.875 % Convertible notes due 2028 was excluded for the three and nine months ended May 31, 2023 and 2022 as the average stock price was less than the applicable conversion price and therefore was considered anti-dilutive. As these notes require cash settlement for the principal, only a premium is potentially dilutive under the "if converted" method as further discussed below. (4) Restricted stock units that are not considered participating securities and restricted stock units subject to performance criteria, for which actual levels of performance above target have been achieved, are included in weighted average diluted common shares outstanding when the Company is in a net earnings position.
Approach to Calculate Diluted Earnings per Share	Three Months Ended Nine Months Ended (in millions, except shares which are reflected in thousands, and per share amounts) 2023 2022 2023 2022 Net earnings attributable to Greenbrier $ 21.3 $ 3.1 $ 37.7 $ 26.7 Weighted average basic common shares outstanding 31,757 32,588 32,346 32,560 Basic earnings per share $ 0.67 $ 0.10 $ 1.17 $ 0.82 Net earnings attributable to Greenbrier $ 21.3 $ 3.1 $ 37.7 $ 26.7 Add back: Interest and debt issuance costs on the 2.875 % 0.3 n/a n/a n/a Earnings before interest and debt issuance costs 2.875 % convertible notes due 2024 $ 21.6 n/a n/a n/a Weighted average diluted common shares outstanding 33,571 33,661 33,344 33,626 Diluted earnings per share $ 0.64 (1) $ 0.09 $ 1.13 $ 0.79 (1) Diluted earnings per share was calculated as follows: Earnings before interest and debt issuance costs on the 2.875 % convertible notes due 2024 Weighted average diluted common shares outstanding

Derivative Instruments (Tables)

Derivative Instruments (Tables)	9 Months Ended
Derivative Instruments (Tables)	May 31, 2023
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Fair Values of Derivative Instruments	Fair Values of Derivative Instruments (in millions) Asset Derivatives Liability Derivatives May 31, August 31, May 31, August 31, Balance sheet location Fair Value Fair Value Balance sheet location Fair Value Fair Value Derivatives designated Foreign forward Accounts receivable, $ 3.5 $ 0.6 Accounts payable and $ — $ 2.9 Interest rate swap Accounts receivable, 25.9 20.8 Accounts payable and — - $ 29.4 $ 21.4 $ — $ 2.9 Derivatives not Foreign forward Accounts receivable, t $ 0.4 $ — Accounts payable and $ — $ 0.1
Effect of Derivative Instruments on the Statements of Income	The Effect of Derivative Instruments on the Statements of Income (in millions) Three Months Ended May 31, 2023 and 2022 Derivatives in cash flow hedging relationships Location of gain (loss) Gain (loss) recognized in income on 2023 2022 Foreign forward exchange contract Interest and foreign exchange $ 0.1 $ 0.2 Derivatives in Gain (loss) recognized Location of gain Gain (loss) reclassified Location of gain Gain (loss) recognized 2023 2022 2023 2022 2023 2022 Foreign $ 2.7 $ 1.5 Revenue $ — $ ( 0.6 ) Revenue $ 0.6 $ 0.3 Foreign 0.6 0.8 Cost of 0.5 0.1 Cost of 0.1 0.2 Interest rate ( 7.2 ) 15.2 Interest and 3.4 ( 1.7 ) Interest and — — $ ( 3.9 ) $ 17.5 $ 3.9 $ ( 2.2 ) $ 0.7 $ 0.5 Nine Months Ended May 31, 2023 and 2022 Derivatives in cash flow hedging relationships Location of gain (loss) Gain (loss) recognized in income on 2023 2022 Foreign forward exchange contract Interest and foreign exchange $ ( 0.2 ) $ ( 0.2 ) Derivatives in Gain (loss) recognized Location of gain Gain (loss) reclassified Location of gain Gain (loss) recognized 2023 2022 2023 2022 2023 2022 Foreign $ 4.7 $ ( 3.5 ) Revenue $ ( 0.9 ) $ ( 1.0 ) Revenue $ 1.4 $ 0.8 Foreign 1.7 0.9 Cost of 1.1 0.1 Cost of 0.5 0.6 Interest rate 11.8 17.5 Interest and 6.8 ( 4.3 ) Interest and — — $ 18.2 $ 14.9 $ 7.0 $ ( 5.2 ) $ 1.9 $ 1.4
Effects of Cash Flow Hedges Included in Statements of Income	The following table presents the amounts in the Condensed Consolidated Statements of Income in which the effects of the cash flow hedges are recorded and the effects of the cash flow hedge activity on these line items for the three months ended May 31, 2023 and 2022: For the Three Months Ended May 31, 2023 2022 Total Amount of gain Total Amount of gain Revenue $ 1,038.1 $ — $ 793.5 $ ( 0.6 ) Cost of revenue $ 910.0 $ 0.5 $ 717.2 $ 0.1 Interest and foreign exchange $ 22.8 $ 3.4 $ 14.9 $ ( 1.7 ) The following table presents the amounts in the Condensed Consolidated Statements of Income in which the effects of the cash flow hedges are recorded and the effects of the cash flow hedge activity on these line items for the nine months ended May 31, 2023 and 2022: For the Nine Months Ended May 31, 2023 2022 Total Amount of gain Total Amount of gain Revenue $ 2,926.6 $ ( 0.9 ) $ 2,027.0 $ ( 1.0 ) Cost of revenue $ 2,612.2 $ 1.1 $ 1,848.3 $ 0.1 Interest and foreign exchange $ 64.0 $ 6.8 $ 39.3 $ ( 4.3 )

Segment Information (Tables)

Segment Information (Tables)	9 Months Ended
Segment Information (Tables)	May 31, 2023
Segment Reporting [Abstract]
Segments Internal Financial Reports	The information in the following table is derived directly from the segments’ internal financial reports used for corporate management purposes. For the three months ended May 31, 2023: Revenue Earnings (loss) from operations (in millions) External Intersegment Total External Intersegment Total Manufacturing $ 870.2 $ 73.3 $ 943.5 $ 44.1 $ 7.9 $ 52.0 Maintenance Services 122.9 11.0 133.9 11.0 — 11.0 Leasing & Management Services 45.0 0.3 45.3 25.9 — 25.9 Eliminations — ( 84.6 ) ( 84.6 ) — ( 7.9 ) ( 7.9 ) Corporate — — — ( 30.3 ) — ( 30.3 ) $ 1,038.1 $ — $ 1,038.1 $ 50.7 $ — $ 50.7 For the nine months ended May 31, 2023: Revenue Earnings (loss) from operations (in millions) External Intersegment Total External Intersegment Total Manufacturing $ 2,485.3 $ 214.6 $ 2,699.9 $ 87.3 $ 20.7 $ 108.0 Maintenance Services 306.4 25.7 332.1 23.3 — 23.3 Leasing & Management Services 134.9 1.0 135.9 82.2 0.1 82.3 Eliminations — ( 241.3 ) ( 241.3 ) — ( 20.8 ) ( 20.8 ) Corporate — — — ( 79.5 ) — ( 79.5 ) $ 2,926.6 $ — $ 2,926.6 $ 113.3 $ — $ 113.3 For the three months ended May 31, 2022: Revenue Earnings (loss) from operations (in millions) External Intersegment Total External Intersegment Total Manufacturing $ 650.9 $ 38.3 $ 689.2 $ 20.5 $ 1.8 $ 22.3 Maintenance Services 101.5 8.6 110.1 8.6 — 8.6 Leasing & Management Services 41.1 0.6 41.7 19.2 0.1 19.3 Eliminations — ( 47.5 ) ( 47.5 ) — ( 1.9 ) ( 1.9 ) Corporate — — — ( 28.7 ) — ( 28.7 ) $ 793.5 $ — $ 793.5 $ 19.6 $ — $ 19.6 For the nine months ended May 31, 2022: Revenue Earnings (loss) from operations (in millions) External Intersegment Total External Intersegment Total Manufacturing $ 1,659.1 $ 79.5 $ 1,738.6 $ 34.6 $ 2.1 $ 36.7 Maintenance Services 260.5 17.4 277.9 10.4 — 10.4 Leasing & Management Services 107.4 1.3 108.7 84.0 0.1 84.1 Eliminations — ( 98.2 ) ( 98.2 ) — ( 2.2 ) ( 2.2 ) Corporate — — — ( 72.4 ) — ( 72.4 ) $ 2,027.0 $ — $ 2,027.0 $ 56.6 $ — $ 56.6 Total assets (in millions) May 31, August 31, Manufacturing $ 1,891.1 $ 1,853.9 Maintenance Services 295.1 284.8 Leasing & Management Services 1,325.6 1,152.2 Unallocated, including cash 409.9 560.6 $ 3,921.7 $ 3,851.5
Reconciliation of Earnings from Operations to Earnings Before Income Tax and Earnings from Unconsolidated Affiliates	Reconciliation of Earnings from operations to Earnings before income tax and earnings from unconsolidated affiliates: Three Months Ended Nine Months Ended (in millions) 2023 2022 2023 2022 Earnings from operations $ 50.7 $ 19.6 $ 113.3 $ 56.6 Interest and foreign exchange 22.8 14.9 64.0 39.3 Earnings before income tax and earnings $ 27.9 $ 4.7 $ 49.3 $ 17.3

Leases (Tables)

Leases (Tables)	9 Months Ended
Leases (Tables)	May 31, 2023
Leases [Abstract]
Aggregate Minimum Future Amounts Receivable Under All Non-Cancelable Operating Leases and Subleases	Aggregate minimum future amounts receivable under all non-cancelable operating leases and subleases at May 31, 2023, will mature as follows: (in millions) Remaining three months of 2023 $ 20.1 2024 64.9 2025 58.1 2026 51.7 2027 44.4 Thereafter 94.9 $ 334.1
Components of Operating Lease Costs	The components of operating lease costs were as follows: Three Months Ended Nine Months Ended (in millions) 2023 2022 2023 2022 Operating lease expense $ 2.9 $ 2.7 $ 9.3 $ 7.9 Short-term lease expense 2.9 1.1 7.3 3.8 Total $ 5.8 $ 3.8 $ 16.6 $ 11.7
Aggregate Minimum Future Amounts Payable Under Operating Leases	Aggregate minimum future amounts payable under operating leases having initial or remaining non-cancelable terms at May 31, 2023 will mature as follows: (in millions) Remaining three months of 2023 $ 4.2 2024 15.3 2025 12.6 2026 11.7 2027 8.9 Thereafter 31.5 Total lease payments $ 84.2 Less: Imputed interest ( 8.3 ) Total lease obligations $ 75.9
Additional Information Related to Company's Leases	The table below presents additional information related to the Company’s leases: Weighted average remaining lease term (years): Operating leases 10.5 Weighted average discount rate: Operating leases 2.5 %
Supplemental Cash Flow Information Related to Leases	Supplemental cash flow information related to leases were as follows: (in millions) Nine months ended Cash paid for amounts included in the measurement of lease liabilities: Operating cash flows from operating leases $ 9.9 ROU assets obtained in exchange for new operating lease liabilities $ 27.8

Fair Value Measures (Tables)

Fair Value Measures (Tables)	9 Months Ended
Fair Value Measures (Tables)	May 31, 2023
Fair Value Disclosures [Abstract]
Assets and Liabilities Measured at Fair Value on Recurring Basis	Assets and liabilities measured at fair value on a recurring basis as of May 31, 2023 were: (in millions) Total Level 1 Level 2 (1) Level 3 Assets: Derivative financial instruments $ 29.8 $ — $ 29.8 $ — Nonqualified savings plan investments 43.8 43.8 — — Cash equivalents 60.7 60.7 — — $ 134.3 $ 104.5 $ 29.8 $ — Liabilities: Derivative financial instruments $ — $ — $ — $ — Assets and liabilities measured at fair value on a recurring basis as of August 31, 2022 were: (in millions) Total Level 1 Level 2 (1) Level 3 Assets: Derivative financial instruments $ 21.4 $ — $ 21.4 $ — Nonqualified savings plan investments 40.3 40.3 — — Cash equivalents 119.4 119.4 — — $ 181.1 $ 159.7 $ 21.4 $ — Liabilities: Derivative financial instruments $ 3.0 $ — $ 3.0 $ — (1) Level 2 assets and liabilities include derivative financial instruments that are valued based on observable inputs. See Note 13 - Derivative Instruments for further discussion.

Interim Financial Statements -

Interim Financial Statements - Additional Information (Detail) - USD ($) $ in Millions		3 Months Ended	9 Months Ended
	Jan. 05, 2023	May 31, 2023	May 31, 2023	May 31, 2022
Equity Class Of Treasury Stock [Line Items]
Stock repurchased authorized amount		$ 100	$ 100
Stock repurchase program remaining authorized repurchase amount		$ 53.9	$ 53.9
Stock repurchase program number of shares repurchased				0
Number of shares repurchased		1,200,000	1,700,000
Number of shares repurchased amount		$ 32	$ 49.4
Share repurchase program, current authorization of shares purchased			1,600,000
Share repurchase program, current authorization of shares purchased amount			$ 46.1
Share repurchase program expiration date			Jan. 31, 2023
Stock repurchase program extension date	Jan. 31, 2025

Revenue Recognition - Summary o

Revenue Recognition - Summary of Contract Balances (Detail) - USD ($) $ in Millions	9 Months Ended
	May 31, 2023		Aug. 31, 2022
Contract With Customer Asset And Liability [Line Items]
Contract liabilities	$ 54.5	[1],[2]	$ 30.5
Change in contract liabilities	24
Accounts Receivable
Contract With Customer Asset And Liability [Line Items]
Contract assets			13
Change in contract assets	(13)
Inventories
Contract With Customer Asset And Liability [Line Items]
Contract assets	7.9		$ 6
Change in contract assets	$ 1.9

[1] (1) Balance includes contract assets and liabilities associated with Gunderson Marine which was disposed of in May 2023. See Note 4 for further discussion. (2) Contract liabilities balance includes deferred revenue within the scope of Revenue from Contracts with Customers (Topic 606).

Revenue Recognition - Additiona

Revenue Recognition - Additional information (Detail) $ in Millions	3 Months Ended	9 Months Ended
	May 31, 2023 USD ($)	May 31, 2023 USD ($)
Revenue From Contract With Customers [Line Items]
Revenue recognized from contract with customers liability	$ 2.7	$ 12.6
Railcar sales
Revenue From Contract With Customers [Line Items]
Expected revenue recognized in the reminder of fiscal year	$ 1,900	$ 1,900
Management services
Revenue From Contract With Customers [Line Items]
Expected performance percentage	52%	52%

Revenue Recognition - Summary_2

Revenue Recognition - Summary of Estimated Revenue Related to Performance Obligations (Detail) $ in Millions	May 31, 2023 USD ($)
Railcar sales
Revenue Remaining Performance Obligation Expected Timing Of Satisfaction [Line Items]
Revenue type 1	$ 1,900
Management service
Revenue Remaining Performance Obligation Expected Timing Of Satisfaction [Line Items]
Revenue type 1	139.5
Other
Revenue Remaining Performance Obligation Expected Timing Of Satisfaction [Line Items]
Revenue type 1	10
Manufacturing \| Railcar sales
Revenue Remaining Performance Obligation Expected Timing Of Satisfaction [Line Items]
Revenue type 1	2,029.9
Manufacturing \| Sustainable conversions
Revenue Remaining Performance Obligation Expected Timing Of Satisfaction [Line Items]
Revenue type 1	$ 87.6

Inventories - Components of Inv

Inventories - Components of Inventories (Detail) - USD ($) $ in Millions	May 31, 2023	Aug. 31, 2022
Inventory Disclosure [Abstract]
Manufacturing supplies and raw materials	$ 710.6	$ 570.2
Work-in-process	108.4	183.3
Finished goods	85	75.9
Excess and obsolete adjustment	(16)	(14.1)
Inventories	$ 888	$ 815.3

Gunderson Facility (Details)

Gunderson Facility (Details) - USD ($) $ in Millions	1 Months Ended	3 Months Ended		9 Months Ended
Gunderson Facility (Details) - USD ($) $ in Millions	May 31, 2023	May 31, 2023	Nov. 30, 2022	May 31, 2023	Jan. 05, 2023
Impaired Long-Lived Assets Held and Used [Line Items]
Carrying value of long-lived assets					$ 44
Fair value of long-lived assets					$ 19.8
Loss on sale	$ 14.3
Severance	$ 2.1
Manufacturing
Impaired Long-Lived Assets Held and Used [Line Items]
Impairment of long-lived assets			$ 24.2	$ 24.2
Loss on sale		$ 14.3		14.3
Severance		$ 2.1		2.1
Asset impairment, disposal and exit costs				$ 40.6

Intangibles and Other Assets,_3

Intangibles and Other Assets, Net - Identifiable Intangible and Other Assets (Detail) - USD ($) $ in Millions	May 31, 2023	Aug. 31, 2022
Intangibles and Other Assets by Major Class [Line Items]
Finite-Lived Intangible Assets, Net, Total	$ 41	$ 47.3
Intangible assets not subject to amortization	2.4	2.4
Prepaid and other assets	47.5	32.4
Operating lease ROU assets	$ 74.3	$ 54.2
Operating Lease, Right-of-Use Asset, Statement of Financial Position [Extensible Enumeration]	Total Intangible and other assets, net	Total Intangible and other assets, net
Nonqualified savings plan investments	$ 43.8	$ 40.3
Debt issuance costs, net	6.3	8.7
Assets held for sale	0.3	3.8
Deferred tax assets	37.7
Total Intangible and other assets, net	253.3	189.1
Customer Relationships
Intangibles and Other Assets by Major Class [Line Items]
Finite lived intangible assets gross	87.5	87.5
Accumulated amortization	(68.4)	(66.1)
Other Intangible Assets
Intangibles and Other Assets by Major Class [Line Items]
Finite lived intangible assets gross	42.5	42.4
Accumulated amortization	$ (20.6)	$ (16.5)

Intangibles and Other Assets,_4

Intangibles and Other Assets, Net - Additional Information (Detail) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	May 31, 2023	May 31, 2022	May 31, 2023	May 31, 2022
Goodwill and Intangible Assets Disclosure [Abstract]
Amortization expense	$ 2	$ 1.9	$ 6	$ 7.3
Future amortization expense, 2023	8.3		8.3
Future amortization expense, 2024	7.7		7.7
Future amortization expense, 2025	6.5		6.5
Future amortization expense, 2026	6.1		6.1
Future amortization expense, 2027	$ 5.3		$ 5.3

Goodwill - Additional Informati

Goodwill - Additional Information (Details) - USD ($) $ in Millions	3 Months Ended	9 Months Ended
	May 31, 2023	May 31, 2023	Aug. 31, 2022
Goodwill [Line Items]
Goodwill	$ 128.3	$ 128.3	$ 127.3
Noncash redemption value of noncontrolling interest	26.3	26.3
Manufacturing
Goodwill [Line Items]
Goodwill	85.3	85.3
Maintenance Services
Goodwill [Line Items]
Goodwill	43	43
North America \| Manufacturing
Goodwill [Line Items]
Goodwill	56.3	56.3
Europe \| Manufacturing
Goodwill [Line Items]
Goodwill	$ 29	$ 29

Revolving Notes - Additional In

Revolving Notes - Additional Information (Detail)	9 Months Ended
Revolving Notes - Additional Information (Detail)	May 31, 2023 USD ($) CreditFacility	Aug. 31, 2022 USD ($)
Line of Credit Facility [Line Items]
Long-term line of credit	$ 280,000,000	$ 296,600,000
European
Line of Credit Facility [Line Items]
Line of credit facility maximum capacity	73,400,000
Long-term line of credit	$ 35,300,000
Mexican
Line of Credit Facility [Line Items]
Number of lines of credits \| CreditFacility	3
Minimum \| European
Line of Credit Facility [Line Items]
Line of credit maturity date	2023-07
Maximum \| European
Line of Credit Facility [Line Items]
Line of credit maturity date	2024-09
WIBOR \| Minimum \| European
Line of Credit Facility [Line Items]
Debt instrument, percentage points added to the reference rate	1.20%
WIBOR \| Maximum \| European
Line of Credit Facility [Line Items]
Debt instrument, percentage points added to the reference rate	1.60%
EURIBOR \| Minimum \| European
Line of Credit Facility [Line Items]
Debt instrument, percentage points added to the reference rate	1.10%
EURIBOR \| Maximum \| European
Line of Credit Facility [Line Items]
Debt instrument, percentage points added to the reference rate	1.50%
Senior Secured Credit Facilities
Line of Credit Facility [Line Items]
Line of credit facility maximum capacity	$ 1,100,000,000
Letter of credit facility outstanding amount	4,900,000	6,900,000
Senior Secured Credit Facilities \| North American
Line of Credit Facility [Line Items]
Long-term line of credit	30,000,000	160,000,000
Senior Secured Credit Facilities \| European
Line of Credit Facility [Line Items]
Long-term line of credit	40,700,000	51,600,000
Senior Secured Credit Facilities \| Mexican
Line of Credit Facility [Line Items]
Long-term line of credit	90,000,000	$ 85,000,000
Committed Credit Facilities
Line of Credit Facility [Line Items]
Aggregate amount available to draw down	344,100,000
Committed Credit Facilities \| North American
Line of Credit Facility [Line Items]
Aggregate amount available to draw down	281,400,000
Committed Credit Facilities \| European
Line of Credit Facility [Line Items]
Aggregate amount available to draw down	32,700,000
Committed Credit Facilities \| Mexican
Line of Credit Facility [Line Items]
Aggregate amount available to draw down	30,000,000
Revolving Line of Credit, 1st Component of Senior Secured Credit Facilities \| North American
Line of Credit Facility [Line Items]
Line of credit facility maximum capacity	$ 600,000,000
Line of credit maturity date	2026-08
Revolving Line of Credit, 1st Component of Senior Secured Credit Facilities \| Prime Rate \| North American
Line of Credit Facility [Line Items]
Debt instrument, percentage points added to the reference rate	0.75%
Revolving Line of Credit, 1st Component of Senior Secured Credit Facilities \| SOFR \| North American
Line of Credit Facility [Line Items]
Debt instrument, percentage points added to the reference rate	1.75%
Revolving Line of Credit, 1st Component of Senior Secured Credit Facilities \| SOFR Adjustment \| North American
Line of Credit Facility [Line Items]
Debt instrument, percentage points added to the reference rate	0.10%
GBX Leasing
Line of Credit Facility [Line Items]
Line of credit facility maximum capacity	$ 350,000,000
Line of credit maturity date	2027-08
Long-term line of credit	$ 119,300,000
GBX Leasing \| SOFR
Line of Credit Facility [Line Items]
Debt instrument, percentage points added to the reference rate	1.85%
GBX Leasing \| SOFR Adjustment
Line of Credit Facility [Line Items]
Debt instrument, percentage points added to the reference rate	0.11%
Mexican Railcar Manufacturing Operations Line of Credit, 3rd Component of Senior Secured Credit Facilities \| Mexican
Line of Credit Facility [Line Items]
Line of credit facility maximum capacity	$ 120,000,000
Mexican Railcar Manufacturing Operations Line of Credit 1, 3rd Component of Senior Secured Credit Facilities \| Mexican
Line of Credit Facility [Line Items]
Line of credit facility maximum capacity	$ 50,000,000
Line of credit facility borrowings outstanding due period	2024-10
Mexican Railcar Manufacturing Operations Line of Credit 1, 3rd Component of Senior Secured Credit Facilities \| LIBOR \| Mexican
Line of Credit Facility [Line Items]
Debt instrument, percentage points added to the reference rate	4.25%
Mexican Railcar Manufacturing Operations Line of Credit 2, 3rd Component of Senior Secured Credit Facilities \| Mexican
Line of Credit Facility [Line Items]
Line of credit facility maximum capacity	$ 40,000,000
Joint venture partner each guaranteed percentage	50%
Line of credit facility borrowings outstanding due period	2025-02
Mexican Railcar Manufacturing Operations Line of Credit 2, 3rd Component of Senior Secured Credit Facilities \| SOFR \| Mexican
Line of Credit Facility [Line Items]
Debt instrument, percentage points added to the reference rate	2.55%
Mexican Railcar Manufacturing Operations Line of Credit 3, 3rd Component of Senior Secured Credit Facilities \| Mexican
Line of Credit Facility [Line Items]
Line of credit facility maximum capacity	$ 30,000,000
Joint venture partner each guaranteed percentage	50%
Line of credit facility borrowings outstanding due period	2024-06
Mexican Railcar Manufacturing Operations Line of Credit 3, 3rd Component of Senior Secured Credit Facilities \| LIBOR \| Minimum \| Mexican
Line of Credit Facility [Line Items]
Debt instrument, percentage points added to the reference rate	3.75%
Mexican Railcar Manufacturing Operations Line of Credit 3, 3rd Component of Senior Secured Credit Facilities \| LIBOR \| Maximum \| Mexican
Line of Credit Facility [Line Items]
Debt instrument, percentage points added to the reference rate	4.25%

Revolving Notes - Schedule of C

Revolving Notes - Schedule of Credit Facility Balances (Detail) - USD ($) $ in Millions	May 31, 2023	Aug. 31, 2022
Line of Credit Facility [Line Items]
Revolving notes	$ 280	$ 296.6
Europe
Line of Credit Facility [Line Items]
Revolving notes	35.3
Revolving Notes \| North America
Line of Credit Facility [Line Items]
Revolving notes	30	160
Revolving Notes \| Europe
Line of Credit Facility [Line Items]
Revolving notes	40.7	51.6
Revolving Notes \| Mexico
Line of Credit Facility [Line Items]
Revolving notes	90	$ 85
GBX Leasing
Line of Credit Facility [Line Items]
Revolving notes	$ 119.3

Accounts Payable and Accrued _3

Accounts Payable and Accrued Liabilities - Accounts Payable and Accrued Liabilities (Detail) - USD ($) $ in Millions	May 31, 2023	Feb. 28, 2023	Aug. 31, 2022	May 31, 2022	Feb. 28, 2022	Aug. 31, 2021
Payables and Accruals [Abstract]
Trade payables	$ 400.6		$ 401.5
Accrued liabilities and other	96.7		102.8
Operating lease liabilities	$ 75.9		$ 56.4
Operating Lease, Liability, Statement of Financial Position [Extensible Enumeration]	Accounts payable and accrued liabilities		Accounts payable and accrued liabilities
Accrued payroll and related liabilities	$ 143		$ 140.4
Accrued warranty	25.4	$ 24.5	24	$ 28.5	$ 30.1	$ 27.9
Accounts payable and accrued liabilities	$ 741.6		$ 725.1

Warranty Accruals - Warranty Ac

Warranty Accruals - Warranty Accrual Activity (Detail) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	May 31, 2023	May 31, 2022	May 31, 2023	May 31, 2022
Guarantees and Product Warranties [Abstract]
Balance at beginning of period	$ 24.5	$ 30.1	$ 24	$ 27.9
Charged to cost of revenue, net	2.8	1.7	5.7	7.6
Payments	(2)	(3.1)	(4.6)	(6.4)
Currency translation effect	0.1	(0.2)	0.3	(0.6)
Balance at end of period	$ 25.4	$ 28.5	$ 25.4	$ 28.5

Accumulated Other Comprehensi_3

Accumulated Other Comprehensive Loss - Components of Accumulated Other Comprehensive Loss, Net of Tax (Detail) $ in Millions	9 Months Ended
	May 31, 2023 USD ($)
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning balance	$ 1,276.9
Ending balance	1,232.7
Unrealized Gain (Loss) on Derivative Financial Instruments
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning balance	13
Other comprehensive gain before reclassifications	9.8
Amounts reclassified from Accumulated other comprehensive loss	(4.8)
Ending balance	18
Foreign Currency Translation Adjustment
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning balance	(57.4)
Other comprehensive gain before reclassifications	16.9
Ending balance	(40.5)
Other
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning balance	(1.2)
Other comprehensive gain before reclassifications	0.1
Ending balance	(1.1)
Accumulated Other Comprehensive (Loss)
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning balance	(45.6)
Other comprehensive gain before reclassifications	26.8
Amounts reclassified from Accumulated other comprehensive loss	(4.8)
Ending balance	$ (23.6)

Accumulated Other Comprehensi_4

Accumulated Other Comprehensive Loss - Amounts Reclassified out of Accumulated Other Comprehensive Loss (Detail) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	May 31, 2023	May 31, 2022	May 31, 2023	May 31, 2022
Reclassification Adjustment out of Accumulated Other Comprehensive Income on Derivatives [Line Items]
Interest and foreign exchange	$ 22.8	$ 14.9	$ 64	$ 39.3
Total before tax	(27.9)	(4.7)	(49.3)	(17.3)
Income tax (benefit) expense	3.6	1.1	11.7	2.9
Unrealized (Gain) Loss on Derivative Financial Instruments \| Reclassification out of Accumulated Other Comprehensive loss
Reclassification Adjustment out of Accumulated Other Comprehensive Income on Derivatives [Line Items]
Total before tax	(3.9)	2.2	(7)	5.2
Income tax (benefit) expense	1.2	(0.7)	2.2	(1.4)
Net of tax	(2.7)	1.5	(4.8)	3.8
Unrealized (Gain) Loss on Derivative Financial Instruments \| Reclassification out of Accumulated Other Comprehensive loss \| Foreign Exchange Contracts
Reclassification Adjustment out of Accumulated Other Comprehensive Income on Derivatives [Line Items]
Revenue and Cost of revenue	(0.5)	0.5	(0.2)	0.9
Unrealized (Gain) Loss on Derivative Financial Instruments \| Reclassification out of Accumulated Other Comprehensive loss \| Interest rate swap contracts
Reclassification Adjustment out of Accumulated Other Comprehensive Income on Derivatives [Line Items]
Interest and foreign exchange	$ (3.4)	$ 1.7	$ (6.8)	$ 4.3

Earnings Per Share - Reconcilia

Earnings Per Share - Reconciliation of Shares Used in Computation of Basic and Diluted Earnings Per Common Share (Detail) - shares shares in Thousands		3 Months Ended		9 Months Ended
		May 31, 2023	May 31, 2022	May 31, 2023	May 31, 2022
Earnings Per Share Disclosure [Line Items]
Weighted average basic common shares outstanding	[1]	31,757	32,588	32,346	32,560
Dilutive effect of restricted stock units	[2]	992	1,073	998	1,066
Weighted average diluted common shares outstanding		33,571	33,661	33,344	33,626
2.875% Convertible senior notes, due 2024
Earnings Per Share Disclosure [Line Items]
Dilutive effect of convertible notes	[3]	822

[1] Restricted stock grants and restricted stock units that are considered participating securities, including some grants subject to certain performance criteria, are included in weighted average basic common shares outstanding when the Company is in a net earnings position. Restricted stock units that are not considered participating securities and restricted stock units subject to performance criteria, for which actual levels of performance above target have been achieved, are included in weighted average diluted common shares outstanding when the Company is in a net earnings position. The dilutive effect of the 2.875 % Convertible notes due 2024 was excluded for the three months ended May 31, 2022 and nine months ended May 31, 2023 and 2022 as they were considered anti-dilutive under the “if converted” method as further discussed below.

Earnings Per Share - Reconcil_2

Earnings Per Share - Reconciliation of Shares Used in Computation of Basic and Diluted Earnings Per Common Share (Parenthetical) (Detail)	May 31, 2023	May 31, 2022
2.875% Convertible senior notes, due 2024
Earnings Per Share Disclosure [Line Items]
Debt instrument, interest rate	2.875%	2.875%
2.875% Convertible senior notes, due 2028
Earnings Per Share Disclosure [Line Items]
Debt instrument, interest rate	2.875%	2.875%

Earnings Per Share - Additional

Earnings Per Share - Additional Information (Detail)	May 31, 2023	May 31, 2022
2.875% Convertible senior notes, due 2024
Earnings Per Share Disclosure [Line Items]
Debt instrument, interest rate	2.875%	2.875%
2.875% Convertible senior notes, due 2028
Earnings Per Share Disclosure [Line Items]
Debt instrument, interest rate	2.875%	2.875%

Earnings Per Share - Approach t

Earnings Per Share - Approach to Calculate Diluted Earnings Per Share (Detail) - USD ($) $ / shares in Units, shares in Thousands, $ in Millions		3 Months Ended		9 Months Ended
		May 31, 2023	May 31, 2022	May 31, 2023	May 31, 2022
Earnings Per Share Disclosure [Line Items]
Net earnings attributable to Greenbrier		$ 21.3	$ 3.1	$ 37.7	$ 26.7
Weighted average basic common shares outstanding	[1]	31,757	32,588	32,346	32,560
Basic earnings per share		$ 0.67	$ 0.10	$ 1.17	$ 0.82
Net earnings attributable to Greenbrier		$ 21.3	$ 3.1	$ 37.7	$ 26.7
Weighted average diluted common shares outstanding		33,571	33,661	33,344	33,626
Diluted earnings per common share	[2]	$ 0.64	$ 0.09	$ 1.13	$ 0.79
2.875% Convertible senior notes, due 2024
Earnings Per Share Disclosure [Line Items]
Interest and debt issuance costs on convertible notes, net of tax		$ 0.3
Earnings before interest and debt issuance costs on convertible notes		$ 21.6

[1] Restricted stock grants and restricted stock units that are considered participating securities, including some grants subject to certain performance criteria, are included in weighted average basic common shares outstanding when the Company is in a net earnings position. Diluted earnings per share was calculated as follows: Earnings before interest and debt issuance costs on the 2.875 % convertible notes due 2024 Weighted average diluted common shares outstanding

Earnings Per Share - Approach_2

Earnings Per Share - Approach to Calculate Diluted Earnings Per Share (Parenthetical) (Detail)	May 31, 2023	May 31, 2022
2.875% Convertible senior notes, due 2024
Earnings Per Share Disclosure [Line Items]
Debt instrument, interest rate	2.875%	2.875%

Stock Based Compensation - Addi

Stock Based Compensation - Additional Information (Detail) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	May 31, 2023	May 31, 2022	May 31, 2023	May 31, 2022
Share-Based Payment Arrangement [Abstract]
Stock based compensation expense	$ 2.9	$ 5	$ 8.8	$ 10.9

Derivative Instruments - Additi

Derivative Instruments - Additional Information (Detail) $ in Millions	9 Months Ended
	May 31, 2023 USD ($)
Foreign Exchange Contracts
Derivative [Line Items]
Aggregate derivative notional amount	$ 68.6
Amount reclassified to revenue or cost of revenue in the next year	1.9
Interest rate swap contracts
Derivative [Line Items]
Unrealized pre-tax gain (loss) that would be reclassified to interest expense in the next year	14.1
Interest rate swap contracts \| Derivatives maturing from September 2023 through January 2032
Derivative [Line Items]
Aggregate derivative notional amount	$ 639
Interest rate swap contracts \| Derivatives maturing from September 2023 through January 2032 \| Minimum
Derivative [Line Items]
Maturity date	2023-09
Interest rate swap contracts \| Derivatives maturing from September 2023 through January 2032 \| Maximum
Derivative [Line Items]
Maturity date	2032-01

Derivative Instruments - Fair V

Derivative Instruments - Fair Values of Derivative Instruments (Detail) - USD ($) $ in Millions	May 31, 2023	Aug. 31, 2022
Designated as Hedging Instrument
Derivatives Fair Value [Line Items]
Asset Derivatives	$ 29.4	$ 21.4
Derivative Asset, Statement of Financial Position [Extensible Enumeration]	Accounts Receivable, after Allowance for Credit Loss	Accounts Receivable, after Allowance for Credit Loss
Liability Derivatives	$ 0	$ 2.9
Derivative Liability, Statement of Financial Position [Extensible Enumeration]	Accounts Payable and Accrued Liabilities	Accounts Payable and Accrued Liabilities
Designated as Hedging Instrument \| Foreign Exchange Contracts
Derivatives Fair Value [Line Items]
Asset Derivatives	$ 3.5	$ 0.6
Derivative Asset, Statement of Financial Position [Extensible Enumeration]	Accounts Receivable, after Allowance for Credit Loss	Accounts Receivable, after Allowance for Credit Loss
Liability Derivatives	$ 0	$ 2.9
Derivative Liability, Statement of Financial Position [Extensible Enumeration]	Accounts Payable and Accrued Liabilities	Accounts Payable and Accrued Liabilities
Designated as Hedging Instrument \| Interest rate swap contracts
Derivatives Fair Value [Line Items]
Asset Derivatives	$ 25.9	$ 20.8
Derivative Asset, Statement of Financial Position [Extensible Enumeration]	Accounts Receivable, after Allowance for Credit Loss	Accounts Receivable, after Allowance for Credit Loss
Not Designated as Hedging Instrument \| Foreign Exchange Contracts
Derivatives Fair Value [Line Items]
Asset Derivatives	$ 0.4
Derivative Asset, Statement of Financial Position [Extensible Enumeration]	Accounts Receivable, after Allowance for Credit Loss
Liability Derivatives		$ 0.1
Derivative Liability, Statement of Financial Position [Extensible Enumeration]		Accounts Payable and Accrued Liabilities

Derivative Instruments - Effect

Derivative Instruments - Effect of Derivative Instruments on Statements of Income (Detail) - Cash Flow Hedging - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	May 31, 2023	May 31, 2022	May 31, 2023	May 31, 2022
Derivative Instruments, Gain (Loss) [Line Items]
Gain (loss) recognized in OCI on derivatives	$ (3.9)	$ 17.5	$ 18.2	$ 14.9
Gain (loss) reclassified from accumulated OCI into income	3.9	(2.2)	7	(5.2)
Gain (loss) recognized on derivative (amount excluded from effectiveness testing)	0.7	0.5	1.9	1.4
Foreign Exchange Forward
Derivative Instruments, Gain (Loss) [Line Items]
Gain (loss) recognized in income on derivatives	$ 0.1	$ 0.2	(0.2)	$ (0.2)
Derivative, Gain (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration]	Interest And Foreign Exchange Net	Interest And Foreign Exchange Net		Interest And Foreign Exchange Net
Foreign Exchange Forward \| Sales
Derivative Instruments, Gain (Loss) [Line Items]
Gain (loss) recognized in OCI on derivatives	$ 2.7	$ 1.5	4.7	$ (3.5)
Gain (loss) reclassified from accumulated OCI into income	0	(0.6)	(0.9)	(1)
Gain (loss) recognized on derivative (amount excluded from effectiveness testing)	$ 0.6	$ 0.3	$ 1.4	$ 0.8
Derivative Instrument, Gain (Loss) Reclassified from AOCI into Income, Effective Portion, Statement of Income or Comprehensive Income [Extensible Enumeration]	Revenue from Contract with Customer, Excluding Assessed Tax	Revenue from Contract with Customer, Excluding Assessed Tax	Revenue from Contract with Customer, Excluding Assessed Tax	Revenue from Contract with Customer, Excluding Assessed Tax
Foreign Exchange Forward \| Cost Of Revenue
Derivative Instruments, Gain (Loss) [Line Items]
Gain (loss) recognized in OCI on derivatives	$ 0.6	$ 0.8	$ 1.7	$ 0.9
Gain (loss) reclassified from accumulated OCI into income	0.5	0.1	1.1	0.1
Gain (loss) recognized on derivative (amount excluded from effectiveness testing)	$ 0.1	$ 0.2	$ 0.5	$ 0.6
Derivative Instrument, Gain (Loss) Reclassified from AOCI into Income, Effective Portion, Statement of Income or Comprehensive Income [Extensible Enumeration]	Cost of Revenue	Cost of Revenue	Cost of Revenue	Cost of Revenue
Interest rate swap contracts
Derivative Instruments, Gain (Loss) [Line Items]
Gain (loss) recognized in OCI on derivatives	$ (7.2)	$ 15.2	$ 11.8	$ 17.5
Gain (loss) reclassified from accumulated OCI into income	$ 3.4	$ (1.7)	$ 6.8	$ (4.3)
Derivative Instrument, Gain (Loss) Reclassified from AOCI into Income, Effective Portion, Statement of Income or Comprehensive Income [Extensible Enumeration]	Interest And Foreign Exchange Net	Interest And Foreign Exchange Net	Interest And Foreign Exchange Net	Interest And Foreign Exchange Net

Derivative Instruments - Effe_2

Derivative Instruments - Effects of Cash Flow Hedges Included in Statements of Income (Detail) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	May 31, 2023	May 31, 2022	May 31, 2023	May 31, 2022
Derivative [Line Items]
Revenue	$ 1,038.1	$ 793.5	$ 2,926.6	$ 2,027
Cost of revenue	910	717.2	2,612.2	1,848.3
Interest and foreign exchange	22.8	14.9	64	39.3
Sales
Derivative [Line Items]
Amount of gain (loss) on cash flow hedge activity		(0.6)	(0.9)	(1)
Cost of Sales
Derivative [Line Items]
Amount of gain (loss) on cash flow hedge activity	0.5	0.1	1.1	0.1
Interest and Foreign Exchange
Derivative [Line Items]
Amount of gain (loss) on cash flow hedge activity	$ 3.4	$ 1.7	$ 6.8	$ (4.3)

Segment Information - Additiona

Segment Information - Additional Information (Detail)	9 Months Ended
Segment Information - Additional Information (Detail)	May 31, 2023 Segment
Segment Reporting [Abstract]
Number of reportable segments	3

Segment Information - Segments

Segment Information - Segments Internal Financial Reports (Detail) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	May 31, 2023	May 31, 2022	May 31, 2023	May 31, 2022	Aug. 31, 2022
Segment Reporting Information [Line Items]
Revenue	$ 1,038.1	$ 793.5	$ 2,926.6	$ 2,027
Earnings (loss) from operations	50.7	19.6	113.3	56.6
Assets	3,921.7		3,921.7		$ 3,851.5
Manufacturing
Segment Reporting Information [Line Items]
Revenue	870.2	650.9	2,485.3	1,659.1
Maintenance Services
Segment Reporting Information [Line Items]
Revenue	122.9	101.5	306.4	260.5
Leasing & Management Services
Segment Reporting Information [Line Items]
Revenue	45	41.1	134.9	107.4
Corporate, Non-Segment
Segment Reporting Information [Line Items]
Earnings (loss) from operations	(30.3)	(28.7)	(79.5)	(72.4)
Intersegment Eliminations
Segment Reporting Information [Line Items]
Revenue	(84.6)	(47.5)	(241.3)	(98.2)
Earnings (loss) from operations	(7.9)	(1.9)	(20.8)	(2.2)
Intersegment Eliminations \| Manufacturing
Segment Reporting Information [Line Items]
Revenue	73.3	38.3	214.6	79.5
Earnings (loss) from operations	7.9	1.8	20.7	2.1
Intersegment Eliminations \| Maintenance Services
Segment Reporting Information [Line Items]
Revenue	11	8.6	25.7	17.4
Intersegment Eliminations \| Leasing & Management Services
Segment Reporting Information [Line Items]
Revenue	0.3	0.6	1	1.3
Earnings (loss) from operations		0.1	0.1	0.1
Operating Segments
Segment Reporting Information [Line Items]
Earnings (loss) from operations				56.6
Operating Segments \| Manufacturing
Segment Reporting Information [Line Items]
Revenue	943.5	689.2	2,699.9	1,738.6
Earnings (loss) from operations	52	22.3	108	36.7
Assets	1,891.1		1,891.1		1,853.9
Operating Segments \| Maintenance Services
Segment Reporting Information [Line Items]
Revenue	133.9	110.1	332.1	277.9
Earnings (loss) from operations	11	8.6	23.3	10.4
Assets	295.1		295.1		284.8
Operating Segments \| Leasing & Management Services
Segment Reporting Information [Line Items]
Revenue	45.3	41.7	135.9	108.7
Earnings (loss) from operations	25.9	19.3	82.3	84.1
Assets	1,325.6		1,325.6		1,152.2
Operating Segments \| Unallocated, including cash
Segment Reporting Information [Line Items]
Assets	409.9		409.9		$ 560.6
Reconciling Items \| Manufacturing
Segment Reporting Information [Line Items]
Earnings (loss) from operations	44.1	20.5	87.3	34.6
Reconciling Items \| Maintenance Services
Segment Reporting Information [Line Items]
Earnings (loss) from operations	11	8.6	23.3	10.4
Reconciling Items \| Leasing & Management Services
Segment Reporting Information [Line Items]
Earnings (loss) from operations	$ 25.9	$ 19.2	$ 82.2	$ 84

Segment Information - Reconcili

Segment Information - Reconciliation of Earnings from Operations to Earnings Before Income Tax and Earnings from Unconsolidated Affiliates (Detail) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	May 31, 2023	May 31, 2022	May 31, 2023	May 31, 2022
Segment Reporting [Abstract]
Earnings from operations	$ 50.7	$ 19.6	$ 113.3	$ 56.6
Interest and foreign exchange	22.8	14.9	64	39.3
Earnings before income tax and earnings from unconsolidated affiliates	$ 27.9	$ 4.7	$ 49.3	$ 17.3

Leases - Additional Information

Leases - Additional Information (Detail) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	May 31, 2023	May 31, 2022	May 31, 2023	May 31, 2022	Aug. 31, 2022
Lessor and Lessee, Lease, Description [Line Items]
Finance lease option to extend			options to extend up to 15 years
Car Hire Utilization Arrangements
Lessor and Lessee, Lease, Description [Line Items]
Operating lease rental revenues	$ 4	$ 3.8	$ 13.7	$ 12.3
Leasing & Management Services
Lessor and Lessee, Lease, Description [Line Items]
Operating lease rental revenues	$ 23.1	$ 16	$ 66.5	$ 47.3
Operating Lease, Lease Income, Statement of Income or Comprehensive Income [Extensible Enumeration]	Revenue from Contract with Customer, Excluding Assessed Tax	Revenue from Contract with Customer, Excluding Assessed Tax	Revenue from Contract with Customer, Excluding Assessed Tax	Revenue from Contract with Customer, Excluding Assessed Tax
Minimum
Lessor and Lessee, Lease, Description [Line Items]
Sublease period			1 year
Financing lease remaining lease term			1 year
Maximum
Lessor and Lessee, Lease, Description [Line Items]
Sublease period			13 years
Financing lease remaining lease term			75 years
Equipment on Operating Lease
Lessor and Lessee, Lease, Description [Line Items]
Accumulated depreciation	$ 61.3		$ 61.3		$ 48.6
Depreciation expense	$ 6.9	$ 5.5	$ 19.7	$ 15.9

Leases - Aggregate Minimum Futu

Leases - Aggregate Minimum Future Amounts Receivable Under All Non-Cancelable Operating Leases and Subleases (Detail) $ in Millions	May 31, 2023 USD ($)
Leases [Abstract]
Remaining three months of 2023	$ 20.1
2024	64.9
2025	58.1
2026	51.7
2027	44.4
Thereafter	94.9
Operating Leases, Future Minimum Payments Receivable, Total	$ 334.1

Leases - Components of Operatin

Leases - Components of Operating Lease Costs (Detail) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	May 31, 2023	May 31, 2022	May 31, 2023	May 31, 2022
Leases [Abstract]
Operating lease expense	$ 2.9	$ 2.7	$ 9.3	$ 7.9
Short-term lease expense	2.9	1.1	7.3	3.8
Total	$ 5.8	$ 3.8	$ 16.6	$ 11.7

Leases - Aggregate Minimum Fu_2

Leases - Aggregate Minimum Future Amounts Payable Under Operating Leases (Detail) - USD ($) $ in Millions	May 31, 2023	Aug. 31, 2022
Leases [Abstract]
Remaining three months of 2023	$ 4.2
2024	15.3
2025	12.6
2026	11.7
2027	8.9
Thereafter	31.5
Total lease payments	84.2
Less: Imputed interest	(8.3)
Operating Lease, Liability	$ 75.9	$ 56.4
Operating Lease, Liability, Statement of Financial Position [Extensible List]	Accounts payable and accrued liabilities	Accounts payable and accrued liabilities

Leases - Additional Informati_2

Leases - Additional Information Related to Company's Leases (Detail)	May 31, 2023
Leases [Abstract]
Weighted average remaining lease term (years)	10 years 6 months
Weighted average discount rate	2.50%

Leases - Supplemental Cash Flow

Leases - Supplemental Cash Flow Information Related to Leases (Detail) $ in Millions	9 Months Ended
	May 31, 2023 USD ($)
Cash Flow, Operating Activities, Lessee [Abstract]
Operating cash flows from operating leases	$ 9.9
ROU assets obtained in exchange for new operating lease liabilities	$ 27.8

Commitments and Contingencies -

Commitments and Contingencies - Additional Information (Detail) - USD ($)		204 Months Ended
	Jan. 06, 2017	Dec. 31, 2016	May 31, 2023
Commitments and Contingencies Disclosure [Line Items]
Remedial investigation and feasibility study		$ 110,000,000
Performance Guarantee
Commitments and Contingencies Disclosure [Line Items]
Letter of credit facility outstanding amount			$ 4,900,000
Portland Harbor Superfund Site
Commitments and Contingencies Disclosure [Line Items]
Estimated undiscounted cost	$ 1,700,000,000
Period for remedial action	13 years
Period for monitoring	30 years
Portland Harbor Superfund Site \| Minimum
Commitments and Contingencies Disclosure [Line Items]
Accuracy of cost estimate	(30.00%)
Portland Harbor Superfund Site \| Maximum
Commitments and Contingencies Disclosure [Line Items]
Accuracy of cost estimate	50%

Fair Value Measures - Assets an

Fair Value Measures - Assets and Liabilities Measured at Fair Value on Recurring Basis (Detail) - USD ($) $ in Millions		May 31, 2023	Aug. 31, 2022
Assets:
Nonqualified savings plan investments		$ 43.8	$ 40.3
Fair Value, Measurements, Recurring
Assets:
Derivative financial instruments		29.8	21.4
Nonqualified savings plan investments		43.8	40.3
Cash equivalents		60.7	119.4
Assets, Fair Value Disclosure, Total		134.3	181.1
Liabilities:
Derivative financial instruments			3
Fair Value, Inputs, Level 1 \| Fair Value, Measurements, Recurring
Assets:
Nonqualified savings plan investments		43.8	40.3
Cash equivalents		60.7	119.4
Assets, Fair Value Disclosure, Total		104.5	159.7
Fair Value, Inputs, Level 2 \| Fair Value, Measurements, Recurring
Assets:
Derivative financial instruments	[1]	29.8	21.4
Assets, Fair Value Disclosure, Total	[1]	$ 29.8	21.4
Liabilities:
Derivative financial instruments	[1]		$ 3

[1] Level 2 assets and liabilities include derivative financial instruments that are valued based on observable inputs. See Note 13 - Derivative Instruments for further discussion.

Related Party Transactions - Ad

Related Party Transactions - Additional Information (Detail) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	May 31, 2023	May 31, 2022	May 31, 2023	May 31, 2022
Related Party Transaction [Line Items]
Percentage of recognized revenue and margin from sale			60%
Percentage of deferred revenue and margin from sale			40%
Leasing Warehouse
Related Party Transaction [Line Items]
Revenue recognize from railcars sold	$ 15.1		$ 15.1
Axis LLC
Related Party Transaction [Line Items]
Percentage of ownership in entity	41.90%		41.90%
Axis LLC \| Railcar Components
Related Party Transaction [Line Items]
Purchases of goods from related party	$ 2.2	$ 3.5	$ 6.7	$ 9.7
Greenbrier
Related Party Transaction [Line Items]
Percentage of ownership in entity	40%		40%

Subsequent Events - Additional

Subsequent Events - Additional Information (Detail) - GBX Leasing Warehouse Facility - USD ($)	Jun. 16, 2023	May 31, 2023
Subsequent Event [Line Items]
Line of credit facility maximum capacity		$ 350,000,000
Subsequent Events
Subsequent Event [Line Items]
Line of credit facility maximum capacity	$ 550,000,000