Nature of Operations	12 Months Ended
Aug. 31, 2023
Accounting Policies [Abstract]
Nature of Operations	Note 1 — Nature of Operations The Company operates in three reportable segments: Manufacturing; Maintenance Services; and Leasing & Management Services. The segments support the Company's integrated business model. The Manufacturing segment, which currently operates from facilities in the U.S., Mexico, Poland and Romania, produces double-stack intermodal railcars, tank cars, freight railcars, and automotive railcar products. The Maintenance Services segment performs wheel and axle servicing, railcar maintenance services and produces a variety of component parts for the rail industry in North America. The Leasing & Management Services segment owns approximately 13,400 railcars as of August 31, 2023. The Company also provides management services for railroads, shippers, carriers, institutional investors and other leasing and transportation companies in North America. Through unconsolidated affiliates the Company produces rail and industrial components and has an ownership stake in a railcar manufacturer in Brazil.

The entire disclosure for the nature of an entity's business, major products or services, principal markets including location, and the relative importance of its operations in each business and the basis for the determination, including but not limited to, assets, revenues, or earnings. For an entity that has not commenced principal operations, disclosures about the risks and uncertainties related to the activities in which the entity is currently engaged and an understanding of what those activities are being directed toward.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name Accounting Standards Codification
-Topic 275
-Publisher FASB
-URI https://asc.fasb.org//275/tableOfContent

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-Subparagraph (a)
-SubTopic 10
-Topic 275
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482861/275-10-50-1

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