Subsequent Events	3 Months Ended
Nov. 30, 2022
Subsequent Events [Abstract]
Subsequent Events	Note 18 – Subsequent Events In January 2023 the Company acquired The Longwood Group's minority interest in GBX Leasing, which includes a portfolio of leased railcars, manufactured primarily by the Company. Subsequent to this transaction, GBX Leasing will operate as a wholly-owned subsidiary of the Company under our Leasing & Management Services segment. The carrying value of the noncontrolling interest in GBXL was $8.3 million at November 30, 2022.

The entire disclosure for significant events or transactions that occurred after the balance sheet date through the date the financial statements were issued or the date the financial statements were available to be issued. Examples include: the sale of a capital stock issue, purchase of a business, settlement of litigation, catastrophic loss, significant foreign exchange rate changes, loans to insiders or affiliates, and transactions not in the ordinary course of business.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 855
-URI https://asc.fasb.org/topic&trid=2122774

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 855
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (a)
-URI https://asc.fasb.org/extlink&oid=6842918&loc=SL6314017-165662

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