Percentage of deferred revenue and margin from sale.

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- Definition

Percentage of recognized revenue and margin from sale.

+ References

No definition available.

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- Definition

Revenue recognized with railcars sold out of leasing warehouse.

+ References

No definition available.

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- Definition

The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 323
-SubTopic 10
-Name Accounting Standards Codification
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- Definition

The distributions of earnings to an entity that is affiliated with the reporting entity by means of direct or indirect ownership.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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-Topic 230
-SubTopic 10
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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 946
-SubTopic 220
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
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-Name Accounting Standards Codification
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-SubTopic 220
-Name Accounting Standards Codification
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-Publisher FASB
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- Definition

Purchases during the period (excluding transactions that are eliminated in consolidated or combined financial statements) with related party.

+ References

No definition available.

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Related Party Transactions - Additional Information (Detail) - USD ($) $ in Millions	12 Months Ended
	Aug. 31, 2023	Aug. 31, 2022	Aug. 31, 2021
Related Party Transaction [Line Items]
Percentage of recognized revenue and margin from sale	60.00%
Percentage of deferred revenue and margin from sale	40.00%
Dividends paid to joint venture partner	$ 13.0	$ 16.9	$ 25.3
Axis LLC
Related Party Transaction [Line Items]
Percentage of ownership in entity	41.90%
Greenbrier
Related Party Transaction [Line Items]
Percentage of ownership in entity	40.00%
Amsted-Maxion Cruzeiro
Related Party Transaction [Line Items]
Percentage of ownership in entity	29.50%
Greenbrier-Maxion
Related Party Transaction [Line Items]
Percentage of ownership in entity	60.00%
Leasing Warehouse
Related Party Transaction [Line Items]
Revenue recognized with railcars sold out of leasing warehouse	$ 15.1	9.3
Railcar Components \| Axis LLC
Related Party Transaction [Line Items]
Purchases of goods from related party	$ 8.7	$ 11.5	$ 13.5