Ownership Interest Percentage

No definition available.

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- Definition

Line items represent reporting 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/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Article 12
-Section 12
-Sentence Column A

+ Details

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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/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 323
-SubTopic 10
-Section 50
-Paragraph 3
-Subparagraph (a)(1)
-URI http://asc.fasb.org/extlink&oid=66011266&loc=d3e33918-111571

+ Details

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- Definition

The cash outflow associated with the acquisition of or advances to an entity that is related to it but not strictly controlled (for example, an unconsolidated subsidiary, affiliate, and joint venture or equity method investment) or the acquisition of an additional interest in a subsidiary (controlled entity).

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 13
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=98514028&loc=d3e3213-108585

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Investments in Unconsolidated Affiliates - Additional Information (Detail) - USD ($) $ in Thousands	12 Months Ended
	Aug. 31, 2017	Aug. 31, 2016	Aug. 31, 2015	May 31, 2017	Apr. 30, 2017
Investment [Line Items]
Equity method investment, percentage of ownership interest	50.00%
Payment for investment	$ 40,632	$ 12,855	$ 34,453
Amsted-Maxion Cruzeiro
Investment [Line Items]
Ownership stake in a railcar manufacturer	40.00%
GBW Railcar Services LLC
Investment [Line Items]
Equity method investment, percentage of ownership interest	50.00%		50.00%
Ohio Castings Company LLC
Investment [Line Items]
Equity method investment, percentage of ownership interest	33.00%
GGSynergy SA de C.V.
Investment [Line Items]
Equity method investment, percentage of ownership interest	50.00%
Greenbrier Railcar Funding I LLC
Investment [Line Items]
Equity method investment, percentage of ownership interest	40.00%
MUL Greenbrier LLC
Investment [Line Items]
Equity method investment, percentage of ownership interest	8.00%
Green Union One Trust
Investment [Line Items]
Equity method investment, percentage of ownership interest	1.00%
Green Union Two Trust
Investment [Line Items]
Equity method investment, percentage of ownership interest	1.00%
Green Union Three Trust
Investment [Line Items]
Equity method investment, percentage of ownership interest	1.00%
Greenbrier-Maxion
Investment [Line Items]
Equity method investment, percentage of ownership interest	60.00%			60.00%	19.50%
Payment for investment	$ 20,000
Amsted-Maxion Cruzeiro
Investment [Line Items]
Equity method investment, percentage of ownership interest	24.50%			24.50%	19.50%
Payment for investment	$ 3,500