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- Definition

Percentage Of Ownership Interests By Third Party.

+ References

No definition available.

+ Details

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Namespace Prefix:	gbx_
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- Definition

Value of railcars.

+ References

No definition available.

+ Details

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- Definition

Description of the transaction or nature of business giving rise to deferred revenue or unearned revenue, other than annual membership fees. Deferred revenue is a liability related to a revenue producing activity for which revenue has not yet been recognized. Generally, an entity records deferred revenue when it receives consideration from a customer before achieving certain criteria that must be met for revenue to be recognized in conformity with GAAP.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 605

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SAB TOPIC 13.A.4(a).Q1)

-URI http://asc.fasb.org/extlink&oid=6600647&loc=d3e214044-122780

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section 45

-Paragraph 8

-Subparagraph (b)

-URI http://asc.fasb.org/extlink&oid=6361293&loc=d3e6935-107765

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- Details

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- Definition

Carrying amount of the assets in the reporting entity's statement of financial position that relate to the reporting entity's variable interest in the Variable Interest Entity (VIE), where the reporting entity is not the VIE's primary beneficiary.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 810

-SubTopic 10

-Section 50

-Paragraph 4

-Subparagraph a

-URI http://asc.fasb.org/extlink&oid=7880789&loc=d3e5728-111685

+ Details

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Balance Type:	debit
Period Type:	instant

- Definition

Percentage of the Variable Interest Entity's (VIE) voting interest owned by (or beneficial interest in) the reporting entity (directly or indirectly).

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 810

-SubTopic 10

-Section 50

-Paragraph 5A

-Subparagraph (d)

-URI http://asc.fasb.org/extlink&oid=7880789&loc=SL6759159-111685

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Variable Interest Entities - Additional Information (Detail) (USD $) In Millions, unless otherwise specified	1 Months Ended	9 Months Ended				9 Months Ended
	Mar. 31, 2012	May 31, 2013 Vehicle	Nov. 30, 2012 Vehicle	May 31, 2012 Vehicle	Feb. 28, 2013 Transaction 02 Vehicle	May 31, 2013 May 2013 Agreement Vehicle	May 31, 2013 Intangible and Other Assets	May 31, 2013 Intangible and Other Assets May 2013 Agreement
Variable Interest Entity [Line Items]
Ownership interest in VIE	1.00%					8.00%
Third party Ownership interest	99.00%					92.00%
Number of railcars sold		1,163	200	743	220	98
Value of railcars		$ 99.6	$ 15.9	$ 61.1	$ 22.6	$ 7.9
Target rate of return		6.9
Description of deferred revenue		This $6.9 million, which is held in restricted cash, was recorded as a reduction in revenue on the sale of 1,020 new railcars and a reduction in gain on sale on the sale of the 143 used railcars with a credit to deferred revenue.
Agreement expiration time		2033-03				2033-05
Carrying amounts							$ 1.0	$ 0.6
Eliminated revenues and margins		8.00%