Name:	trn_AdditionalEquityOwnershipToBeAcquiredFromEquityInvestorByCompanyIfOptionWasExercisedToItsFullestExtent
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Equipment purchased by majority owned consolidated subsidiary from the Company.

No definition available.

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Equity ownership interest in majority owned consolidated subsidiary, percentage.

No definition available.

Name:	trn_EquityOwnershipInterestInMajorityOwnedConsolidatedSubsidiaryPercentage
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- Details

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Number of third-party equity investors in majority owned consolidated subsidiary.

No definition available.

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Parent Company Guarantees of Majority Owned Subsidiary

No definition available.

Name:	trn_ParentCompanyGuaranteesOfMajorityOwnedSubsidiary
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Percentage of equity investor's net investment specified as amount payable to equity investor.

No definition available.

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Percentage of the equity investor's net investment specified as amount payable to equity investor under certain limited circumstances.

No definition available.

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Remaining equity commitment outstanding.

No definition available.

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Data Type:	xbrli:monetaryItemType
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The stated principal amount of the debt instrument at time of issuance, which may vary from the carrying amount because of unamortized premium or discount.

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 835

-SubTopic 30

-Section 45

-Paragraph 2

-URI http://asc.fasb.org/extlink&oid=6451184&loc=d3e28551-108399

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 835

-SubTopic 30

-Section 55

-Paragraph 8

-URI http://asc.fasb.org/extlink&oid=6584090&loc=d3e28878-108400

Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher AICPA

-Name Accounting Principles Board Opinion (APB)

-Number 21

-Paragraph 16, 20

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

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The aggregate total of expenses of managing and administering the affairs of an entity, including affiliates of the reporting entity, which are not directly or indirectly associated with the manufacture, sale or creation of a product or product line.

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 225

-SubTopic 10

-Section S99

-Paragraph 2

-Subparagraph (SX 210.5-03.4)

-URI http://asc.fasb.org/extlink&oid=6880815&loc=d3e20235-122688