XML 105 R60.htm IDEA: XBRL DOCUMENT v2.4.1.9
Railcar Leasing and Management Services Group (Details Textual) (USD $)
In Millions, unless otherwise specified
 3 Months Ended 1 Months Ended 16 Months Ended
Mar. 31, 2015
Mar. 31, 2014
Feb. 28, 2015
Mar. 31, 2015
Dec. 31, 2014
Railcar Leasing and Management Services Group (Textual) [Abstract]          
Revenue $ 1,626.7us-gaap_SalesRevenueNet $ 1,460.5us-gaap_SalesRevenueNet      
Proceeds from railcar lease fleet sales owned more than one year at the time of sale 78.5trn_ProceedsFromSalesOfRailcarsOwnedMoreThanOneYearAtTimeOfSale 224.3trn_ProceedsFromSalesOfRailcarsOwnedMoreThanOneYearAtTimeOfSale      
Assets purchased from the Trust 283.4trn_PaymentsToAcquireLeasingAssetsNetOfSoldRailcarsOwnedOneYearOrLess (0.4)trn_PaymentsToAcquireLeasingAssetsNetOfSoldRailcarsOwnedOneYearOrLess      
Assets 8,722.4us-gaap_Assets [1]     8,722.4us-gaap_Assets [1] 8,733.8us-gaap_Assets
Rail Group          
Railcar Leasing and Management Services Group (Textual) [Abstract]          
Revenue 875.4us-gaap_SalesRevenueNet
/ us-gaap_StatementBusinessSegmentsAxis
= trn_RailGroupMember		 601.1us-gaap_SalesRevenueNet
/ us-gaap_StatementBusinessSegmentsAxis
= trn_RailGroupMember		      
Railcar Leasing and Management Services Group          
Railcar Leasing and Management Services Group (Textual) [Abstract]          
Revenue 244.2us-gaap_SalesRevenueNet
/ us-gaap_StatementBusinessSegmentsAxis
= trn_RailcarLeasingAndManagementServicesGroupMember		 442.2us-gaap_SalesRevenueNet
/ us-gaap_StatementBusinessSegmentsAxis
= trn_RailcarLeasingAndManagementServicesGroupMember		      
Operating lease obligations guaranteed by Trinity Industries, Inc. and certain subsidiaries 16.5trn_OperatingLeaseObligationsGuaranteed
/ us-gaap_StatementBusinessSegmentsAxis
= trn_RailcarLeasingAndManagementServicesGroupMember		     16.5trn_OperatingLeaseObligationsGuaranteed
/ us-gaap_StatementBusinessSegmentsAxis
= trn_RailcarLeasingAndManagementServicesGroupMember		  
Railcar Leasing and Management Services Group | Wholly-owned subsidiaries          
Railcar Leasing and Management Services Group (Textual) [Abstract]          
Net book value of equipment pledged as collateral for leasing group debt 1,781.5trn_NetBookValueofEquipmentPledgedasCollateral
/ dei_LegalEntityAxis
= trn_WhollyOwnedSubsidiariesMember
/ us-gaap_StatementBusinessSegmentsAxis
= trn_RailcarLeasingAndManagementServicesGroupMember		     1,781.5trn_NetBookValueofEquipmentPledgedasCollateral
/ dei_LegalEntityAxis
= trn_WhollyOwnedSubsidiariesMember
/ us-gaap_StatementBusinessSegmentsAxis
= trn_RailcarLeasingAndManagementServicesGroupMember		  
Net book value of equipment securing capital lease obligations 45.2trn_NetBookValueOfEquipmentSecuringCapitalLeaseObligations
/ dei_LegalEntityAxis
= trn_WhollyOwnedSubsidiariesMember
/ us-gaap_StatementBusinessSegmentsAxis
= trn_RailcarLeasingAndManagementServicesGroupMember		     45.2trn_NetBookValueOfEquipmentSecuringCapitalLeaseObligations
/ dei_LegalEntityAxis
= trn_WhollyOwnedSubsidiariesMember
/ us-gaap_StatementBusinessSegmentsAxis
= trn_RailcarLeasingAndManagementServicesGroupMember		  
Net book value of unpledged equipment 983.2trn_NetBookValueofUnpledgedEquipment
/ dei_LegalEntityAxis
= trn_WhollyOwnedSubsidiariesMember
/ us-gaap_StatementBusinessSegmentsAxis
= trn_RailcarLeasingAndManagementServicesGroupMember		     983.2trn_NetBookValueofUnpledgedEquipment
/ dei_LegalEntityAxis
= trn_WhollyOwnedSubsidiariesMember
/ us-gaap_StatementBusinessSegmentsAxis
= trn_RailcarLeasingAndManagementServicesGroupMember		  
Railcar Leasing and Management Services Group | TRIP Holdings          
Railcar Leasing and Management Services Group (Textual) [Abstract]          
Net book value of equipment pledged as collateral for leasing group debt 1,387.4trn_NetBookValueofEquipmentPledgedasCollateral
/ dei_LegalEntityAxis
= trn_TripHoldingsMember
/ us-gaap_StatementBusinessSegmentsAxis
= trn_RailcarLeasingAndManagementServicesGroupMember		     1,387.4trn_NetBookValueofEquipmentPledgedasCollateral
/ dei_LegalEntityAxis
= trn_TripHoldingsMember
/ us-gaap_StatementBusinessSegmentsAxis
= trn_RailcarLeasingAndManagementServicesGroupMember		  
Railcar Leasing and Management Services Group | TRL 2012          
Railcar Leasing and Management Services Group (Textual) [Abstract]          
Net book value of equipment pledged as collateral for leasing group debt 596.0trn_NetBookValueofEquipmentPledgedasCollateral
/ dei_LegalEntityAxis
= trn_TrinityRailLeasing2012Member
/ us-gaap_StatementBusinessSegmentsAxis
= trn_RailcarLeasingAndManagementServicesGroupMember		     596.0trn_NetBookValueofEquipmentPledgedasCollateral
/ dei_LegalEntityAxis
= trn_TrinityRailLeasing2012Member
/ us-gaap_StatementBusinessSegmentsAxis
= trn_RailcarLeasingAndManagementServicesGroupMember		  
Railcar Leasing and Management Services Group | Wholly-owned qualified subsidiaries for leasing railcars from the Trusts          
Railcar Leasing and Management Services Group (Textual) [Abstract]          
Period of railcars leased from the Trusts under operating leases (in years) 22 years        
Assets purchased from the Trust     121.1trn_PaymentsToAcquireLeasingAssetsNetOfSoldRailcarsOwnedOneYearOrLess
/ dei_LegalEntityAxis
= trn_WhollyOwnedQualifiedSubsidiariesforLeasingRailcarsfromTrustsMemberMember
/ us-gaap_StatementBusinessSegmentsAxis
= trn_RailcarLeasingAndManagementServicesGroupMember		    
Remaining future operating lease obligations terminated     105.8trn_OperatingLeaseFutureMinimumLeasePaymentsTerminated
/ dei_LegalEntityAxis
= trn_WhollyOwnedQualifiedSubsidiariesforLeasingRailcarsfromTrustsMemberMember
/ us-gaap_StatementBusinessSegmentsAxis
= trn_RailcarLeasingAndManagementServicesGroupMember		    
Assets 146.3us-gaap_Assets
/ dei_LegalEntityAxis
= trn_WhollyOwnedQualifiedSubsidiariesforLeasingRailcarsfromTrustsMemberMember
/ us-gaap_StatementBusinessSegmentsAxis
= trn_RailcarLeasingAndManagementServicesGroupMember		     146.3us-gaap_Assets
/ dei_LegalEntityAxis
= trn_WhollyOwnedQualifiedSubsidiariesforLeasingRailcarsfromTrustsMemberMember
/ us-gaap_StatementBusinessSegmentsAxis
= trn_RailcarLeasingAndManagementServicesGroupMember		  
Cash 51.0us-gaap_Cash
/ dei_LegalEntityAxis
= trn_WhollyOwnedQualifiedSubsidiariesforLeasingRailcarsfromTrustsMemberMember
/ us-gaap_StatementBusinessSegmentsAxis
= trn_RailcarLeasingAndManagementServicesGroupMember		     51.0us-gaap_Cash
/ dei_LegalEntityAxis
= trn_WhollyOwnedQualifiedSubsidiariesforLeasingRailcarsfromTrustsMemberMember
/ us-gaap_StatementBusinessSegmentsAxis
= trn_RailcarLeasingAndManagementServicesGroupMember		  
Railcars 67.8trn_Railcars
/ dei_LegalEntityAxis
= trn_WhollyOwnedQualifiedSubsidiariesforLeasingRailcarsfromTrustsMemberMember
/ us-gaap_StatementBusinessSegmentsAxis
= trn_RailcarLeasingAndManagementServicesGroupMember		     67.8trn_Railcars
/ dei_LegalEntityAxis
= trn_WhollyOwnedQualifiedSubsidiariesforLeasingRailcarsfromTrustsMemberMember
/ us-gaap_StatementBusinessSegmentsAxis
= trn_RailcarLeasingAndManagementServicesGroupMember		  
Railcar Leasing and Management Services Group | Minimum          
Railcar Leasing and Management Services Group (Textual) [Abstract]          
Term of leases with third parties (in years) 1 year        
Railcar Leasing and Management Services Group | Maximum          
Railcar Leasing and Management Services Group (Textual) [Abstract]          
Term of leases with third parties (in years) 20 years        
Railcars owned one year or less at the time of sale | Railcar Leasing and Management Services Group          
Railcar Leasing and Management Services Group (Textual) [Abstract]          
Revenue 78.7us-gaap_SalesRevenueNet
/ trn_RevenueByTypeAxis
= trn_RailcarOwnedOneYearOrLessMember
/ us-gaap_StatementBusinessSegmentsAxis
= trn_RailcarLeasingAndManagementServicesGroupMember		 292.9us-gaap_SalesRevenueNet
/ trn_RevenueByTypeAxis
= trn_RailcarOwnedOneYearOrLessMember
/ us-gaap_StatementBusinessSegmentsAxis
= trn_RailcarLeasingAndManagementServicesGroupMember		      
Element          
Railcar Leasing and Management Services Group (Textual) [Abstract]          
Proceeds from the sale of leased railcars 127.0trn_ProceedsfromtheSaleofLeasedAssets
/ us-gaap_LeaseArrangementTypeAxis
= trn_ElementMember		 514.3trn_ProceedsfromtheSaleofLeasedAssets
/ us-gaap_LeaseArrangementTypeAxis
= trn_ElementMember		   1,114.7trn_ProceedsfromtheSaleofLeasedAssets
/ us-gaap_LeaseArrangementTypeAxis
= trn_ElementMember		  
Element | Rail Group          
Railcar Leasing and Management Services Group (Textual) [Abstract]          
Revenue 15.2us-gaap_SalesRevenueNet
/ us-gaap_LeaseArrangementTypeAxis
= trn_ElementMember
/ us-gaap_StatementBusinessSegmentsAxis
= trn_RailGroupMember		 13.7us-gaap_SalesRevenueNet
/ us-gaap_LeaseArrangementTypeAxis
= trn_ElementMember
/ us-gaap_StatementBusinessSegmentsAxis
= trn_RailGroupMember		      
Element | Railcars owned one year or less at the time of sale | Railcar Leasing and Management Services Group          
Railcar Leasing and Management Services Group (Textual) [Abstract]          
Revenue 50.1us-gaap_SalesRevenueNet
/ us-gaap_LeaseArrangementTypeAxis
= trn_ElementMember
/ trn_RevenueByTypeAxis
= trn_RailcarOwnedOneYearOrLessMember
/ us-gaap_StatementBusinessSegmentsAxis
= trn_RailcarLeasingAndManagementServicesGroupMember		 277.9us-gaap_SalesRevenueNet
/ us-gaap_LeaseArrangementTypeAxis
= trn_ElementMember
/ trn_RevenueByTypeAxis
= trn_RailcarOwnedOneYearOrLessMember
/ us-gaap_StatementBusinessSegmentsAxis
= trn_RailcarLeasingAndManagementServicesGroupMember		      
Proceeds from railcar lease fleet sales owned more than one year at the time of sale $ 61.7trn_ProceedsFromSalesOfRailcarsOwnedMoreThanOneYearAtTimeOfSale
/ us-gaap_LeaseArrangementTypeAxis
= trn_ElementMember
/ trn_RevenueByTypeAxis
= trn_RailcarOwnedOneYearOrLessMember
/ us-gaap_StatementBusinessSegmentsAxis
= trn_RailcarLeasingAndManagementServicesGroupMember		 $ 222.7trn_ProceedsFromSalesOfRailcarsOwnedMoreThanOneYearAtTimeOfSale
/ us-gaap_LeaseArrangementTypeAxis
= trn_ElementMember
/ trn_RevenueByTypeAxis
= trn_RailcarOwnedOneYearOrLessMember
/ us-gaap_StatementBusinessSegmentsAxis
= trn_RailcarLeasingAndManagementServicesGroupMember		      
[1] (unaudited)