Debt (Details) (USD $) In Millions, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2013 Carrying Value	Dec. 31, 2012 Carrying Value	Dec. 31, 2013 Recourse	Dec. 31, 2012 Recourse	Dec. 31, 2013 Recourse Carrying Value	Dec. 31, 2012 Recourse Carrying Value	Dec. 31, 2009 Recourse Capital lease obligations	Dec. 31, 2012 Non-recourse	Dec. 31, 2013 Corporate Recourse Carrying Value	Dec. 31, 2012 Corporate Recourse Carrying Value	Dec. 31, 2013 Railcar Leasing and Management Services Group Wholly-owned subsidiaries	Dec. 31, 2012 Railcar Leasing and Management Services Group Wholly-owned subsidiaries	Dec. 31, 2013 Railcar Leasing and Management Services Group Partially-owned subsidiaries	Dec. 31, 2012 Railcar Leasing and Management Services Group Partially-owned subsidiaries	Dec. 31, 2013 Railcar Leasing and Management Services Group Recourse Carrying Value	Dec. 31, 2012 Railcar Leasing and Management Services Group Recourse Carrying Value	Dec. 31, 2009 Railcar Leasing and Management Services Group Recourse Capital lease obligations	Dec. 31, 2013 Railcar Leasing and Management Services Group Recourse Capital lease obligations Carrying Value	Dec. 31, 2012 Railcar Leasing and Management Services Group Recourse Capital lease obligations Carrying Value	Dec. 31, 2013 Railcar Leasing and Management Services Group Recourse Term loan Carrying Value	Dec. 31, 2012 Railcar Leasing and Management Services Group Recourse Term loan Carrying Value	Dec. 31, 2013 Railcar Leasing and Management Services Group Recourse Wholly-owned subsidiaries	Dec. 31, 2012 Railcar Leasing and Management Services Group Recourse Wholly-owned subsidiaries	Dec. 31, 2013 Railcar Leasing and Management Services Group Recourse Partially-owned subsidiaries	Dec. 31, 2012 Railcar Leasing and Management Services Group Recourse Partially-owned subsidiaries	Dec. 31, 2013 Railcar Leasing and Management Services Group Non-recourse Carrying Value	Dec. 31, 2012 Railcar Leasing and Management Services Group Non-recourse Carrying Value	Dec. 31, 2012 Railcar Leasing and Management Services Group Non-recourse Wholly-owned subsidiaries	Dec. 31, 2013 Railcar Leasing and Management Services Group Non-recourse Wholly-owned subsidiaries Carrying Value	Dec. 31, 2012 Railcar Leasing and Management Services Group Non-recourse Wholly-owned subsidiaries Carrying Value	Dec. 31, 2013 Railcar Leasing and Management Services Group Non-recourse Wholly-owned subsidiaries 2006 secured railcar equipment notes Carrying Value	Dec. 31, 2012 Railcar Leasing and Management Services Group Non-recourse Wholly-owned subsidiaries 2006 secured railcar equipment notes Carrying Value	Dec. 31, 2013 Railcar Leasing and Management Services Group Non-recourse Wholly-owned subsidiaries Promissory notes Carrying Value	Dec. 31, 2012 Railcar Leasing and Management Services Group Non-recourse Wholly-owned subsidiaries Promissory notes Carrying Value	Dec. 31, 2013 Railcar Leasing and Management Services Group Non-recourse Wholly-owned subsidiaries 2009 secured railcar equipment notes Carrying Value	Dec. 31, 2012 Railcar Leasing and Management Services Group Non-recourse Wholly-owned subsidiaries 2009 secured railcar equipment notes Carrying Value	Dec. 31, 2013 Railcar Leasing and Management Services Group Non-recourse Wholly-owned subsidiaries 2010 secured railcar equipment notes Carrying Value	Dec. 31, 2012 Railcar Leasing and Management Services Group Non-recourse Wholly-owned subsidiaries 2010 secured railcar equipment notes Carrying Value	Dec. 31, 2013 Railcar Leasing and Management Services Group Non-recourse Wholly-owned subsidiaries TILC warehouse facility Carrying Value	Dec. 31, 2012 Railcar Leasing and Management Services Group Non-recourse Wholly-owned subsidiaries TILC warehouse facility Carrying Value	Dec. 31, 2012 Railcar Leasing and Management Services Group Non-recourse Partially-owned subsidiaries	Dec. 31, 2013 Railcar Leasing and Management Services Group Non-recourse Partially-owned subsidiaries Carrying Value	Dec. 31, 2012 Railcar Leasing and Management Services Group Non-recourse Partially-owned subsidiaries Carrying Value	Dec. 31, 2013 Railcar Leasing and Management Services Group Non-recourse Partially-owned subsidiaries TRL 2012 secured railcar equipment notes - RIV 2013 Carrying Value	Dec. 31, 2012 Railcar Leasing and Management Services Group Non-recourse Partially-owned subsidiaries TRL 2012 secured railcar equipment notes - RIV 2013 Carrying Value	Dec. 31, 2013 Railcar Leasing and Management Services Group Non-recourse Partially-owned subsidiaries TRIP Master Funding secured railcar equipment notes Carrying Value	Dec. 31, 2012 Railcar Leasing and Management Services Group Non-recourse Partially-owned subsidiaries TRIP Master Funding secured railcar equipment notes Carrying Value	Dec. 31, 2013 Railcar Leasing and Management Services Group Non-recourse Partially-owned subsidiaries TRIP Holdings senior secured notes Carrying Value	Dec. 31, 2012 Railcar Leasing and Management Services Group Non-recourse Partially-owned subsidiaries TRIP Holdings senior secured notes Carrying Value
Components of debt
Revolving credit facility											$ 0	$ 0
Convertible subordinated notes											450.0	450.0
Less: unamortized discount	(74.1)	(87.5)			(74.1)	(87.5)					(74.1)	(87.5)												0	0	0	0
Convertible subordinated notes, net											375.9	362.5
Other											0.9	1.2
Total debt	2,989.8	3,055.0	2,989.8	3,055.0	419.0	458.1	419.0	458.1			376.8	363.7	1,356.9	1,498.6	1,256.1	1,192.7	42.2	94.4						42.2	94.4	0	0	2,570.8	2,596.9		1,314.7	1,404.2
Capital lease obligations									56.6										56.6	42.2	45.8
Term loan																						0	48.6																		152.0	173.6						756.8	797.7
Notes payable	1,314.7	1,404.2																															240.7	255.8	396.1	424.1	199.0	209.2	326.9	341.5				1,256.1	1,192.7	499.3	333.8
TRIP Holdings senior secured notes:
Total outstanding																																																		0	170.0
Less: owned by Trinity										(108.8)																				0													(108.8)							0	(108.8)
TRIP Holdings senior secured notes																																																		$ 0	$ 61.2