Fair Value Accounting (Details 2) (USD $) In Millions	Jun. 30, 2011		Dec. 31, 2010
Recourse:
Less: unamortized discount	$ (105.6)	[1]	$ (111.1)
Total Recourse Debt	455.3	[1]	450.3
Non-Recourse:
TRIP warehouse loan	963.3	[1]	1,003.9
Total Non-recourse	2,431.3	[1]	2,457.4
Total debt	2,886.6	[1]	2,907.7
Carrying Reported Amount Fair Value Disclosure [Member]
Recourse:
Convertible subordinated notes	450.0		450.0
Less: unamortized discount	(105.6)		(111.1)
Convertible subordinated notes, total	344.4		338.9
Capital lease obligations	49.9		51.2
Term loan	56.1		57.4
Other	4.9		2.8
Total Recourse Debt	455.3		450.3
Non-Recourse:
2006 secured railcar equipment notes	275.5		283.2
Promissory notes	478.2		493.8
2009 secured railcar equipment notes	223.6		229.2
2010 secured railcar equipment notes	360.7		367.1
TILC warehouse facility	130.0		80.2
TRIP warehouse loan	963.3		1,003.9
Total Non-recourse	2,431.3		2,457.4
Total debt	2,886.6		2,907.7
Estimate Of Fair Value Fair Value Disclosure [Member]
Recourse:
Convertible subordinated notes	471.4		448.3
Less: unamortized discount	0		0
Convertible subordinated notes, total	0		0
Capital lease obligations	49.9		51.2
Term loan	57.4		54.2
Other	4.9		2.8
Total Recourse Debt	583.6		556.5
Non-Recourse:
2006 secured railcar equipment notes	290.3		302.8
Promissory notes	462.1		482.2
2009 secured railcar equipment notes	236.2		256.1
2010 secured railcar equipment notes	342.1		345.5
TILC warehouse facility	130.0		80.2
TRIP warehouse loan	956.4		994.0
Total Non-recourse	2,417.1		2,460.8
Total debt	$ 3,000.7		$ 3,017.3

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