Railcar Leasing and Management Services Group (Details 4) (Leasing Group, USD $) In Millions, unless otherwise specified	Dec. 31, 2012
Future contractual minimum rental revenues on leases
2013	$ 369.2
2014	294.7
2015	236.8
2016	185.7
2017	129.9
Thereafter	249.7
Total	1,466.0
Future operating lease obligations of railcars other than those owned by the Trusts
Future contractual minimum rental obligations on leases
2013	12.9
2014	12.8
2015	12.8
2016	12.7
2017	12.1
Thereafter	50.3
Total	113.6
Future contractual minimum rental revenues of railcars other than those owned by the Trusts
Future contractual minimum rental revenues on leases
2013	16.6
2014	16.0
2015	12.4
2016	11.4
2017	8.9
Thereafter	14.0
Total	$ 79.3

Amount of required minimum rental payments for leases having an initial or remaining non-cancelable letter-terms in excess of one year.

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-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

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Amount of required minimum rental payments maturing in the fifth fiscal year following the latest fiscal year for operating leases having an initial or remaining non-cancelable letter-terms in excess of one year.

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Amount of required minimum rental payments maturing in the forth fiscal year following the latest fiscal year for operating leases having an initial or remaining non-cancelable letter-terms in excess of one year.

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Amount of required minimum rental payments maturing in the third fiscal year following the latest fiscal year for operating leases having an initial or remaining non-cancelable letter-terms in excess of one year.

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Amount of required minimum rental payments maturing in the second fiscal year following the latest fiscal year for operating leases having an initial or remaining non-cancelable letter-terms in excess of one year.

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Amount of required minimum rental payments maturing after the fifth fiscal year following the latest fiscal year for operating leases having an initial or remaining non-cancelable letter-terms in excess of one year.

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Future minimum rental payments in aggregate as of the balance sheet date under operating leases.

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Future rental payments receivable within one year of the balance sheet date under an operating lease.

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Future rental payments receivable within the fourth year from the balance sheet date under an operating lease.

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Future rental payments receivable within the second year from the balance sheet date under an operating lease.

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Future minimum lease payments receivable under operating leases for periods greater than five years following the balance sheet date.

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