Railcar Leasing and Management Services Group (Details 3) (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 Trusts' railcars
Future contractual minimum rental obligations on leases
2013	45.6
2014	44.7
2015	43.0
2016	40.1
2017	41.9
Thereafter	298.9
Total	514.2
Future contractual minimum rental revenues of Trusts' railcars
Future contractual minimum rental revenues on leases
2013	55.0
2014	39.8
2015	30.5
2016	21.9
2017	13.1
Thereafter	30.0
Total	$ 190.3

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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-Name Statement of Financial Accounting Standard (FAS)

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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 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 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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