Leases (Details) $ in Millions	12 Months Ended
Dec. 31, 2015 USD ($) Car	Dec. 31, 2014 USD ($) Car	Dec. 31, 2013 Car
Subsequent Event [Line Items]
Number of railcars received \| Car	157	62	640
Direct Financing [Abstract]
Total minimum lease payments receivable, Direct Financing	$ 199.6	$ 204.8
Estimated non-guaranteed residual value of leased assets, Direct Financing	58.7	68.5
Unearned income, Direct Financing	(90.7)	(98.6)
Finance leases, Direct Financing	$ 167.6	$ 174.7

Direct financing leases net investment in direct financing leases disclosure finance lease net of unearned income.

No definition available.

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- Definition

Number of railcars received

+ References

No definition available.

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- References

No definition available.

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- Definition

The remaining (unamortized) difference between the gross investment in a direct financing lease and the cost or carrying amount, if different, of the leased property as of the balance sheet date.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 840
-SubTopic 30
-Section 50
-Paragraph 4
-Subparagraph (a)(4)
-URI http://asc.fasb.org/extlink&oid=25496975&loc=d3e45377-112738

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- Definition

Amount of remaining payments as of the balance sheet date that lessees are obligated to make or can be required to make under direct financing leases, including any guarantee of residual value and executory costs. The amount also includes any guaranteed rental payments by an unrelated third-party provided that are financially capable of making such payments.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 840
-SubTopic 30
-Section 50
-Paragraph 4
-Subparagraph (a)(1)
-URI http://asc.fasb.org/extlink&oid=25496975&loc=d3e45377-112738

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- Definition

The estimate of the lease property's economic value at the end of the direct financing lease term excluding any amounts guaranteed by either the lessee or a third-party.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 840
-SubTopic 30
-Section 50
-Paragraph 4
-Subparagraph (a)(2)
-URI http://asc.fasb.org/extlink&oid=25496975&loc=d3e45377-112738

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- Definition

Detail information of subsequent event by type. User is expected to use existing line items from elsewhere in the taxonomy as the primary line items for this disclosure, which is further associated with dimension and member elements pertaining to a subsequent event.

+ References

No definition available.

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