Long-term Debt (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2014
Summary of future contractual minimum rental revenues required under non-cancellable operating leases for railcars
2015	$ 96,813
2016	95,096
2017	80,174
2018	66,736
2019	45,782
2020 and thereafter	41,353
Total	425,954
Lease Fleet Financing [Member]
Summary of future contractual minimum rental revenues required under non-cancellable operating leases for railcars
2015	50,479
2016	49,248
2017	38,093
2018	26,462
2019	17,682
2020 and thereafter	24,892
Total	$ 206,856

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

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 840

-SubTopic 20

-Section 50

-Paragraph 4

-Subparagraph (b)

-URI http://asc.fasb.org/extlink&oid=6454179&loc=d3e41551-112718

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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 fifth 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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- Definition

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