Property, Plant, Equiment and Railcars on Lease, net (Details 1) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2013
Summary of future contractual minimum rental revenues required under non-cancellable operating leases for railcars
2014	$ 41,431
2015	40,686
2016	38,968
2017	30,620
2018	19,606
2019 and thereafter	33,561
Total	$ 204,872

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

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 13

-Paragraph 23

-Subparagraph b(ii)

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

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