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Property, Plant and Equipment and Railcars on Leases, net (Details 1)
$ in Thousands
Mar. 31, 2016
USD ($)
Operating Leases, Future Minimum Payments Receivable [Abstract]  
Remaining 9 months of 2016 $ 96,568
2017 114,799
2018 101,443
2019 83,094
2020 48,256
2021 and thereafter 64,485
Total $ 508,645