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Property, Plant, Equiment and Railcars on Lease, net (Details 1)
$ in Thousands
Dec. 31, 2015
USD ($)
Summary of future contractual minimum rental revenues required under non-cancellable operating leases for railcars  
2016 $ 127,655
2017 112,673
2018 99,198
2019 80,841
2020 46,098
2021 and thereafter 57,879
Total $ 524,344