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Commitments and Contingencies (Future Minimum Rental Payments) (Details)
$ in Thousands
Dec. 31, 2016
USD ($)
Commitments And Contingencies Disclosure [Abstract]  
2017 $ 4,383
2018 3,638
2019 2,558
2020 1,878
2021 1,310
2022 and thereafter 1,426
Total $ 15,193