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Commitments and Contingencies (Schedule of Future Minimum Lease Payments) (Details)
$ in Thousands
Dec. 31, 2016
USD ($)
Operating Leases, Future Minimum Payments Due, Fiscal Year Maturity [Abstract]  
2017 $ 21,929
2018 19,391
2019 14,937
2020 11,870
2021 7,306
Thereafter 15,392
Total $ 90,825