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Commitments And Contingencies (Future Minimum Lease Payments) (Details)
$ in Thousands
Mar. 31, 2017
USD ($)
Commitments And Contingencies [Abstract]  
2017 $ 27,309
2018 27,009
2019 17,903
2020 12,385
2021 5,957
Thereafter 21,590
Total $ 112,153