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Commitments And Contingencies (Schedule of Future Minimum Lease Payments) (Details)
$ in Thousands
Dec. 31, 2016
USD ($)
Commitments and Contingencies Disclosure [Abstract]  
2017 $ 9,388
2018 7,978
2019 6,068
2020 4,936
2021 4,116
Thereafter 8,017
Total minimum lease payments $ 40,503