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Commitments And Contingencies Schedule of Future Minimum Lease Paynments (Details)
$ in Thousands
Dec. 31, 2017
USD ($)
Commitments and Contingencies Disclosure [Abstract]  
2018 $ 8,924
2019 7,718
2020 6,092
2021 5,715
2022 5,638
Thereafter 12,921
Total Future Minimum Lease Payments $ 47,008