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Commitments and Contingencies - Operating Leases (Details)
$ in Thousands
Dec. 31, 2016
USD ($)
Operating Leases, Future Minimum Payments Due, Fiscal Year Maturity [Abstract]  
2017 $ 7,867
2018 7,373
2019 6,889
2020 6,552
2021 5,704
Thereafter 15,746
Total minimum future lease payments $ 50,131