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Intangible Assets and Goodwill - Estimated Future Amortization of Intangible Assets, Other Than Goodwill (Details)
$ in Thousands
Jun. 30, 2017
USD ($)
Finite Lived Intangible Assets Future Amortization Expense Current And Five Succeeding Fiscal Years [Abstract]  
Remainder of 2017 $ 8,669
2018 14,906
2019 14,744
2020 14,542
2021 14,098
Estimated future amortization expense over next five years $ 66,959