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Goodwill and Other Intangible Assets - Estimated Amortization Expense For Intangibles Subject To Amortization (Details)
$ in Thousands
Jun. 30, 2017
USD ($)
Finite-Lived Intangible Assets, Net, Amortization Expense, Fiscal Year Maturity [Abstract]  
July 1 to December 31, 2017 $ 2,143
2018 4,188
2019 3,990
2020 3,990
2021 3,990
2022 3,990
Thereafter $ 9,039