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Goodwill and Intangibles - Schedule of Estimated Aggregate Annual Amortization (Detail)
$ in Thousands
Mar. 31, 2017
USD ($)
Finite Lived Intangible Assets Net Amortization Expense Rolling Maturity [Abstract]  
Remainder of 2017 $ 19,437
2018 21,140
2019 16,168
2020 15,568
2021 14,550
Thereafter $ 52,334