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Goodwill and Intangibles - Schedule of Estimated Aggregate Annual Amortization (Detail)
$ in Thousands
Sep. 30, 2019
USD ($)
Finite Lived Intangible Assets Net Amortization Expense Rolling Maturity [Abstract]  
Remainder of 2019 $ 6,147
2020 23,867
2021 22,525
2022 21,604
2023 18,693
Thereafter $ 51,485