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Intangible Assets - Estimated Amortization Expense (Detail)
$ in Thousands
Mar. 31, 2017
USD ($)
Goodwill And Intangible Assets Disclosure [Abstract]  
Remainder of 2017 $ 1,278
2018 2,510
2019 2,510
2020 2,335
2021 2,196
2022 $ 2,156