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Goodwill and Intangible Assets - Schedule of Expected Amortization Expense (Detail)
$ in Thousands
Mar. 31, 2017
USD ($)
Finite-Lived Intangible Assets, Net, Amortization Expense, Fiscal Year Maturity [Abstract]  
2017 $ 1,162
2018 1,084
2019 885
2020 $ 144