Quarterly report pursuant to Section 13 or 15(d)

Intangible Assets - Schedule of Expected Annual Amortization Expense for Intangible Assets (Detail)

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Intangible Assets - Schedule of Expected Annual Amortization Expense for Intangible Assets (Detail)
$ in Thousands
Mar. 31, 2017
USD ($)
Goodwill and Intangible Assets Disclosure [Abstract]  
Amortization expense, 2017 $ 4,152
Amortization expense, 2018 5,202
Amortization expense, 2019 4,769
Amortization expense, 2020 4,323
Amortization expense, 2021 3,951
Amortization expense, 2022 and thereafter $ 5,236