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Intangible Assets - Estimated Amortization Expense (Detail)
$ in Thousands
Jun. 30, 2016
USD ($)
Goodwill And Intangible Assets Disclosure [Abstract]  
Remainder of 2016 $ 750
2017 2,570
2018 2,523
2019 2,523
2020 2,348
2021 $ 2,209