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Goodwill and Intangible Assets - Estimated Amortization Expense (Detail)
$ in Thousands
Jun. 30, 2015
USD ($)
Goodwill and Intangible Assets Disclosure [Abstract]  
2015 (remaining) $ 3,399
2016 6,696
2017 6,624
2018 6,608
2019 6,595
2020 6,510
Thereafter $ 11,390