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Goodwill and Intangible Assets - Schedule of Expected Amortization Expense (Detail)
$ in Thousands
Jun. 30, 2015
USD ($)
Finite-Lived Intangible Assets, Net, Amortization Expense, Fiscal Year Maturity [Abstract]  
2015 $ 3,892
2016 2,842
2017 2,665
2018 2,587
2019 2,388
2020 & thereafter $ 394