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Goodwill and Other Intangible Assets, net - Estimated Future Amortization Expense (Detail) - USD ($)
$ in Thousands
Dec. 31, 2015
Dec. 31, 2014
Finite-Lived Intangible Assets, Net, Amortization Expense, Fiscal Year Maturity [Abstract]    
2016 $ 2,579  
2017 1,587  
2018 380  
Intangible assets, net $ 4,546 $ 9,448