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Goodwill and Intangibles - Schedule of Estimated Amortization Expense of Intangibles (Detail) - USD ($)
$ in Thousands
Sep. 30, 2015
Dec. 31, 2014
Goodwill and Intangible Assets Disclosure [Abstract]    
Remaining in 2015 $ 430  
2016 1,434  
2017 1,217  
2018 1,137  
2019 962  
Thereafter 2,372  
Net Intangible Assets $ 7,552 $ 8,942