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Goodwill and Intangible Assets - Estimated Amortization Expense (Detail) (USD $)
In Thousands, unless otherwise specified
Sep. 30, 2014
Goodwill and Intangible Assets Disclosure [Abstract]  
2014 (remaining) $ 1,777
2015 6,555
2016 6,306
2017 6,268
2018 6,260
2019 6,214
Thereafter $ 15,432