Annual report pursuant to Section 13 and 15(d)

Goodwill and Other Intangible Assets - Estimated Future Aggregate Amortization Expense of Intangible Assets (Detail)

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Goodwill and Other Intangible Assets - Estimated Future Aggregate Amortization Expense of Intangible Assets (Detail) - USD ($)
$ in Thousands
Dec. 31, 2015
Dec. 31, 2014
Goodwill and Intangible Assets Disclosure [Abstract]    
2016 $ 28,172  
2017 22,758  
2018 22,015  
2019 21,219  
2020 20,103  
Thereafter 90,807  
Intangible Assets, Net $ 205,074 $ 243,584