Quarterly report pursuant to Section 13 or 15(d)

Estimated Aggregate Future Amortization Expense for Intangible Assets (Detail)

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Estimated Aggregate Future Amortization Expense for Intangible Assets (Detail) - USD ($)
$ in Thousands
Mar. 31, 2017
Dec. 31, 2016
Finite-Lived Intangible Assets [Line Items]    
For the nine months ended December 31, 2017 $ 3,710  
For the twelve months ended December 31, 2018 4,835  
For the twelve months ended December 31, 2019 3,973  
For the twelve months ended December 31, 2020 4,304  
For the twelve months ended December 31, 2021 2,189  
Thereafter 15,002  
Total $ 34,013 $ 35,190