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, unless otherwise specified
Sep. 30, 2014
Dec. 31, 2013
Finite-Lived Intangible Assets [Line Items]    
For the three months ended December 31, 2014 $ 1,731  
For the twelve months ended December 31, 2015 5,988  
For the twelve months ended December 31, 2016 5,876  
For the twelve months ended December 31, 2017 5,319  
For the twelve months ended December 31, 2018 4,240  
Thereafter 26,218  
Total $ 49,372 $ 55,320