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Estimated Aggregate Future Amortization Expense for Intangible Assets (Detail) (USD $)
In Thousands, unless otherwise specified
Mar. 31, 2014
Dec. 31, 2013
Finite-Lived Intangible Assets [Line Items]    
For the nine months ended December 31, 2014 $ 4,598  
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 4,402  
Thereafter 26,337  
Total $ 52,520 $ 55,320