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Future Intangible Asset Amortization Expense (Detail) (USD $)
In Thousands, unless otherwise specified
Dec. 31, 2013
Finite-Lived Intangible Assets And Liabilities [Line Items]  
2014 $ 7,099
2015 6,867
2016 5,297
2017 4,283
2018 3,693
Finite Lived Intangible Assets, Amortization Expense, Net, Total $ 27,239