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Goodwill and Intangible Assets (Detail) - (Table 3) (USD $)
In Thousands, unless otherwise specified
Dec. 31, 2014
Finite-Lived Intangible Assets, Net, Amortization Expense, Fiscal Year Maturity [Abstract]  
2012 (remaining nine months) $ 3,023us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths
2013 2,725us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo
2014 2,490us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearThree
2015 2,351us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFour
2016 2,276us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFive
Thereafter 3,646us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseAfterYearFive
Total $ 16,511us-gaap_FiniteLivedIntangibleAssetsNet