Quarterly report pursuant to Section 13 or 15(d)

Intangible Assets - Schedule of Future Amortization Related to Intangible Assets (Detail)

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Intangible Assets - Schedule of Future Amortization Related to Intangible Assets (Detail) (USD $)
In Thousands, unless otherwise specified
Mar. 31, 2015
Dec. 31, 2014
Finite-Lived Intangible Assets, Net, Amortization Expense, Fiscal Year Maturity [Abstract]    
2015 (remainder of) $ 968us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseRemainderOfFiscalYear  
2016 1,236us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo  
2017 1,135us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearThree  
2018 1,001us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFour  
2019 720us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFive  
Thereafter 5,784us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseAfterYearFive  
Total $ 10,844us-gaap_FiniteLivedIntangibleAssetsNet $ 11,167us-gaap_FiniteLivedIntangibleAssetsNet