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Long-Term Debt and Capital Lease Obligations - Schedule of Aggregate Annual Maturities of Term Loan (Detail) (USD $)
In Thousands, unless otherwise specified
Dec. 31, 2014
Long-term Debt, Fiscal Year Maturity [Abstract]  
2015 $ 10,000us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths
2016 10,000us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo
2017 20,000us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree
2018 30,000us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour
2019 and thereafter $ 130,000us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFive