Annual report pursuant to Section 13 and 15(d)

Employee Benefit Plans - Estimated Future Benefit Payments (Detail)

v2.4.1.9
Employee Benefit Plans - Estimated Future Benefit Payments (Detail) (USD $)
In Thousands, unless otherwise specified
Dec. 31, 2014
Compensation And Retirement Disclosure [Abstract]  
2015 $ 131us-gaap_DefinedBenefitPlanExpectedFutureBenefitPaymentsNextTwelveMonths
2016 131us-gaap_DefinedBenefitPlanExpectedFutureBenefitPaymentsYearTwo
2017 131us-gaap_DefinedBenefitPlanExpectedFutureBenefitPaymentsYearThree
2018 131us-gaap_DefinedBenefitPlanExpectedFutureBenefitPaymentsYearFour
2019 131us-gaap_DefinedBenefitPlanExpectedFutureBenefitPaymentsYearFive
2020 - 2024 $ 1,497us-gaap_DefinedBenefitPlanExpectedFutureBenefitPaymentsFiveFiscalYearsThereafter