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Commitments and Contingencies - Schedule of Operating Leases Requiring Annual Minimum Lease Payments (Detail) (USD $)
In Thousands, unless otherwise specified
Dec. 31, 2014
Commitments and Contingencies Disclosure [Abstract]  
2015 $ 15,648us-gaap_OperatingLeasesFutureMinimumPaymentsDueCurrent
2016 15,034us-gaap_OperatingLeasesFutureMinimumPaymentsDueInTwoYears
2017 15,056us-gaap_OperatingLeasesFutureMinimumPaymentsDueInThreeYears
2018 14,923us-gaap_OperatingLeasesFutureMinimumPaymentsDueInFourYears
2019 13,927us-gaap_OperatingLeasesFutureMinimumPaymentsDueInFiveYears
Thereafter 298,451us-gaap_OperatingLeasesFutureMinimumPaymentsDueThereafter
Total $ 373,039us-gaap_OperatingLeasesFutureMinimumPaymentsDue