Annual report pursuant to Section 13 and 15(d)

Commitments and Contingencies - Schedule of Future Minimum Lease Payments for Operating Leases (Detail)

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Commitments and Contingencies - Schedule of Future Minimum Lease Payments for Operating Leases (Detail) (USD $)
In Thousands, unless otherwise specified
Dec. 31, 2014
Commitments and Contingencies Disclosure [Abstract]  
2015 $ 13,144us-gaap_OperatingLeasesFutureMinimumPaymentsDueCurrent
2016 10,198us-gaap_OperatingLeasesFutureMinimumPaymentsDueInTwoYears
2017 7,535us-gaap_OperatingLeasesFutureMinimumPaymentsDueInThreeYears
2018 5,995us-gaap_OperatingLeasesFutureMinimumPaymentsDueInFourYears
2019 3,338us-gaap_OperatingLeasesFutureMinimumPaymentsDueInFiveYears
Thereafter 5,658us-gaap_OperatingLeasesFutureMinimumPaymentsDueThereafter
Operating Leases, Future Minimum Payments Due, Total $ 45,868us-gaap_OperatingLeasesFutureMinimumPaymentsDue