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Commitments and Contingencies - Future Minimum Rental Payments Required Under Non-Cancellable Leases (Detail)
$ in Thousands
Dec. 31, 2015
USD ($)
Commitments and Contingencies Disclosure [Abstract]  
2016 $ 3,288
2017 2,792
2018 1,611
2019 869
2020 416
Thereafter 87
Total $ 9,063