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Commitments - Schedule of Future Minimum Lease Payments Under Operating Leases (Detail)
$ in Thousands
Dec. 31, 2015
USD ($)
Commitments And Contingencies Disclosure [Abstract]  
2016 $ 3,531
2017 2,905
2018 2,629
2019 2,175
2020 1,732
Thereafter 1,729
Total $ 14,701