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Commitments and Contingencies - Schedule of Future Minimum Lease Payments Under Non-Cancelable Operating Leases (Detail)
$ in Thousands
Dec. 31, 2016
USD ($)
Future Minimum Lease Payments Under Non-cancelable Operating Leases  
2017 $ 4,805
2018 3,935
2019 3,324
2020 2,001
2021 1,646
Thereafter 1,789
Total $ 17,500