Commitments and Contingencies - Future Minimum Lease Commitments for Non-Cancelable Operating Leases (Detail)
$ in Thousands
Dec. 31, 2016
USD ($)
Commitments and Contingencies Disclosure [Abstract]  
2017 $ 3,889
2018 2,064
2019 1,669
2020 1,303
2021 143
Total $ 9,068