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Commitments and Contingencies - Summary of Future Minimum Payments under Contractual Obligations (Detail)
$ in Thousands
Dec. 31, 2015
USD ($)
Commitments And Contingencies Disclosure [Abstract]  
2016 $ 1,015
2017 1,388
2018 1,222
2019 984
2020 503
Thereafter 385
Total minimum payments $ 5,497