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Commitments and Contingencies - Schedule of Future Minimum Commitments for Operating Leases (Detail)
$ in Thousands
Dec. 31, 2015
USD ($)
Commitments And Contingencies Disclosure [Abstract]  
2016 $ 967
2017 969
2018 981
2019 734
2020 614
Thereafter 207
Total operating lease commitments $ 4,472