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Leases - Summary of additional information regarding Company's Leases (Detail) - USD ($)
$ in Thousands
 3 Months Ended
Mar. 31, 2020
Mar. 31, 2019
Dec. 31, 2019
Lease cost:      
Operating lease cost $ 798 $ 798  
Short-term lease cost 342 389  
Total lease cost 1,140 1,187  
Other information:      
Cash paid for amounts included in the measurement of operating liabilities (operating leases) $ 926 $ 881  
Weighted-average remaining lease term (in years) – operating leases 9 years 2 months 12 days 10 years  
Weighted-average discount rate – operating leases 6.30%   6.30%