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Leases - Summary of additional information regarding Company's Leases (Detail) - USD ($)
$ in Thousands
 3 Months Ended 9 Months Ended
Sep. 30, 2020
Sep. 30, 2019
Sep. 30, 2020
Sep. 30, 2019
Lease cost:        
Operating lease cost $ 796 $ 789 $ 2,384 $ 2,379
Short-term lease cost 299 322 941 1,094
Total lease cost 1,095 1,111 3,325 3,473
Other information:        
Cash paid for amounts included in the measurement of operating liabilities (operating leases) $ 933 $ 902 $ 2,778 $ 2,662
Weighted-average remaining lease term (in years) – operating leases 8 years 10 months 24 days 9 years 7 months 6 days 8 years 10 months 24 days 9 years 7 months 6 days
Weighted-average discount rate – operating leases 6.30% 6.30% 6.30% 6.30%