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Leases - Summary Of Lease Related Expenses (Detail) - USD ($)
$ in Thousands
 3 Months Ended 9 Months Ended
Sep. 30, 2021
Sep. 30, 2020
Sep. 30, 2021
Sep. 30, 2020
Leases [Abstract]        
Operating lease expense [1] $ 757 $ 533 $ 2,020 $ 1,649
Amortization of right-of-use assets 4 12 21 51
Interest on lease liabilities   1 1 3
Total finance lease expense $ 4 $ 13 $ 22 $ 54
[1] Includes short-term lease costs of $194 and $275 for the three months ended September 30, 2021 and 2020, respectively, and $497 and $315 for the nine months ended September 30, 2021 and 2020, respectively.