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Borrowings - PPP Loan - Additional Information (Detail) - USD ($)
$ in Thousands
1 Months Ended 3 Months Ended 9 Months Ended
Apr. 10, 2020
Apr. 30, 2020
Sep. 30, 2021
Sep. 30, 2021
Sep. 30, 2020
Debt Instrument [Line Items]          
Proceeds from Paycheck Protection Program loan         $ 4,873
Gain (loss) on extinguishment of debt, net     $ 4,930 $ (17,200)  
PPP Loan          
Debt Instrument [Line Items]          
Proceeds from Paycheck Protection Program loan $ 4,900 $ 4,900      
Maturity date Apr. 09, 2022        
Annual interest rate 0.98%   0.98% [1] 0.98% [1]  
Gain (loss) on extinguishment of debt, net     $ 4,900 $ 4,900  
[1] In July 2021, the Company received full forgiveness from the SBA for the $4.9 million principal balance of the PPP loan and recognized a gain on extinguishment of debt for the full principal balance and a de minimis amount of accrued but unpaid interest