Quarterly report pursuant to Section 13 or 15(d)

Income Taxes - Additional Information (Detail)

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Income Taxes - Additional Information (Detail) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2021
Sep. 30, 2020
Sep. 30, 2021
Sep. 30, 2020
Dec. 31, 2020
Income Tax Disclosure [Abstract]          
Valuation allowance $ 2,432   $ 2,432   $ 4,658
Combined federal and state statutory rate 24.50% 24.50% 24.50% 24.50%  
Tax Expense $ 1,500   $ (2,400)    
Valuation Allowance $ 1,500   $ 2,200