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Income Taxes - Additional Information (Detail) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Income Tax [Line Items]    
U.S. federal income tax rates 21.00% 21.00%
Valuation allowance $ 53,066 $ 43,314
Change in the valuation allowance 9,800 $ 24,200
Federal    
Income Tax [Line Items]    
Net operating loss carryforwards $ 166,900  
Net operating loss carryforwards expiration year 2027  
Research and Development Tax Credit    
Income Tax [Line Items]    
Net operating loss carryforwards $ 6,100  
Net operating loss carryforwards expiration year 2029