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Stockholders' Deficit - Summary of Assumptions used in Black-Scholes Option Pricing Model to Determine Fair Value of Stock Option Grants (Details)
3 Months Ended 6 Months Ended
Jun. 30, 2022
Jun. 30, 2021
Jun. 30, 2022
Jun. 30, 2021
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]        
Risk-free interest rate, minimum 2.90%   1.90%  
Risk-free interest rate, maximum 3.40%   3.40%  
Expected volatility, minimum 83.40%   83.40%  
Expected volatility, maximum 92.90%   92.90%  
Expected dividend yield 0.00% 0.00% 0.00% 0.00%
Minimum        
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]        
Expected term (in years) 6 years   5 years 6 months  
Maximum        
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]        
Expected term (in years) 6 years 1 month 6 days   6 years 1 month 6 days