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Equity Incentive Plans - Summary of Estimated Fair Value of Employee Stock Options (Details)
3 Months Ended 6 Months Ended
Jun. 30, 2022
Jun. 30, 2021
Jun. 30, 2022
Jun. 30, 2021
Fair Value Assumptions        
Expected volatility, Minimum 78.90% 81.20% 78.10% 81.00%
Expected volatility, Maximum 81.20% 81.80% 81.20% 82.50%
Expected dividend yield 0.00% 0.00% 0.00% 0.00%
Expected term (in years) 5 years 6 months 5 years 6 months   5 years 6 months
Risk-free interest rate, Minimum 2.80% 0.90% 1.60% 0.50%
Risk-free interest rate, Maximum 3.00% 1.00% 3.00% 1.00%
Minimum        
Fair Value Assumptions        
Expected term (in years)     5 years 4 months 24 days  
Maximum        
Fair Value Assumptions        
Expected term (in years)     5 years 6 months