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Equity and Stock-based Compensation - Schedule of Assumptions used to Estimate Fair Value of Stock Options Granted and Employee Stock Purchase Plans (Detail) - $ / shares
 12 Months Ended
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2021
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]      
Weighted average estimated fair value $ 7.27 $ 14.72 $ 35.58
Employee stock options [Member]      
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]      
Expected term (in years) 6 years 1 month 6 days 5 years 8 months 12 days 5 years 8 months 12 days
Expected volatility 92.80% 66.80% 61.90%
Risk-free interest rate 3.00% 2.20% 0.80%
Expected dividend yield 0.00% 0.00% 0.00%
Weighted average estimated fair value $ 4.67 $ 7.88 $ 20.21
Employee stock purchase plans [Member]      
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]      
Expected volatility, minimum 56.70% 58.50% 47.10%
Expected volatility, maximum 271.20% 97.60% 104.40%
Risk-free interest rate, minimum 0.20% 0.10% 0.00%
Risk-free interest rate, maximum 5.20% 4.50% 2.20%
Expected dividend yield 0.00% 0.00% 0.00%
Weighted average estimated fair value $ 5.64 $ 8.6 $ 12.4
Employee stock purchase plans [Member] | Minimum [Member]      
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]      
Expected term (in years) 6 months 6 months 6 months
Employee stock purchase plans [Member] | Maximum [Member]      
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]      
Expected term (in years) 2 years 2 years 2 years