Equity Incentive Plans and Stock-Based Compensation - 2020 Employee Stock Purchase Plan - Summary of Black-Scholes Option Pricing Model to Estimate Stock-based Compensation Expense for 2020 Employee Stock Purchase Plan (Details) - 2020 Employee Stock Purchase Plan	3 Months Ended
	Mar. 31, 2021
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Risk-free interest rate	0.07%
Expected term of options (in years)	6 months
Expected stock price volatility	89.51%
Expected dividend	0.00%