Net Loss Per Share Attributable to Common Stockholders - Schedule of Anti-dilutive Outstanding Shares or Equivalents (Details) - shares shares in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Antidilutive Securities Excluded From Computation Of Earnings Per Share [Line Items]
Anti-dilutive outstanding shares or equivalents	9,930,793	18,652,653
Redeemable Convertible Preferred Stock
Antidilutive Securities Excluded From Computation Of Earnings Per Share [Line Items]
Anti-dilutive outstanding shares or equivalents		12,343,727
Options To Purchase Common Stock
Antidilutive Securities Excluded From Computation Of Earnings Per Share [Line Items]
Anti-dilutive outstanding shares or equivalents	5,056,743	306,739
Common Stock Subject To Vesting Or Repurchase
Antidilutive Securities Excluded From Computation Of Earnings Per Share [Line Items]
Anti-dilutive outstanding shares or equivalents	4,774,798	6,002,187
Employee Stock Purchase Plan shares
Antidilutive Securities Excluded From Computation Of Earnings Per Share [Line Items]
Anti-dilutive outstanding shares or equivalents	99,252