Equity Incentive Plans - Reserved Shares of Common Stock for Issuance (Details) - shares	Dec. 31, 2021	Dec. 31, 2020
Class of Stock [Line Items]
Warrants to purchase common stock	0	75,000,000
Total	26,142,793,000	22,212,404,000
2020 Equity Incentive Plan | Common stock
Class of Stock [Line Items]
Shares reserved of common stock for issuance	9,979,700,000	2,537,181,000
Options to purchase common stock
Class of Stock [Line Items]
Shares reserved of common stock for issuance	12,785,176,000	19,600,223,000
Unvested RSUs
Class of Stock [Line Items]
Shares reserved of common stock for issuance	1,508,615,000	0
ESPP
Class of Stock [Line Items]
Shares reserved of common stock for issuance	1,869,302,000	0