Equity - Summary of Redeemable Convertible Preferred Stock (Details) - USD ($) $ in Thousands	Mar. 31, 2021	Dec. 31, 2020	Mar. 31, 2020	Dec. 31, 2019
Temporary Equity [Line Items]
Preferred Stock Authorized		338,973,691
Preferred Stock Issued		251,714,086
Preferred Stock Outstanding		251,714,086
Carrying Value		$ 107,336
Liquidation Value		111,628
Cumulative Undeclared Dividends		$ 7,698
Common Stock Issuable Upon Conversion		18,508,363
Series A-1 Redeemable Convertible Preferred Stock
Temporary Equity [Line Items]
Preferred Stock Authorized	0	20,000,000
Preferred Stock Issued	0	20,000,000
Preferred Stock Outstanding	0	20,000,000	20,000,000	20,000,000
Carrying Value		$ 2	$ 2	$ 2
Liquidation Value		$ 4,000
Common Stock Issuable Upon Conversion		1,470,588
Series A-2 Redeemable Convertible Preferred Stock
Temporary Equity [Line Items]
Preferred Stock Authorized	0	107,194,866
Preferred Stock Issued	0	107,194,866
Preferred Stock Outstanding	0	107,194,866	107,194,866	62,819,866
Carrying Value		$ 42,786	$ 42,786	$ 25,067
Liquidation Value		42,878
Cumulative Undeclared Dividends		$ 5,073
Common Stock Issuable Upon Conversion		7,881,965
Series B Redeemable Convertible Preferred Stock
Temporary Equity [Line Items]
Preferred Stock Authorized	0	211,778,825
Preferred Stock Issued	0	124,519,220
Preferred Stock Outstanding	0	124,519,220
Carrying Value		$ 64,548
Liquidation Value		64,750
Cumulative Undeclared Dividends		$ 2,625
Common Stock Issuable Upon Conversion		9,155,810