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Stock-Based Compensation - Narrative (Details) - USD ($) $ / shares in Units, $ in Thousands		1 Months Ended	3 Months Ended		6 Months Ended
	Apr. 19, 2021	Apr. 30, 2021	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020	May 14, 2021	Dec. 31, 2020
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total remaining stock-based compensation expense for unvested stock options			$ 6,100		$ 6,100
Stock based compensation, weighted average period of recognition					1 year 2 months 12 days
Issuance of common stock upon exercise of options (in shares)					115,000
Options vested during period (in shares)		50,000
Nonvested options cancelled (in shares)		100,000
Total stock-based compensation			$ 64,366	$ 1,346	$ 65,592	$ 3,304
Equity Incentive Plan 2021
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares initially reserved for issuance (in shares)							10,700,000
Shares reserved for issuance as a percent of common stock issued and outstanding (as a percent)							5.00%
Stock granted under 2021 Plan (in shares)					0
Restricted stock units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock based compensation, weighted average period of recognition					1 year 6 months
Restricted stock units granted (in shares)		32,500			3,010,000
Service period					4 years
RSUs outstanding (in shares)	6,900,000		5,977,000		5,977,000			5,451,000
Fair value of RSUs (in dollars per share)	$ 25.04
Value of RSUs	$ 172,600
Total stock-based compensation			$ 63,400		$ 63,400
Weighted average grant date fair value (in dollars per share)			$ 14.08		$ 14.08			$ 5.75
Unrecognized stock based compensation expense			$ 108,200		$ 108,200
Restricted stock units | Chief Executive Officer
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock based compensation, weighted average period of recognition					3 years 10 months 24 days
Restricted stock units granted (in shares)	1,400,000
Total stock-based compensation			600		$ 600
Trading window (in days)	30 days
Expiration period					10 years
Aggregate stock based compensation expense over derived service period	$ 22,800
Unrecognized stock based compensation expense			$ 22,200		$ 22,200
Restricted stock units | Chief Executive Officer | Monte Carlo Simulation
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Service period					4 years 1 month 6 days
Fair value assumptions, expected dividend yield					0.00%
Fair value assumptions, expected term					10 years
Fair value assumptions, estimated volatility (as a percent)					59.00%
Fair value assumptions, risk-free rate (as a percent)					2.00%
Weighted average grant date fair value (in dollars per share)			$ 16.34		$ 16.34
Restricted stock units | Chief Executive Officer | Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Service period					1 year
RSUs vested in period, amount per share (in dollars per share)	$ 67.61
Restricted stock units | Chief Executive Officer | Minimum | Monte Carlo Simulation
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Service period					3 years 2 months 12 days
Restricted stock units | Chief Executive Officer | Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Service period					5 years
RSUs vested in period, amount per share (in dollars per share)	$ 157.75
Restricted stock units | Chief Executive Officer | Maximum | Monte Carlo Simulation
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Service period					5 years

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