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Stock-based Compensation - Additional Information (Details) - USD ($)		1 Months Ended		12 Months Ended
	May 28, 2020	Jun. 30, 2020	Feb. 29, 2020	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2015	Dec. 31, 2014
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unrecognized stock-based compensation expense				$ 15,400,000	$ 1,300,000
Unrecognized stock-based compensation weighted-average period				1 year 9 months 18 days	2 years 4 months 24 days
Weighted average fair value per share				$ 3.97
Aggregate intrinsic value of options exercised				$ 22,400,000
Aggregate intrinsic value of options outstanding				205,700,000
Aggregate intrinsic value of options exercisable				$ 128,100,000
Granted, Shares				2,073,006
Stock Options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation expense				$ 2,200,000	$ 2,600,000	$ 1,000,000
Unrecognized stock-based compensation expense				$ 3,500,000	$ 5,200,000
Unrecognized stock-based compensation weighted-average period				2 years 2 months 12 days	2 years 7 months 6 days
Restricted Stock Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation expense				$ 10,900,000	$ 100,000	100,000
Award acceleration period				12 months
Restricted Stock Units \| Chief Executive Officer
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Granted, Shares			367,782
Restricted Stock Units \| Service Periods Vest Ranging from 12 to 48 Months \| IPO
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation expense		$ 510,278,000
RSAs
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares available for future issuance							4,751,874	4,751,874
Stock-based compensation expense				$ 200,000	$ 0	$ 100,000
Unrecognized stock-based compensation expense				$ 0
Maximum \| Restricted Stock Units \| Service Periods Vest Ranging from 12 to 48 Months \| IPO
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Continuous service period		48 months
Minimum [Member] \| Restricted Stock Units \| Service Periods Vest Ranging from 12 to 48 Months \| IPO
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Continuous service period		12 months
2020 Incentive Award Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares available for future issuance				3,185,964
2020 Incentive Award Plan \| Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares authorized for issuance	3,019,108
Percentage annual increase in shares available for issuance as award in each year beginning	4.00%