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Stock Incentive Plans - Narrative (Details) - USD ($)
$ / shares in Units, $ in Thousands
1 Months Ended 12 Months Ended
May 31, 2021
May 30, 2021
Apr. 30, 2021
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Share-based Compensation Arrangement by Share-based Payment Award            
Share-based compensation expense       $ 142,660 $ 28,211 $ 21,757
Weighted average grant date fair value (in dollars per share)       $ 12.10 $ 1.81 $ 1.73
Total intrinsic value of options exercised       $ 83,000 $ 32,800 $ 21,200
Grants in period, grant date intrinsic value       $ 17,600 10,700 5,200
Chief Executive Officer            
Share-based Compensation Arrangement by Share-based Payment Award            
Weighted average grant date fair value (in dollars per share)       $ 10.53    
CEO Long-Term Performance Award            
Share-based Compensation Arrangement by Share-based Payment Award            
Share-based compensation expense       $ 38,189 0 0
Compensation costs related to unvested outstanding stock options, period for recognition (in years)       2 years 6 months    
Compensation costs related to unvested outstanding stock options       $ 90,400    
Secondary sales of common stock            
Share-based Compensation Arrangement by Share-based Payment Award            
Share-based compensation expense       $ 11,642 17,316 14,793
Stock options            
Share-based Compensation Arrangement by Share-based Payment Award            
Compensation costs related to unvested outstanding stock options, period for recognition (in years)       4 years 1 month 6 days    
Stock options | Chief Executive Officer            
Share-based Compensation Arrangement by Share-based Payment Award            
Share-based compensation expense       $ 31,231 10,895 6,964
Award vesting period (in years)       7 years    
Granted (in shares)   47,267 19,740,923      
Granted (in dollars per share) $ 23.40   $ 21.49      
Expected cost to be recognized over remaining derived service period       $ 170,200    
Restricted Stock Units (RSUs)            
Share-based Compensation Arrangement by Share-based Payment Award            
Share-based compensation expense       59,652 $ 0 $ 0
CEO Long-term performance awards       $ 136,100    
Compensation costs related to unvested outstanding stock options, period for recognition (in years)       3 years    
Stock Options            
Share-based Compensation Arrangement by Share-based Payment Award            
Granted (in shares)       29,113,555 6,404,800 17,008,222
Granted (in dollars per share)       $ 20.07 $ 2.31 $ 1.30
Stock Options | 2011 Plan            
Share-based Compensation Arrangement by Share-based Payment Award            
Fair market value of one share of common stock threshold       110.00%    
Restricted Stock Units with Service Condition            
Share-based Compensation Arrangement by Share-based Payment Award            
Share-based compensation expense       $ 34,300    
Award vesting period (in years)       4 years    
Class A Common Stock | Stock options, 10% Stockholders | 2011 Plan            
Share-based Compensation Arrangement by Share-based Payment Award            
Combined voting power of stockholder, 10% Stockholder       10.00%    
Expiration period (in years)       5 years    
Class A Common Stock | CEO Long-Term Performance Award | 2011 Plan            
Share-based Compensation Arrangement by Share-based Payment Award            
Purchase price of common stock, percent       85.00%    
Class A Common Stock | Stock Options | 2011 Plan            
Share-based Compensation Arrangement by Share-based Payment Award            
Fair market value of one share of common stock threshold       110.00%    
Combined voting power of stockholder, 10% Stockholder       10.00%    
Expiration period (in years)       10 years