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Stock-Based Compensation - Additional Information (Details) - USD ($)
3 Months Ended 6 Months Ended 12 Months Ended 36 Months Ended
Sep. 11, 2020
Jun. 30, 2021
Mar. 31, 2021
Jun. 30, 2020
Dec. 31, 2021
Jun. 30, 2021
Jun. 30, 2020
Dec. 31, 2020
Dec. 31, 2019
Oct. 31, 2023
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]                    
Stock options granted   0       0        
Weighted-average grant date fair value of stock options granted   $ 3.17         $ 3.04      
Aggregate intrinsic value of options exercised   $ 79,900,000   $ 1,000,000.0   $ 98,600,000 $ 2,400,000      
Stock Options                    
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]                    
Stock options granted   0 0              
Stock-based compensation expense   $ 3,900,000   $ 1,700,000   8,100,000 $ 3,400,000      
Unrecognized stock-based compensation cost   26,500,000       $ 26,500,000        
Weighted-average period over which cost is expected to be recognized           2 years 6 months        
Restricted Stock Units ('RSUs')                    
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]                    
Restricted shares granted       0     0      
Restricted Stock Units ('RSUs') | Common Class A                    
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]                    
Stock-based compensation expense   12,300,000       $ 24,100,000        
Unrecognized stock-based compensation cost   131,700,000       $ 131,700,000        
Weighted-average period over which cost is expected to be recognized           3 years 4 months 24 days        
Restricted Stock Units ('RSUs') | Common Class B                    
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]                    
Stock-based compensation expense           $ 427,000,000.0        
Grant date fair value $ 533,300,000                  
Restricted Stock Units ('RSUs') | Common Class B | Co-Chief Executive Officers                    
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]                    
Restricted shares granted 24,633,066                  
Restricted Stock Awards                    
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]                    
Stock-based compensation expense   500,000   $ 400,000   1,000,000.0 $ 900,000      
Unrecognized stock-based compensation cost   $ 3,200,000       $ 3,200,000        
Weighted-average period over which cost is expected to be recognized             1 year 9 months 18 days      
Restricted shares granted   0 0           0  
Restricted shares outstanding   939,000 1,409,000     939,000   1,409,000    
Shares vested   470,000 0              
Restricted Stock Units ("RSUs") Performance-Vesting Founders Awards | Common Class B                    
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]                    
Stock-based compensation expense $ 319,800,000                  
Shares vested               16,422,044    
Shares for tax withholding obligations               700,000    
Restricted Stock Units ("RSUs") Performance-Vesting Founders Awards | Common Class B | Forecast                    
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]                    
Remaining shares not issued until three years from vesting date                   15,700,000
Restricted Stock Units ("RSUs") Performance-Vesting Founders Awards | Common Class B | Co-Chief Executive Officers                    
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]                    
Shares vested 8,211,022                  
Restricted Stock Units ("RSUs") Performance-Vesting Founders Awards | Common Class B | Co-Chief Executive Officers | Minimum                    
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]                    
Stock price $ 6.07                  
Restricted Stock Units ("RSUs") Performance-Vesting Founders Awards | Common Class B | Co-Chief Executive Officers | Maximum                    
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]                    
Stock price $ 51.28                  
Restricted Stock Units ("RSUs") Time-Vesting Founders Awards | Common Class B                    
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]                    
Stock-based compensation expense $ 107,200,000 $ 24,000,000.0       $ 54,000,000.0        
Unrecognized stock-based compensation cost   $ 106,300       $ 106,300        
Weighted-average period over which cost is expected to be recognized           1 year 10 months 24 days        
Restricted Stock Units ("RSUs") Time-Vesting Founders Awards | Common Class B | Forecast                    
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]                    
Stock-based compensation expense         $ 36,900,000          
Restricted Stock Units ("RSUs") Time-Vesting Founders Awards | Common Class B | Co-Chief Executive Officers                    
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]                    
Shares vested and settled 4,105,511                  
Vesting period 4 years