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Stock-Based Compensation - Narrative (Details) - USD ($)
$ in Thousands
1 Months Ended 3 Months Ended 12 Months Ended
Aug. 04, 2021
Jan. 31, 2022
Dec. 31, 2020
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Oct. 07, 2020
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Fixed value RSUs granted $ 2,000            
Subsequent Event              
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Consecutive trading days   30 days          
Minimum              
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Award vesting period       6 months      
Maximum              
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Award vesting period       4 years      
Polaris Plan              
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Number of shares available for issuance (in shares)             343,114
Share-based compensation arrangement, non-option equity instruments granted (in shares)             267,768
Compensation expense for accelerated vesting     $ 106,200        
Fair value of units outstanding             $ 475,500
Total stock-based compensation         $ 405,843 $ (14,880)  
2020 Omnibus Incentive Plan              
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Total stock-based compensation       $ 18,010 $ 211    
Unrecognized compensation cost       $ 22,800      
Weighted average period of recognition       3 years 3 months      
2020 Omnibus Incentive Plan | Employee RS              
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Number of shares available for issuance (in shares)       85,850,000