Annual report pursuant to Section 13 and 15(d)

Stock-based Compensation - Restricted shares (Details)

v3.21.1
Stock-based Compensation - Restricted shares (Details) - USD ($)
$ / shares in Units, $ in Millions
1 Months Ended 6 Months Ended 12 Months Ended
Dec. 18, 2020
Dec. 31, 2020
May 06, 2019
Dec. 31, 2020
Employee Stock Ownership Plan (ESOP), Shares in ESOP [Abstract]        
Vesting period       4 years
Restricted common shares        
Employee Stock Ownership Plan (ESOP), Shares in ESOP [Abstract]        
Shares sold     30,188,011  
Purchase price per share     $ 0.008  
Vesting percentage 25.00%      
Vesting period 36 months      
SOP incremental fair value from modification $ 105.3      
SOP compensation expense   $ 77.7    
Restricted common shares | Share-based Payment Arrangement, Tranche One        
Employee Stock Ownership Plan (ESOP), Shares in ESOP [Abstract]        
Vesting percentage     12.50%  
Cumulative funding trigger for vesting     $ 100.0  
Restricted common shares | Share-based Payment Arrangement, Tranche Two        
Employee Stock Ownership Plan (ESOP), Shares in ESOP [Abstract]        
Vesting percentage     37.50%  
Vesting period     36 months  
Restricted common shares | Share-based Payment Arrangement, Tranche Three        
Employee Stock Ownership Plan (ESOP), Shares in ESOP [Abstract]        
Vesting percentage     50.00%