Quarterly report pursuant to Section 13 or 15(d)

Stock Award Plans and Stock-Based Compensation - Restricted Stock Awards (Details)

v3.21.2
Stock Award Plans and Stock-Based Compensation - Restricted Stock Awards (Details) - Restricted Stock Award - USD ($)
$ in Millions
6 Months Ended
Apr. 23, 2021
Feb. 19, 2021
Jun. 30, 2021
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Options granted (in shares) 344,826 5,250,000  
Options forfeited in period (in shares)   921,838  
Share-based payment charges     $ 6.3
Share-based Payment Arrangement, Tranche One      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Award vesting rights, percentage 50.00% 25.00%  
Share-based Payment Arrangement, Tranche Two      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Award vesting rights, percentage 50.00% 50.00%