XML 98 R78.htm IDEA: XBRL DOCUMENT v3.20.4
Stock Incentive Plans - Fair Value Assumptions (Details) - $ / shares
2 Months Ended 12 Months Ended
Mar. 01, 2021
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
RSUs        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Weighted-average fair value per share of grants (in dollars per share)   $ 25.38 $ 29.67 $ 23.66
Performance shares        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Weighted-average fair value per share of grants (in dollars per share)   25.48 $ 29.90 $ 23.78
2010 LTIP | RSUs        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Weighted-average fair value per share of grants (in dollars per share)   $ 0    
Number of shares awarded (in shares)   0    
2010 LTIP | Performance shares        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Weighted-average fair value per share of grants (in dollars per share)   $ 0    
Number of shares awarded (in shares)   0 154,511  
2010 LTIP | Performance shares | Maximum        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Number of shares awarded (in shares)   154,363    
2019 LTIP | RSUs        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Weighted-average fair value per share of grants (in dollars per share)   $ 0.01    
Number of shares awarded (in shares)   280,325    
2019 LTIP | Performance shares        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Weighted-average fair value per share of grants (in dollars per share)   $ 0.01    
Number of shares awarded (in shares)   154,363    
2019 LTIP | Performance shares | Subsequent Event        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Performance shares earned (in shares) 138,927