Annual report pursuant to Section 13 and 15(d)

SHARE-BASED COMPENSATION - Restricted Stock, RSUs, Performance Shares (Details)

v3.20.4
SHARE-BASED COMPENSATION - Restricted Stock, RSUs, Performance Shares (Details) - $ / shares
shares in Thousands
12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Weighted-Average Grant Date Fair Value Per Share (USD per share):      
Granted (in USD per share) $ 8.90 $ 13.91 $ 14.98
Restricted Stock Units      
Shares:      
Nonvested at beginning of period (in shares) 15,289    
Granted (in shares) 7,360    
Vested (in shares) (5,416)    
Forfeited (in shares) (581)    
Nonvested at end of period (in shares) 16,652 15,289  
Weighted-Average Grant Date Fair Value Per Share (USD per share):      
Nonvested at beginning of period (in USD per share) $ 13.42    
Granted (in USD per share) 8.98    
Vested (in USD per share) 12.39    
Forfeited (in USD per share) 12.49    
Nonvested at end of period (in USD per share) $ 12.05 $ 13.42  
Performance Share Units      
Shares:      
Nonvested at beginning of period (in shares) 2,769    
Granted (in shares) 2,154    
Vested (in shares) (1,626)    
Forfeited (in shares) (22)    
Nonvested at end of period (in shares) 3,275 2,769  
Weighted-Average Grant Date Fair Value Per Share (USD per share):      
Nonvested at beginning of period (in USD per share) $ 13.49    
Granted (in USD per share) 8.57    
Vested (in USD per share) 12.19    
Forfeited (in USD per share) 12.93    
Nonvested at end of period (in USD per share) $ 11.74 $ 13.49