Annual report pursuant to Section 13 and 15(d)

EQUITY AND EARNINGS PER SHARE - Outstanding Options by Recipient (Details)

v3.19.3.a.u2
EQUITY AND EARNINGS PER SHARE - Outstanding Options by Recipient (Details) - USD ($)
$ / shares in Units, $ in Millions
Dec. 31, 2019
Dec. 31, 2018
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Number of unexercised options (in shares) 12,808,916  
Options exercisable (in shares) 4,791,215  
Director    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Number of unexercised options (in shares) 7,000 6,000
Stock Options | Director    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Number of unexercised options (in shares) 7,000  
Options exercisable (in shares) 7,000  
Weighted average exercise price (in dollars per share) $ 13.61  
Intrinsic value of exercisable options $ 0.0  
Stock Options | Manager | 2017    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Number of unexercised options (in shares) 1,130,916  
Options exercisable (in shares) 0  
Weighted average exercise price (in dollars per share) $ 14.09  
Intrinsic value of exercisable options $ 2.3  
Stock Options | Manager | 2018    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Number of unexercised options (in shares) 5,320,000  
Options exercisable (in shares) 2,996,715  
Weighted average exercise price (in dollars per share) $ 16.79  
Intrinsic value of exercisable options $ 0.0  
Stock Options | Manager | 2019    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Number of unexercised options (in shares) 6,351,000  
Options exercisable (in shares) 1,787,500  
Weighted average exercise price (in dollars per share) $ 16.35  
Intrinsic value of exercisable options $ 0.0