Quarterly report pursuant to Section 13 or 15(d)

EQUITY AND EARNINGS PER SHARE - Narrative (Details)

v3.21.2
EQUITY AND EARNINGS PER SHARE - Narrative (Details) - USD ($)
$ / shares in Units, $ in Millions
1 Months Ended 3 Months Ended 9 Months Ended 12 Months Ended
Sep. 22, 2021
Sep. 14, 2021
May 19, 2021
Apr. 16, 2021
Apr. 14, 2021
May 19, 2020
Feb. 14, 2020
Feb. 29, 2020
Aug. 31, 2019
Jul. 31, 2019
Sep. 30, 2021
Sep. 30, 2020
Jun. 30, 2020
Sep. 30, 2021
Sep. 30, 2020
Dec. 31, 2020
Feb. 16, 2021
Share-based Payment Arrangement, Option, Exercise Price Range [Line Items]                                  
Number of shares issued (in shares)                           52,210,000   33,610,000  
Preferred stock, par values (in dollars per share)                     $ 0.01     $ 0.01   $ 0.01  
Liquidation preference per share (in dollars per share)                       $ 25.00     $ 25.00    
Options exercised (in shares) 1,600,000     6,725,000     2,100,000             0      
Authorized repurchase amount                                 $ 200.0
Shares issued, price per share (in dollars per share)   $ 10.89     $ 10.10                        
Options granted (in shares)                           7,032,500      
Common stock, par value (in dollars per share)           $ 0.01         $ 0.01     $ 0.01   $ 0.01  
Preferred stock, shares authorized (in shares)                     100,000,000     100,000,000   100,000,000  
Dividends declared on preferred stock (in dollars per share)                     $ 1.60 1.32   $ 4.23 3.95    
Common stock, shares outstanding (in shares)                     466,579,920     466,579,920   414,744,518  
Fair value of warrants                         $ 53.5        
Share price (in dollars per share)                     $ 11.00     $ 11.00      
Fortress-managed funds                                  
Share-based Payment Arrangement, Option, Exercise Price Range [Line Items]                                  
Common stock, shares outstanding (in shares)                     2,400,000     2,400,000      
Underwritten Public Option                                  
Share-based Payment Arrangement, Option, Exercise Price Range [Line Items]                                  
Number of shares issued (in shares)         45,000,000   14,000,000                    
Shares issued, price per share (in dollars per share)         $ 10.10                        
Over-Allotment Option                                  
Share-based Payment Arrangement, Option, Exercise Price Range [Line Items]                                  
Number of shares issued (in shares)   2,550,000     6,750,000                        
Shares issued, price per share (in dollars per share)   $ 24.2125     $ 10.10                        
Distribution Agreement | Common Stock                                  
Share-based Payment Arrangement, Option, Exercise Price Range [Line Items]                                  
Number of shares issued (in shares)                     0            
Net proceeds from liquidation     $ 500.0                            
Share-based Payment Arrangement, Nonemployee                                  
Share-based Payment Arrangement, Option, Exercise Price Range [Line Items]                                  
Options granted (in shares)   1,900,000     5,200,000                        
Share-based Payment Arrangement, Nonemployee | Stock options and common stock purchase warrants                                  
Share-based Payment Arrangement, Option, Exercise Price Range [Line Items]                                  
Options granted (in shares)           43,400,000                      
Exercise price range, lower range limit (in dollars per share)                         $ 6.11        
Exercise price range, upper range limit (in dollars per share)                         $ 7.94        
Expected term (in years)                         3 years        
Risk free interest rate                         0.24%        
Expected volatility rate                         35.00%        
Share-based Payment Arrangement, Nonemployee | Stock options and common stock purchase warrants | Exercise Price One                                  
Share-based Payment Arrangement, Option, Exercise Price Range [Line Items]                                  
Shares exercisable (in shares)                         24,600,000        
Exercise price (in dollars per share)                         $ 6.11        
Share-based Payment Arrangement, Nonemployee | Stock options and common stock purchase warrants | Exercise Price Two                                  
Share-based Payment Arrangement, Option, Exercise Price Range [Line Items]                                  
Shares exercisable (in shares)                         18,900,000        
Exercise price (in dollars per share)                         $ 7.94        
6.375% Series C Preferred Stock                                  
Share-based Payment Arrangement, Option, Exercise Price Range [Line Items]                                  
Number of shares issued (in shares)                           16,100,000   16,100,000  
Interest rate             6.375% 6.375%                  
Preferred stock, par values (in dollars per share)             $ 0.01                    
Liquidation preference per share (in dollars per share)             $ 25.00                    
Net proceeds from liquidation             $ 389.5                    
Dividends declared on preferred stock (in dollars per share) $ 0.40                   $ 0.40 0.40   $ 1.20 1.20    
Preferred dividends $ 6.4                                
6.375% Series C Preferred Stock | Over-Allotment Option                                  
Share-based Payment Arrangement, Option, Exercise Price Range [Line Items]                                  
Number of shares issued (in shares)             1,600,000                    
6.375% Series C Preferred Stock | Share-based Payment Arrangement, Nonemployee                                  
Share-based Payment Arrangement, Option, Exercise Price Range [Line Items]                                  
Fair value of options granted to Manager             $ 1.0                    
7.00% Fixed-Rate Reset Series D Cumulative Redeemable Preferred Stock                                  
Share-based Payment Arrangement, Option, Exercise Price Range [Line Items]                                  
Number of shares issued (in shares)                           18,600,000   0  
Interest rate   7.00%                              
Preferred stock, par values (in dollars per share)   $ 0.01                              
Liquidation preference per share (in dollars per share)   $ 25.00                              
Net proceeds from liquidation   $ 449.5                              
Dividends declared on preferred stock (in dollars per share) $ 0.28                   0.28 0   $ 0.28 0    
Preferred dividends $ 1.2                                
7.00% Fixed-Rate Reset Series D Cumulative Redeemable Preferred Stock | Underwritten Public Option                                  
Share-based Payment Arrangement, Option, Exercise Price Range [Line Items]                                  
Number of shares issued (in shares)   17,000,000                              
7.50% Series A Fixed-to-Floating Rate Cumulative Redeemable Preferred Stock                                  
Share-based Payment Arrangement, Option, Exercise Price Range [Line Items]                                  
Number of shares issued (in shares)                           6,210,000   6,210,000  
Interest rate                   7.50%              
Dividends declared on preferred stock (in dollars per share) $ 0.47                   0.47 0.47   $ 1.41 1.41    
Preferred dividends $ 2.9                                
7.125% Series B Fixed-to-Floating Rate Cumulative Redeemable Preferred Stock                                  
Share-based Payment Arrangement, Option, Exercise Price Range [Line Items]                                  
Number of shares issued (in shares)                           11,300,000   11,300,000  
Interest rate                 7.125%                
Dividends declared on preferred stock (in dollars per share) $ 0.45                   $ 0.45 $ 0.45   $ 1.34 $ 1.34    
Preferred dividends $ 5.0