Quarterly report pursuant to Section 13 or 15(d)

EQUITY AND EARNINGS PER SHARE - Narrative (Details)

v3.20.1
EQUITY AND EARNINGS PER SHARE - Narrative (Details) - USD ($)
$ / shares in Units, $ in Thousands
1 Months Ended 3 Months Ended 12 Months Ended
Mar. 23, 2020
Feb. 14, 2020
Aug. 15, 2019
Aug. 01, 2019
Jul. 02, 2019
Jul. 30, 2018
Aug. 31, 2019
Jul. 31, 2019
Feb. 28, 2019
Mar. 31, 2020
Mar. 31, 2019
Dec. 31, 2019
Dec. 31, 2018
Aug. 20, 2019
Share-based Payment Arrangement, Option, Exercise Price Range [Line Items]                            
Issuance of stock (in shares)                 46,000,000.0          
Shares issued, price per share (in dollars per share)                 $ 16.50          
Issuance of common stock                 $ 751,700 $ 1,655 $ 752,112      
Options granted (in shares)                   1,619,739        
Risk free interest rate     1.56%   1.91%                  
Expected dividend rate     11.20%   9.73%                  
Expected volatility rate     18.23%   17.95%                  
Expected term (in years)   10 years 10 years   10 years                  
Common stock, par value (in dollars per share)                   $ 0.01   $ 0.01    
Net proceeds from liquidation     $ 273,400   $ 150,000                  
Number of shares issued (in shares)     11,300,000   6,200,000         33,610,000        
Preferred stock, par values (in dollars per share)                   $ 0.01   $ 0.01    
Issuance of common stock                     $ 751,659      
Common stock, shares outstanding (in shares)                   415,649,214   415,520,780    
Authorized repurchase amount                           $ 200,000
Share price (in dollars per share)                   $ 5.01        
Diluted common stock equivalent, shares outstanding, adjustment (in shares)                   0 321,144      
Fortress-managed funds                            
Share-based Payment Arrangement, Option, Exercise Price Range [Line Items]                            
Common stock, shares outstanding (in shares)                   2,400,000        
Share-based Payment Arrangement, Nonemployee                            
Share-based Payment Arrangement, Option, Exercise Price Range [Line Items]                            
Options granted (in shares)                 4,600,000          
Stock issued for services, value (usd per share)                 $ 3,800,000          
Risk free interest rate                 2.40%          
Expected dividend rate                 9.30%          
Expected volatility rate                 19.26%          
Expected term (in years)                 10 years          
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            
Interest rate         7.50%     7.50%   7.50%   7.50%    
Preferred stock, par values (in dollars per share)         $ 0.01         $ 0.01   $ 0.01    
Liquidation preference per share (in dollars per share)         $ 25.00                  
Dividends declared on preferred stock (in dollars per share) $ 0.47                 $ 0.47        
Preferred dividends $ 2,900                          
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              
Interest rate     7.125%       7.125%     7.125%   7.125%    
Preferred stock, par values (in dollars per share)     $ 0.01             $ 0.01   $ 0.01    
Liquidation preference per share (in dollars per share)     $ 25.00                      
Dividends declared on preferred stock (in dollars per share) $ 0.45                 $ 0.45        
Preferred dividends $ 5,100                          
6.375% Series C Fixed-to-Floating Rate Cumulative Redeemable Preferred Stock                            
Share-based Payment Arrangement, Option, Exercise Price Range [Line Items]                            
Net proceeds from liquidation   $ 389,500                        
Number of shares issued (in shares)   16,100,000                        
Interest rate   6.375%               6.375%   6.375%    
Preferred stock, par values (in dollars per share)   $ 0.01               $ 0.01   $ 0.01    
Options granted to Manager (in shares)   1,600,000                        
Fair value of options granted to Manager   $ 1,000                        
Risk-free interest rate   1.55%                        
Dividend yield   9.00%                        
Volatility   17.39%                        
Dividends declared on preferred stock (in dollars per share) $ 0.40                          
Preferred dividends $ 6,400                          
Distribution Agreement                            
Share-based Payment Arrangement, Option, Exercise Price Range [Line Items]                            
Common stock, par value (in dollars per share)           $ 0.01                
Over-Allotment Option                            
Share-based Payment Arrangement, Option, Exercise Price Range [Line Items]                            
Number of shares issued (in shares)     1,100,000   600,000                  
Issuance of common stock     $ 700   $ 500                  
Common Stock                            
Share-based Payment Arrangement, Option, Exercise Price Range [Line Items]                            
Issuance of stock (in shares)                     46,000,000      
Issuance of common stock                     $ 460      
Common Stock | Distribution Agreement                            
Share-based Payment Arrangement, Option, Exercise Price Range [Line Items]                            
Options granted (in shares)                         10,000.00  
Net proceeds from liquidation       $ 500,000   $ 500,000             $ 1,600  
Number of shares issued (in shares)                   100,000        
Fair value of common stock at the offering prices                         $ 200