Annual report pursuant to Section 13 and 15(d)

EQUITY AND EARNINGS PER SHARE - Schedule of Preferred Shares (Details)

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EQUITY AND EARNINGS PER SHARE - Schedule of Preferred Shares (Details) - USD ($)
$ / shares in Units, $ in Thousands
1 Months Ended 12 Months Ended
Dec. 16, 2020
Feb. 14, 2020
Aug. 15, 2019
Jul. 02, 2019
Feb. 29, 2020
Aug. 31, 2019
Jul. 31, 2019
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Class of Stock [Line Items]                    
Number of Common shares (in shares)               33,610,000 17,510,000  
Preferred stock, aggregate liquidation preference               $ 840,250 $ 437,750  
Carrying Value               $ 812,992    
Preferred stock, dividends (in dollars per share)               $ 5.26 $ 2.05 $ 0
Preferred stock, liquidation preference per share                 $ 25.00  
7.50% Series A Fixed-to-Floating Rate Cumulative Redeemable Preferred Stock                    
Class of Stock [Line Items]                    
Number of Common shares (in shares)       6,200,000       6,210,000 6,210,000  
Preferred stock, aggregate liquidation preference               $ 155,250 $ 155,250  
Issuance Discount               3.15%    
Carrying Value               $ 150,026    
Preferred stock, dividends (in dollars per share) $ 0.47             $ 1.88 $ 1.16 0
Dividend interest rate       7.50%     7.50%      
Preferred stock, liquidation preference per share       $ 25.00            
7.125% Series B Preferred Stock                    
Class of Stock [Line Items]                    
Number of Common shares (in shares)     11,300,000         11,300,000 11,300,000  
Preferred stock, aggregate liquidation preference               $ 282,500 $ 282,500  
Issuance Discount               3.15%    
Carrying Value               $ 273,418    
Preferred stock, dividends (in dollars per share) 0.45             $ 1.78 $ 0.89 0
Dividend interest rate     7.125%     7.125%        
Preferred stock, liquidation preference per share     $ 25.00              
6.375% Series C Preferred Stock                    
Class of Stock [Line Items]                    
Number of Common shares (in shares)   16,100,000           16,100,000 0  
Preferred stock, aggregate liquidation preference               $ 402,500 $ 0  
Issuance Discount               3.15%    
Carrying Value               $ 389,548    
Preferred stock, dividends (in dollars per share) $ 0.40             $ 1.60 $ 0 $ 0
Dividend interest rate   6.375%     6.375%          
Preferred stock, liquidation preference per share   $ 25.00