Quarterly report pursuant to Section 13 or 15(d)

SHAREHOLDERS' EQUITY (Details)

v3.21.1
SHAREHOLDERS' EQUITY (Details)
$ / shares in Units, $ in Thousands
 3 Months Ended
Mar. 31, 2021
USD ($)
$ / shares
Rate
shares
Mar. 31, 2020
USD ($)
$ / shares
Dec. 31, 2020
shares
Class of Stock [Line Items]      
Preferred Stock, Liquidation Preference Per Share | $ / shares $ 1,000    
Preferred Stock, Shares Outstanding | shares 1,250,500   750,500
Preferred Stock, Value, Outstanding $ 2,676,000    
Dividends, Preferred Stock, Cash (31,000) $ (18,000)  
Retained Earnings [Member]      
Class of Stock [Line Items]      
Dividends, Preferred Stock, Cash $ (31,000) $ (18,000)  
Series B Preferred Stock      
Class of Stock [Line Items]      
Depository Share, Percent Interest in Preferred Stock 0.025    
Preferred Stock, Shares Outstanding | shares 35,500    
Preferred Stock, Value, Outstanding $ 23,000    
Preferred Stock, Redemption Date Jan. 15, 2017    
Preferred Stock, Dividends Per Share, Declared | $ / shares $ 7.35 $ 11.33  
Series B Preferred Stock | Retained Earnings [Member]      
Class of Stock [Line Items]      
Dividends, Preferred Stock, Cash $ 0 $ (1,000)  
Series C Preferred Stock      
Class of Stock [Line Items]      
Preferred Stock, Shares Outstanding | shares 100,000    
Preferred Stock, Value, Outstanding $ 100,000    
Preferred Stock, Redemption Date Oct. 15, 2021    
Preferred Stock, Dividend Rate, Percentage | Rate 5.875%    
Preferred Stock, Dividends Per Share, Declared | $ / shares $ 14.69 $ 14.69  
Series C Preferred Stock | Retained Earnings [Member]      
Class of Stock [Line Items]      
Dividends, Preferred Stock, Cash $ (2,000) $ (1,000)  
Series E Preferred Stock      
Class of Stock [Line Items]      
Preferred Stock, Shares Outstanding | shares 5,000    
Preferred Stock, Value, Outstanding $ 495,000    
Preferred Stock, Redemption Date Apr. 15, 2023    
Preferred Stock, Dividend Rate, Percentage | Rate 5.70%    
Preferred Stock, Dividends Per Share, Declared | $ / shares $ 1,425.00 $ 1,425.00  
Series E Preferred Stock | Retained Earnings [Member]      
Class of Stock [Line Items]      
Dividends, Preferred Stock, Cash $ (7,000) $ (7,000)  
Series D Preferred Stock      
Class of Stock [Line Items]      
Preferred Stock, Shares Outstanding | shares 400,000    
Preferred Stock, Value, Outstanding $ 386,000    
Preferred Stock, Redemption Date Apr. 15, 2021    
Preferred Stock, Dividend Rate, Percentage | Rate 6.25%    
Preferred Stock, Dividends Per Share, Declared | $ / shares $ 15.63 $ 15.63  
Series D Preferred Stock | Retained Earnings [Member]      
Class of Stock [Line Items]      
Dividends, Preferred Stock, Cash $ (9,000) $ (9,000)  
Series D Preferred Stock2 [Member]      
Class of Stock [Line Items]      
Preferred Stock, Shares Outstanding | shares 200,000    
Preferred Stock, Value, Outstanding $ 199,000    
Preferred Stock, Redemption Date Apr. 15, 2021    
Preferred Stock, Dividend Rate, Percentage | Rate 6.25%    
Series F Preferred Stock      
Class of Stock [Line Items]      
Preferred Stock, Shares Outstanding | shares 5,000    
Preferred Stock, Value, Outstanding $ 494,000    
Preferred Stock, Redemption Date Jul. 15, 2030    
Preferred Stock, Dividend Rate, Percentage | Rate 5.625%    
Preferred Stock, Liquidation Preference, Value $ 100    
Preferred Stock, Dividends Per Share, Declared | $ / shares $ 1,406.25 $ 0  
Series F Preferred Stock | Retained Earnings [Member]      
Class of Stock [Line Items]      
Dividends, Preferred Stock, Cash $ (7,000) $ 0  
Series G Preferred Stock      
Class of Stock [Line Items]      
Preferred Stock, Shares Outstanding | shares 5,000    
Preferred Stock, Value, Outstanding $ 494,000    
Preferred Stock, Redemption Date Oct. 15, 2027    
Preferred Stock, Dividend Rate, Percentage | Rate 4.45%    
Preferred Stock, Dividends Per Share, Declared | $ / shares $ 1,112.50 $ 0  
Series G Preferred Stock | Retained Earnings [Member]      
Class of Stock [Line Items]      
Dividends, Preferred Stock, Cash $ (6,000) $ 0  
Series H Preferred Stock      
Class of Stock [Line Items]      
Preferred Stock, Shares Outstanding | shares 500,000    
Preferred Stock, Value, Outstanding $ 485,000    
Preferred Stock, Redemption Date Apr. 15, 2026    
Preferred Stock, Dividend Rate, Percentage | Rate 4.50%    
London Interbank Offered Rate (LIBOR) | Series B Preferred Stock      
Class of Stock [Line Items]      
Preferred Stock, Basis Spread On Variable Rate 2.70%