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Equity (Narrative) (Details) - $ / shares
1 Months Ended 12 Months Ended
May 15, 2028
Jun. 30, 2021
Apr. 30, 2021
Dec. 31, 2021
Class of Stock [Line Items]        
Liquidation preference (in dollars per share)       $ 25
Series B Preferred Stock        
Class of Stock [Line Items]        
Number of shares issued     1,350,000 1,350,000
Dividend/coupon rate     4.70%  
Par value (in dollars per share)     $ 0.01 $ 0.01
Liquidation preference (in dollars per share)     $ 1,000 $ 1,000
Series B Preferred Stock, On And After May 15, 2026 | US Treasury (UST) Interest Rate        
Class of Stock [Line Items]        
Dividend/coupon rate     3.868% 3.868%
Series C Preferred Stock        
Class of Stock [Line Items]        
Number of shares issued   1,000,000   1,000,000
Dividend/coupon rate   4.70%    
Par value (in dollars per share)   $ 0.01   $ 0.01
Liquidation preference (in dollars per share)   $ 1,000   $ 1,000
Series C Preferred Stock, On And After May 15, 2028 | US Treasury (UST) Interest Rate        
Class of Stock [Line Items]        
Dividend/coupon rate       3.481%
Series C Preferred Stock, On And After May 15, 2028 | US Treasury (UST) Interest Rate | Subsequent event        
Class of Stock [Line Items]        
Dividend/coupon rate 3.481%