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Other Equity Matters (Details) - USD ($)
$ / shares in Units, $ in Thousands
 3 Months Ended 9 Months Ended
Sep. 30, 2023
Jun. 30, 2023
Mar. 31, 2023
Sep. 30, 2022
Jun. 30, 2022
Mar. 31, 2022
Sep. 30, 2023
Sep. 30, 2022
Dec. 31, 2022
Class of Stock [Line Items]                  
Treasury stock, value $ 0           $ 0   $ 1,077,559
Preferred stock, redemption price per share (in dollars per share) $ 25.00           $ 25.00    
Payment of capital distribution $ 407,600                
Preferred Shares                  
Class of Stock [Line Items]                  
Aggregate Payment 13,000     $ 13,000     $ 39,100 $ 39,100  
Cumulative unpaid preferred dividends $ 2,200           $ 2,200    
8.50% Series A Cumulative Redeemable Perpetual Preference Shares                  
Class of Stock [Line Items]                  
Per Share Payment (in dollars per share) $ 0.53     $ 0.53     $ 1.59 $ 1.59  
Aggregate Payment $ 1,800     $ 1,800     $ 5,400 $ 5,400  
8.00% Series B Cumulative Redeemable Perpetual Preference Shares                  
Class of Stock [Line Items]                  
Per Share Payment (in dollars per share) $ 0.50     $ 0.50     $ 1.50 $ 1.50  
Aggregate Payment $ 2,900     $ 2,900     $ 8,700 $ 8,700  
7.375% Series C Cumulative Redeemable Perpetual Preference Shares                  
Class of Stock [Line Items]                  
Per Share Payment (in dollars per share) $ 0.46     $ 0.46     $ 1.38 $ 1.38  
Aggregate Payment $ 3,200     $ 3,200     $ 9,600 $ 9,600  
6.875% Series D Cumulative Redeemable Perpetual Preference Shares                  
Class of Stock [Line Items]                  
Per Share Payment (in dollars per share) $ 0.43     $ 0.43     $ 1.29 $ 1.29  
Aggregate Payment $ 2,600     $ 2,600     $ 7,800 $ 7,800  
5.75% Series E Cumulative Redeemable Perpetual Preference Shares                  
Class of Stock [Line Items]                  
Per Share Payment (in dollars per share) $ 0.36     $ 0.36     $ 1.08 $ 1.08  
Aggregate Payment $ 2,500     $ 2,500     $ 7,600 $ 7,600  
Treasury Shares                  
Class of Stock [Line Items]                  
Treasury shares acquired, shares   140,000 1,744,616 3,200,340 1,832,240 1,257,374 1,884,616    
Share price (in dollars per share) $ 66.66           $ 66.66    
Treasury stock, value $ 125,600           $ 125,600    
Percentage acquired 100.00%           100.00%