v3.26.3
Shareholders' Equity (Schedule of Preferred Shares) (Details) - USD ($)
$ in Thousands
 9 Months Ended
Sep. 30, 2026
Dec. 31, 2025
Class of Stock [Line Items]    
Preferred stock, shares outstanding (in shares) 189,238 174,000
Carrying Amount $ 4,719,878 $ 4,350,000
Series F    
Class of Stock [Line Items]    
Earliest Redemption Date Jun. 02, 2022  
Dividend Rate 5.15%  
Preferred stock, shares outstanding (in shares) 11,200 11,200
Carrying Amount $ 280,000 $ 280,000
Series G    
Class of Stock [Line Items]    
Earliest Redemption Date Aug. 09, 2022  
Dividend Rate 5.05%  
Preferred stock, shares outstanding (in shares) 12,000 12,000
Carrying Amount $ 300,000 $ 300,000
Series H    
Class of Stock [Line Items]    
Earliest Redemption Date Mar. 11, 2024  
Dividend Rate 5.60%  
Preferred stock, shares outstanding (in shares) 11,400 11,400
Carrying Amount $ 285,000 $ 285,000
Series I    
Class of Stock [Line Items]    
Earliest Redemption Date Sep. 12, 2024  
Dividend Rate 4.875%  
Preferred stock, shares outstanding (in shares) 12,650 12,650
Carrying Amount $ 316,250 $ 316,250
Series J    
Class of Stock [Line Items]    
Earliest Redemption Date Nov. 15, 2024  
Dividend Rate 4.70%  
Preferred stock, shares outstanding (in shares) 10,350 10,350
Carrying Amount $ 258,750 $ 258,750
Series K    
Class of Stock [Line Items]    
Earliest Redemption Date Dec. 20, 2024  
Dividend Rate 4.75%  
Preferred stock, shares outstanding (in shares) 9,200 9,200
Carrying Amount $ 230,000 $ 230,000
Series L    
Class of Stock [Line Items]    
Earliest Redemption Date Jun. 17, 2025  
Dividend Rate 4.625%  
Preferred stock, shares outstanding (in shares) 22,600 22,600
Carrying Amount $ 565,000 $ 565,000
Series M    
Class of Stock [Line Items]    
Earliest Redemption Date Aug. 14, 2025  
Dividend Rate 4.125%  
Preferred stock, shares outstanding (in shares) 9,200 9,200
Carrying Amount $ 230,000 $ 230,000
Series N    
Class of Stock [Line Items]    
Earliest Redemption Date Oct. 06, 2025  
Dividend Rate 3.875%  
Preferred stock, shares outstanding (in shares) 11,300 11,300
Carrying Amount $ 282,500 $ 282,500
Series O    
Class of Stock [Line Items]    
Earliest Redemption Date Nov. 17, 2025  
Dividend Rate 3.90%  
Preferred stock, shares outstanding (in shares) 6,800 6,800
Carrying Amount $ 170,000 $ 170,000
Series P    
Class of Stock [Line Items]    
Earliest Redemption Date Jun. 16, 2026  
Dividend Rate 4.00%  
Preferred stock, shares outstanding (in shares) 24,150 24,150
Carrying Amount $ 603,750 $ 603,750
Series Q    
Class of Stock [Line Items]    
Earliest Redemption Date Aug. 17, 2026  
Dividend Rate 3.95%  
Preferred stock, shares outstanding (in shares) 5,750 5,750
Carrying Amount $ 143,750 $ 143,750
Series R    
Class of Stock [Line Items]    
Earliest Redemption Date Nov. 19, 2026  
Dividend Rate 4.00%  
Preferred stock, shares outstanding (in shares) 17,400 17,400
Carrying Amount $ 435,000 $ 435,000
Series S    
Class of Stock [Line Items]    
Earliest Redemption Date Jan. 13, 2027  
Dividend Rate 4.10%  
Preferred stock, shares outstanding (in shares) 10,000 10,000
Carrying Amount $ 250,000 $ 250,000
Series T    
Class of Stock [Line Items]    
Earliest Redemption Date Jul. 22, 2026  
Dividend Rate 6.00%  
Preferred stock, shares outstanding (in shares) 9,570 0
Carrying Amount $ 216,272 $ 0
Series U    
Class of Stock [Line Items]    
Earliest Redemption Date Sep. 15, 2043  
Dividend Rate 6.00%  
Preferred stock, shares outstanding (in shares) 5,668 0
Carrying Amount $ 153,606 $ 0