v3.26.3
Consolidated Statements of Shareholders' Equity (Unaudited) - USD ($)
$ in Millions
Total
Parent
Preferred shares
Series B preference shares
Common shares
Additional paid-in capital
Retained earnings
Accumulated other comprehensive income (loss), net of tax
Change in foreign currency translation adjustment
Unrealized gains (losses) from debt securities held as available for sale investments
Noncontrolling interests
Balance, beginning of period at Dec. 31, 2024     $ 200.0 $ 11.6 $ 945.0 $ 784.9 $ (4.1) $ (3.0) $ (1.1)  
Increase (Decrease) in Stockholders' Equity [Roll Forward]                    
Redemption of preference shares     0.0              
Issuance of common shares, net       0.2 0.0          
Common shares repurchased and retired       (0.1) (7.7)          
Share compensation         19.5          
Exercise of options and warrants         0.6          
Net income           216.0        
Net (income) loss attributable to noncontrolling interests $ (0.4)         (0.4)        
Dividends on preference shares           (12.0)        
Change in foreign currency translation adjustment (0.1)             (0.1)    
Unrealized gains (losses) from debt securities held as available for sale investments 54.0               54.0  
Reclassifications from accumulated other comprehensive income (loss) 2.5               2.5  
Balance, end of period at Sep. 30, 2025 2,211.0 $ 2,209.9 200.0 11.7 957.4 988.5 52.3 (3.1) 55.4 $ 1.1
Balance, beginning of period at Jun. 30, 2025     200.0 11.7 945.8 901.7 46.5 0.2 46.3  
Increase (Decrease) in Stockholders' Equity [Roll Forward]                    
Redemption of preference shares     0.0              
Issuance of common shares, net       0.0 0.0          
Common shares repurchased and retired       0.0 0.0          
Share compensation         11.6          
Exercise of options and warrants         0.0          
Net income           90.7        
Net (income) loss attributable to noncontrolling interests 0.1         0.1        
Dividends on preference shares           (4.0)        
Change in foreign currency translation adjustment (3.3)             (3.3)    
Unrealized gains (losses) from debt securities held as available for sale investments 2.2               2.2  
Reclassifications from accumulated other comprehensive income (loss) 6.9               6.9  
Balance, end of period at Sep. 30, 2025 2,211.0 2,209.9 200.0 11.7 957.4 988.5 52.3 (3.1) 55.4 1.1
Balance, beginning of period at Dec. 31, 2025 2,470.9   200.0 11.7 967.7 1,228.5 61.9 (0.9) 62.8  
Increase (Decrease) in Stockholders' Equity [Roll Forward]                    
Redemption of preference shares     (200.0)              
Issuance of common shares, net       0.2 0.1          
Common shares repurchased and retired (100.6)     (0.4) (100.2)          
Share compensation         1.6          
Exercise of options and warrants         0.0          
Net income           257.8        
Net (income) loss attributable to noncontrolling interests (0.2)         (0.2)        
Dividends on preference shares           (2.6)        
Change in foreign currency translation adjustment (6.7)             (6.7)    
Unrealized gains (losses) from debt securities held as available for sale investments (190.0)               (190.0)  
Reclassifications from accumulated other comprehensive income (loss) (1.1)               (1.1)  
Balance, end of period at Sep. 30, 2026 2,229.4 2,228.3 0.0 11.5 869.2 1,483.5 (135.9) (7.6) (128.3) 1.1
Balance, beginning of period at Jun. 30, 2026     0.0 11.6 888.9 1,396.7 (21.3) (7.8) (13.5)  
Increase (Decrease) in Stockholders' Equity [Roll Forward]                    
Redemption of preference shares     0.0              
Issuance of common shares, net       0.0 0.0          
Common shares repurchased and retired (27.2)     (0.1) (27.1)          
Share compensation         7.4          
Exercise of options and warrants         0.0          
Net income           87.0        
Net (income) loss attributable to noncontrolling interests (0.2)         (0.2)        
Dividends on preference shares           0.0        
Change in foreign currency translation adjustment 0.2             0.2    
Unrealized gains (losses) from debt securities held as available for sale investments (104.9)               (104.9)  
Reclassifications from accumulated other comprehensive income (loss) (9.9)               (9.9)  
Balance, end of period at Sep. 30, 2026 $ 2,229.4 $ 2,228.3 $ 0.0 $ 11.5 $ 869.2 $ 1,483.5 $ (135.9) $ (7.6) $ (128.3) $ 1.1