v3.26.1
Consolidated Statements of Shareholders' Equity - USD ($)
$ in Millions
Total
Reclassification out of Accumulated Other Comprehensive Loss [Member]
Preferred Stock [Member]
Common Stock [Member]
Additional Paid-in Capital [Member]
Net Unrealized Appreciation (Depreciation) on Investments [Member]
Net Unrealized Appreciation (Depreciation) on Investments [Member]
Reclassification out of Accumulated Other Comprehensive Loss [Member]
Defined Benefit Pension and Postretirement Plans [Member]
Defined Benefit Pension and Postretirement Plans [Member]
Reclassification out of Accumulated Other Comprehensive Loss [Member]
Long Duration Insurance Contracts [Member]
Retained Earnings [Member]
Retained Earnings [Member]
Adjustment [Member]
Retained Earnings [Member]
Adjusted Balance [Member]
Accumulated Other Comprehensive Income (Loss), Net of Tax [Member]
Treasury Stock [Member]
Balance at beginning of period at Dec. 31, 2024     $ 0.0 $ 0.6 $ 1,973.6 $ (403.5)   $ (55.2)   $ 2.4 $ 3,209.6 $ 1.9 $ 3,211.5   $ (1,885.7)
Net income $ 285.3 $ (20.9)         $ (18.4)       285.3        
Shares purchased at cost                             (38.6)
Employee and director stock-based awards and other         20.3                    
Net appreciation (depreciation) on available-for-sale securities 167.5         167.5                  
Income from continuing operations 285.1               $ 2.7            
Net change in market risk (1.1)                 (1.1)          
Dividends to shareholders                     (65.6)        
Net shares reissued at cost under employee stock-based compensation plans and other                             2.1
Balance at end of period at Jun. 30, 2025 3,216.3       1,993.9 (236.0)   (52.5)   1.3 3,431.2     $ (287.2) (1,922.2)
Balance at beginning of period at Mar. 31, 2025     0.0 0.6 1,978.3 (292.3)   (53.8)   1.4 3,306.8 0.0 3,306.8   (1,896.6)
Net income 157.1 (5.1)         (3.8)       157.1        
Shares purchased at cost                             (27.6)
Employee and director stock-based awards and other         15.6                    
Net appreciation (depreciation) on available-for-sale securities 56.3         56.3                  
Income from continuing operations 156.9               1.3            
Net change in market risk (0.1)                 (0.1)          
Dividends to shareholders                     (32.7)        
Net shares reissued at cost under employee stock-based compensation plans and other                             2.0
Balance at end of period at Jun. 30, 2025 3,216.3       1,993.9 (236.0)   (52.5)   1.3 3,431.2     (287.2) (1,922.2)
Balance at beginning of period at Dec. 31, 2025 3,571.5   0.0 0.6 2,013.5 (116.3)   (54.3)   (0.8) 3,741.6 0.0 3,741.6   (2,012.8)
Net income 378.4 (12.5)         (10.2)       378.4        
Shares purchased at cost                             (142.9)
Employee and director stock-based awards and other         18.5                    
Net appreciation (depreciation) on available-for-sale securities (87.6)         (87.6)                  
Income from continuing operations 378.2               2.7            
Net change in market risk 0.6                 0.6          
Dividends to shareholders                     (67.5)        
Net shares reissued at cost under employee stock-based compensation plans and other                             (1.2)
Balance at end of period at Jun. 30, 2026 3,672.5       2,032.0 (203.9)   (51.6)   (0.2) 4,052.5     (255.7) (2,156.9)
Balance at beginning of period at Mar. 31, 2026     $ 0.0 $ 0.6 2,016.0 (185.2)   (52.9)   0.2 3,894.5 $ 0.0 $ 3,894.5   (2,102.8)
Net income 191.6 $ (6.4)         $ (5.3)       191.6        
Shares purchased at cost                             (55.4)
Employee and director stock-based awards and other         16.0                    
Net appreciation (depreciation) on available-for-sale securities (18.7)         (18.7)                  
Income from continuing operations 191.4               $ 1.3            
Net change in market risk (0.4)                 (0.4)          
Dividends to shareholders                     (33.6)        
Net shares reissued at cost under employee stock-based compensation plans and other                             1.3
Balance at end of period at Jun. 30, 2026 $ 3,672.5       $ 2,032.0 $ (203.9)   $ (51.6)   $ (0.2) $ 4,052.5     $ (255.7) $ (2,156.9)