v3.26.1
CONSOLIDATED STATEMENTS OF CHANGES IN SHAREHOLDERS' EQUITY (UNAUDITED) - USD ($)
$ in Millions
Total
Common stock
Additional paid-in capital
Retained earnings
Accumulated other comprehensive income (loss), net of tax:
Treasury stock, at cost
Beginning of period at Dec. 31, 2024   $ 0.1 $ 525.2 $ 1,548.2 $ (253.5) $ (532.5)
Increase (Decrease) in Stockholders' Equity            
Options exercised and conversion of common and restricted stock units     0.1      
Share-based compensation expense     5.1      
Net income $ 67.6     67.6    
Dividends, 2026, $0.36 per share; 2025, $0.35 per share       (29.3)    
Change in net unrealized investment losses on fixed maturity securities         47.5  
Change in net reserve remeasurements attributable to discount rates (11.1)       (11.1)  
Change in net funded status of benefit plans         0.0  
Treasury stock acquired - share repurchase authorization           (7.1)
End of period at Jun. 30, 2025 1,360.3 0.1 530.4 1,586.5 (217.1) (539.6)
Beginning of period at Mar. 31, 2025   0.1 526.1 1,571.7 (222.4) (532.7)
Increase (Decrease) in Stockholders' Equity            
Options exercised and conversion of common and restricted stock units     1.7      
Share-based compensation expense     2.6      
Net income 29.4     29.4    
Dividends, 2026, $0.36 per share; 2025, $0.35 per share       (14.6)    
Change in net unrealized investment losses on fixed maturity securities         4.6  
Change in net reserve remeasurements attributable to discount rates 0.7       0.7  
Change in net funded status of benefit plans         0.0  
Treasury stock acquired - share repurchase authorization           (6.9)
End of period at Jun. 30, 2025 1,360.3 0.1 530.4 1,586.5 (217.1) (539.6)
Beginning of period at Dec. 31, 2025 1,482.7 0.1 538.8 1,651.7 (154.6) (553.3)
Increase (Decrease) in Stockholders' Equity            
Options exercised and conversion of common and restricted stock units     0.6      
Share-based compensation expense     4.6      
Net income 82.8     82.8    
Dividends, 2026, $0.36 per share; 2025, $0.35 per share       (29.8)    
Change in net unrealized investment losses on fixed maturity securities         (36.4)  
Change in net reserve remeasurements attributable to discount rates 16.6       16.6  
Change in net funded status of benefit plans         0.0  
Treasury stock acquired - share repurchase authorization           (18.2)
End of period at Jun. 30, 2026 1,502.9 0.1 544.0 1,704.7 (174.4) (571.5)
Beginning of period at Mar. 31, 2026   0.1 538.7 1,678.0 (175.2) (571.6)
Increase (Decrease) in Stockholders' Equity            
Options exercised and conversion of common and restricted stock units     2.8      
Share-based compensation expense     2.5      
Net income 41.6     41.6    
Dividends, 2026, $0.36 per share; 2025, $0.35 per share       (14.9)    
Change in net unrealized investment losses on fixed maturity securities         6.9  
Change in net reserve remeasurements attributable to discount rates (6.1)       (6.1)  
Change in net funded status of benefit plans         0.0  
Treasury stock acquired - share repurchase authorization           0.1
End of period at Jun. 30, 2026 $ 1,502.9 $ 0.1 $ 544.0 $ 1,704.7 $ (174.4) $ (571.5)