v3.25.2
CONSOLIDATED STATEMENTS OF CHANGES IN EQUITY (Unaudited) - USD ($)
$ in Millions
Total
Total Share- holders’ Equity
Common Shares Issued at Par Value
Capital Surplus
Retained Earnings
Accumulated Other Comprehensive Loss
Non-controlling Interest
Balance, beginning of period at Dec. 31, 2023 $ 1,360.3 $ 1,357.8 $ 56.9 $ 398.2 $ 960.7 $ (58.0) $ 2.5
Increase (Decrease) in Stockholders' Equity [Roll Forward]              
Net income 64.8 64.8     64.8    
Cash dividends (11.7) (11.7)     (11.7)    
Exercise of stock options, net of shares reacquired 2.5 2.5 0.1 2.4      
Impact from settlement of share-based awards, net of shares acquired (11.0) (11.0) 0.1 (11.1)      
Impact from settlement of liability PRSUs (Note 1) 6.1 6.1   6.1      
Stock-based compensation expense 5.4 5.4   5.4      
Changes in pension and postretirement plan assets and benefit obligation, net of tax 3.0 3.0       3.0  
Changes in pension and postretirement plan assets and benefit obligation, net of tax (12.4) (12.3)       (12.3) (0.1)
Balance, end of period at Mar. 31, 2024 $ 1,407.0 1,404.6 57.1 401.0 1,013.8 (67.3) 2.4
Increase (Decrease) in Stockholders' Equity [Roll Forward]              
Dividends per share (in dollars per share) $ 0.205            
Balance, beginning of period at Dec. 31, 2023 $ 1,360.3 1,357.8 56.9 398.2 960.7 (58.0) 2.5
Increase (Decrease) in Stockholders' Equity [Roll Forward]              
Changes in pension and postretirement plan assets and benefit obligation, net of tax 6.0            
Changes in pension and postretirement plan assets and benefit obligation, net of tax (15.7)            
Balance, end of period at Jun. 30, 2024 $ 1,475.7 1,473.3 57.2 410.0 1,073.7 (67.6) 2.4
Increase (Decrease) in Stockholders' Equity [Roll Forward]              
Dividends per share (in dollars per share) $ 0.41            
Balance, beginning of period at Mar. 31, 2024 $ 1,407.0 1,404.6 57.1 401.0 1,013.8 (67.3) 2.4
Increase (Decrease) in Stockholders' Equity [Roll Forward]              
Net income 71.6 71.6     71.6    
Cash dividends (11.7) (11.7)     (11.7)    
Exercise of stock options, net of shares reacquired 3.6 3.6 0.1 3.5      
Impact from settlement of share-based awards, net of shares acquired (0.2) (0.2)   (0.2)      
Stock-based compensation expense 5.7 5.7   5.7      
Changes in pension and postretirement plan assets and benefit obligation, net of tax 3.0 3.0       3.0  
Changes in pension and postretirement plan assets and benefit obligation, net of tax (3.3) (3.3)       (3.3)  
Balance, end of period at Jun. 30, 2024 $ 1,475.7 1,473.3 57.2 410.0 1,073.7 (67.6) 2.4
Increase (Decrease) in Stockholders' Equity [Roll Forward]              
Dividends per share (in dollars per share) $ 0.205            
Balance, beginning of period at Dec. 31, 2024 $ 1,641.0 1,638.7 57.3 425.5 1,217.8 (61.9) 2.3
Increase (Decrease) in Stockholders' Equity [Roll Forward]              
Net income 107.1 107.1     107.1    
Cash dividends (13.2) (13.2)     (13.2)    
Exercise of stock options, net of shares reacquired 4.1 4.1 0.1 4.0      
Impact from settlement of share-based awards, net of shares acquired (14.5) (14.5) 0.1 (14.6)      
Impact from settlement of liability PRSUs (Note 1) 5.7 5.7   5.7      
Stock-based compensation expense 8.0 8.0   8.0      
Changes in pension and postretirement plan assets and benefit obligation, net of tax 2.7 2.7       2.7  
Changes in pension and postretirement plan assets and benefit obligation, net of tax 18.3 18.3       18.3  
Balance, end of period at Mar. 31, 2025 $ 1,759.2 1,756.9 57.5 428.6 1,311.7 (40.9) 2.3
Increase (Decrease) in Stockholders' Equity [Roll Forward]              
Dividends per share (in dollars per share) $ 0.23            
Balance, beginning of period at Dec. 31, 2024 $ 1,641.0 1,638.7 57.3 425.5 1,217.8 (61.9) 2.3
Increase (Decrease) in Stockholders' Equity [Roll Forward]              
Changes in pension and postretirement plan assets and benefit obligation, net of tax 5.4            
Changes in pension and postretirement plan assets and benefit obligation, net of tax 60.0            
Balance, end of period at Jun. 30, 2025 $ 1,888.6 1,886.3 57.5 440.4 1,384.9 3.5 2.3
Increase (Decrease) in Stockholders' Equity [Roll Forward]              
Dividends per share (in dollars per share) $ 0.46            
Balance, beginning of period at Mar. 31, 2025 $ 1,759.2 1,756.9 57.5 428.6 1,311.7 (40.9) 2.3
Increase (Decrease) in Stockholders' Equity [Roll Forward]              
Net income 86.4 86.4     86.4    
Cash dividends (13.2) (13.2)     (13.2)    
Exercise of stock options, net of shares reacquired 1.7 1.7 0.0 1.7      
Impact from settlement of share-based awards, net of shares acquired (0.2) (0.2)   (0.2)      
Stock-based compensation expense 10.3 10.3   10.3      
Changes in pension and postretirement plan assets and benefit obligation, net of tax 2.7 2.7       2.7  
Changes in pension and postretirement plan assets and benefit obligation, net of tax 41.7 41.7       41.7 0.0
Balance, end of period at Jun. 30, 2025 $ 1,888.6 $ 1,886.3 $ 57.5 $ 440.4 $ 1,384.9 $ 3.5 $ 2.3
Increase (Decrease) in Stockholders' Equity [Roll Forward]              
Dividends per share (in dollars per share) $ 0.23