v3.26.1
Consolidated Statements of Stockholders' Equity (unaudited) - USD ($)
$ in Millions
Total
Common Stock
Capital in Excess of Par Value
Retained Earnings
Accumulated Other Comprehensive Income (Loss)
Treasury Stock, Common
Beginning balance at Dec. 31, 2024 $ 2,428.2 $ 0.5 $ 1,696.5 $ 748.9 $ (17.7) $ 0.0
Beginning balance, shares at Dec. 31, 2024   48,800,000        
Beginning balance, treasury shares at Dec. 31, 2024           0
Increase (Decrease) in Stockholders' Equity [Roll Forward]            
Net income 83.3     83.3    
Other comprehensive income (loss) 0.9       0.9  
Dividends paid to common stockholders (5.0)     (5.0)    
Restricted shares, net - value 0.9   13.5     $ (12.6)
Restricted shares, net - shares   400,000       (100,000)
Retirement of treasury stock - value 0.0   (12.6)     $ (12.6)
Retirement of treasury stock - shares   (100,000)       (100,000)
Ending balance at Jun. 30, 2025 2,508.3 $ 0.5 1,697.4 827.2 (16.8) $ 0.0
Ending balance, shares at Jun. 30, 2025   49,100,000        
Ending balance, treasury shares at Jun. 30, 2025           0
Beginning balance at Mar. 31, 2025 2,454.5 $ 0.5 1,703.3 770.0 (17.7) $ (1.6)
Beginning balance, shares at Mar. 31, 2025   48,800,000        
Beginning balance, treasury shares at Mar. 31, 2025           0
Increase (Decrease) in Stockholders' Equity [Roll Forward]            
Net income 59.7     59.7    
Other comprehensive income (loss) 0.9       0.9  
Dividends paid to common stockholders (2.5)     (2.5)    
Restricted shares, net - value (4.3)   6.7     $ (11.0)
Restricted shares, net - shares   400,000       (100,000)
Retirement of treasury stock - value 0.0   (12.6)     $ (12.6)
Retirement of treasury stock - shares   (100,000)       (100,000)
Ending balance at Jun. 30, 2025 2,508.3 $ 0.5 1,697.4 827.2 (16.8) $ 0.0
Ending balance, shares at Jun. 30, 2025   49,100,000        
Ending balance, treasury shares at Jun. 30, 2025           0
Beginning balance at Dec. 31, 2025 2,641.4 $ 0.5 1,710.0 947.3 (16.4) $ 0.0
Beginning balance, shares at Dec. 31, 2025   49,000,000.0        
Beginning balance, treasury shares at Dec. 31, 2025           0
Increase (Decrease) in Stockholders' Equity [Roll Forward]            
Net income 366.3     366.3    
Other comprehensive income (loss) (0.7)       (0.7)  
Dividends paid to common stockholders (4.9)     (4.9)    
Restricted shares, net - value (1.3)   12.9     $ (14.2)
Restricted shares, net - shares   400,000       (100,000)
Shares repurchased - value $ (17.5)         $ (17.5)
Shares repurchased - shares (159,595)         (200,000)
Retirement of treasury stock - value $ 0.0   (31.7)     $ (31.7)
Retirement of treasury stock - shares   (300,000)       (300,000)
Ending balance at Jun. 30, 2026 2,983.3 [1] $ 0.5 1,691.2 1,308.7 (17.1) $ 0.0
Ending balance, shares at Jun. 30, 2026   49,100,000        
Ending balance, treasury shares at Jun. 30, 2026           0
Beginning balance at Mar. 31, 2026 2,652.7 $ 0.5 1,716.5 982.7 (16.8) $ (30.2)
Beginning balance, shares at Mar. 31, 2026   49,400,000        
Beginning balance, treasury shares at Mar. 31, 2026           300,000
Increase (Decrease) in Stockholders' Equity [Roll Forward]            
Net income 328.5     328.5    
Other comprehensive income (loss) (0.3)       (0.3)  
Dividends paid to common stockholders (2.5)     (2.5)    
Restricted shares, net - value 4.9   6.4     $ (1.5)
Restricted shares, net - shares   0       0
Retirement of treasury stock - value 0.0   (31.7)     $ (31.7)
Retirement of treasury stock - shares   (300,000)       (300,000)
Ending balance at Jun. 30, 2026 $ 2,983.3 [1] $ 0.5 $ 1,691.2 $ 1,308.7 $ (17.1) $ 0.0
Ending balance, shares at Jun. 30, 2026   49,100,000        
Ending balance, treasury shares at Jun. 30, 2026           0
Statement of Stockholders' Equity [Abstract]            
Common Stock, Par or Stated Value Per Share $ 0.01          
[1] (unaudited)