v3.26.3
Condensed Consolidated Statements of Stockholders' Equity - USD ($)
$ in Millions
Total
Common stock
Additional paid-in capital
Retained earnings
Accumulated other comprehensive loss
Balance at beginning of period at Dec. 31, 2024   $ 11.5 $ 82.8 $ 3,613.5 $ (91.5)
Increase (Decrease) in Stockholders' Equity [Roll Forward]          
Purchases of common stock   0.0 0.0    
Stock options exercised   0.0 23.9    
Stock-based compensation     6.2    
Net income $ 964.4     964.4  
Cash dividends paid       (751.6)  
Other comprehensive (loss) income         35.3
Balance at end of period at Sep. 30, 2025 $ 3,894.5 11.5 112.9 3,826.3 (56.2)
Increase (Decrease) in Stockholders' Equity [Roll Forward]          
Cash dividends paid per share of common stock (in dollars per share) $ 0.655        
Balance at beginning of period at Dec. 31, 2024   11.5 82.8 3,613.5 (91.5)
Balance at end of period at Dec. 31, 2025 $ 3,943.6 11.5 115.5 3,867.7 (51.1)
Increase (Decrease) in Stockholders' Equity [Roll Forward]          
Cash dividends paid per share of common stock (in dollars per share) $ 0.875        
Balance at beginning of period at Jun. 30, 2025   11.5 104.2 3,743.3 (51.6)
Increase (Decrease) in Stockholders' Equity [Roll Forward]          
Purchases of common stock   0.0 0.0    
Stock options exercised   0.0 6.6    
Stock-based compensation     2.1    
Net income $ 335.5     335.5  
Cash dividends paid       (252.5)  
Other comprehensive (loss) income         (4.6)
Balance at end of period at Sep. 30, 2025 $ 3,894.5 11.5 112.9 3,826.3 (56.2)
Increase (Decrease) in Stockholders' Equity [Roll Forward]          
Cash dividends paid per share of common stock (in dollars per share) $ 0.220        
Balance at end of period at Dec. 31, 2025 $ 3,943.6 11.5 115.5 3,867.7 (51.1)
Increase (Decrease) in Stockholders' Equity [Roll Forward]          
Cash dividends paid per share of common stock (in dollars per share) $ 0.220        
Purchases of common stock   0.0 (80.8)    
Stock options exercised   0.0 17.5    
Stock-based compensation     7.8    
Net income $ 1,124.2     1,124.2  
Cash dividends paid       (849.1)  
Other comprehensive (loss) income         (13.9)
Balance at end of period at Sep. 30, 2026 $ 4,149.2 11.5 60.0 4,142.8 (65.0)
Increase (Decrease) in Stockholders' Equity [Roll Forward]          
Cash dividends paid per share of common stock (in dollars per share) $ 0.740        
Balance at beginning of period at Jun. 30, 2026   11.5 80.7 4,039.4 (62.7)
Increase (Decrease) in Stockholders' Equity [Roll Forward]          
Purchases of common stock   0.0 (30.5)    
Stock options exercised   0.0 7.2    
Stock-based compensation     2.6    
Net income $ 401.6     401.6  
Cash dividends paid       (298.2)  
Other comprehensive (loss) income         (2.2)
Balance at end of period at Sep. 30, 2026 $ 4,149.2 $ 11.5 $ 60.0 $ 4,142.8 $ (65.0)
Increase (Decrease) in Stockholders' Equity [Roll Forward]          
Cash dividends paid per share of common stock (in dollars per share) $ 0.260