v3.26.1
Consolidated Statements of Stockholders' Equity - USD ($)
$ in Millions
Total
Common Stock
Additional Paid-in Capital
Accumulated Other Comprehensive (Loss) Income
Treasury Stock
Retained Earnings
Beginning balance (in shares) at Dec. 31, 2024   75,000,000.0        
Beginning balance at Dec. 31, 2024 $ 6,444.0 $ 0.8 $ 2,698.9 $ (3.4) $ (3,474.5) $ 7,222.2
Increase (Decrease) in Stockholders' Equity            
Net income 631.7         631.7
Other comprehensive income (loss), net of tax 3.4     3.4    
Restricted stock units (RSUs) withheld for taxes (15.5)   (15.5)      
Exercise of stock options (in shares)   300,000        
Exercise of stock options 34.7   34.7      
Share-based compensation 70.4   70.4      
Shares issued under employee stock purchase plan (ESPP) 4.9   4.9      
Common stock issued for RSUs vested (in shares)   100,000        
Ending balance (in shares) at Jun. 30, 2025   75,400,000        
Ending balance at Jun. 30, 2025 7,173.6 $ 0.8 2,793.4 0.0 (3,474.5) 7,853.9
Beginning balance (in shares) at Mar. 31, 2025   75,200,000        
Beginning balance at Mar. 31, 2025 6,807.2 $ 0.8 2,737.7 (1.2) (3,474.5) 7,544.4
Increase (Decrease) in Stockholders' Equity            
Net income 309.5         309.5
Other comprehensive income (loss), net of tax 1.2     1.2    
Restricted stock units (RSUs) withheld for taxes (0.2)   (0.2)      
Exercise of stock options (in shares)   200,000        
Exercise of stock options 18.1   18.1      
Share-based compensation 37.8   37.8      
Ending balance (in shares) at Jun. 30, 2025   75,400,000        
Ending balance at Jun. 30, 2025 $ 7,173.6 $ 0.8 2,793.4 0.0 (3,474.5) 7,853.9
Beginning balance (in shares) at Dec. 31, 2025 76,452,253 76,500,000        
Beginning balance at Dec. 31, 2025 $ 7,096.2 $ 0.8 2,798.0 0.9 (4,260.4) 8,556.9
Increase (Decrease) in Stockholders' Equity            
Net income 607.9         607.9
Other comprehensive income (loss), net of tax (17.1)     (17.1)    
Restricted stock units (RSUs) withheld for taxes (58.8)   (58.8)      
Share repurchase (1,500.0)   (120.9)   (1,379.1)  
Excise tax on net share repurchase (5.4)       (5.4)  
Exercise of stock options (in shares)   1,400,000        
Exercise of stock options 194.6   194.6      
Share-based compensation 77.3   77.3      
Shares issued under employee stock purchase plan (ESPP) $ 5.6   5.6      
Common stock issued for RSUs vested (in shares)   100,000        
Ending balance (in shares) at Jun. 30, 2026 78,029,318 78,000,000.0        
Ending balance at Jun. 30, 2026 $ 6,400.3 $ 0.8 2,895.8 (16.2) (5,644.9) 9,164.8
Beginning balance (in shares) at Mar. 31, 2026   77,100,000        
Beginning balance at Mar. 31, 2026 5,901.1 $ 0.8 2,520.3 (10.2) (5,441.6) 8,831.8
Increase (Decrease) in Stockholders' Equity            
Net income 333.0         333.0
Other comprehensive income (loss), net of tax (6.0)     (6.0)    
Restricted stock units (RSUs) withheld for taxes (0.5)   (0.5)      
Share repurchase 0.0   206.3   (206.3)  
Excise tax on net share repurchase 3.0       3.0  
Exercise of stock options (in shares)   900,000        
Exercise of stock options 126.3   126.3      
Share-based compensation $ 43.4   43.4      
Ending balance (in shares) at Jun. 30, 2026 78,029,318 78,000,000.0        
Ending balance at Jun. 30, 2026 $ 6,400.3 $ 0.8 $ 2,895.8 $ (16.2) $ (5,644.9) $ 9,164.8