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CONDENSED CONSOLIDATED STATEMENTS OF STOCKHOLDERS’ EQUITY (UNAUDITED) - USD ($)
$ in Millions
Total
Common Stock
Additional Paid-in Capital
Accumulated Earnings
Accumulated Other Comprehensive Loss
Treasury Stock
Deferred Compensation
Beginning balance (in shares) at Dec. 31, 2023   69,907,000          
Balance at beginning of period at Dec. 31, 2023 $ 732.7 $ 0.1 $ 1,102.6 $ (378.0) $ 8.0    
Increase (Decrease) in Stockholders' Equity [Roll Forward]              
Net income 51.5     51.5      
Other comprehensive income (loss) , net of tax (8.5)       (8.5)    
Exercise of options to purchase common stock (in shares)   55,000          
Exercise of options to purchase common stock 5.8   5.8        
Stock-based compensation expense 14.2   14.2        
Restricted stock units vested, net of shares withheld for taxes (in shares)   58,000          
Restricted stock units vested, net of shares withheld for taxes (5.0)   (5.0)        
Ending balance (in shares) at Mar. 31, 2024   70,020,000          
Balance at the end of period at Mar. 31, 2024 $ 790.7 $ 0.1 1,117.6 (326.5) (0.5)    
Beginning balance (in shares) at Dec. 31, 2024 70,196,031 70,196,000          
Balance at beginning of period at Dec. 31, 2024 $ 1,211.6 $ 0.1 1,184.4 40.3 (13.2) $ 0.0 $ 0.0
Increase (Decrease) in Stockholders' Equity [Roll Forward]              
Net income 35.4     35.4      
Other comprehensive income (loss) , net of tax 7.2       7.2    
Exercise of options to purchase common stock (in shares)   38,000          
Exercise of options to purchase common stock 2.5   2.5        
Stock-based compensation expense 18.2   18.2   0.0    
Restricted stock units vested, net of shares withheld for taxes (in shares)   128,000          
Restricted stock units vested, net of shares withheld for taxes (21.2)   (21.2)        
Deferred compensation 0.0         (0.2) 0.2
Settlement of capped call options $ 77.0   77.0        
Ending balance (in shares) at Mar. 31, 2025 70,361,846 70,362,000          
Balance at the end of period at Mar. 31, 2025 $ 1,330.7 $ 0.1 $ 1,260.9 $ 75.7 $ (6.0) $ 0.2 $ 0.2