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Earnings Per Share - Schedule of Net Income Per Share, Basic and Diluted (Details) - USD ($)
$ / shares in Units, shares in Thousands, $ in Millions
 3 Months Ended 6 Months Ended
Jun. 30, 2025
Jun. 30, 2024
Jun. 30, 2025
Jun. 30, 2024
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]        
Net income $ 22.5 $ 188.6 $ 57.9 $ 240.1
Add back interest expense, net of tax 0.0 2.5 0.0 4.9
Net income, diluted $ 22.5 $ 191.1 $ 57.9 $ 245.0
Weighted average number of common shares outstanding, basic (in shares) 70,389 70,062 70,330 70,010
Convertible Notes (in shares) 0 3,528 0 3,528
Weighted average number of common shares outstanding, diluted (in shares) 70,652 73,802 70,641 73,771
Earnings per share:        
Earnings per share - Basic (in dollars per share) $ 0.32 $ 2.69 $ 0.82 $ 3.43
Earnings per share - Diluted (in dollars per share) $ 0.32 $ 2.59 $ 0.82 $ 3.32
Restricted stock units        
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]        
Effect of dilutive securities (in shares) 159 72 195 77
Stock options        
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]        
Effect of dilutive securities (in shares) 104 140 115 157