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(Loss) Earnings Per Common Share - Schedule of Basic and Diluted (Loss) Earnings per Common Share (Details) - USD ($)
$ / shares in Units, shares in Millions, $ in Millions
 3 Months Ended 6 Months Ended
Jun. 30, 2025
Jun. 30, 2024
Jun. 30, 2025
Jun. 30, 2024
Earnings Per Share [Abstract]        
Net (loss) income $ (61.2) $ (35.2) $ 21.7 $ (104.6)
Basic weighted average common shares outstanding (in shares) 73.0 71.9 72.8 71.7
Denominator adjustments for diluted EPS:        
Number of stock options and RSUs (in shares) 0.0 0.0 0.2 0.0
Denominator adjustments for diluted EPS (in shares) 0.0 0.0 0.2 0.0
Diluted weighted average common shares outstanding (in shares) 73.0 71.9 73.0 71.7
(Loss) earnings per common share        
Basic (in dollars per share) $ (0.84) $ (0.49) $ 0.30 $ (1.46)
Diluted (in dollars per share) $ (0.84) $ (0.49) $ 0.30 $ (1.46)