v3.26.1
Earnings Per Share - Computation of Basic and Diluted Earnings Per Share (Details) - USD ($)
$ / shares in Units, shares in Thousands, $ in Millions
 3 Months Ended
Mar. 31, 2026
Mar. 31, 2025
Earnings (loss) per share:    
Net income (loss) $ 45.0 $ (173.0)
Weighted average number of shares outstanding 52,200 51,700
Basic earnings per share from net income (loss) $ 0.86 $ (3.35)
Diluted earnings (loss) per share:    
Net income (loss) $ 45.0 $ (173.0)
Weighted Average Number of Shares Outstanding, Diluted, Adjustment [Abstract]    
Weighted average number of shares outstanding 52,200 51,700
Restricted stock 200 0
Total shares and dilutive securities 52,400 51,700
Diluted earnings per share from net income (loss) $ 0.86 $ (3.35)
Restricted stock shares with anti-dilutive effect excluded from the computation of diluted earnings per share 0 200