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Earnings Per Share - Summary of Weighted-Average Shares Outstanding (Details) - USD ($)
$ / shares in Units, $ in Millions
 12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Earnings Per Share [Abstract]      
Net Income (Loss) $ 41.3 $ (101.6) $ (21.8)
Determination of shares:      
Weighted-average number of common shares outstanding 92,100,000 95,600,000 95,300,000
Shares issuable on exercise of stock awards, net of shares assumed to be purchased out of proceeds at average market price 1,900,000 0 0
Average common shares outstanding for fully diluted computation [1] 94,000,000 95,600,000 95,300,000
Per share:      
Basic income (loss) per share $ 0.45 $ (1.06) $ (0.23)
Diluted income (loss) per share $ 0.44 $ (1.06) $ (0.23)
Shares outstanding as of December 31, 90,136,133 92,881,008 94,900,000
[1] Due to the net loss during the twelve months ended December 31, 2024 and 2023, diluted earnings per share are the same as basic earnings per share.