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CONSOLIDATED STATEMENTS OF SHAREHOLDERS’ EQUITY - USD ($)
$ in Millions
Total
Preferred stock [Member]
Common stock [Member]
Additional paid-in capital [Member]
Treasury stock, at cost [Member]
Accumulated other comprehensive loss [Member]
Accumulated deficit [Member]
Balance, start at Dec. 31, 2020 $ 546.1 $ 0.0 $ 1.0 $ 2,530.0 $ (86.3) $ (118.8) $ (1,779.8)
Increase (Decrease) in Stockholders' Equity [Roll Forward]              
Net income (loss) (140.0)           (140.0)
Other comprehensive income (loss) 1.3         1.3  
Share-based compensation 0.9 0.0 0.0 0.9      
Conversion of preferred stock to common stock 0.0 0.0 0.0 0.0      
Balance, end at Mar. 31, 2021 408.3 0.0 1.0 2,530.9 (86.3) (117.5) (1,919.8)
Balance, start at Dec. 31, 2021 421.0 0.0 1.0 2,535.5 (86.3) (82.3) (1,946.9)
Increase (Decrease) in Stockholders' Equity [Roll Forward]              
Net income (loss) 17.7           17.7
Other comprehensive income (loss) 0.6         0.6  
Share-based compensation 0.5     0.5      
Balance, end at Mar. 31, 2022 $ 439.8 $ 0.0 $ 1.0 $ 2,536.0 $ (86.3) $ (81.7) $ (1,929.2)