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Earnings Per Share ("EPS") (Details) - USD ($)
shares in Millions, $ in Millions
 3 Months Ended
Mar. 31, 2022
Mar. 31, 2021
Earnings Per Share, Diluted, by Common Class, Including Two Class Method [Line Items]    
Net loss available for common stockholders $ (0.1) $ (67.7)
Dividends 51.5 7.3
Net loss available for common stockholders, basic (5.6) (74.7)
Net loss available for common stockholders, diluted $ (5.6) $ (74.7)
Weighted average number of shares for basic EPS (shares) 152.0 144.8
Weighted average number of shares for diluted EPS (shares) 152.0 144.8
Series A Preferred Stock    
Earnings Per Share, Diluted, by Common Class, Including Two Class Method [Line Items]    
Dividends $ 5.4 $ 7.0
Noncontrolling Interest    
Earnings Per Share, Diluted, by Common Class, Including Two Class Method [Line Items]    
Dividends $ 0.1 $ 0.0
Series A Preferred Stock    
Earnings Per Share, Diluted, by Common Class, Including Two Class Method [Line Items]    
Antidilutive securities excluded from EPS calculation (shares) 19.1 25.0
Noncontrolling Interest    
Earnings Per Share, Diluted, by Common Class, Including Two Class Method [Line Items]    
Antidilutive securities excluded from EPS calculation (shares) 0.3 0.8
Stock compensation plan    
Earnings Per Share, Diluted, by Common Class, Including Two Class Method [Line Items]    
Antidilutive securities excluded from EPS calculation (shares) 1.1 1.9