v3.26.1
Background and Basis of Presentation - Summary of Earnings Per Share, Weighted Average Common Shares and Potential Common Shares Outstanding (Detail) - USD ($)
$ / shares in Units, shares in Millions, $ in Millions
3 Months Ended 6 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
Numerator:        
Income from continuing operations $ 26.1 $ 5.9 $ 42.7 $ 338.4
Income from discontinued operations, net of tax 269.1 25.9 5,760.4 477.4
Net income 295.2 31.8 5,803.1 815.8
Dividends on Series A convertible preferred stock 0.0 (17.1) (1.7) (34.0)
Deemed dividend on redemption of Series A convertible preferred stock (11.9) 0.0 (11.9) 0.0
Net income attributable to common stockholders $ 283.3 $ 14.7 $ 5,789.5 $ 781.8
Denominator:        
Weighted average common shares outstanding - basic 227.0 218.1 226.2 217.2
Dilutive effect of equity-based awards 6.8 0.0 7.4 10.1
Dilutive effect of as-if converted Series A convertible preferred stock 0.0 0.0 0.0 45.0
Weighted average common shares outstanding - diluted 233.8 218.1 233.6 272.3
Basic:        
Earnings (loss) from continuing operations per share $ 0.06 $ (0.05) $ 0.13 $ 1.4
Earnings from discontinued operations per share 1.19 0.12 25.47 2.2
Earnings per share 1.25 0.07 25.6 3.6
Diluted:        
Earnings (loss) from continuing operations per share 0.06 (0.05) 0.12 1.24
Earnings from discontinued operations per share 1.15 0.12 24.67 1.76
Earnings per share $ 1.21 $ 0.07 $ 24.79 $ 3