v3.26.3
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 9 Months Ended
Sep. 30, 2026
Sep. 30, 2025
Sep. 30, 2026
Sep. 30, 2025
Numerator:        
Income (loss) from continuing operations $ 54.7 $ (18.9) $ 97.4 $ 319.5
Income from discontinued operations, net of tax 975.9 127.3 6,736.3 604.7
Net income 1,030.6 108.4 6,833.7 924.2
Dividends on Series A convertible preferred stock 0.0 (17.3) (1.7) (51.3)
Deemed dividend and related adjustments on redemption of Series A convertible preferred stock 0.1 0.0 (11.8) 0.0
Net income attributable to common stockholders $ 1,030.7 $ 91.1 $ 6,820.2 $ 872.9
Denominator:        
Weighted average common shares outstanding - basic 224.7 221.5 225.7 218.7
Dilutive effect of equity-based awards 2.2 0.0 5.6 10.2
Dilutive effect of as-if converted Series A convertible preferred stock 0.0 0.0 0.0 45.2
Weighted average common shares outstanding - diluted 226.9 221.5 231.3 274.1
Basic:        
Earnings (loss) from continuing operations per share $ 0.24 $ (0.16) $ 0.37 $ 1.23
Earnings from discontinued operations per share 4.35 0.57 29.85 2.76
Earnings per share 4.59 0.41 30.22 3.99
Diluted:        
Earnings (loss) from continuing operations per share 0.24 (0.16) 0.36 1.17
Earnings from discontinued operations per share 4.3 0.57 29.12 2.2
Earnings per share $ 4.54 $ 0.41 $ 29.48 $ 3.37