Earnings Per Share - Computation (Details) - USD ($) $ / shares in Units, $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2026	Sep. 30, 2025	Sep. 30, 2026	Sep. 30, 2025
Earnings Per Share [Abstract]
Income (loss) from continuing operations attributable to common share holders	$ 107.4	$ 47.0	$ 210.2	$ 106.0
Weighted-average shares outstanding - basic (in shares)	525,615,165	320,676,155	439,412,571	320,676,155
Effect of dilutive securities (in shares)	4,571,378	0	2,271,821	0
Weighted-average shares outstanding - diluted (in shares)	530,186,543	320,676,155	441,684,392	320,676,155
Earnings per share:
Net earnings per share - basic (in dollars per share)	$ 0.20	$ 0.15	$ 0.48	$ 0.33
Net earnings per share - diluted (in dollars per share)	$ 0.20	$ 0.15	$ 0.48	$ 0.33