Earnings Per Share - Summary of Basic and Diluted Earnings Per Share and Antidilutive Securities Excluded From Computation of Earnings Per Share (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Earnings Per Share [Abstract]
Income from continuing operations	$ 742.5	$ 865.1	$ 718.9
Less: Income allocated to participating securities	1.5	1.7	1.6
Income available to common stockholders	$ 741.0	$ 863.4	$ 717.3
Shares:
Basic weighted-average shares outstanding (in shares)	42.8	46.5	49.9
Effect of dilutive securities (in shares)	0.4	0.6	0.5
Diluted weighted-average shares outstanding (in shares)	43.2	47.1	50.4
Earnings per share from continuing operations attributable to common shares:
Basic (in dollars per share)	$ 17.31	$ 18.58	$ 14.38
Diluted (in dollars per share)	$ 17.16	$ 18.34	$ 14.22
Anti-dilutive stock options excluded from earnings per share calculation (in shares)	0.1	0.0	0.6