Earnings Per Share (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	3 Months Ended
	Mar. 31, 2026	Mar. 31, 2025
Earnings Per Share [Abstract]
NET INCOME	$ 205.4	$ 175.5
Basic weighted average common shares outstanding (in shares)	34.7	39.0
Dilutive effect of unvested RSUs (in shares)	0.4	0.4
Diluted weighted average common shares outstanding (in shares)	35.1	39.4
Basic EPS (in dollars per share)	$ 5.92	$ 4.50
Diluted EPS (in dollars per share)	$ 5.85	$ 4.45