Net Income Per Share - Schedule of Repurchase of Common Stock (Details) - USD ($) $ / shares in Units, $ in Millions	3 Months Ended						9 Months Ended
	Sep. 30, 2025	Jun. 30, 2025	Mar. 31, 2025	Sep. 30, 2024	Jun. 30, 2024	Mar. 31, 2024	Sep. 30, 2025	Sep. 30, 2024
Earnings Per Share [Abstract]
Share purchased (in shares)	0			170,771			552,593	1,409,786
Total cost of repurchases ($ in millions)		$ 0.5	$ 133.5	$ 52.4	$ 187.1	$ 267.0	$ 134.0	$ 506.5
Average price per repurchased share (in dollars per share)				$ 306.34			$ 242.55	$ 359.24