Condensed Consolidated Statements of Comprehensive Income - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2025	Sep. 30, 2024
Statement of Comprehensive Income [Abstract]
Consolidated net income	$ 91.6	$ 119.7	$ 259.1	$ 253.0
Other comprehensive income (loss), net
Foreign currency translation adjustment	(10.7)	24.3	47.9	12.3
Unrealized gains (losses) on securities, net of tax
Unrealized gains (losses) on securities, net of tax	0.0	0.0	0.1	0.0
Other comprehensive income (loss), net	(10.7)	24.3	48.0	12.3
Comprehensive income	$ 80.9	$ 144.0	$ 307.1	$ 265.3