Comprehensive Income - Summary of the Tax Effects Allocated to Each Component of Other Comprehensive Income (Loss) (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Accumulated Other Comprehensive Income (Loss)
Pre-Tax	$ 10.1	$ 30.2
Tax (Expense) Benefit	(3.8)	(2.8)
Other comprehensive income, net of tax	6.3	27.4
Foreign currency translation gain
Accumulated Other Comprehensive Income (Loss)
Pre-Tax	9.3	29.5
Tax (Expense) Benefit	(3.7)	(2.7)
Other comprehensive income, net of tax	5.6	26.8
Change in net realized and unrealized gain (loss) on derivative financial instruments
Accumulated Other Comprehensive Income (Loss)
Pre-Tax	0.3	0.2
Tax (Expense) Benefit	0.0	0.0
Other comprehensive income, net of tax	0.3	0.2
Change in net unrealized gain (loss) on available-for-sale debt securities
Accumulated Other Comprehensive Income (Loss)
Pre-Tax	0.5	0.5
Tax (Expense) Benefit	(0.1)	(0.1)
Other comprehensive income, net of tax	$ 0.4	$ 0.4