Derivative Instruments and Hedging Activities (Notional Value and Change in Fair Value of Net Investment Hedges) (Details) - Cross currency swap contract - Designated as Hedging Instrument - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023	Dec. 31, 2023
Derivative [Line Items]
Gain (Loss) Recognized in Accumulated Other Comprehensive Loss, Before-Tax Amount	$ 4.7	$ (1.0)
Gain (Loss) Recognized in Accumulated Other Comprehensive Loss, Income Tax Expense (Benefit)	1.2	(0.2)
Gain (Loss) Recognized in Accumulated Other Comprehensive Loss, After-Tax Amount	3.5	$ (0.8)
Net Investment Hedging
Derivative [Line Items]
Notional amount	$ 300.0		$ 300.0