Derivative Financial Instruments and Fair Value Measurements - Impact of Changes in Fair Values of Derivatives Designated as Cash Flow Hedges on OCI, AOCI and Earnings (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2025	Sep. 30, 2024
Derivative [Line Items]
Gain (Loss) Reclassified from AOCL into Income	$ 0.1	$ 0.1	$ 0.3	$ 0.3
Gain (Loss) Recognized in Income	0.1	0.1	0.3	0.3
Cross-currency swap | Cash flow hedge | Nondesignated [Member]
Derivative [Line Items]
Gain (Loss) Recognized in OCI	0.0	(2.6)	(0.2)	(2.1)
Gain (Loss) Reclassified from AOCL into Income	0.0	7.4	2.0	(4.5)
Gain (Loss) Recognized in Income	0.0	7.4	2.0	(4.5)
Cross-currency swap | Net Investment Hedging [Member] | Designated as hedging instrument
Derivative [Line Items]
Gain (Loss) Recognized in OCI	(80.9)	26.8	(13.5)	(1.9)
Intercompany CHF note [Member] | Cash flow hedge | Nondesignated [Member]
Derivative [Line Items]
Gain (Loss) Recognized in OCI	0.0	0.0	0.0	0.0
Gain (Loss) Reclassified from AOCL into Income	0.0	(7.4)	(2.0)	4.5
Gain (Loss) Recognized in Income	0.0	(7.4)	(2.0)	4.5
Forward Starting Interest Swap | Cash flow hedge | Designated as hedging instrument
Derivative [Line Items]
Gain (Loss) Recognized in OCI	$ 0.0	$ 0.0	$ 0.0	$ 0.0