Derivative Instruments and Fair Value Accounting FX Hedges (Details) - USD ($) $ in Millions		3 Months Ended
		Mar. 31, 2026	Mar. 31, 2025	Dec. 31, 2025	Dec. 31, 2024
Derivative [Line Items]
Equity, Including Portion Attributable to Noncontrolling Interest		$ 1,145.7	$ 1,299.7	$ 1,145.3	$ 1,307.2
Unrealized gains/(losses) on derivative financial instruments
Derivative [Line Items]
Equity, Including Portion Attributable to Noncontrolling Interest		2.4		$ (2.8)
Designated as Hedging Instrument [Member] | Foreign Exchange Contract [Member]
Derivative [Line Items]
Derivative Asset		2.7
Derivative Liability		0.0
Foreign Currency Cash Flow Hedge Gain (Loss) to be Reclassified During Next 12 Months	[1]	4.2
Designated as Hedging Instrument [Member] | Foreign Exchange Contract [Member] | Location, Statement of Income, Balance [Axis]: us-gaap:CostOfGoodsAndServicesSold
Derivative [Line Items]
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), before Reclassification and Tax		(3.0)	$ 4.7
Designated as Hedging Instrument [Member] | Foreign Exchange Contract [Member] | Unrealized gains/(losses) on derivative financial instruments
Derivative [Line Items]
Equity, Including Portion Attributable to Noncontrolling Interest		$ (4.2)

[1] Based on the fair value of open hedges as of March 31, 2026.