Comprehensive Income (Loss) (Changes in AOCL) (Details) $ in Millions	6 Months Ended
	Jun. 30, 2025 USD ($)
Changes in AOCI by component (net of tax) [Roll Forward]
Beginning balance	$ 850.2
Other comprehensive income (loss) before reclassifications	37.5
Amounts reclassified from AOCL	(5.2)
Net other comprehensive income	32.3
Ending balance	900.5
Gains (Losses) on Cash Flow Hedges [Member]
Changes in AOCI by component (net of tax) [Roll Forward]
Beginning balance	(1.5)
Other comprehensive income (loss) before reclassifications	16.8
Amounts reclassified from AOCL	(4.6)
Net other comprehensive income	12.2
Ending balance	10.7
Share of Equity Method Investments Other Comprehensive Income
Changes in AOCI by component (net of tax) [Roll Forward]
Beginning balance	0.4
Other comprehensive income (loss) before reclassifications	0.0
Amounts reclassified from AOCL	0.0
Net other comprehensive income	0.0
Ending balance	0.4
Defined Benefit Pension Plan Items [Member]
Changes in AOCI by component (net of tax) [Roll Forward]
Beginning balance	(45.7)
Other comprehensive income (loss) before reclassifications	(0.7)
Amounts reclassified from AOCL	0.7
Net other comprehensive income	0.0
Ending balance	(45.7)
Accumulated Foreign Currency Adjustment Attributable to Parent [Member]
Changes in AOCI by component (net of tax) [Roll Forward]
Beginning balance	(46.9)
Other comprehensive income (loss) before reclassifications	21.4
Amounts reclassified from AOCL	(1.3)
Net other comprehensive income	20.1
Ending balance	(26.8)
Accumulated Other Comprehensive Loss
Changes in AOCI by component (net of tax) [Roll Forward]
Beginning balance	(93.7)
Ending balance	$ (61.4)