Nature of Operations and Significant Accounting Policies (Schedule of Accumulated Other Comprehensive Loss) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance	$ 964.0	$ 783.8	$ 763.8
Other comprehensive loss before reclassifications	(50.9)	14.9	(58.3)
Amounts reclassified from accumulated other comprehensive income (loss)	(3.1)	(2.0)	(0.9)
Other comprehensive (loss) income, net of tax	(54.0)	12.9	(59.2)
Ending balance	1,064.9	964.0	783.8
Tax (detriment) benefit	1.3	1.5	2.1
Total
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance	(118.6)	(131.5)	(72.3)
Ending balance	(172.6)	(118.6)	(131.5)
Defined Benefit Pension and Other Postretirement Items
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance	3.8	9.0	(1.0)
Other comprehensive loss before reclassifications	0.0	(3.2)	10.9
Amounts reclassified from accumulated other comprehensive income (loss)	(3.1)	(2.0)	(0.9)
Other comprehensive (loss) income, net of tax	(3.1)	(5.2)	10.0
Ending balance	0.7	3.8	9.0
Currency Translation Adjustment
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance	(122.4)	(140.5)	(71.3)
Other comprehensive loss before reclassifications	(50.9)	18.1	(69.2)
Amounts reclassified from accumulated other comprehensive income (loss)	0.0	0.0	0.0
Other comprehensive (loss) income, net of tax	(50.9)	18.1	(69.2)
Ending balance	$ (173.3)	$ (122.4)	$ (140.5)