Employee Benefit Plans (Schedule of Accumulated Other Comprehensive Income) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Accumulated Other Comprehensive Income (Loss), Pension and Other Postretirement Benefit Plans [Roll Forward]
Amortization	$ (1.3)	$ (2.5)	$ (5.3)
Net (loss) gain (before tax)
Accumulated Other Comprehensive Income (Loss), Pension and Other Postretirement Benefit Plans [Roll Forward]
Net (loss) gain (before tax) beginning balance	(26.8)
Amortization	1.3
Net actuarial loss	5.2
Foreign currency exchange rates change	(0.2)
Income tax change	0.0
Net (loss) gain (before tax) ending balance	(20.5)	(26.8)
Deferred income taxes
Accumulated Other Comprehensive Income (Loss), Pension and Other Postretirement Benefit Plans [Roll Forward]
Deferred income taxes beginning balance	8.4
Amortization	0.0
Net actuarial loss	0.0
Foreign currency exchange rates change	0.0
Income tax change	(1.5)
Deferred income taxes ending balance	6.9	8.4
Accumulated other comprehensive income (loss) (net of tax)
Accumulated Other Comprehensive Income (Loss), Pension and Other Postretirement Benefit Plans [Roll Forward]
Accumulated other comprehensive income (loss) net of tax beginning balance	(18.4)
Amortization	1.3
Net actuarial loss	5.2
Foreign currency exchange rates change	(0.2)
Income tax change	(1.5)
Accumulated other comprehensive income (loss) net of tax ending balance	$ (13.6)	$ (18.4)