Schedule of Income Tax Provision (Benefit) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Components Of Income Tax Expense Benefit Continuing Operations Abstract
Current: Federal	$ 0.7	$ 0.6	$ 2.2
Current: State	(0.3)	(1.1)	0.2
Current: Foreign	9.4	6.7	8.1
Total Current	9.8	6.2	10.5
Deferred: Federal	18.6	26.6	(4.6)
Deferred: State	(0.9)	47.1	(40.4)
Deferred: Foreign	(0.7)	(2.2)	6.0
Total Deferred	17.0	71.5	(39.0)
Income tax provision (benefit)	$ 26.8	$ 77.7	$ (28.5)