Schedule II (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Valuation on Allowance for Deferred Tax Assets
Balance at Beginning of Period	$ 2.8	$ 9.8	$ 9.3
Charged to (Reduction of) Costs and Expenses	0.7	0.4	0.5
Taken Against Allowance	7.9	(7.3)	0.0
Other (Deductions) Recoveries	0.0	0.0	0.0
Balance at End of Period	11.4	2.8	9.8
Allowance for Credit Losses
Allowance for Credit Losses
Balance at Beginning of Period	1.0	1.2	1.7
Charged to (Reduction of) Costs and Expenses	0.4	0.2	0.4
Taken Against Allowance	0.0	(0.4)	(0.2)
Other (Deductions) Recoveries	(0.3)	0.0	(0.7)
Balance at End of Period	1.1	1.0	1.2
Inventory E&O Reserves
Allowance for Credit Losses
Balance at Beginning of Period	17.0	16.4	22.4
Charged to (Reduction of) Costs and Expenses	14.0	8.2	8.4
Taken Against Allowance	(5.1)	(4.6)	(7.4)
Other (Deductions) Recoveries	(3.9)	(3.0)	(7.0)
Balance at End of Period	$ 22.0	$ 17.0	$ 16.4