Income Taxes - Significant Components of the Company's Net Deferred Tax Assets and Liabilities (Details) - USD ($) $ in Millions	Dec. 31, 2022	Dec. 31, 2021
Deferred income tax assets:
Postretirement benefit obligation	$ 0.4	$ 0.5
Inventory	12.8	8.4
Net operating loss and credit carryforwards	17.8	15.4
Operating lease liabilities	13.3	14.1
Compensation	2.3	3.4
Capitalized research and development expenditures	10.8	0.0
Disallowed interest	7.9	4.9
Other	4.2	5.1
Total deferred income tax assets	69.5	51.8
Deferred income tax liabilities:
Depreciation	19.3	20.6
Pension	14.1	18.8
Intangible assets	16.2	17.3
Lease right-of-use assets	13.3	14.0
Other	3.1	2.0
Total deferred income tax liabilities	66.0	72.7
Net deferred income tax assets (liabilities) prior to valuation allowances	3.5	(20.9)
Valuation allowances	(8.6)	(6.1)
Net deferred income tax liability	$ (5.1)	$ (27.0)