Income Taxes - Significant Components of the Company's Net Deferred Tax Assets and Liabilities (Details) - USD ($) $ in Millions	Dec. 31, 2023	Dec. 31, 2022
Deferred income tax assets:
Postretirement benefit obligation	$ 0.3	$ 0.4
Inventory	13.0	12.8
Net operating loss and credit carryforwards	18.9	17.8
Operating lease liabilities	11.3	13.3
Compensation	3.7	2.3
Capitalized research and development expenditures	13.1	10.8
Disallowed interest	11.5	7.9
Other	4.1	4.2
Total deferred income tax assets	75.9	69.5
Deferred income tax liabilities:
Depreciation	15.7	19.3
Pension	17.0	14.1
Intangible assets	16.0	16.2
Lease right-of-use assets	11.3	13.3
Other	4.8	3.1
Total deferred income tax liabilities	64.8	66.0
Net deferred income tax assets prior to valuation allowances	11.1	3.5
Valuation allowances	(7.3)	(8.6)
Net deferred income tax asset	$ 3.8
Net deferred income tax liability		$ (5.1)