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Leases - Lease Assets and Liabilities (Details) - USD ($) $ in Millions | Dec. 31, 2023 | Dec. 31, 2022
--- | --- | ---
Leases [Abstract] |  |
Operating lease assets | $ 41.7 | $ 31.8
Finance Lease, Right-of-Use Asset, Statement of Financial Position [Extensible Enumeration] | Property, plant and equipment, less accumulated depreciation of $304.0 and $279.3, respectively | Property, plant and equipment, less accumulated depreciation of $304.0 and $279.3, respectively
Finance lease assets | $ 0.6 | $ 0.2
Total leased assets | $ 42.3 | $ 32.0
Operating Lease, Liability, Current, Statement of Financial Position [Extensible Enumeration] | Other current liabilities | Other current liabilities
Operating leases | $ 14.4 | $ 15.0
Finance Lease, Liability, Current, Statement of Financial Position [Extensible Enumeration] | Current portion of long-term debt | Current portion of long-term debt
Finance | $ 0.1 | $ 0.0
Long-term operating lease liabilities | $ 27.4 | $ 17.1
Finance Lease, Liability, Noncurrent, Statement of Financial Position [Extensible Enumeration] | Long-term debt | Long-term debt
Finance | $ 0.5 | $ 0.1
Total lease liabilities | 42.4 | 32.2
Finance lease asset, net of accumulated amortization | $ 0.1 | $ 0.1

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- Definition Present value of lessee's discounted obligation for lease payments from finance lease, classified as current. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 842 -SubTopic 20 -Name Accounting Standards Codification -Section 45 -Paragraph 1 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org//1943274/2147479041/842-20-45-1 + Details
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