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Income Taxes - Deferred Tax Assets and Liabilities (Details) - USD ($) $ in Millions	Dec. 31, 2025	Dec. 31, 2024
Deferred tax assets:
Net operating loss carryforwards	$ 3.2	$ 6.1
Tax credit carryforwards	7.6	2.1
Pension and deferred compensation	43.9	28.9
Other	17.0	17.9
Capitalized R&D expenses	32.3	30.1
Leases	26.3	21.5
Valuation allowance	(16.2)	(12.8)
Total deferred tax assets	114.1	93.8
Deferred tax liabilities:
Property, plant, and equipment	64.7	60.9
Tax on undistributed earnings of subsidiaries	2.3	0.4
Leases	25.7	22.0
Other	6.0	5.0
Total deferred tax liabilities	98.7	88.3
Net deferred tax asset	$ 15.4	$ 5.5

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