Income Taxes - Schedule of Significant Deferred Tax Assets and Liabilities (Details) - USD ($) $ in Millions	Dec. 31, 2024	Dec. 31, 2023
Components Of Deferred Tax Assets And Liabilities [Abstract]
Capitalized research costs	$ 26.4	$ 13.2
Accrued liabilities and other reserves	14.8	13.9
Pension and other postretirement benefits plans liabilities	9.9	9.7
Allowance for doubtful accounts	9.7	9.5
Net operating losses and other tax carryforwards	6.8	10.2
Share-based compensation	5.7	6.3
Lease liabilities	3.8	7.7
Other	0.2	0.4
Total deferred tax assets	77.3	70.9
Valuation allowances	(5.5)	(5.8)
Total deferred tax assets	71.8	65.1
Goodwill and other intangible assets	(8.0)	(7.8)
Prepaid assets	(2.3)	(2.7)
Right-of-use assets	(1.9)	(3.6)
Capitalized contract costs	(1.9)	(1.3)
Accelerated depreciation	(0.9)	(2.9)
Other	(0.4)	(1.0)
Total deferred tax liabilities	(15.4)	(19.3)
Net deferred tax assets	$ 56.4	$ 45.8