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Financing Arrangements - Schedule of Convertible Debt (Details) - USD ($) $ in Millions	Sep. 30, 2024	Dec. 31, 2023
Debt Instrument [Line Items]
Total debt	$ 13.2	$ 13.2
Convertible Senior Notes due 2025
Debt Instrument [Line Items]
Principal	13.3	13.3
Less: Debt issuance costs, net of amortization	(0.1)	(0.1)
Total debt	$ 13.2	$ 13.2

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