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Financing Arrangements (Tables)

9 Months Ended

Sep. 30, 2024

Debt Instrument [Line Items]

Summary of Current and Non-current Debt

The following table summarizes the current and non-current debt as of September 30, 2024 and December 31, 2023:

		September 30, 2024				December 31, 2023
Credit Agreement		$	—			$	—
Convertible Senior Notes due 2025			13.2				13.2
Total debt		$	13.2			$	13.2
Less current portion of debt			13.2				13.2
Total non-current portion of debt		$	—			$	—

Schedule of Interest (income) Expense

The following table provides the components of interest (income) expense, net for the three and nine months ended September 30, 2024 and 2023:

		Three Months Ended September 30,								Nine Months Ended September 30,
		2024				2023				2024				2023
Interest expense		$	0.7			$	0.6			$	2.0			$	1.9
Interest income			(3.1	)			(2.4	)			(9.6	)			(6.9	)
Interest (income) expense, net		$	(2.4	)		$	(1.8	)		$	(7.6	)		$	(5.0	)

Convertible Senior Notes due 2025

Debt Instrument [Line Items]

Schedule of Components of Convertible Notes

The components of the Convertible Senior Notes due 2025 as of September 30, 2024 and December 31, 2023 were as follows:

		September 30, 2024				December 31, 2023
Principal		$	13.3			$	13.3
Less: Debt issuance costs, net of amortization			(0.1	)			(0.1	)
Convertible Senior Notes due 2025, net		$	13.2			$	13.2

Convertible Notes

Debt Instrument [Line Items]

Schedule of Interest (income) Expense

The following table sets forth interest expense recognized specifically related to the Convertible Notes:

		Three Months Ended September 30,								Nine Months Ended September 30,
		2024				2023				2024				2023
Contractual interest expense		$	0.2			$	0.2			$	0.6			$	0.7
Amortization of debt issuance costs			—				—				—				0.1
Total		$	0.2			$	0.2			$	0.6			$	0.8

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