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Debt - Interest Expense (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2025	Sep. 30, 2024
Debt Instrument [Line Items]
Interest Expense, Debt, Excluding Amortization	$ 2.3	$ 0.0	$ 6.8	$ 0.0
Amortization of Debt Issuance Costs	0.9	0.0	2.0	0.0
Interest expense	3.4	0.1	9.9	0.8
Convertible Notes
Debt Instrument [Line Items]
Interest expense	$ 3.2	$ 0.0	$ 8.8	$ 0.0

X

- Definition

Amount of amortization expense attributable to debt issuance costs.

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