The net result for the period of deducting operating expenses from operating revenues.

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Period Type:	duration

Overview - Narrative (Details) - USD ($) $ in Millions			12 Months Ended
Overview - Narrative (Details) - USD ($) $ in Millions	Nov. 07, 2024	Mar. 25, 2024	Dec. 31, 2024	Dec. 31, 2023
Schedule of Reverse Recapitalization [Line Items]
Operating income (loss)			$ (125.5)	$ (162.6)
Net cash used in operating activities			(106.4)	$ (99.8)
Sale of stock, consideration received on transaction	$ 315.5
Restructuring and related cost, number of positions expected to be eliminated, percent		17.00%
Senior Secured Convertible Glencore Note \| Convertible Debt
Schedule of Reverse Recapitalization [Line Items]
Amount Issued		$ 75.0	$ 75.0
DOE Loan Facility \| Line of Credit
Schedule of Reverse Recapitalization [Line Items]
Amount Issued	$ 475.0