Overview (Details)						3 Months Ended		6 Months Ended
	Jan. 31, 2025 USD ($)	Oct. 31, 2024 USD ($)	Aug. 31, 2024 USD ($)	Jun. 30, 2024 USD ($)	Jun. 21, 2024 USD ($) installment	Jun. 30, 2024 USD ($)	Jun. 30, 2023 USD ($)	Jun. 30, 2024 USD ($) segment	Jun. 30, 2023 USD ($)	Dec. 31, 2023 USD ($)	Aug. 31, 2023 USD ($)	Jul. 29, 2022 USD ($)
Line of Credit Facility [Line Items]
Number of reportable segments | segment								1
Number of operating segments | segment								1
Proceeds from issuance of secured debt								$ 70,075,000	$ 0
Gain (loss) on debt extinguishment						$ 68,478,000	$ (1,876,000)	68,478,000	(3,510,000)
Net loss attributable to shareholders						(28,172,000)	(131,630,000)	(74,880,000)	(203,230,000)
Net cash used in operating activities								66,807,000	75,582,000
Accumulated deficit				$ 950,726,000		950,726,000		950,726,000		$ 875,846,000
Cash and cash equivalents				52,454,000		52,454,000	$ 23,243,000	52,454,000	$ 23,243,000	69,473,000
Working capital				115,058,000		115,058,000		115,058,000
Loan commitment assets				76,091,000		76,091,000		76,091,000		$ 0
Delayed Draw Term Loan | Secured Debt
Line of Credit Facility [Line Items]
Principal					$ 210,500,000
Number of installments | installment					4
Proceeds from issuance of secured debt				135,500,000	$ 75,000,000
Loan commitment assets				$ 76,091,000		$ 76,091,000		$ 76,091,000
Delayed Draw Term Loan | Secured Debt | Forecast
Line of Credit Facility [Line Items]
Proceeds from issuance of secured debt	$ 40,500,000	$ 65,000,000	$ 30,000,000
Credit Facility | Line of Credit | Revolving Credit Facility
Line of Credit Facility [Line Items]
Maximum borrowing capacity					105,000,000
Senior Secured Term Loan | Secured Debt
Line of Credit Facility [Line Items]
Principal												$ 100,000,000
Extinguishment of debt					100,000,000
Gain (loss) on debt extinguishment					$ 68,478,000
DOE Clean Energy Financing Program | Notes Payable
Line of Credit Facility [Line Items]
Aggregate principal amount											$ 398,600,000