Long term debt, net - Narrative 2 (Details)		3 Months Ended		9 Months Ended
	Mar. 27, 2025 USD ($) $ / shares	Sep. 30, 2025 USD ($) shares	Sep. 30, 2024 USD ($)	Sep. 30, 2025 USD ($) shares	Sep. 30, 2024 USD ($)	Dec. 31, 2024 USD ($)
Long term debt
Warrants issued | shares		37,182,036		37,182,036
Carrying value of the Notes, net of debt issuance cost and discount		$ 230,124,000		$ 230,124,000		$ 54,621,000
Interest expense – 2028 Notes		$ 4,978,000		$ 10,090,000
Senior Secured Convertible Notes due 2028 [Member]
Long term debt
Interest expense – 2028 Notes			$ 0		$ 0
Note Purchase Agreement [Member] | Debt Warrants 2028 [Member] | Fortress Investment Group LLC [Member]
Long term debt
Warrants issued | shares		3,900,000		3,900,000
Note Purchase Agreement [Member] | Senior Secured Convertible Notes due 2028 [Member]
Long term debt
Debt Instrument, Maturity Date	Jun. 30, 2028
Debt Instrument, Frequency of Periodic Payment	semi-annually
Debt Instrument, Interest Rate, Stated Percentage	5.00%
Debt Instrument, Convertible, Number of shares per thousand dollars principal amount | $ / shares	79.6178
Debt Instrument, Convertible, Denominator value of principal amount	$ 1,000
Carrying value of the Notes, net of debt issuance cost and discount		$ 155,100,000		$ 155,100,000
Debt discount of the Notes		34,900,000		34,900,000
Note Purchase Agreement [Member] | Senior Secured Convertible Notes due 2028 [Member] | Fortress Investment Group LLC [Member]
Long term debt
Interest Payable		$ 833,000		$ 833,000
Minimum percentage of ownership interest held by stockholder (as a percent)		10.00%		10.00%
Debt Instrument, Aggregate principal amount		$ 50,000,000		$ 50,000,000
Debt Instrument, Accrued interest expense		625,000		1,278,000
Note Purchase Agreement [Member] | Senior Secured Convertible Notes due 2028 [Member] | Entity affiliated with Neil S. Subin [Member]
Long term debt
Interest Payable		105,000		105,000
Debt Instrument, Aggregate principal amount		6,300,000		6,300,000
Debt Instrument, Accrued interest expense		79,000		161,000
Note Purchase Agreement [Member] | Senior Secured Convertible Notes due 2028 [Member] | Debt Warrants 2028 [Member]
Long term debt
Fair value of derivative liability		75,100,000		75,100,000
Fair value of debt		$ 9,000,000		$ 9,000,000