Supplemental cash flow information (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024
Supplemental Cash Flow Information [Abstract]
Increase in debt from paid-in-kind interest	$ 9,114	$ 10,551
Accelerated amortization of original issue discount and issuance costs	0	6,871
Cash interest paid	1,264	1,797
Gain on extinguishment of debt, net	$ (9,154)	$ 0