Income Taxes - Reconciliation of effective tax expense and rate (Details) - USD ($) $ in Thousands	5 Months Ended	7 Months Ended	12 Months Ended
	Dec. 31, 2024	Jul. 30, 2024	Dec. 31, 2024	Dec. 31, 2023
Income tax reconciliation, amount
Income tax benefit at federal statutory rate	$ (16,151)			$ (7,684)
Permanent adjustments	687			448
Goodwill impairment	6,368
Change in FV of convertible note	627			(1,456)
Change in FV of warrant liability	(1,421)
NOL true-up adjustment				2,922
Foreign rate differential	(2)			11
Change in federal valuation allowance	9,230			2,869
Income tax expense	$ (1,912)		$ 0	$ 0
Income tax reconciliation, percent
Income tax benefit at federal statutory rate	21.00%	21.00%		21.00%
Permanent adjustments	(0.90%)			(1.20%)
Goodwill impairment	(8.30%)
Change in FV of convertible note	(0.80%)			(4.00%)
Change in FV of warrant liability	1.80%
NOL true-up adjustment				(8.00%)
Foreign rate differential				0.00%
Change in federal valuation allowance	(12.00%)			(7.80%)
Effective tax rate for the company's operations	2.40%