Summary of Significant Accounting Policies - Segment Reporting - Reconciliation of company's net income (Details) - USD ($) $ in Thousands			3 Months Ended
	Jan. 07, 2025	Jan. 06, 2025	Mar. 31, 2025	Mar. 31, 2024
Segment operating expenses:
Research and development			$ 825	$ 5,732
Change in fair value of contingent consideration			(3,488)	63,769
Total operating costs and expenses			462	74,150
Loss from operations			(462)	(74,150)
Other segment items:
Change in fair value of convertible notes			(1,631)	(87)
Change in fair value of warrants			(86,729)	20,903
Loss on issuance of warrants	$ (75,600)	$ 75,600	(75,644)
Change in Fair Value of Forward Purchase Agreement and Derivative				22,917
Other income, net			103	39
Total other income (loss), net			9,557	(43,868)
Income (loss) before taxes			9,095	(118,018)
Net income (loss)			9,095	(118,018)
Single reportable segment
Segment operating expenses:
Compensation and benefits			2,388	2,840
Professional and legal fees			1,215	2,544
Office and travel			234	380
Research and development			113	4,617
Total selling, general and administrative, and research and development			3,950	10,381
Change in fair value of contingent consideration			(3,488)	63,769
Total operating costs and expenses			462	74,150
Loss from operations			(462)	(74,150)
Other segment items:
Change in fair value of convertible notes			(1,631)	(87)
Change in fair value of warrants			86,729	(20,903)
Loss on issuance of warrants			(75,644)
Change in Fair Value of Forward Purchase Agreement and Derivative				(22,917)
Other income, net			103	39
Total other income (loss), net			9,557	(43,868)
Income (loss) before taxes			9,095	(118,018)
Net income (loss)			$ 9,095	$ (118,018)