CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	1 Months Ended	2 Months Ended	3 Months Ended	7 Months Ended	9 Months Ended	12 Months Ended
	Jul. 21, 2023	Sep. 30, 2023	Sep. 30, 2024	Jul. 21, 2023	Sep. 30, 2024	Dec. 31, 2023
Cash flows from operating activities:
Net income (loss)		$ (297,711)		$ (60,678)	$ 39,923
Adjustments to reconcile net income (loss) to net cash used in operating activities:
Depreciation		21		54	74
Stock-based compensation expense		2,171		3,235	4,908
Write-off of acquired in-process research and development		348,000
Change in fair value of convertible notes	$ 13,249		$ 1,878	19,359	170
Change in fair value of warrants		(1,593)	377		15,376
Change in fair value of embedded forward purchase agreements and derivative liabilities	$ 11,789	15,776	(81)	11,789	19,931
Change in fair value of contingent consideration		(75,939)	0		(97,464)
Changes in operating assets and liabilities:
Prepaid expenses and other current assets		(363)		36	(770)
Accounts payable		(3,716)		(248)	1,242
Accrued expenses and other liabilities		(1,701)		4,736	(3,181)
Other assets and liabilities		(6)		(28)	120
Net cash used in operating activities		(15,061)		(21,745)	(19,671)
Cash flows from financing activities:
Proceeds from issuance of convertible notes				14,000	15,000
Aggregate gross proceeds					50
Net cash provided by financing activities				14,000	15,050
Net decrease in cash		$ (15,061)		$ (7,745)	(4,621)
Cash and cash equivalents at beginning of period					5,158
Cash and cash equivalents at end of period			$ 537		$ 537	$ 5,158
Financial Designation, Predecessor and Successor [Fixed List]	Predecessor	Successor	Successor	Predecessor	Successor
Predecessor [Member]
Cash flows from financing activities:
Cash and cash equivalents at beginning of period		$ 2,001		$ 9,746		$ 9,746
Cash and cash equivalents at end of period	$ 2,001			2,001
Successor [Member]
Cash flows from financing activities:
Cash and cash equivalents at beginning of period		31,238
Cash and cash equivalents at end of period	$ 31,238	$ 16,177		$ 31,238