Forward Merger - Number of shares of common stock issued and amounts recorded to arrive at the opening consolidated balance sheet of the Successor (Details) - USD ($) $ in Thousands		2 Months Ended	6 Months Ended
	Jul. 21, 2023	Sep. 30, 2023	Jun. 30, 2023
Number of shares of common stock issued and amounts recorded to arrive at the opening consolidated balance sheet of the Successor
Balance at the beginning			$ (287,500)
Balance at the beginning (in shares)			138,825,356
Balance at the ending		$ (128,396)
Balance at the ending (in shares)		37,159,600
Common Stock | Intangible Assets Acquired
Number of shares of common stock issued and amounts recorded to arrive at the opening consolidated balance sheet of the Successor
Balance at the beginning (in shares)	557,160
Shares issued in connection with the Merger	$ 2
Shares issued in connection with the Merger (in shares)	16,500,000
Stock-compensation for Class B Founder Shares into common shares	$ 1
Stock-compensation for Class B Founder Shares into common shares (in shares)	6,900,000
Shares issued in Forward Purchase Agreements	$ 1
Shares issued in Forward Purchase Agreements (in shares)	6,275,000
Shares issued in New Money PIPE Subscription Agreements (in shares)	1,001,000
Shares issued for Committed Financing (in shares)	3,571,429
Other miscellaneous (in shares)	128,829
Balance at the ending	$ 4
Balance at the ending (in shares)	37,159,600
Subscription Receivables | Intangible Assets Acquired
Number of shares of common stock issued and amounts recorded to arrive at the opening consolidated balance sheet of the Successor
Shares issued in Forward Purchase Agreements	$ (60,710)
Balance at the ending	(60,710)
APIC | Intangible Assets Acquired
Number of shares of common stock issued and amounts recorded to arrive at the opening consolidated balance sheet of the Successor
Balance at the beginning	5,937
Shares issued in connection with the Merger	192,189
Stock-compensation for Class B Founder Shares into common shares	68,972
Shares issued in Forward Purchase Agreements	66,714
Shares issued in New Money PIPE Subscription Agreements	10,844
Shares issued for Committed Financing	38,714
Founder contingent shares	(31,401)
Other miscellaneous	1,397
Balance at the ending	377,498
Accumulated Deficit | Intangible Assets Acquired
Number of shares of common stock issued and amounts recorded to arrive at the opening consolidated balance sheet of the Successor
Balance at the beginning	(12,897)
Stock-compensation for Class B Founder Shares into common shares	(68,972)
Shares issued in Forward Purchase Agreements	(38,255)
Issuance of Make-Whole derivative	(427)
Shares issued in New Money PIPE Subscription Agreements	(6,433)
Shares issued for Committed Financing	(13,714)
Acquired IPR&D and Loss on consolidation of VIE	(355,553)
Other miscellaneous	(1,397)
Balance at the ending	$ (497,648)