Restatement of Previously Issued Unaudited Interim Condensed Consolidated Financial Statements - Condensed Consolidated Statement of Operations and Comprehensive loss (Details) - USD ($) $ / shares in Units, $ in Thousands	2 Months Ended	5 Months Ended	7 Months Ended	12 Months Ended
	Sep. 30, 2023	Dec. 31, 2023	Jul. 21, 2023	Dec. 31, 2022
Restatement of Previously Issued Unaudited Interim Condensed Consolidated Financial Statements
Acquired in-process research and development	$ 348,000	$ 348,000
Total operating costs and expenses	283,714	318,442	$ 29,644	$ 48,429
Income (loss) from operations	(283,714)	(318,442)	(29,644)	(48,429)
Income (loss) before taxes	(297,711)	(323,954)	(60,678)	(52,556)
Net income (loss) and comprehensive income (loss)	$ (297,711)	$ (323,954)	$ (60,678)	$ (52,556)
Basic net loss per share (in dollars per share)	$ (8.01)	$ (8.72)	$ (0.44)	$ (0.38)
Diluted net loss per share (in dollars per share)	$ (8.01)	$ (8.72)	$ (0.44)	$ (0.38)
As Reported
Restatement of Previously Issued Unaudited Interim Condensed Consolidated Financial Statements
Total operating costs and expenses	$ (64,286)	$ (29,558)
Income (loss) from operations	64,286	29,558
Income (loss) before taxes	50,289	24,046
Net income (loss) and comprehensive income (loss)	$ 50,289	$ 24,046
Basic net loss per share (in dollars per share)	$ 1.35	$ 0.65
Diluted net loss per share (in dollars per share)	$ 1.35	$ 0.65
Adjustment
Restatement of Previously Issued Unaudited Interim Condensed Consolidated Financial Statements
Acquired in-process research and development	$ 348,000	$ 348,000
Total operating costs and expenses	348,000	348,000
Income (loss) from operations	(348,000)	(348,000)
Income (loss) before taxes	(348,000)	(348,000)
Net income (loss) and comprehensive income (loss)	$ (348,000)	$ (348,000)
Basic net loss per share (in dollars per share)	$ (9.36)	$ (9.37)
Diluted net loss per share (in dollars per share)	$ (9.36)	$ (9.37)
Restatement adjustment | Error correction of write off of acquired in process research and development
Restatement of Previously Issued Unaudited Interim Condensed Consolidated Financial Statements
Net income (loss) and comprehensive income (loss)	$ 348,000	$ 348,000