Significant Accounting Policies - Basic and Diluted Loss Per Share (Details) - USD ($) $ / shares in Units, $ in Thousands	1 Months Ended	2 Months Ended	3 Months Ended					8 Months Ended	9 Months Ended
	Feb. 13, 2024	Mar. 31, 2024	Sep. 30, 2024	Jun. 30, 2024	Sep. 30, 2023	Jun. 30, 2023	Mar. 31, 2023	Sep. 30, 2024	Sep. 30, 2023
Accounting Policies [Abstract]
Net loss	$ (11,789)	$ (180,105)	$ (255,570)	$ (165,436)	$ (23,070)	$ (22,308)	$ (23,193)	$ (601,111)	$ (68,571)
Weighted average shares outstanding—basic (in shares)			62,166,298					60,969,774
Weighted average shares outstanding—diluted (in shares)			62,166,298					60,969,774
Net loss per share—Basic (in dollars per share)			$ (4.11)					$ (9.86)
Net loss per share—Diluted (in dollars per share)			$ (4.11)					$ (9.86)