Fair Value Measurements - Recurring and Nonrecurring Fair Value Measurements (Details) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
	Sep. 30, 2024	Sep. 30, 2024	Sep. 30, 2023	Dec. 31, 2023
Fair Value Measurements
Warrants, at fair value	$ 13,400	$ 13,400		$ 25,900
Other than temporary impairment on securities	15,380	15,380	$ 5,293
Fair Value, Inputs, Level 1
Fair Value Measurements
Restricted Cash Held in Trust	328,000	328,000		315,500
Fair Value, Inputs, Level 2
Fair Value Measurements
Short-Term Investments	$ 7,700	$ 7,700		$ 12,700