Fair Value Measurements - Termination of Forward Purchase Agreements (Details) - USD ($)		3 Months Ended		9 Months Ended
	Mar. 18, 2024	Sep. 30, 2024	Mar. 31, 2024	Sep. 30, 2024
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Subscription receivable and derivative liability		$ 0		$ 20,300,000
ACM ARRT J LLC
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Number of shares retained upon termination agreement	3,100,000
Liquidated damages if it fails to meet requirements subject to termination agreement	$ 1,500,000
Subscription receivable and derivative liability			$ 1,500,000
Polar
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Number of shares retained upon termination agreement	3,175,000
Liquidated damages if it fails to meet requirements subject to termination agreement	$ 1,500,000
Subscription receivable and derivative liability			$ 1,500,000