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SUBSEQUENT EVENTS - Additional Information (Details) - USD ($) $ in Thousands				12 Months Ended
	Feb. 13, 2024	Oct. 06, 2023	Feb. 02, 2023	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021	Feb. 23, 2024	Nov. 24, 2021
Subsequent Event [Line Items]
Total debt				$ 453,500	$ 549,704
Additional cash investment				$ 1,218	$ 13,725	$ 6,373
Gate Neurosciences Member
Subsequent Event [Line Items]
Additional cash investment		$ 5,000	$ 5,000
Gate Neurosciences Member \| Convertible Promissory Note Purchase Agreement
Subsequent Event [Line Items]
Debt Instrument, annual interest rate								8.00%
Convertible notes Face Value			21,500					$ 15,000
Gate Neurosciences Member \| Note Amendment Agreement
Subsequent Event [Line Items]
Convertible notes Face Value			$ 21,500
Subsequent Event \| ImaginAb Convertible Note
Subsequent Event [Line Items]
Total debt							$ 2,700
Debt Instrument, annual interest rate							10.00%
Subsequent Event \| Gate Neurosciences Member
Subsequent Event [Line Items]
Additional cash investment	$ 5,000
Subsequent Event \| Gate Neurosciences Member \| Convertible Promissory Note Purchase Agreement
Subsequent Event [Line Items]
Convertible notes Face Value	27,700
Subsequent Event \| Gate Neurosciences Member \| Note Amendment Agreement
Subsequent Event [Line Items]
Convertible notes Face Value	$ 33,500