FAIR VALUE MEASUREMENTS - Movements of Level 3 Assets (Details) - Level 3 - USD ($) $ in Thousands	Jun. 30, 2024	Dec. 31, 2023	Jun. 30, 2023
Movement in Level 3 assets measured at fair value
Balance at beginning of period	$ 2,000	$ 2,000	$ 2,000
Balance at end of period	$ 2,000	$ 2,000	$ 2,000