FAIR VALUE MEASUREMENTS - Fair value measured on recurring basis (Details) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Level 1 to level 2	$ 0	$ 0
Level 2 to level 1	0	0
Level 3	0	0
Employment Agreement Award
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Balance, beginning of period	22,970	25,741
Change in fair value	(6,263)	(1,818)
Balance, end of period	16,707	23,923
Redeemable Non-controlling Interests
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Balance, beginning of period	16,520	25,298
Net income attributable to non-controlling interests	576	1,303
Purchase of ownership interest in Reach Media	(7,603)
Dividends paid to non-controlling interests	(1,799)	(2,001)
Change in fair value	1,377	(313)
Balance, end of period	$ 9,071	$ 24,287