ACCRUED EXPENSES AND OTHER CURRENT LIABILITIES (Details) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2020	Dec. 31, 2019
Accrued expenses and other current liabilities
Accrued advertising expense	$ 27,859	$ 37,703
Accrued compensation and benefits	15,091	11,444
Accrued professional fees	1,101	1,393
Customer deposits and escrows	7,732	7,273
Contribution to LendingTree Foundation	0	500	$ 3,300	$ 3,300
Current lease liabilities	7,387	8,513
Other	11,374	8,269
Total accrued expenses and other current liabilities	$ 70,544	$ 75,095