ACCRUED EXPENSES AND OTHER CURRENT LIABILITIES (Details) - USD ($) $ in Thousands	Mar. 31, 2022	Dec. 31, 2021
Accrued expenses and other current liabilities
Accrued advertising expense	$ 65,778	$ 59,150
Accrued compensation and benefits	12,394	16,330
Accrued professional fees	1,127	1,887
Customer deposits and escrows	8,209	7,546
Contribution to LendingTree Foundation	0	3,333
Current lease liabilities	8,561	8,595
Other	11,812	9,890
Total accrued expenses and other current liabilities	$ 107,881	$ 106,731