RELATED PARTY TRANSACTIONS (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Related Party Transactions [Abstract]
Charitable contribution	$ 10,000
Contribution to LendingTree Foundation		$ 3,333	$ 3,333	$ 3,300