SHAREHOLDERS' EQUITY - Narrative (Details) $ in Millions	12 Months Ended
	Dec. 31, 2021 USD ($) vote shares	Dec. 31, 2020 shares	Mar. 09, 2020 shares	Feb. 06, 2019 shares
Class of Stock [Line Items]
Stock authorized for repurchase (shares)			20,000,000	15,000,000
Stock repurchased during period (shares)	3,200,000
Shares repurchased during period, value | $	$ 35.4
Remaining stock authorized for repurchase (shares)	16,100,000
Class A Common Stock
Class of Stock [Line Items]
Votes per each share of stock | vote	1
Common stock outstanding (shares)	80,578,000	78,333,000
Common stock reserved (shares)	25,600,000
Class B Common Stock
Class of Stock [Line Items]
Votes per each share of stock | vote	10
Common stock outstanding (shares)	422,019,000	421,862,000
Class C Common Stock
Class of Stock [Line Items]
Common stock outstanding (shares)	0	0
Class C Common Stock | Delaware
Class of Stock [Line Items]
Fractional votes for each share of common stock | vote	0.01
Angi | IAC
Class of Stock [Line Items]
Economic interest (as a percent)	84.50%
Voting interest (as a percent)	98.20%
Angi | IAC | Class A Common Stock
Class of Stock [Line Items]
Common stock outstanding (shares)	2,600,000
Angi | IAC | Class B Common Stock
Class of Stock [Line Items]
Common stock outstanding (shares)	422,000,000
Minimum proportion of non-voting capital stock that parent is enabled to maintain upon issuance of new stock (as a percent)	80.10%