ORGANIZATION - Narrative (Details)	Dec. 31, 2019
Match Group
Noncontrolling Interest [Line Items]
Ownership interest (as a percent)	80.70%
Voting interest (as a percent)	97.50%
ANGI Homeservices
Noncontrolling Interest [Line Items]
Ownership interest (as a percent)	84.10%
Voting interest (as a percent)	98.10%