SUBSEQUENT EVENTS - Narrative (Details) - Subsequent Event shares in Millions	Nov. 05, 2018 USD ($)	Nov. 02, 2018	Oct. 19, 2018 shares	Oct. 10, 2018 shares
Term Loan | Base Rate | Term Loan | Quarterly Payments for First Three Years
Subsequent Event [Line Items]
Interest rate (as a percent)	1.25%
Term Loan | Base Rate | Term Loan | Quarterly Payments in Fourth Year
Subsequent Event [Line Items]
Interest rate (as a percent)	2.50%
Term Loan | Base Rate | Term Loan | Quarterly Payments in Fifth Year
Subsequent Event [Line Items]
Interest rate (as a percent)	3.75%
Angie's List Transaction Agreement | Class B Common Stock
Subsequent Event [Line Items]
Stock issued in transaction (shares)				5.1
Revolving Credit Facility | ANGI Homeservices Credit Facility
Subsequent Event [Line Items]
Maximum borrowing capacity | $	$ 250,000,000
Commitment fee (as a percent)		0.25%
Maximum | ANGI Homeservices Credit Facility
Subsequent Event [Line Items]
Net leverage ratio	4.5
Minimum | ANGI Homeservices Credit Facility
Subsequent Event [Line Items]
Interest coverage ratio	2.0
Handy Technologies, Inc. | Class A Common Stock
Subsequent Event [Line Items]
Stock issued in business acquisition (shares)			8.6