DISCONTINUED OPERATIONS - Components of Loss (Details) - Discontinued Operations, Disposed of by Sale - IAC/InterActiveCorp - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Revenue	$ 726,361	$ 688,684	$ 1,410,485	$ 1,329,903
Operating costs and expenses	(840,902)	(705,683)	(1,840,178)	(1,384,589)
Operating loss	(114,541)	(16,999)	(429,693)	(54,686)
Interest expense	(1,555)	(3,661)	(3,772)	(7,352)
Other income (expense)	51,244	43,435	(2,503)	45,573
Income tax benefit	30,241	4,790	69,390	39,333
(Loss) earnings from discontinued operations	$ (34,611)	$ 27,565	$ (366,578)	$ 22,868