INCOME TAXES (Narrative) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Income Tax Disclosure [Abstract]
International pre-tax income	$ 3,700,000	$ 3,100,000	$ 2,900,000
Domestic pre-tax income	(983,100)	35,400	98,400
Goodwill [Line Items]
Impairment of goodwill	940,700	$ 0	$ 0
OpenTable
Goodwill [Line Items]
Impairment of goodwill	$ 940,700