INTANGIBLE ASSETS AND GOODWILL (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Finite-lived intangible assets
Gross Carrying Amount	$ 3,038,812	$ 2,651,667
Accumulated Amortization	(861,989)	(657,782)
Net Carrying Amount	2,176,823	1,993,885	$ 2,167,533
Intangible assets amortization expense	175,543	169,076	$ 170,977
Supply and distribution agreements
Finite-lived intangible assets
Gross Carrying Amount	1,056,660	809,287
Accumulated Amortization	(355,000)	(270,813)
Net Carrying Amount	$ 701,660	538,474
Weighted Average Useful Life	16 years
Supply and distribution agreements | Minimum
Finite-lived intangible assets
Amortization Period	3 years
Supply and distribution agreements | Maximum
Finite-lived intangible assets
Amortization Period	20 years
Technology
Finite-lived intangible assets
Gross Carrying Amount	$ 137,288	112,141
Accumulated Amortization	(104,478)	(80,549)
Net Carrying Amount	$ 32,810	31,592
Weighted Average Useful Life	5 years
Technology | Minimum
Finite-lived intangible assets
Amortization Period	1 year
Technology | Maximum
Finite-lived intangible assets
Amortization Period	5 years
Patents
Finite-lived intangible assets
Gross Carrying Amount	$ 1,623	1,623
Accumulated Amortization	(1,623)	(1,598)
Net Carrying Amount	$ 0	25
Amortization Period	15 years
Weighted Average Useful Life	15 years
Internet domain names
Finite-lived intangible assets
Gross Carrying Amount	$ 42,265	39,495
Accumulated Amortization	(28,802)	(25,089)
Net Carrying Amount	$ 13,463	14,406
Weighted Average Useful Life	8 years
Internet domain names | Minimum
Finite-lived intangible assets
Amortization Period	5 years
Internet domain names | Maximum
Finite-lived intangible assets
Amortization Period	20 years
Trade names
Finite-lived intangible assets
Gross Carrying Amount	$ 1,779,076	1,667,221
Accumulated Amortization	(350,447)	(261,412)
Net Carrying Amount	$ 1,428,629	1,405,809
Weighted Average Useful Life	19 years
Trade names | Minimum
Finite-lived intangible assets
Amortization Period	4 years
Trade names | Maximum
Finite-lived intangible assets
Amortization Period	20 years
Non-compete agreements
Finite-lived intangible assets
Gross Carrying Amount	$ 21,900	21,900
Accumulated Amortization	(21,639)	(18,321)
Net Carrying Amount	$ 261	$ 3,579
Weighted Average Useful Life	3 years
Non-compete agreements | Minimum
Finite-lived intangible assets
Amortization Period	3 years
Non-compete agreements | Maximum
Finite-lived intangible assets
Amortization Period	4 years