INTANGIBLE ASSETS AND GOODWILL (Tables)

12 Months Ended

Dec. 31, 2016

Goodwill and Intangible Assets Disclosure [Abstract]

Intangible assets

The Company's intangible assets at December 31, 2016 and 2015 consisted of the following (in thousands):

	December 31, 2016							December 31, 2015
	Gross Carrying Amount		Accumulated Amortization			Net Carrying Amount		Gross Carrying Amount		Accumulated Amortization			Net Carrying Amount		Amortization Period	Weighted Average Useful Life
Supply and distribution agreements	$	809,287	$	(270,813	)	$	538,474	$	824,932	$	(227,994	)	$	596,938	10 - 20 years	16 years
Technology	112,141		(80,549		)	31,592		112,639		(61,404		)	51,235		1 - 5 years	5 years
Patents	1,623		(1,598		)	25		1,623		(1,562		)	61		15 years	15 years
Internet domain names	39,495		(25,089		)	14,406		40,352		(20,954		)	19,398		2 - 20 years	8 years
Trade names	1,667,221		(261,412		)	1,405,809		1,671,356		(183,101		)	1,488,255		4-20 years	20 years
Non-compete agreements	21,900		(18,321		)	3,579		22,847		(11,201		)	11,646		3-4 years	3 years
Other	—		—			—		135		(135		)	—
Total intangible assets	$	2,651,667	$	(657,782	)	$	1,993,885	$	2,673,884	$	(506,351	)	$	2,167,533

Annual estimated amortization expense for intangible assets for the next five years and thereafter

The annual estimated amortization expense for intangible assets for the next five years and thereafter is expected to be as follows (in thousands):

2017	$	159,451
2018	141,161
2019	130,997
2020	124,216
2021	119,469
Thereafter	1,318,591
	$	1,993,885

Goodwill

A roll-forward of goodwill for the years ended December 31, 2016 and 2015 consisted of the following (in thousands):

	2016			2015
Balance, beginning of year	$	3,375,000		$	3,326,474
Acquisitions	—			74,584
Impairment	(940,700		)	—
Currency translation adjustments	(37,394		)	(26,058		)
Balance, end of year	$	2,396,906		$	3,375,000