8. GOODWILL AND OTHER INTANGIBLE ASSETS

The following is a roll-forward of goodwill for the years ended December 31, 2018 and 2017 by reportable segment:


	Monster
	Energy®		Strategic
	Drinks		Brands		Other		Total
Balance at December 31, 2017	$	693,644	$	637,999	$	—	$	1,331,643
Acquisitions		—		—		—		—
Balance at December 31, 2018	$	693,644	$	637,999	$	—	$	1,331,643


	Monster
	Energy®		Strategic
	Drinks		Brands		Other		Total
Balance at December 31, 2016	$	693,644	$	637,999	$	—	$	1,331,643
Acquisitions		—		—		—		—
Balance at December 31, 2017	$	693,644	$	637,999	$	—	$	1,331,643

Intangible assets consist of the following at:


	December 31,		December 31,
	2018		2017
Amortizing intangibles	$	71,350	$	71,400
Accumulated amortization		(38,311)		(26,383)
		33,039		45,017
Non-amortizing intangibles		1,012,839		989,068
	$	1,045,878	$	1,034,085

Amortizing intangibles primarily consist of customer relationships. All amortizing intangibles have been assigned an estimated finite useful life and such intangibles are amortized on a straight-line basis over the number of years that approximate their respective useful lives, generally five to seven years. Total amortization expense recorded was $11.9 million, $11.9 million and $10.6 million for the years ended December 31, 2018, 2017 and 2016, respectively.

The following is the future estimated amortization expense related to amortizing intangibles as of December 31, 2018:


Year Ending December 31:
2019	$	11,847
2020		7,965
2021		4,722
2022		4,697
2023		1,404
2024 and thereafter		2,404
	$	33,039

At December 31, 2018, non-amortizing intangibles primarily consist of indefinite-lived tradenames, flavors and formulas.