GOODWILL AND INTANGIBLE ASSETS

12 Months Ended

Dec. 31, 2018

GOODWILL AND INTANGIBLE ASSETS

13. GOODWILL AND INTANGIBLE ASSETS

The changes in the carrying amount of goodwill are as follows:

Balance at December 31, 2016	$	379,737
Foreign currency translation adjustment		2,992
Balance at December 31, 2017		382,729
Acquired goodwill		13,301
Foreign currency translation adjustment		(4,032	)
Balance at December 31, 2018	$	391,998

Intangible assets are comprised of the following:

December 31,	Estimated Useful Lives		2018			2017
Indefinite lived intangible assets - Trade names, trademarks and distribution rights			$	119,188		$	125,194
Finite lived intangible assets:
Customer relationships		10-15 years		69,593			73,053
Patented and unpatented technology		7 years		1,600			—
Trade name		10 years		1,150			1,150
Accumulated amortization				(43,680	)		(38,332	)
Finite lived intangible assets, net				28,663			35,871
			$	147,851		$	161,065

Amortization expense related to finite lived intangible assets included in selling, general and administrative expenses for the years ended December 31, 2018, 2017 and 2016, were $5,348, $5,263 and $5,213, respectively. Annual amortization of finite lived intangible assets for the next five years is expected to approximate the following:

2019	$	5,000
2020	$	5,000
2021	$	4,200
2022	$	3,400
2023	$	2,800