NOTE 4 GOODWILL AND OTHER INTANGIBLE ASSETS

The changes in the carrying amount of goodwill for the year ended December 31, 2018 are as follows by reporting segment:


	Beauty +				Food +		Corporate
	Home		Pharma		Beverage		& Other		Total
Balance as of December 31, 2016
Goodwill	$	211,371	$	180,050	$	16,101	$	1,615	$	409,137
Accumulated impairment losses		—		—		—		(1,615)		(1,615)
	$	211,371	$	180,050	$	16,101	$	—	$	407,522
Foreign currency exchange effects		12,576		23,019		770		—		36,365
Balance as of December 31, 2017
Goodwill	$	223,947	$	203,069	$	16,871	$	1,615	$	445,502
Accumulated impairment losses		—		—		—		(1,615)		(1,615)
	$	223,947	$	203,069	$	16,871	$	—	$	443,887
Acquisition		5,565		174,343		103,678		—		283,586
Reallocation, net		—		(8,048)		8,048		—		—
Foreign currency exchange effects		(5,579)		(9,481)		(318)		—		(15,378)
Balance as of December 31, 2018
Goodwill	$	223,933	$	359,883	$	128,279	$	1,615	$	713,710
Accumulated impairment losses		—		—		—		(1,615)		(1,615)
	$	223,933	$	359,883	$	128,279	$	—	$	712,095

During the fourth quarter of 2018, certain CSP Technologies product lines were transferred from Pharma segment to Food + Beverage segment affecting Active Packaging and Food + Beverage reporting units to better align our customer needs. The changes resulted in the reassignment of the assets and liabilities to the reporting units affected. The goodwill was reallocated to the reporting units affected using the relative fair value approach.

We have completed the annual impairment analysis of our reporting units as of December 31, 2018 using a qualitative analysis of goodwill commonly referred to as the “step zero” approach for each of our reporting units except Active Packaging. Based on our review of macroeconomic, industry, and market events and circumstances as well as the overall financial performance of the reporting units, we determined that it was more likely than not that the fair value of these reporting units was greater than their carrying amounts. While we have not yet performed an impairment assessment for our Active Packaging reporting unit, we did consider whether there were any indicators of possible impairment since the acquisition and did not identify any such factors. We will perform a separate impairment assessment of the Active Packaging reporting unit within one year of the acquisition date.

The table below shows a summary of intangible assets for the years ended December 31, 2018 and 2017.


		2018							2017
Weighted Average		Gross						Gross
Amortization Period		Carrying		Accumulated		Net		Carrying		Accumulated		Net
	(Years)	Amount		Amortization		Value		Amount		Amortization		Value
Amortized intangible assets:
Patents	1.6	$	5,427	$	(5,294)	$	133	$	7,819	$	(7,806)	$	13
Acquired technology	13.5		92,389		(18,304)		74,085		47,571		(14,624)		32,947
Customer relationships	14.3		179,597		(20,439)		159,158		68,886		(13,401)		55,485
Trademarks and trade names	6.9		21,243		(5,914)		15,329		6,965		(4,485)		2,480
License agreements and other	12.0		13,852		(7,653)		6,199		14,862		(10,327)		4,535
Total intangible assets	13.2	$	312,508	$	(57,604)	$	254,904	$	146,103	$	(50,643)	$	95,460

Aggregate amortization expense for the intangible assets above for the years ended December 31, 2018, 2017 and 2016 was $15,455, $10,339 and $9,317, respectively.

Estimated amortization expense for the years ending December 31 is as follows:


2019	$	21,504
2020		22,984
2021		22,088
2022		21,837
2023 and thereafter		166,491

Future amortization expense may fluctuate depending on changes in foreign currency rates. The estimates for amortization expense noted above are based upon foreign exchange rates as of December 31, 2018.