
	Consumer Packaging		Industrial Paper Packaging		All Other		Total
Goodwill at December 31, 2023	$	1,056,241	$	506,406	$	248,007	$	1,810,654

Divestitures	—		—		(16,559)		(16,559)
Foreign currency translation	(7,222)		(9,258)		(206)		(16,686)
Measurement period adjustments	(7,890)		—		—		(7,890)
Goodwill at June 30, 2024	$	1,041,129	$	497,148	$	231,242	$	1,769,519

Goodwill activity reflected under the caption “Divestitures” relates to the April 2024 divestiture of Protexic. See Note 3 for additional information. Goodwill activity reflected under the caption “Measurement period adjustments” relates to the prior year acquisition of Inapel. See Note 3 for additional information.

The Company assesses goodwill for impairment annually during the third quarter, or from time to time when warranted by the facts and circumstances surrounding individual reporting units or the Company as a whole. The Company completed its most recent annual goodwill impairment testing during the third quarter of 2023 and analyzed certain qualitative and quantitative factors in determining whether a goodwill impairment existed. The Company’s assessments reflected a number of significant management assumptions and estimates including the Company’s forecast of sales growth, gross profit margins, and discount rates. Changes in these assumptions could materially impact the Company’s conclusions. Based on its assessments, the Company concluded that there was no impairment of goodwill for any of its reporting units.

Although no reporting units failed the annual impairment test, in management’s opinion the goodwill balance of the Plastics-Medical reporting unit is at risk of impairment in the near term if the reporting unit’s operations do not perform in line with management’s expectations, or if there is a negative change in the long-term outlook for the business or in other factors such as the discount rate. At June 30, 2024, the total goodwill associated with the Plastics-Medical reporting unit was $63,900.

During the time subsequent to the annual evaluation, and at June 30, 2024, the Company considered whether any events and/or changes in circumstances had resulted in the likelihood that the goodwill of any of its reporting units may have been impaired. It is management’s opinion that no such events and/or changes in circumstances have occurred.

A summary of other intangible assets as of June 30, 2024 and December 31, 2023 is as follows:


	June 30, 2024		December 31, 2023
Other Intangible Assets, gross:
Patents	$	29,300	$	29,304
Customer lists	1,220,406		1,282,689
Trade names	41,704		41,836
Proprietary technology	56,844		56,857
Other	6,542		6,916
Total Other Intangible Assets, gross	$	1,354,796	$	1,417,602

Accumulated Amortization:
Patents	$	(20,330)	$	(19,549)
Customer lists	(475,207)		(493,778)
Trade names	(21,500)		(18,845)
Proprietary technology	(31,258)		(29,013)
Other	(2,590)		(2,747)
Total Accumulated Amortization	(550,885)		(563,932)
Other Intangible Assets, net	$	803,911	$	853,670

“Total Other Intangibles Assets, gross” and “Total Accumulated Amortization” were both reduced by $54,860 during the first six months of 2024 as a result of the divestiture of Protexic in April 2024. These fully amortized intangible assets consisted primarily of customer lists. See Note 3 for additional information.

Other intangible assets are amortized using the straight-line method over their respective useful lives when management has determined that the straight-line method approximates the pattern of consumption of the respective intangible assets or in relation to the asset’s specific pattern of consumption if management has determined that the straight-line method does not provide a fair approximation of the consumption of benefits. These lives generally range from three to forty years. The Company has no intangible assets with indefinite lives.

Aggregate amortization expense was $22,511 and $20,539 for the three-month periods ended June 30, 2024 and July 2, 2023, respectively, $45,450 and $41,703 for the six-month periods ended June 30, 2024 and July 2, 2023, respectively. Amortization expense on other intangible assets is expected to total approximately $90,100 in 2024, $78,900 in 2025, $74,900 in 2026, $73,800 in 2027 and $72,900 in 2028.