Goodwill and Other Intangible Assets (Tables)

6 Months Ended

Jun. 28, 2020

Goodwill and Intangible Assets Disclosure [Abstract]

Changes in goodwill by segment

A summary of the changes in goodwill by segment for the six months ended June 28, 2020 is as follows: 

	Consumer Packaging		Display and Packaging		Paper and Industrial Converted Products		Protective Solutions		Total
Goodwill at December 31, 2019	$	691,243	$	203,414	$	303,041	$	231,648	$	1,429,346
2020 Acquisitions	—		—		1,050		—		1,050
Foreign currency translation	(6,398)		—		(3,138)		(527)		(10,063)
Measurement period adjustments	2,763		—		616		—		3,379
Goodwill at June 28, 2020	$	687,608	$	203,414	$	301,569	$	231,121	$	1,423,712

Summary of other intangible assets

A summary of other intangible assets as of June 28, 2020 and December 31, 2019 is as follows: 

	June 28, 2020		December 31, 2019
Other Intangible Assets, gross:
Patents	$	26,091	$	26,096
Customer lists	629,363		632,036
Trade names	32,357		32,427
Proprietary technology	24,474		24,525
Other	2,790		2,297
Other Intangible Assets, gross	$	715,075	$	717,381
Accumulated Amortization:
Patents	$	(12,483)	$	(11,669)
Customer lists	(309,488)		(287,831)
Trade names	(11,336)		(9,985)
Proprietary technology	(19,028)		(17,910)
Other	(1,744)		(1,694)
Total Accumulated Amortization	$	(354,079)	$	(329,089)
Other Intangible Assets, net	$	360,996	$	388,292