Goodwill and Intangible Assets (Tables)

9 Months Ended

Sep. 28, 2019

Goodwill and Intangible Assets Disclosure [Abstract]

Goodwill activity for each period was as follows:



(In thousands)	Specialty Chemicals and Engineered Materials			Microcontamination Control			Advanced Materials Handling		Total
December 31, 2018	$	301,423		191,708			$	57,071	$	550,202
Addition due to acquisitions	86,590			25,214			—		111,804
Purchase accounting adjustments	1,406			451			—		1,857
Foreign currency translation	(3,749		)	(274		)	—		(4,023		)
September 28, 2019	$	385,670		$	217,099		$	57,071	$	659,840

Schedule of Acquired Finite-Lived Intangible Assets by Major Class

Identifiable intangible assets at September 28, 2019 and December 31, 2018 consist of the following:



September 28, 2019
(In thousands)	Gross carrying Amount		Accumulated amortization		Net carrying value
Developed technology	$	268,593	$	197,176	$	71,417
Trademarks and trade names	28,856		15,767		13,089
Customer relationships	425,371		152,937		272,434
Other	37,000		26,382		10,618
	$	759,820	$	392,262	$	367,558



December 31, 2018
(In thousands)	Gross carrying amount		Accumulated amortization		Net carrying value
Developed technology	$	248,776	$	176,421	$	72,355
Trademarks and trade names	25,643		14,749		10,894
Customer relationships	328,050		133,068		194,982
Other	36,306		18,850		17,456
	$	638,775	$	343,088	$	295,687

Estimated Future Amortization Expense

Future amortization expense during the remainder of 2019, the next four years and thereafter relating to intangible assets currently recorded in the Company’s condensed consolidated balance sheets is estimated at September 28, 2019 to be the following:



(In thousands)	Remaining 2019		2020	2021	2022	2023	Thereafter	Total
Future amortization expense	$	16,016	50,731	41,587	40,997	39,005	179,222	$	367,558