Goodwill and Intangible Assets (Tables)

3 Months Ended

Mar. 30, 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	35,133			—			—		35,133
Purchase accounting adjustments	—			(39		)	—		(39		)
Foreign currency translation	(945		)	186			—		(759		)
March 30, 2019	$	335,611		$	191,855		$	57,071	$	584,537

Schedule of Acquired Finite-Lived Intangible Assets by Major Class

Identifiable intangible assets at March 30, 2019 and December 31, 2018 consist of the following:



March 30, 2019
(In thousands)	Gross carrying Amount		Accumulated amortization		Net carrying value
Developed technology	$	252,240	$	183,261	$	68,979
Trademarks and trade names	26,291		15,070		11,221
Customer relationships	331,186		139,623		191,563
Other	36,305		23,487		12,818
	$	646,022	$	361,441	$	284,581



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 March 30, 2019 to be the following:



(In thousands)	Remaining 2019		2020	2021	2022	2023	Thereafter	Total
Future amortization expense	$	48,424	43,122	36,656	36,080	34,917	85,382	$	284,581