Goodwill and Intangible Assets (Tables)

3 Months Ended

Apr. 01, 2017

Goodwill activity for each period was as follows:



(In thousands)	Specialty Chemicals and Engineered Materials		Advanced Materials Handling		Total
December 31, 2016	$	297,858	$	47,411	$	345,269
Foreign currency translation	3,851		—		3,851
April 1, 2017	$	301,709	$	47,411	$	349,120

Schedule of Acquired Finite-Lived Intangible Assets by Major Class

Identifiable intangible assets at April 1, 2017 and December 31, 2016 consist of the following:



April 1, 2017
(In thousands)	Gross carrying Amount		Accumulated amortization		Net carrying value
Developed technology	$	202,653	$	131,940	$	70,713
Trademarks and trade names	16,719		13,109		3,610
Customer relationships	219,744		96,110		123,634
Other	18,585		7,951		10,634
	$	457,701	$	249,110	$	208,591



December 31, 2016
(In thousands)	Gross carrying amount		Accumulated amortization		Net carrying value
Developed technology	$	202,591	$	126,077	$	76,514
Trademarks and trade names	16,661		12,617		4,044
Customer relationships	216,918		90,581		126,337
Other	18,585		7,932		10,653
	$	454,755	$	237,207	$	217,548

Estimated Future Amortization Expense

Future amortization expense for each of the five succeeding years and thereafter relating to intangible assets currently recorded in the Company's consolidated balance sheets is estimated at April 1, 2017 to be the following:




Fiscal year ending December 31	(In thousands)
2017	$	31,330
2018	42,721
2019	40,476
2020	25,694
2021	18,951
Thereafter	49,419
	$	208,591