Goodwill and Other Intangible Assets (Tables)

6 Months Ended

Jun. 28, 2015

The roll-forward of activity related to our goodwill was as follows (in thousands):

The gross amount of our other acquired intangible assets and the related accumulated amortization was as follows (in thousands):



	June 28, 2015			December 31, 2014
Patents, trademarks and other	$	26,137		$	25,333
Accumulated amortization	(13,696		)	(12,805		)
Net patents, trademarks and other	12,441			12,528
Customer relationships	21,935			21,739
Accumulated amortization	(6,957		)	(5,863		)
Net customer relationships	14,978			15,876
Developed technology	31,692			33,525
Accumulated amortization	(9,277		)	(7,818		)
Net developed technology	22,415			25,707
Total intangible assets included in other long-term assets	$	49,834		$	54,111

Amortization expense was as follows (in thousands):



	Twenty-Six Weeks Ended
	June 28, 2015		June 29, 2014
Patents, trademarks and other	$	2,040	$	2,119
Customer relationships	1,332		1,421
Developed technology	1,753		1,976
Total amortization expense	$	5,125	$	5,516

Expected amortization, without consideration for foreign currency effects, is as follows over the next five years and thereafter (in thousands):



	Patents, Trademarks and Other		Customer Relationships		Developed Technology		Total
Remainder of 2015	$	2,011	$	1,383	$	1,803	$	5,197
2016	3,181		2,766		3,607		9,554
2017	2,744		2,419		3,378		8,541
2018	1,951		2,404		2,967		7,322
2019	1,658		1,868		2,329		5,855
Thereafter	896		4,138		8,331		13,365
Total future amortization expense	$	12,441	$	14,978	$	22,415	$	49,834