Goodwill and Other Intangible Assets (Tables)

3 Months Ended

Mar. 30, 2014

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

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



	March 30, 2014			December 31, 2013
Patents, trademarks and other	$	25,827		$	24,327
Accumulated amortization	(10,283		)	(9,296		)
Net patents, trademarks and other	15,544			15,031
Customer relationships	23,852			21,650
Accumulated amortization	(4,211		)	(3,547		)
Net customer relationships	19,641			18,103
Developed technology	37,437			18,161
Accumulated amortization	(4,985		)	(4,098		)
Net developed technology	32,452			14,063
Total intangible assets included in other long-term assets	$	67,637		$	47,197

Amortization expense was as follows (in thousands):



	Thirteen Weeks Ended
	March 30, 2014		March 31, 2013
Patents, trademarks and other	$	1,001	$	919
Customer relationships	666		505
Developed technology	887		524
Note issuance costs	—		87
Total amortization expense	$	2,554	$	2,035

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 2014	$	2,885	$	2,153	$	3,164	$	8,202
2015	3,695		2,871		4,218		10,784
2016	2,839		2,871		4,218		9,928
2017	2,265		2,523		3,938		8,726
2018	1,649		2,437		3,774		7,860
Thereafter	2,211		6,786		13,140		22,137
Total future amortization expense	$	15,544	$	19,641	$	32,452	$	67,637