Goodwill and Other Purchased Intangible Assets (Tables)

9 Months Ended

Sep. 27, 2014

Goodwill and Intangible Assets Disclosure [Abstract]

Changes in Carrying Value of Goodwill by Reportable Segment

Changes in the carrying value of goodwill by reportable segment during the year ended December 28, 2013 and the nine-month period ended September 27, 2014 were as follows (in thousands):

	Semiconductor			Microwave			Total
	Equipment			Communications			Goodwill
Balance, December 29, 2012	$	55,520		$	3,236		$	58,756
Additions net of adjustments		10,930			—			10,930
Impact of currency exchange		1,533			94			1,627
Balance, December 28, 2013		67,983			3,330			71,313
Impact of currency exchange		(3,257	)		(191	)		(3,448	)
Balance, September 27, 2014	$	64,726		$	3,139		$	67,865

Purchased Intangible Assets, Subject to Amortization

Purchased intangible assets, subject to amortization are as follows (in thousands):

	September 27, 2014						December 28, 2013
	Gross Carrying		Accumulated		Remaining		Gross Carrying		Accumulated
	Amount		Amortization		Useful Life		Amount		Amortization
Rasco technology	$	31,084	$	22,614		2.3 years	$	33,689	$	21,319
Ismeca technology		28,031		6,245		6.3 years		29,915		3,809
Duma technology		864		624		0.9 years		864		408
	$	59,979	$	29,483			$	64,468	$	25,536