Goodwill and Acquired Intangible Assets (Tables)

6 Months Ended

Jul. 02, 2017

Changes in Carrying Amount of Goodwill by Segment

The changes in the carrying amount of goodwill by reportable segments for the six months ended July 2, 2017, were as follows:

	Industrial Automation		System Test			Wireless Test			Semiconductor Test			Total
	(in thousands)
Balance at December 31, 2016
Goodwill	$	204,851	$	158,699		$	361,819		$	260,540		$	985,909
Accumulated impairment losses		—		(148,183	)		(353,843	)		(260,540	)		(762,566	)
		204,851		10,516			7,976			—			223,343
Foreign currency translation adjustment		18,872		—			—			—			18,872
Balance at July 2, 2017
Goodwill		223,723		158,699			361,819			260,540			1,004,781
Accumulated impairment losses		—		(148,183	)		(353,843	)		(260,540	)		(762,566	)
	$	223,723	$	10,516		$	7,976		$	—		$	242,215

Schedule of Estimated Acquired Intangible Asset Amortization Expense

Estimated acquired intangible asset amortization expense for each of the five succeeding fiscal years is as follows:

Year	Amortization Expense
	(in thousands)
2017 (remainder)		14,353
2018		28,527
2019		24,604
2020		10,800
2021		3,621
Thereafter		8,698

Wireless Test

Schedule of Amortizable Acquired Intangible Assets

Amortizable acquired intangible assets consist of the following and are included in acquired intangible assets, net on the balance sheet:

	July 2, 2017
	Gross Carrying Amount		Accumulated Amortization			Cumulative Foreign Currency Translation Adjustment			Net Carrying Amount
	(in thousands)
Developed technology	$	270,877	$	(215,973	)	$	(524	)	$	54,380
Customer relationships		92,741		(81,294	)		(55	)		11,392
Tradenames and trademarks		50,100		(25,233	)		(136	)		24,731
Non-compete agreement		320		(220	)		—			100
Customer backlog		170		(170	)		—			—
Total acquired intangible assets	$	414,208	$	(322,890	)	$	(715	)	$	90,603

	December 31, 2016
	Gross Carrying Amount		Accumulated Amortization			Cumulative Foreign Currency Translation Adjustment			Net Carrying Amount
	(in thousands)
Developed technology	$	270,877	$	(206,376	)	$	(5,093	)	$	59,408
Customer relationships		92,741		(76,707	)		(538	)		15,496
Tradenames and trademarks		50,100		(23,435	)		(1,308	)		25,357
Non-compete agreement		320		(180	)		—			140
Customer backlog		170		(170	)		—			—
Total acquired intangible assets	$	414,208	$	(306,868	)	$	(6,939	)	$	100,401