Goodwill and Acquired Intangible Assets (Tables)

9 Months Ended

Sep. 29, 2019

Changes in Carrying Amount of Goodwill by Segment

The changes in the carrying amount of goodwill by reportable segments for the nine months ended September 29, 2019 were as follows:

	Industrial Automation			System Test			Wireless Test			Semiconductor Test			Total
	(in thousands)
Balance at December 31, 2018
Goodwill	$	363,358		$	158,699		$	361,819		$	260,540		$	1,144,416
Accumulated impairment losses		—			(148,183	)		(353,843	)		(260,540	)		(762,566	)
		363,358			10,516			7,976			—			381,850
Lemsys acquisition		—			—			—			1,428			1,428
Foreign currency translation adjustment		(12,572	)		—			—			11			(12,561	)
Balance at September 29, 2019
Goodwill		350,786			158,699			361,819			261,979			1,133,283
Accumulated impairment losses		—			(148,183	)		(353,843	)		(260,540	)		(762,566	)
	$	350,786		$	10,516		$	7,976		$	1,439		$	370,717

Schedule of Estimated Intangible Assets Amortization Expense

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

	Amortization Expense
Year	(in thousands)
2019 (remainder)		8,694
2020		24,232
2021		14,340
2022		13,447
2023		12,976
Thereafter		22,884

Wireless Test

Schedule of Amortizable Intangible Assets

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

	September 29, 2019
	Gross Carrying Amount (1) (2)		Accumulated Amortization (2)			Foreign Currency Translation Adjustment			Net Carrying Amount
	(in thousands)
Developed technology	$	337,198	$	(272,317	)	$	(6,461	)	$	58,420
Customer relationships		100,313		(89,540	)		(562	)		10,211
Tradenames and trademarks		64,670		(35,368	)		(1,360	)		27,942
Total intangible assets	$	502,181	$	(397,225	)	$	(8,383	)	$	96,573

	December 31, 2018
	Gross Carrying Amount		Accumulated Amortization			Foreign Currency Translation Adjustment			Net Carrying Amount
	(in thousands)
Developed technology	$	336,308	$	(252,080	)	$	(4,079	)	$	80,149
Customer relationships		97,153		(83,448	)		(340	)		13,365
Tradenames and trademarks		64,420		(31,653	)		(799	)		31,968
Non-compete agreement		320		(320	)		—			—
Backlog		30		(30	)		—			—
Total intangible assets	$	498,231	$	(367,531	)	$	(5,218	)	$	125,482