Goodwill and Acquired Intangible Assets (Tables)

9 Months Ended

Oct. 03, 2021

Changes in Carrying Amount of Goodwill by Segment

The changes in the carrying amount of goodwill by reportable segments for the nine months ended October 3, 2021, were as follows:

	Industrial Automation			System Test			Wireless Test			Semiconductor Test			Total
	(in thousands)
Balance at December 31, 2020
Goodwill	$	433,752		$	158,699		$	361,819		$	262,155		$	1,216,425
Accumulated impairment losses		—			(148,183	)		(353,843	)		(260,540	)		(762,566	)
		433,752			10,516			7,976			1,615			453,859
Foreign currency translation adjustment		(20,373	)		—			—			(88	)		(20,461	)
Balance at October 3, 2021
Goodwill		413,379			158,699			361,819			262,067			1,195,964
Accumulated impairment losses		—			(148,183	)		(353,843	)		(260,540	)		(762,566	)
	$	413,379		$	10,516		$	7,976		$	1,527		$	433,398

Schedule of Estimated Intangible Assets Amortization Expense

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

Year	Amortization Expense
	(in thousands)
2021 (remainder)	$	5,199
2022		20,299
2023		19,815
2024		19,507
2025		11,645
Thereafter		5,212

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:

	Gross Carrying Amount		Accumulated Amortization			Foreign Currency Translation Adjustment			Net Carrying Amount
Balance at October 3, 2021		(in thousands)
Developed technology	$	272,547	$	(220,147	)	$	(3,489	)	$	48,911
Customer relationships		57,739		(48,351	)		174			9,562
Tradenames and trademarks		70,120		(46,643	)		(273	)		23,204
Total intangible assets	$	400,406	$	(315,141	)	$	(3,588	)	$	81,677
Balance, December 31, 2020
Developed technology	$	272,547	$	(210,479	)	$	(1,610	)	$	60,458
Customer relationships		66,239		(54,524	)		305			12,020
Tradenames and trademarks		70,120		(42,344	)		685			28,461
Total intangible assets	$	408,906	$	(307,347	)	$	(620	)	$	100,939