Goodwill and Acquired Intangible Assets (Tables)

3 Months Ended

Apr. 04, 2021

Changes in Carrying Amount of Goodwill by Segment

The changes in the carrying amount of goodwill by reportable segments for the three months ended April 4, 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		(16,156	)		—			—			(102	)		(16,258	)
Balance at April 4, 2021
Goodwill		417,596			158,699			361,819			262,053			1,200,167
Accumulated impairment losses		—			(148,183	)		(353,843	)		(260,540	)		(762,566	)
	$	417,596		$	10,516		$	7,976		$	1,513		$	437,601

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)		15,896
2022		20,423
2023		19,941
2024		19,634
2025		11,699
Thereafter		5,257

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
	(in thousands)
Balance at April 4, 2021
Developed technology	$	272,547	$	(213,459	)	$	(3,198	)	$	55,890
Customer relationships		57,739		(47,209	)		150			10,680
Tradenames and trademarks		70,120		(43,716	)		(124	)		26,280
Total intangible assets	$	400,406	$	(304,384	)	$	(3,172	)	$	92,850
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