Goodwill and Acquired Intangible Assets (Tables)

9 Months Ended

Oct. 01, 2023

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 1, 2023, were as follows:

	Robotics			Wireless Test			Semiconductor Test			System Test			Total
	(in thousands)
Balance at December 31, 2022
Goodwill	$	383,166		$	361,819		$	262,077		$	158,699		$	1,165,761
Accumulated impairment losses		—			(353,843	)		(260,540	)		(148,183	)		(762,566	)
Total Goodwill		383,166			7,976			1,537			10,516			403,195
Foreign currency translation adjustment		(2,079	)		—			24			—			(2,055	)
Balance at October 1, 2023
Goodwill		381,087			361,819			262,101			158,699			1,163,706
Accumulated impairment losses		—			(353,843	)		(260,540	)		(148,183	)		(762,566	)
Total Goodwill	$	381,087		$	7,976		$	1,561		$	10,516		$	401,140

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 (1)		Accumulated Amortization (1)			Foreign Currency Translation Adjustment			Net Carrying Amount
	(in thousands)
Balance at October 1, 2023
Developed technology	$	267,708	$	(240,155	)	$	(5,927	)	$	21,626
Customer relationships		52,109		(47,276	)		190			5,023
Tradenames and trademarks		59,007		(44,966	)		(1,525	)		12,516
Total intangible assets	$	378,824	$	(332,397	)	$	(7,262	)	$	39,165
Balance at December 31, 2022
Developed technology	$	270,967	$	(234,208	)	$	(5,935	)	$	30,824
Customer relationships		57,739		(51,186	)		172			6,725
Tradenames and trademarks		59,387		(41,930	)		(1,528	)		15,929
Total intangible assets	$	388,093	$	(327,324	)	$	(7,291	)	$	53,478

(1)In 2023, $9.3 million of amortizable intangible assets became fully amortized and have been eliminated from the gross carrying amount and accumulated amortization.

Schedule of Estimated Intangible Assets Amortization Expense

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

Year	Amortization Expense
	(in thousands)
2023	$	4,630
2024		18,469
2025		11,202
2026		2,343
2027		1,127
Thereafter		1,394