Goodwill and Intangible Assets (Tables)

12 Months Ended

Dec. 25, 2021

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule of Goodwill

Goodwill by reportable segment was as follows (in thousands):

	Probe Cards		Systems		Total
Goodwill, as of December 28, 2019	$	172,482	$	26,714	$	199,196
Addition - FRT acquisition	—		975		975
Addition - Baldwin Park acquisition	5,590		—		5,590
Addition - HPD acquisition	—		4,654		4,654
Foreign currency translation	—		2,346		2,346
Goodwill, as of December 26, 2020	178,072		34,689		212,761
Addition - Baldwin Park acquisition	352		—		352
Addition - HPD acquisition	—		1,254		1,254
Foreign currency translation	—		(2,068)		(2,068)
Goodwill, as of December 25, 2021	$	178,424	$	33,875	$	212,299

Schedule of Finite-lived Intangible Assets

Intangible assets were as follows (in thousands):

	December 25, 2021						December 26, 2020
Other Intangible Assets	Gross		Accumulated Amortization		Net		Gross		Accumulated Amortization		Net
Existing developed technologies	$	172,259	$	148,784	$	23,475	$	176,265	$	137,754	$	38,511
Trade name	8,054		7,603		451		8,162		7,363		799
Customer relationships	51,270		39,254		12,016		52,488		33,378		19,110
Backlog	1,896		1,896		—		2,227		1,900		327
In-process research and development	400		—		400		400		—		400
	$	233,879	$	197,537	$	36,342	$	239,542	$	180,395	$	59,147

Schedule of Amortization Expense

Amortization expense was included in our Consolidated Statements of Income as follows (in thousands):

	Fiscal Year Ended
	December 25, 2021		December 26, 2020		December 28, 2019
Cost of revenues	$	12,269	$	21,609	$	20,036
Selling, general and administrative	6,478		6,382		7,636
	$	18,747	$	27,991	$	27,672

Schedule of Remaining Estimated Amortization Expense

The estimated future amortization of definite-lived intangible assets, excluding in-process research and development, is as follows (in thousands):

Fiscal Year	Amount
2022	$	9,488
2023	7,133
2024	4,533
2025	4,277
2026	3,241
Thereafter	7,270
Total	$	35,942