Goodwill and Purchased Intangible Assets - (Tables)

12 Months Ended

Jan. 01, 2022

Goodwill And Intangible Assets Disclosure [Abstract]

Changes in the Carrying Amount of Goodwill

The changes in the carrying amount of goodwill are as follows:

Balance at December 31, 2019	$	307,148
Goodwill adjustments (Note 3)		(516	)
Balance at December 26, 2020		306,632
Goodwill from Inspectrology acquisition (Note 3)		9,179
Balance at January 1, 2022	$	315,811

Schedule of Purchased Intangible Assets

Purchased intangible assets as of January 1, 2022 and December 26, 2020 are as follows:

	Gross Carrying Amount		Accumulated Amortization		Net
January 1, 2022
Finite-lived intangible assets:
Developed technology	$	377,997	$	155,976	$	222,021
Customer and distributor relationships		73,321		25,608		47,713
Trademarks and trade names		14,171		6,624		7,547
Total identifiable intangible assets	$	465,489	$	188,208	$	277,281
December 26, 2020
Finite-lived intangible assets:
Developed technology	$	326,877	$	110,851	$	216,026
Customer and distributor relationships		69,261		20,654		48,607
Trademarks and trade names		12,461		5,337		7,124
Total finite-lived intangible assets		408,599		136,842		271,757
In-process research and development		46,600		—		46,600
Total identifiable intangible assets	$	455,199	$	136,842	$	318,357