Goodwill and Purchased Intangible Assets (Tables)

6 Months Ended

Jun. 26, 2021

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 26, 2020	$	306,632
Goodwill acquired during the period (Note 2)		7,259
Balance at June 26, 2021	$	313,891

Schedule of Purchased Intangible Assets

Intangible Assets

Purchased intangible assets as of June 26, 2021 and December 26, 2020 are as follows:

	Gross Carrying Amount		Accumulated Amortization		Net
June 26, 2021
Finite-lived intangibles:
Developed technology	$	331,747	$	132,270	$	199,477
Customer and distributor relationships		74,701		23,267		51,434
Trademarks and trade names		14,361		5,986		8,375
Total finite-lived intangible assets		420,809		161,523		259,286
In-process research and development		46,600		—		46,600
Total identifiable intangible assets	$	467,409	$	161,523	$	305,886
December 26, 2020
Finite-lived intangibles:
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

Schedule of Estimated Future Amortization Expenses

Assuming no change in the gross carrying value of identifiable intangible assets and estimated lives, future estimated amortization expenses are:

	Expected Amortization
Fiscal Year:	Expense
2021 (remainder)	$	24,548
2022		48,830
2023		48,355
2024		42,669
2025		26,119
2026		24,926
Thereafter		43,839
Total	$	259,286