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Cash and Investments (Tables)

12 Months Ended

Dec. 29, 2023

Investments, Debt and Equity Securities [Abstract]

Schedule of Investments by Security Type

Cash, cash equivalents and investments consisted of the following (in thousands):

			December 31, 2023
			Amortized Cost						Gross Unrealized Gains						Gross Unrealized Losses						Fair Value
Debt securities available-for-sale:
Commercial paper			$	214,016					$	—					$	—					$	214,016
Corporate bonds			870,870						1,652						(4,277)						868,245
U.S. Treasury and government-sponsored enterprises			409,157						414						(2,250)						407,321
Municipal bonds			7,880						10						(49)						7,841
Total debt securities available-for-sale			1,501,923						2,076						(6,576)						1,497,423
Money market funds			154,287						—						—						154,287
Certificates of deposit			72,309						—						—						72,309
Total cash, cash equivalents and investments			$	1,728,519					$	2,076					$	(6,576)					$	1,724,019

			December 31, 2022
			Amortized Cost						Gross Unrealized Gains						Gross Unrealized Losses						Fair Value
Debt securities available-for-sale:
Commercial paper			$	722,018					$	—					$	—					$	722,018
Corporate bonds			810,439						541						(13,132)						797,848
U.S. Treasury and government-sponsored enterprises			338,218						48						(5,679)						332,587
Municipal bonds			16,385						—						(223)						16,162
Total debt securities available-for-sale			1,887,060						589						(19,034)						1,868,615
Cash			41						—						—						41
Money market funds			94,344						—						—						94,344
Certificates of deposit			103,681						—						—						103,681
Total cash, cash equivalents and investments			$	2,085,126					$	589					$	(19,034)					$	2,066,681

Schedule of Fair Value and Gross Unrealized Losses of Investments Available-for-Sale in an Unrealized Loss Position

The fair value and gross unrealized losses on debt securities available-for-sale in an unrealized loss position were as follows (in thousands):

			December 31, 2023
			In an Unrealized Loss Position Less than 12 Months												In an Unrealized Loss Position 12 Months or Greater												Total
			Fair Value						Gross Unrealized Losses						Fair Value						Gross Unrealized Losses						Fair Value						Gross Unrealized Losses
Corporate bonds			$	255,958					$	(847)					$	281,837					$	(3,430)					$	537,795					$	(4,277)
U.S. Treasury and government-sponsored enterprises			163,339						(406)						155,452						(1,844)						318,791						(2,250)
Municipal bonds			—						—						5,951						(49)						5,951						(49)
Total			$	419,297					$	(1,253)					$	443,240					$	(5,323)					$	862,537					$	(6,576)

			December 31, 2022
			In an Unrealized Loss Position Less than 12 Months												In an Unrealized Loss Position 12 Months or Greater												Total
			Fair Value						Gross Unrealized Losses						Fair Value						Gross Unrealized Losses						Fair Value						Gross Unrealized Losses
Corporate bonds			$	485,685					$	(7,261)					$	221,026					$	(5,871)					$	706,711					$	(13,132)
U.S. Treasury and government-sponsored enterprises			298,414						(5,575)						9,893						(104)						308,307						(5,679)
Municipal bonds			9,091						(134)						6,701						(89)						15,792						(223)
Total			$	793,190					$	(12,970)					$	237,620					$	(6,064)					$	1,030,810					$	(19,034)

Schedule of Fair Value of Cash Equivalents and Investments by Contractual Maturity

The fair values of debt securities available-for-sale by contractual maturity were as follows (in thousands):

			December 31,
			2023						2022
Maturing in one year or less			$	768,706					$	1,114,884
Maturing after one year through five years			728,717						753,731
Total debt securities available-for-sale			$	1,497,423					$	1,868,615

X

- Definition

Tabular disclosure of fair value of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), in unrealized loss position, without allowance for credit loss. Includes beneficial interest in securitized financial asset.

+ References

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Topic 326
-SubTopic 30
-Name Accounting Standards Codification
-Section 55
-Paragraph 8
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479081/326-30-55-8

Reference 2: http://fasb.org/us-gaap/role/ref/otherTransitionRef
-Topic 320
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 6
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147481800/320-10-50-6

Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 326
-SubTopic 30
-Name Accounting Standards Codification
-Section 50
-Paragraph 4
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479106/326-30-50-4

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Tabular disclosure of unrealized gains and losses on investments.

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