Balance Sheet Components - Marketable Securities (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 25, 2021
Debt Securities, Available-for-sale [Abstract]
Amortized Cost	$ 131,251	$ 125,334
Gross Unrealized Gains	0	30
Gross Unrealized Losses	(2,245)	(309)
Fair Value	129,006	125,055
Amortized Cost
Due in one year or less	77,663	75,804
Due after one year to five years	53,588	49,530
Amortized Cost	131,251	125,334
Fair Value
Due in one year or less	76,902	75,778
Due after one year to five years	52,104	49,277
Fair Value	129,006	125,055
U.S. treasuries
Debt Securities, Available-for-sale [Abstract]
Amortized Cost	25,498	39,128
Gross Unrealized Gains	0	0
Gross Unrealized Losses	(479)	(143)
Fair Value	25,019	38,985
Amortized Cost
Amortized Cost	25,498	39,128
Fair Value
Fair Value	25,019	38,985
Commercial paper
Debt Securities, Available-for-sale [Abstract]
Amortized Cost	24,893	32,174
Gross Unrealized Gains	0	0
Gross Unrealized Losses	(53)	(13)
Fair Value	24,840	32,161
Amortized Cost
Amortized Cost	24,893	32,174
Fair Value
Fair Value	24,840	32,161
Corporate bonds
Debt Securities, Available-for-sale [Abstract]
Amortized Cost	68,845	52,832
Gross Unrealized Gains	0	29
Gross Unrealized Losses	(1,449)	(151)
Fair Value	67,396	52,710
Amortized Cost
Amortized Cost	68,845	52,832
Fair Value
Fair Value	67,396	52,710
Certificates of deposit
Debt Securities, Available-for-sale [Abstract]
Amortized Cost	720	1,200
Gross Unrealized Gains	0	1
Gross Unrealized Losses	(14)	(2)
Fair Value	706	1,199
Amortized Cost
Amortized Cost	720	1,200
Fair Value
Fair Value	706	$ 1,199
U.S. agency securities
Debt Securities, Available-for-sale [Abstract]
Amortized Cost	11,295
Gross Unrealized Gains	0
Gross Unrealized Losses	(250)
Fair Value	11,045
Amortized Cost
Amortized Cost	11,295
Fair Value
Fair Value	$ 11,045

Amount, before tax, of unrealized gain in accumulated other comprehensive income (AOCI) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

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