Marketable Securities - Schedule of Marketable Securities by Category (Details) - USD ($) $ in Thousands	Jan. 01, 2022	Dec. 26, 2020
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	$ 342,198	$ 236,649
Gross Unrealized Holding Gains	71	372
Gross Unrealized Holding Losses	528	19
Fair Value	341,741	237,002
Municipal notes and bonds [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	171,203	124,387
Gross Unrealized Holding Gains	38	257
Gross Unrealized Holding Losses	261	4
Fair Value	170,980	124,640
Asset-backed securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	2,009	11,679
Gross Unrealized Holding Gains	0	29
Gross Unrealized Holding Losses	0	0
Fair Value	2,009	11,708
Certificates of deposits [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	33,200	36,349
Gross Unrealized Holding Gains	2	24
Gross Unrealized Holding Losses	10	0
Fair Value	33,192	36,373
Commercial paper [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	73,152	32,690
Gross Unrealized Holding Gains	2	12
Gross Unrealized Holding Losses	41	3
Fair Value	73,113	32,699
Corporate bonds [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	62,634	31,544
Gross Unrealized Holding Gains	29	50
Gross Unrealized Holding Losses	216	12
Fair Value	$ 62,447	$ 31,582

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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