Marketable Securities - Available-for-sale Securities - Continuous Loss Position (Details) - USD ($) $ in Thousands	Sep. 25, 2022	Dec. 26, 2021
Total short-term AFS securities
Short-term AFS securities
Fair value, less than 12 months	$ 64,823	$ 116,164
Gross unrealized losses, less than 12 months	(1,517)	(114)
Fair value, greater than 12 months	33,270	0
Gross unrealized losses, greater than 12 months	(967)	0
Fair value, total	98,093	116,164
Gross unrealized losses, total	(2,484)	(114)
Total long-term AFS securities
Long-term AFS securities
Fair value, less than 12 months	96,079	396,347
Gross unrealized losses, less than 12 months	(5,856)	(2,720)
Fair value, greater than 12 months	79,866	0
Gross unrealized losses, greater than 12 months	(4,868)	0
Fair value, total	175,945	396,347
Gross unrealized losses, total	(10,724)	(2,720)
Corporate debt securities
Short-term AFS securities
Fair value, less than 12 months	30,120	53,148
Gross unrealized losses, less than 12 months	(736)	(69)
Fair value, greater than 12 months	7,169	0
Gross unrealized losses, greater than 12 months	(244)	0
Fair value, total	37,289	53,148
Gross unrealized losses, total	(980)	(69)
Long-term AFS securities
Fair value, less than 12 months	72,968	224,022
Gross unrealized losses, less than 12 months	(4,459)	(1,858)
Fair value, greater than 12 months	53,025	0
Gross unrealized losses, greater than 12 months	(3,360)	0
Fair value, total	125,993	224,022
Gross unrealized losses, total	(7,819)	(1,858)
U.S. Treasury securities
Short-term AFS securities
Fair value, less than 12 months	23,655	61,018
Gross unrealized losses, less than 12 months	(439)	(43)
Fair value, greater than 12 months	12,241	0
Gross unrealized losses, greater than 12 months	(254)	0
Fair value, total	35,896	61,018
Gross unrealized losses, total	(693)	(43)
Long-term AFS securities
Fair value, less than 12 months	22,181	119,146
Gross unrealized losses, less than 12 months	(1,328)	(549)
Fair value, greater than 12 months	16,362	0
Gross unrealized losses, greater than 12 months	(987)	0
Fair value, total	38,543	119,146
Gross unrealized losses, total	(2,315)	(549)
Municipal securities
Short-term AFS securities
Fair value, less than 12 months	6,215	1,998
Gross unrealized losses, less than 12 months	(175)	(2)
Fair value, greater than 12 months	2,463	0
Gross unrealized losses, greater than 12 months	(61)	0
Fair value, total	8,678	1,998
Gross unrealized losses, total	(236)	(2)
Long-term AFS securities
Fair value, less than 12 months		13,933
Gross unrealized losses, less than 12 months		(61)
Fair value, greater than 12 months		0
Gross unrealized losses, greater than 12 months		0
Fair value, total		13,933
Gross unrealized losses, total		(61)
U.S. governmental agency securities
Short-term AFS securities
Fair value, less than 12 months	4,833
Gross unrealized losses, less than 12 months	(167)
Fair value, greater than 12 months	11,397
Gross unrealized losses, greater than 12 months	(408)
Fair value, total	16,230
Gross unrealized losses, total	(575)
Long-term AFS securities
Fair value, less than 12 months	930	39,246
Gross unrealized losses, less than 12 months	(69)	(252)
Fair value, greater than 12 months	10,479	0
Gross unrealized losses, greater than 12 months	(521)	0
Fair value, total	11,409	39,246
Gross unrealized losses, total	$ (590)	$ (252)