Marketable Securities (Tables)

9 Months Ended

Sep. 24, 2022

Investments, Debt and Equity Securities [Abstract]

Schedule Of Marketable Securities

			Gross		Gross
(amounts in thousands)	Amortized		Unrealized		Unrealized		Fair
September 24, 2022	Cost		Holding Gains		Holding Losses		Value
Available-for-sale:
Level 1
Equity securities							$	4,920
Level 2
Corporate and municipal bonds	$	149,483	$	1,210	$	(11,426)		139,267
Commercial Paper		26,892		57		—		26,949
	$	176,375	$	1,267	$	(11,426)	$	171,136

			Gross		Gross
(amounts in thousands)	Amortized		Unrealized		Unrealized		Fair
December 25, 2021	Cost		Holding Gains		Holding Losses		Value
Available-for-sale:
Level 1
Equity securities							$	6,509
Level 2
Corporate and municipal bonds	$	151,947	$	4,753	$	(2,384)		154,315
Commercial Paper		44,931		2		(13)		44,920
	$	196,878	$	4,755	$	(2,397)	$	205,744

Schedule Of Maturities Of Marketable Securities

	Amortized		Fair
(amounts in thousands)	Cost		Value
Available-for-sale:
Due within one year	$	59,607	$	58,578
Due after one year through five years		72,343		68,242
Due after five years through ten years		32,235		28,611
Due after ten years		12,190		10,785
	$	176,375	$	166,216