Marketable Securities (Tables)

3 Months Ended

Mar. 26, 2022

Investments, Debt and Equity Securities [Abstract]

Schedule Of Marketable Securities

			Gross		Gross
(amounts in thousands)	Amortized		Unrealized		Unrealized		Fair
March 26, 2022	Cost		Holding Gains		Holding Losses		Value
Available-for-sale:
Level 1
Equity securities							$	6,295
Level 2
Corporate and municipal bonds	$	152,238	$	2,012	$	(6,648)		147,602
Commercial Paper		44,915		6		(62)		44,859
	$	197,153	$	2,018	$	(6,710)	$	198,756

			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	$	57,746	$	57,494
Due after one year through five years		89,527		87,916
Due after five years through ten years		49,880		47,051
	$	197,153	$	192,461