Consolidated Statements of Cash Flows - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2023	Sep. 24, 2022
OPERATING ACTIVITIES
Net income	$ 206,407	$ 337,612
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	44,498	42,627
Non-cash interest charges	198	290
Provisions for losses on trade and other accounts receivable	10,509	8,346
Gains on sales/disposals of operating property	(3,846)	(1,290)
Deferred income taxes, net	(5,595)	(2,597)
Stock-based compensation	4,270	9,409
Changes in operating assets and liabilities:
Decrease in trade and other accounts receivable	145,655	26,170
Increase in other assets	(13,115)	(17,669)
(Decrease) increase in accounts payable	(62,652)	39,924
Decrease in other liabilities	(15,734)	(23,932)
(Decrease) increase in insurance claims	(6,810)	17,491
NET CASH PROVIDED BY OPERATING ACTIVITIES	303,785	436,381
INVESTING ACTIVITIES
Sales and maturities of investments	93,326	27,568
Purchases of investments	(86,115)	(30,490)
Purchases of operating property	(15,394)	(21,096)
Proceeds from sales of operating property	6,631	2,669
Purchase of non-marketable securities	0	(4,999)
NET CASH USED BY INVESTING ACTIVITIES	(1,552)	(26,348)
FINANCING ACTIVITIES
Decrease in cash overdraft	(44,886)	(18,792)
Dividends paid	(105,302)	(104,893)
Payment for debt issue costs	0	(1,080)
Proceeds from exercises of stock options	28	56
Taxes paid in lieu of shares issued related to stock-based compensation plans	(9,186)	(10,427)
Purchases of common stock	(15,433)	(285,983)
Principal payments on finance lease obligations	(28,017)	(29,075)
NET CASH USED BY FINANCING ACTIVITIES	(202,796)	(450,194)
Effect of exchange rate changes on cash and cash equivalents	643	(1,614)
Increase (decrease) in cash, cash equivalents and restricted cash	100,080	(41,775)
Cash, cash equivalents and restricted cash at beginning of period	339,581	219,571
Cash and cash equivalents at end of period	$ 439,661	$ 177,796