Consolidated Statements of Cash Flows - USD ($) $ in Thousands	12 Months Ended
	Dec. 28, 2024	Dec. 30, 2023	Dec. 31, 2022
OPERATING ACTIVITIES
Net income	$ 195,946	$ 264,394	$ 430,914
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	56,738	58,153	57,453
Non-cash interest charges	263	263	355
Provisions for losses on trade and other accounts receivable	18,266	14,032	12,220
Gains on sales/disposals of operating property	(1,597)	(4,574)	(2,944)
Deferred income taxes, net	(6,990)	(7,709)	(5,360)
Stock-based compensation	3,435	4,282	12,399
Changes in operating assets and liabilities:
Decrease in trade and other accounts receivable	37,834	222,895	219,190
Increase in other assets	(16,094)	(2,544)	(5,938)
Decrease in accounts payable	(12,355)	(131,392)	(76,758)
Increase (decrease) in other liabilities	8,509	(15,795)	(31,571)
Increase (decrease) in insurance claims	2,606	(8,357)	12,699
NET CASH PROVIDED BY OPERATING ACTIVITIES	286,561	393,648	622,659
INVESTING ACTIVITIES
Sales and maturities of investments	112,065	112,555	41,198
Purchases of investments	(101,312)	(101,639)	(40,202)
Purchases of operating property	(30,998)	(25,688)	(26,005)
Proceeds from sales of operating property	9,746	8,294	5,236
Purchase of non-marketable securities	0	0	(4,999)
NET CASH USED BY INVESTING ACTIVITIES	(10,499)	(6,478)	(24,772)
FINANCING ACTIVITIES
Decrease in cash overdraft	(508)	(31,412)	(23,525)
Dividends paid	(120,476)	(117,130)	(115,671)
Payment for debt issue costs	0	0	(1,080)
Proceeds from exercises of stock options	0	28	68
Taxes paid in lieu of shares issued related to stock-based compensation plans	(3,928)	(9,185)	(10,428)
Purchases of common stock	(81,400)	(53,919)	(285,983)
Principal payments on finance lease obligations	(31,027)	(36,353)	(39,063)
NET CASH USED BY FINANCING ACTIVITIES	(237,339)	(247,971)	(475,682)
Effect of exchange rate changes on cash and cash equivalents	(4,748)	2,263	(2,195)
Increase in cash, cash equivalents and restricted cash	33,975	141,462	120,010
Cash, cash equivalents and restricted cash at beginning of period	481,043	339,581	219,571
Cash, cash equivalents at end of period	$ 515,018	$ 481,043	$ 339,581