Consolidated Statements of Cash Flows - USD ($) $ in Thousands	3 Months Ended
	Mar. 26, 2022	Mar. 27, 2021
OPERATING ACTIVITIES
Net income	$ 124,839	$ 77,240
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	13,757	12,101
Non-cash interest charges	112	112
Provisions for losses on trade and other accounts receivable	2,626	547
Gains on sales/disposals of operating property	(165)	(24)
Deferred income taxes, net	1,324	(1,110)
Stock-based compensation	1,995	4,029
Changes in operating assets and liabilities:
(Increase) decrease in trade and other accounts receivable	(93,542)	33,440
Decrease in other assets	2,531	6,175
Increase in accounts payable	22,207	33,935
Increase in other liabilities	11,910	13,008
Increase (decrease) in insurance claims	7,371	(109,562)
NET CASH PROVIDED BY OPERATING ACTIVITIES	94,965	69,891
INVESTING ACTIVITIES
Sales and maturities of investments	12,420	7,957
Purchases of investments	(13,428)	(8,716)
Purchases of operating property	(3,609)	(4,076)
Proceeds from sales of operating property	643	500
NET CASH USED BY INVESTING ACTIVITIES	(3,974)	(4,335)
FINANCING ACTIVITIES
(Decrease) increase in cash overdraft	(20,263)	6
Dividends paid	(84,711)	(84,837)
Proceeds from exercises of stock options	56	77
Taxes paid in lieu of shares issued related to stock-based compensation plans	(10,183)	(1,241)
Borrowings on revolving credit facility	70,000	0
Purchases of common stock	(109,332)	0
Principal payments on finance lease obligations	(9,532)	(9,778)
NET CASH USED BY FINANCING ACTIVITIES	(163,965)	(95,773)
Effect of exchange rate changes on cash and cash equivalents	815	252
Decrease in cash, cash equivalents and restricted cash	(72,159)	(29,965)
Cash, cash equivalents and restricted cash at beginning of period	219,571	249,354
Cash, cash equivalents and restricted cash at end of period	$ 147,412	$ 219,389