Consolidated Balance Sheets - USD ($) $ in Thousands	Apr. 01, 2023	Dec. 31, 2022
Current Assets
Cash and cash equivalents	$ 340,987	$ 339,581
Short-term investments	47,168	53,955
Trade accounts receivable, less allowance of $12,577 and $12,121	899,811	967,793
Other receivables, including advances to independent contractors, less allowance of $11,758 and $10,579	53,242	56,235
Other current assets	12,684	21,826
Total current assets	1,353,892	1,439,390
Operating property, less accumulated depreciation and amortization of $406,648 and $393,274	306,224	314,990
Goodwill	41,726	41,220
Other assets	136,018	136,279
Total assets	1,837,860	1,931,879
Current Liabilities
Cash overdraft	66,195	92,953
Accounts payable	490,304	527,372
Current maturities of long-term debt	33,801	36,175
Insurance claims	50,064	50,836
Dividends payable	0	71,854
Other current liabilities	100,980	98,945
Total current liabilities	741,344	878,135
Long-term debt, excluding current maturities	60,191	67,225
Insurance claims	57,974	58,268
Deferred income taxes and other noncurrent liabilities	42,699	41,030
Shareholders' Equity
Common stock, $0.01 par value, authorized 160,000,000 shares, issued 68,483,963 and 68,382,310 shares	685	684
Additional paid-in capital	253,138	258,487
Retained earnings	2,703,349	2,635,960
Cost of 32,550,852 and 32,455,300 shares of common stock in treasury	(2,009,327)	(1,992,886)
Accumulated other comprehensive loss	(12,193)	(15,024)
Total shareholders' equity	935,652	887,221
Total liabilities and shareholders' equity	$ 1,837,860	$ 1,931,879