Consolidated Statements of Income - USD ($) $ in Thousands		12 Months Ended
		Dec. 28, 2024	Dec. 30, 2023	Dec. 31, 2022
Revenue		$ 4,819,245	$ 5,303,322	$ 7,436,562
Investment income		14,810	10,141	3,162
Costs and expenses:
Purchased transportation		3,745,241	4,068,262	5,804,017
Commissions to agents		392,751	462,668	614,865
Other operating costs, net of gains on asset sales/dispositions		58,781	54,191	45,192
Insurance and claims		113,929	114,241	125,835
Selling, general and administrative		217,708	211,799	221,279
Depreciation and amortization		56,738	58,153	57,453
Total costs and expenses		4,585,148	4,969,314	6,868,641
Operating income		248,907	344,149	571,083
Interest and debt (income) expense	[1]	(5,419)	(3,946)	3,620
Income before income taxes		254,326	348,095	567,463
Income taxes		58,380	83,701	136,549
Net income		$ 195,946	$ 264,394	$ 430,914
Basic earnings per share		$ 5.51	$ 7.36	$ 11.76
Diluted earnings per share		$ 5.51	$ 7.36	$ 11.76
Average basic shares outstanding		35,538,000	35,920,000	36,633,000
Average diluted shares outstanding		35,538,000	35,920,000	36,633,000
Dividends per common share		$ 3.38	$ 3.26	$ 3.1

[1] Interest and debt (income) expense includes (1) interest income earned on cash balances held by the transportation logistics segment of $9,495, $7,811 and $900 in 2024, 2023 and 2022, respectively and (2) consolidated total interest expense of $4,076, $3,865 and $4,520 (1) in 2024, 2023 and 2022, respectively.