Information Regarding Reportable Business Segments (Detail) - USD ($) $ in Thousands	3 Months Ended
	Mar. 30, 2024	Apr. 01, 2023	Dec. 30, 2023
Segment Reporting Information [Line Items]
Revenue	$ 1,171,043	$ 1,435,675
Investment income	3,412	1,368
Operating income	59,961	101,284
Expenditures on long-lived assets	9,281	6,233
Goodwill	42,381	41,726	$ 42,275
Related Party
Segment Reporting Information [Line Items]
Revenue	12,069	11,961
Transportation Logistics
Segment Reporting Information [Line Items]
Revenue	1,154,532	1,416,846
Operating income	42,681	86,162
Expenditures on long-lived assets	9,281	6,233
Goodwill	42,381	41,726
Insurance
Segment Reporting Information [Line Items]
Revenue	16,511	18,829
Investment income	3,412	1,368
Operating income	17,280	15,122
Insurance | Related Party
Segment Reporting Information [Line Items]
Revenue	$ 12,069	$ 11,961