Information Regarding Reportable Business Segments (Detail) - USD ($) $ in Thousands |
3 Months Ended | 6 Months Ended | |||
|---|---|---|---|---|---|
Jun. 28, 2025 |
Jun. 29, 2024 |
Jun. 28, 2025 |
Jun. 29, 2024 |
Dec. 28, 2024 |
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| Segment Reporting Information [Line Items] | |||||
| Revenue | $ 1,211,383 | $ 1,225,005 | $ 2,363,885 | $ 2,396,048 | |
| Gross revenue | 1,252,897 | 1,266,282 | 2,416,978 | 2,449,394 | |
| Investment income | 3,729 | 3,654 | 7,327 | 7,066 | |
| Purchased transportation | 941,411 | 950,058 | 1,839,289 | 1,855,579 | |
| Commissions to agents | 99,522 | 99,816 | 192,836 | 197,098 | |
| Other operating costs, net of gains on asset sales/dispositions | 19,595 | 14,135 | 31,424 | 28,994 | |
| Insurance and claims | 71,963 | 68,441 | 123,394 | 106,778 | |
| Selling, general and administrative | 55,706 | 54,939 | 117,288 | 111,361 | |
| Depreciation and amortization | 12,149 | 14,488 | 24,375 | 28,630 | |
| Operating income | 56,280 | 68,059 | 95,699 | 128,020 | |
| Interest and debt expense (income) | 698 | (1,675) | 539 | (3,286) | |
| Income before income taxes | 55,582 | 69,734 | 95,160 | 131,306 | |
| Goodwill | 41,399 | 41,607 | 41,399 | 41,607 | $ 40,933 |
| Related Party [Member] | |||||
| Segment Reporting Information [Line Items] | |||||
| Revenue | 41,514 | 41,277 | 53,093 | 53,346 | |
| Transportation Logistics | |||||
| Segment Reporting Information [Line Items] | |||||
| Revenue | 1,196,687 | 1,209,075 | 2,334,432 | 2,363,607 | |
| Gross revenue | 1,196,687 | 1,209,075 | 2,334,432 | 2,363,607 | |
| Purchased transportation | 941,411 | 950,058 | 1,839,289 | 1,855,579 | |
| Commissions to agents | 99,522 | 99,816 | 192,836 | 197,098 | |
| Other operating costs, net of gains on asset sales/dispositions | 19,595 | 14,135 | 31,424 | 28,994 | |
| Insurance and claims | 29,517 | 27,984 | 63,373 | 54,837 | |
| Selling, general and administrative | 52,559 | 51,823 | 111,985 | 105,017 | |
| Depreciation and amortization | 12,149 | 14,488 | 24,375 | 28,630 | |
| Operating income | 41,934 | 50,771 | 71,150 | 93,452 | |
| Goodwill | 41,399 | 41,607 | 41,399 | 41,607 | |
| Insurance | |||||
| Segment Reporting Information [Line Items] | |||||
| Revenue | 14,696 | 15,930 | 29,453 | 32,441 | |
| Gross revenue | 56,210 | 57,207 | 82,546 | 85,787 | |
| Investment income | 3,729 | 3,654 | 7,327 | 7,066 | |
| Insurance and claims | 42,446 | 40,457 | 60,021 | 51,941 | |
| Selling, general and administrative | 3,147 | 3,116 | 5,303 | 6,344 | |
| Operating income | 14,346 | 17,288 | 24,549 | 34,568 | |
| Insurance | Related Party [Member] | |||||
| Segment Reporting Information [Line Items] | |||||
| Revenue | $ 41,514 | $ 41,277 | $ 53,093 | $ 53,346 | |
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- Definition Gross revenue. No definition available.
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- Definition Insurance and claims. No definition available.
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- Definition Interest and debt (income) expense. No definition available.
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- Definition The cost of purchased transportation and transportation-related services of third party capacity providers of various modes for the carriage of customer freight during the period. No definition available.
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- Definition The current period expense charged against earnings on long-lived, physical assets not used in production, and which are not intended for resale, to allocate or recognize the cost of such assets over their useful lives; or to record the reduction in book value of an intangible asset over the benefit period of such asset; or to reflect consumption during the period of an asset that is not used in production. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Amount, after accumulated impairment loss, of asset representing future economic benefit arising from other asset acquired in business combination or from joint venture formation or both, that is not individually identified and separately recognized. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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- Definition Amount of income (loss) from continuing operations, including income (loss) from equity method investments, before deduction of income tax expense (benefit), and income (loss) attributable to noncontrolling interest. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition Amount of operating interest income, including, but not limited to, amortization and accretion of premiums and discounts on securities. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition The net result for the period of deducting operating expenses from operating revenues. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition The total amount of other operating cost and expense items that are associated with the entity's normal revenue producing operation. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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- Definition Amount of revenue recognized from goods sold, services rendered, insurance premiums, or other activities that constitute an earning process. Includes, but is not limited to, investment and interest income before deduction of interest expense when recognized as a component of revenue, and sales and trading gain (loss). Reference 1: http://www.xbrl.org/2003/role/exampleRef
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- Definition Primarily represents commissions incurred in the period based upon the sale by commissioned employees or third parties of the entity's goods or services, and fees for sales assistance or product enhancements performed by third parties (such as a distributor or value added reseller). Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. No definition available.
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- Definition The aggregate total costs related to selling a firm's product and services, as well as all other general and administrative expenses. Direct selling expenses (for example, credit, warranty, and advertising) are expenses that can be directly linked to the sale of specific products. Indirect selling expenses are expenses that cannot be directly linked to the sale of specific products, for example telephone expenses, Internet, and postal charges. General and administrative expenses include salaries of non-sales personnel, rent, utilities, communication, etc. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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