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Products, Services and Other Revenues (Tables) | 12 Months Ended
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Dec. 31, 2024
Revenue from Contract with Customer [Abstract] |
Schedule Of Revenues From Contracts With Customers By Type | The following table presents revenues from contracts with customers by type, all of which are included in products revenues and services and other revenues in the consolidated statements of income (loss) and comprehensive income (loss), along with a reconciliation to total products revenues and services and other revenues.
| Years Ended December 31,
| 2024 |  | 2023 |  | 2022
(dollars in thousands) | Markel Ventures |  | Other |  | Total |  | Markel Ventures |  | Other |  | Total |  | Markel Ventures |  | Other |  | Total
Products | $ | 2,607,581 |  |  | $ | — |  |  | $ | 2,607,581 |  |  | $ | 2,487,054 |  |  | $ | — |  |  | $ | 2,487,054 |  |  | $ | 2,379,399 |  |  | $ | — |  |  | $ | 2,379,399 |
Services | 2,315,822 |  |  | 10,193 |  |  | 2,326,015 |  |  | 2,262,861 |  |  | 10,341 |  |  | 2,273,202 |  |  | 2,184,196 |  |  | 43,875 |  |  | 2,228,071 |
Management fees | — |  |  | 97,226 |  |  | 97,226 |  |  | — |  |  | 99,509 |  |  | 99,509 |  |  | — |  |  | 79,209 |  |  | 79,209 |
Total revenues from contracts with customers | 4,923,403 |  |  | 107,419 |  |  | 5,030,822 |  |  | 4,749,915 |  |  | 109,850 |  |  | 4,859,765 |  |  | 4,563,595 |  |  | 123,084 |  |  | 4,686,679 |
Leasing revenues | 176,293 |  |  | — |  |  | 176,293 |  |  | 188,904 |  |  | — |  |  | 188,904 |  |  | 157,552 |  |  | — |  |  | 157,552 |
Fronting fees | — |  |  | 187,480 |  |  | 187,480 |  |  | — |  |  | 154,838 |  |  | 154,838 |  |  | — |  |  | 147,612 |  |  | 147,612 |
Equity method and other investments income (loss) | 6,577 |  |  | 52,253 |  |  | 58,830 |  |  | (1,744) |  |  | (11,854) |  |  | (13,598) |  |  | 2,541 |  |  | (17,661) |  |  | (15,120) |
Disposition gains | — |  |  | — |  |  | — |  |  | — |  |  | 16,923 |  |  | 16,923 |  |  | — |  |  | 225,828 |  |  | 225,828 |
Other | 6,805 |  |  | 406 |  |  | 7,211 |  |  | 42,693 |  |  | 40 |  |  | 42,733 |  |  | 32,930 |  |  | 1,040 |  |  | 33,970 |
Total | $ | 5,113,078 |  |  | $ | 347,558 |  |  | $ | 5,460,636 |  |  | $ | 4,979,768 |  |  | $ | 269,797 |  |  | $ | 5,249,565 |  |  | $ | 4,756,618 |  |  | $ | 479,903 |  |  | $ | 5,236,521 |

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- Definition Tabular disclosure of disaggregation of revenue into categories depicting how nature, amount, timing, and uncertainty of revenue and cash flows are affected by economic factor. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 606 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 5 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479806/606-10-50-5 + Details
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