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Related-Party Transactions - Equity Interests in Hagerty (Details) - Hagerty, Inc. - Affiliated Entity | Sep. 30, 2024 shares
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Markel | Total Stockholders' Equity |
Class of Stock [Line Items] |
Equity interests in Hagerty (in shares) | 3,108,000
Percentage of total outstanding | 3.50%
Markel | Non-controlling Interest |
Class of Stock [Line Items] |
Equity interests in Hagerty (in shares) | 75,000,000
Percentage of total outstanding | 29.40%
Markel | THG units |
Class of Stock [Line Items] |
Equity interests in Hagerty (in shares) | 75,000,000
Percentage of total outstanding | 21.70%
State Farm | Total Stockholders' Equity |
Class of Stock [Line Items] |
Equity interests in Hagerty (in shares) | 51,800,000
Percentage of total outstanding | 57.60%
State Farm | Non-controlling Interest |
Class of Stock [Line Items] |
Equity interests in Hagerty (in shares) | 0
Percentage of total outstanding | 0.00%
State Farm | THG units |
Class of Stock [Line Items] |
Equity interests in Hagerty (in shares) | 0
Percentage of total outstanding | 0.00%
Class A Common Stock | Markel |
Class of Stock [Line Items] |
Equity interests in Hagerty (in shares) | 3,108,000
Percentage of total outstanding | 3.50%
Class A Common Stock | State Farm |
Class of Stock [Line Items] |
Equity interests in Hagerty (in shares) | 51,800,000
Percentage of total outstanding | 57.60%
Class V Common Stock | Markel |
Class of Stock [Line Items] |
Equity interests in Hagerty (in shares) | 75,000,000
Percentage of total outstanding | 29.90%
Class V Common Stock | State Farm |
Class of Stock [Line Items] |
Equity interests in Hagerty (in shares) | 0
Percentage of total outstanding | 0.00%
Series A Convertible Preferred Stock | Markel |
Class of Stock [Line Items] |
Equity interests in Hagerty (in shares) | 1,590,668
Percentage of total outstanding | 18.80%
Series A Convertible Preferred Stock | State Farm |
Class of Stock [Line Items] |
Equity interests in Hagerty (in shares) | 5,302,226
Percentage of total outstanding | 62.50%

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