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Divestitures (Details) - USD ($) $ in Thousands |  | 3 Months Ended | 9 Months Ended |
--- | --- | --- | --- | ---
Oct. 09, 2023 | Sep. 30, 2024 | Jun. 30, 2024 | Sep. 30, 2023 | Sep. 30, 2024 | Sep. 30, 2023 | Sep. 29, 2023
Business Acquisition, Equity Interests Issued or Issuable [Line Items] |  |  |  |  |  |  |
Gains, losses, and impairments related to divestitures |  | $ 0 |  | $ (4,112) | $ 87 | $ (4,112) |
Member Hubs Holding, LLC |  |  |  |  |  |  |
Business Acquisition, Equity Interests Issued or Issuable [Line Items] |  |  |  |  |  |  |
Revaluation gain on previously held equity method investment |  |  |  | 2,900 |  |  |
Loss on termination of lease |  |  |  | $ (600) |  |  |
Member Hubs Holding, LLC | Hagerty Ventures LLC |  |  |  |  |  |  |
Business Acquisition, Equity Interests Issued or Issuable [Line Items] |  |  |  |  |  |  |
Ownership interest |  |  |  | 100.00% |  |  |
Member Hubs Holding, LLC |  |  |  |  |  |  |
Business Acquisition, Equity Interests Issued or Issuable [Line Items] |  |  |  |  |  |  |
Equity method investment, ownership percentage |  |  |  | 20.00% |  | 20.00% | 20.00%
Hagerty DriveShare, LLC |  |  |  |  |  |  |
Business Acquisition, Equity Interests Issued or Issuable [Line Items] |  |  |  |  |  |  |
Revaluation gain on previously held equity method investment |  |  | $ (100) |  |  |  |
Gains, losses, and impairments related to divestitures | $ 400 |  |  |  |  |  |

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