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Convertible Preferred Stock - Narrative (Details) $ / shares in Units, $ in Millions | 1 Months Ended | 12 Months Ended |  |
--- | --- | --- | --- | ---
Jun. 30, 2025 USD ($) | Jun. 30, 2024 USD ($) | Jun. 30, 2023 USD ($) $ / shares shares | Dec. 31, 2025 USD ($) consecutiveTradingDay $ / shares shares | Dec. 31, 2024 $ / shares | Dec. 31, 2023
Class of Stock [Line Items] |  |  |  |  |  |
Temporary equity, par value (in dollars per share) | $ / shares |  |  |  | $ 0.0001 | $ 0.0001 |
Hagerty, Inc. |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |
Percentage of total outstanding |  |  |  |  |  | 5.00%
Series A Convertible Preferred Stock |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |
Number of shares issued in transaction (in shares) | shares |  |  | 8,483,561 |  |  |
Temporary equity, par value (in dollars per share) | $ / shares |  |  | $ 0.0001 |  |  |
Sale of stock, consideration received per transaction |  |  | $ 80.0 |  |  |
Sale of stock, price per share ( in dollar per share) | $ / shares |  |  | $ 9.43 |  |  |
Payments of debt issuance costs |  |  | $ 0.8 |  |  |
Consideration received on transaction |  |  | $ 79.2 |  |  |
Preferred stock, redemption amount |  |  |  | $ 109.2 |  |
Preferred stock, dividend rate, percentage |  |  |  | 7.00% |  |
Dividends, preferred stock, cash | $ 5.6 | $ 5.6 |  |  |  |
Convertible preferred stock Per-share purchase price (in dollars per shares) | $ / shares |  |  |  | $ 11.79 |  |
Conversion of stock, shares converted (in shares) | shares |  |  |  | 0 |  |
Class A Common Stock |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |
Debt instrument, convertible, threshold trading days | consecutiveTradingDay |  |  |  | 20 |  |
Debt instrument, convertible, threshold consecutive trading days | consecutiveTradingDay |  |  |  | 30 |  |
Preferred stock, convertible, shares issuable (in shares) | shares |  |  |  | 6,785,410 |  |
Class A Common Stock | On or after the Third and Prior to the Seventh Anniversary |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |
Convertible preferred stock, threshold percentage of stock price trigger |  |  |  | 150.00% |  |
Class A Common Stock | On or after the Seventh and Prior to the Tenth Anniversary |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |
Convertible preferred stock, threshold percentage of stock price trigger |  |  |  | 100.00% |  |

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