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Basis of Presentation and Nature of Operations (Details) $ / shares in Units, $ in Millions, $ in Millions | Sep. 30, 2024 USD ($) location network $ / shares shares | Jan. 19, 2024 CAD ($) | Dec. 31, 2023 USD ($) shares | Jun. 23, 2023 USD ($) | May 31, 2017
--- | --- | --- | --- | --- | ---
Basis of Presentation and Nature of Operations [Abstract] |  |  |  |  |
Long-term debt | $ 276.7 |  | $ 364.6 |  |
Marketplace |  |  |  |  |
Basis of Presentation and Nature of Operations [Abstract] |  |  |  |  |
Number of vehicle logistics center locations (Canada) | network | 15 |  |  |  |
AFC |  |  |  |  |
Basis of Presentation and Nature of Operations [Abstract] |  |  |  |  |
Number of floorplan financing locations | location | 90 |  |  |  |
Series A Preferred Stock [Member] |  |  |  |  |
Basis of Presentation and Nature of Operations [Abstract] |  |  |  |  |
Series A Preferred Stock par value per share | $ / shares | $ 0.01 |  |  |  |
Series A Preferred Stock shares outstanding | shares | 634,305 |  | 634,305 |  |
Senior Notes [Member] |  |  |  |  |
Basis of Presentation and Nature of Operations [Abstract] |  |  |  |  |
Long-term debt | $ 210.0 |  | $ 210.0 |  |
Senior notes stated interest rate | 5.125% |  |  |  | 5.125%
Credit Agreement | Revolving Credit Facility |  |  |  |  |
Basis of Presentation and Nature of Operations [Abstract] |  |  |  |  |
Long-term debt | $ 56.0 |  | 137.0 |  |
Maximum borrowing capacity | 325.0 |  |  | $ 325.0 |
Credit Agreement | Canadian Revolving Credit Facility |  |  |  |  |
Basis of Presentation and Nature of Operations [Abstract] |  |  |  |  |
Long-term debt | $ 0.0 |  | $ 0.0 |  |
Maximum borrowing capacity |  | $ 175 |  |  |

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