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Goodwill and Intangible Assets - Additional Information (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended |  |
--- | --- | --- | --- | ---
Sep. 30, 2023 | Mar. 31, 2023 | Sep. 30, 2022 | Sep. 30, 2023 | Sep. 30, 2022 | Dec. 31, 2022 | Dec. 31, 2021
Goodwill and Intangible Assets Disclosure [Abstract] |  |  |  |  |  |  |
Net of accumulated impairment losses |  |  |  |  |  |  | $ 1,100,000
Goodwill - Franchise Segment | $ 219,600 |  |  | $ 219,600 |  | $ 221,800 | 251,200
Goodwill - Preowned Segment | 0 |  |  | 0 |  | 0 | 165,200
Goodwill - Powersports Segment | 24,000 |  |  | 24,000 |  | 9,200 | 0
GW Accm Amort Fdealer |  |  |  |  |  | 1,100,000 |
GW Amm Amort Preowned |  |  |  |  |  | 202,900 |
Finite-Lived Intangible Assets [Line Items] |  |  |  |  |  |  |
Impairment charges | 0 |  | $ 0 | 62,600 | $ 0 |  |
Indefinite-Lived Franchise Rights | 417,400 |  |  | 417,400 |  | 396,700 |
Goodwill [Line Items] |  |  |  |  |  |  |
Goodwill - Preowned Segment | 0 |  |  | 0 |  | 0 | 165,200
Net of accumulated impairment losses |  |  |  |  |  |  | 1,100,000
Goodwill and Intangible Asset Impairment |  | $ (202,900) |  | (1,800) |  |  |
Goodwill | 243,600 |  |  | 243,600 |  | 231,000 | 416,400
Goodwill and Intangible Assets Acquired |  | 14,300 |  | 11,900 |  |  |
Goodwill - Franchise Segment | 219,600 |  |  | 219,600 |  | 221,800 | 251,200
Goodwill - Powersports Segment | $ 24,000 |  |  | 24,000 |  | $ 9,200 | $ 0
PY Acq GW Allocations |  | 3,200 |  | 2,500 |  |  |
PY Acq GW Allocations Fdealer |  | (34,500) |  | (400) |  |  |
PY Acq GW Allocations Preowned |  | 37,700 |  | 0 |  |  |
PY Acq GW Allocations Powersports |  |  |  | 2,900 | $ 0 |  |
Goodwill and Intangible Assets Acquired Fdealer |  | 5,100 |  | 0 |  |  |
Goodwill and Intangible Assets Acquired Preowned |  | 0 |  | 0 |  |  |
Goodwill and Intangible Assets Acquired Powersports |  | 9,200 |  | 11,900 |  |  |
GW Asset Impairment Fdealer |  | 0 |  | (1,800) |  |  |
GW Asset Impairment Preowned |  | (202,900) |  | 0 |  |  |
GW Asset Impairment Powersports |  | $ 0 |  | $ 0 |  |  |

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