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Description of Business and Summary of Significant Accounting Policies (Goodwill and Other Intangible Assets) (Details) - USD ($) | 3 Months Ended | 4 Months Ended | 12 Months Ended
--- | --- | --- | ---
Dec. 31, 2024 | Apr. 30, 2024 | Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022
Goodwill and Intangible Assets [Line Items] |  |  |  |  |
Franchise agreements, minimal contractual terms (in years) |  |  | 1 year |  |
Franchise rights impairment |  |  | $ 12,500,000 | $ 0 | $ 0
Franchise Rights |  |  |  |  |
Goodwill and Intangible Assets [Line Items] |  |  |  |  |
Franchise rights impairment |  | $ 0 |  | $ 0 |
Minimum [Member] |  |  |  |  |
Goodwill and Intangible Assets [Line Items] |  |  |  |  |
Other intangibles, useful life | 3 years |  | 3 years |  |
Maximum [Member] |  |  |  |  |
Goodwill and Intangible Assets [Line Items] |  |  |  |  |
Other intangibles, useful life | 30 years |  | 30 years |  |
Nonrecurring [Member] | Franchise Rights |  |  |  |  |
Goodwill and Intangible Assets [Line Items] |  |  |  |  |
Franchise rights impairment | $ 12,500,000 |  | $ 12,500,000 |  |

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- Definition The minimum contractual term of the Company's various franchise agreements with vehicle manufacturers. + References No definition available. + Details
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- Definition Amount of impairment loss resulting from write-down of assets, excluding financial assets and goodwill, lacking physical substance and having a projected indefinite period of benefit to fair value. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 350 -SubTopic 30 -Name Accounting Standards Codification -Section 45 -Paragraph 2 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482686/350-30-45-2 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 350 -SubTopic 30 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482665/350-30-50-2 Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 350 -SubTopic 30 -Name Accounting Standards Codification -Section 50 -Paragraph 3 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482665/350-30-50-3 Reference 4: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 230 -SubTopic 10 -Name Accounting Standards Codification -Section 45 -Paragraph 28 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482740/230-10-45-28 + Details
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