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Segment Information - Additional Information (Details) | 12 Months Ended
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Dec. 31, 2024 USD ($) Segment | Dec. 31, 2023 USD ($) | Dec. 31, 2022 USD ($)
Segment Reporting [Abstract] |  |  |
Number of operating segments | Segment | 3 |  |
Gain on Franchise Disposal |  | $ (20,900,000) |
EchoPark Depreciation and Amortization | $ (21,800,000) | (26,600,000) | $ (24,700,000)
EchoPark Interest Expense, Other, Net | (2,700,000) | (3,200,000) | (3,900,000)
EchoPark Other income (expense), net | 0 | (100,000) | 100,000
EchoPark Floorplan Exp | (14,200,000) | (17,400,000) | (10,700,000)
EchoPark Segment Income | 3,500,000 | (132,500,000) | $ (133,900,000)
Storm-related physical damage and legal costs | 8,300,000 | 1,900,000 |
Gain Loss On Exit Of Leased Dealerships |  | $ 4,300,000 |
Insurance Settlement |  |  |
Segment Reporting [Abstract] |  |  |
Other Nonrecurring Gain | $ 10,000,000.0 |  |

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- Definition EchoPark Depreciation and Amortization + References No definition available. + Details
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- Definition EchoPark Floorplan Exp + References No definition available. + Details
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- Definition EchoPark Interest Expense, Other, Net + References No definition available. + Details
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- Definition EchoPark Segment Income + References No definition available. + Details
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- Definition Gain (loss) on exit of leased dealerships. + References No definition available. + Details
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- Definition Gain on Franchise Disposal + References No definition available. + Details
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- Definition Storm Damage and Legal Expenses + References No definition available. + Details
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- Definition Number of operating segments. An operating segment is a component of an enterprise: (a) that engages in business activities from which it may earn revenues and incur expenses (including revenues and expenses relating to transactions with other components of the same enterprise), (b) whose operating results are regularly reviewed by the enterprise's chief operating decision maker to make decisions about resources to be allocated to the segment and assess its performance, and (c) for which discrete financial information is available. An operating segment may engage in business activities for which it has yet to earn revenues, for example, start-up operations may be operating segments before earning revenues. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Topic 280 -SubTopic 10 -Name Accounting Standards Codification -Section 55 -Paragraph 49 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482785/280-10-55-49 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 280 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 18 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482810/280-10-50-18 + Details
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- Definition Amount of gain that is infrequent in occurrence or unusual in nature. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 220 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Publisher FASB -URI https://asc.fasb.org/1943274/2147483613/220-20-50-1 + Details
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- Details
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