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Segment Information | 9 Months Ended
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Sep. 30, 2025
Segment Reporting [Abstract] |
Segment Information | 9. Segment Information As of September 30, 2025, Sonic had three operating segments: (1) the Franchised Dealerships Segment; (2) the EchoPark Segment; and (3) the Powersports Segment. Refer to Note 1, “Description of Business and Summary of Significant Accounting Policies,” to the consolidated financial statements in Sonic’s Annual Report on Form 10-K for the year ended December 31, 2024 for additional discussion of our operating segments. Sonic has determined that its operating segments also represent its reportable segments. The reportable segments identified above are the business activities of Sonic for which discrete financial information is available and for which operating results are regularly reviewed by Sonic’s chief operating decision maker to assess operating performance and allocate resources. Sonic’s chief operating decision maker is a group of three individuals consisting of: (1) the Company’s Chief Executive Officer; (2) the Company’s President; and (3) the Company’s Chief Financial Officer. The chief operating decision makers evaluate segment performance and allocate resources using metrics such as segment gross profit and segment income. These segment profit metrics are consistent across all segments and align with the way we measure profit on a consolidated basis. The accounting policies applied to segments follow those for the Company as a whole.

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- Definition The entire disclosure for reporting segments including data and tables. Reportable segments include those that meet any of the following quantitative thresholds a) it's reported revenue, including sales to external customers and intersegment sales or transfers is 10 percent or more of the combined revenue, internal and external, of all operating segments b) the absolute amount of its reported profit or loss is 10 percent or more of the greater, in absolute amount of 1) the combined reported profit of all operating segments that did not report a loss or 2) the combined reported loss of all operating segments that did report a loss c) its assets are 10 percent or more of the combined assets of all operating segments. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 280 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 21 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482810/280-10-50-21 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 280 -SubTopic 10 -Name 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