BASIS OF PRESENTATION AND CONSOLIDATION AND ACCOUNTING POLICIES	9 Months Ended
	Sep. 30, 2025
Organization, Consolidation and Presentation of Financial Statements [Abstract]
BASIS OF PRESENTATION AND CONSOLIDATION AND ACCOUNTING POLICIES	BASIS OF PRESENTATION AND CONSOLIDATION AND ACCOUNTING POLICIES Basis of Presentation and Consolidation The accompanying Condensed Consolidated Financial Statements and notes thereto, have been prepared in accordance with U.S. GAAP for interim financial information and in accordance with the rules and regulations of the Securities and Exchange Commission. Accordingly, they do not include all of the information and notes required by U.S. GAAP for complete financial statements. Results for interim periods are not necessarily indicative of the results that can be expected for a full year and therefore should be read in conjunction with the Company’s audited Financial Statements and notes thereto included within the Company’s 2024 Form 10-K. All intercompany balances and transactions have been eliminated in consolidation. The accompanying Condensed Consolidated Financial Statements reflect the consolidated accounts of the parent company, Group 1 Automotive, Inc. and its subsidiaries, all of which are wholly owned. Discontinued operations presented in the accompanying Condensed Consolidated Financial Statements relate to the Company’s Brazilian operations which were disposed of in 2022. Unless otherwise specified, disclosures in these Condensed Consolidated Financial Statements reflect continuing operations only. Certain amounts in the Condensed Consolidated Financial Statements and the accompanying notes may not compute due to rounding. All computations have been calculated using unrounded amounts for all periods presented. These Condensed Consolidated Financial Statements reflect, in the opinion of management, all normal recurring adjustments necessary to fairly state, in all material respects, the Company’s financial position and results of operations for the periods presented. Use of Estimates The preparation of the Company’s financial statements in conformity with U.S. GAAP requires management to make certain estimates and assumptions. These estimates and assumptions affect the reported amounts of assets and liabilities, the disclosures of contingent assets and liabilities at the balance sheet date and the amounts of revenues and expenses recognized during the reporting period. Management analyzes the Company’s estimates based on historical experience and other assumptions that are believed to be reasonable under the circumstances, however, actual results could differ materially from such estimates. The significant estimates made by management in the accompanying Condensed Consolidated Financial Statements include, but are not limited to, inventory valuation adjustments, reserves for future chargebacks on finance, insurance and vehicle service contract fees, self-insured property and casualty insurance exposure, the fair value of assets acquired and liabilities assumed in business combinations, the valuation of goodwill and intangible franchise rights and reserves for potential litigation. Recent Accounting Pronouncements In December 2023, the FASB issued ASU 2023-09, Income Taxes (Topic 740): Improvements to Income Tax Disclosures. The amendments require the disclosure of a reconciliation between income tax expense from continuing operations and the amount computed by multiplying income from continuing operations before income taxes by the applicable statutory rate as well as an annual disaggregation of the income tax rate reconciliation between certain specified categories by both percentage and reported amounts, along with other changes to income tax disclosure requirements. The standard will be effective for annual periods beginning after December 15, 2024. The Company does not expect the adoption of this ASU to have a material impact on its consolidated financial statements; however, the adoption will require certain additional income tax disclosures. In November 2024, the FASB issued ASU 2024-03, Income Statement — Reporting Comprehensive Income — Expense Disaggregation Disclosures. The ASU requires that an entity disclose additional information about specific expense categories in the notes to financial statements. The standard will be effective for annual periods beginning after December 15, 2026, and interim periods within fiscal years beginning after December 15, 2027. The Company is currently evaluating the impact that the adoption of the provisions of the ASU will have on its consolidated financial statements. In July 2025, the FASB issued ASU 2025-05, Financial Instruments — Credit Losses (Topic 326): Measurement of Credit Losses for Accounts Receivable and Contract Assets. The amendments introduce a practical expedient that allows entities to measure expected credit losses on current accounts receivable and current contract assets by assuming that current conditions as of the reporting date will remain unchanged over the life of those assets. This update is intended to simplify the estimation process by reducing reliance on forecasts of future economic conditions. The standard will be effective for annual periods beginning after December 15, 2025, including interim periods within those fiscal years, with early adoption permitted. The Company is currently evaluating the impact the adoption of the ASU will have on its consolidated financial statements. In September 2025, the FASB issued ASU 2025-06, Intangibles — Goodwill and Other — Internal-Use Software (Subtopic 350-40): Targeted Improvements to the Accounting for Internal-Use Software. The amendments eliminate the previous stage of development framework and require capitalization of internal-use software costs to begin when management authorizes and commits funding for a project and it is probable the project will be completed and placed in service. The standard will be effective for fiscal years beginning after December 15, 2027, including interim periods within those fiscal years, with early adoption permitted. The Company is currently evaluating the impact the adoption of the ASU will have on its consolidated financial statements.