BASIS OF PRESENTATION AND CONSOLIDATION AND ACCOUNTING POLICIES	9 Months Ended
	Sep. 30, 2024
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 SEC. 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 2023 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. On July 1, 2022, the Company completed the disposal of 100% of the issued and outstanding equity interests of the Company’s Brazilian operations (the “Brazil Disposal Group”). The Brazil Disposal Group met the criteria to be reported as held for sale and discontinued operations. Therefore, the related assets, liabilities and operating results of the Brazil Disposal Group are reported as discontinued operations for all periods presented. Results of operations, cash flows, assets and liabilities associated with the Brazil Disposal Group are immaterial for all periods presented. 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. Significant estimates were made by management in the accompanying Condensed Consolidated Financial Statements, related to, but 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 November 2023, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update (“ASU”) 2023-07, Segment Reporting (Topic 820): Improvements to Reportable Segment Disclosures. The amendments require the disclosure of significant segment expenses as well as expanded interim disclosures, along with other changes to segment disclosure requirements. The standard is effective for fiscal years beginning after December 15, 2023, and interim periods beginning after December 15, 2024, and is required to be applied retrospectively. Beginning with the annual Financial Statements and notes thereto included within the Company’s Annual Report on Form 10-K for the year ended December 31, 2024, the Company will incorporate the required disclosures, which include information concerning the Company’s reported measure of segment profit or loss, as well as significant segment expenses and other segment items that are regularly provided to the Chief Operating Decision Maker (“CODM”) and included in the measure, among other required disclosure changes. Additionally, the Company expects that interim periods beginning after December 15, 2024 will include segment disclosures largely consistent with the annual disclosure requirements. 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 fiscal years beginning after December 15, 2024. Early adoption is permitted and can be applied retrospectively. The Company is currently evaluating the impact that the adoption of the provisions of the ASU will have on its consolidated financial statements.