BASIS OF PRESENTATION AND CONSOLIDATION AND ACCOUNTING POLICIES	6 Months Ended
	Jun. 30, 2023
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 2022 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 (the “Brazil Discontinued Operations”) for all periods presented. Refer to Note 4. Discontinued Operations and Other Divestitures for additional information. 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 including, but not limited to, inventory valuation adjustments, reserves for future chargebacks on finance, insurance and VSC 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.