DESCRIPTION OF BUSINESS AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Policies)	9 Months Ended
Sep. 30, 2025
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Basis of Presentation	Basis of Presentation The accompanying condensed consolidated financial statements have been prepared in accordance with accounting principles generally accepted in the United States of America ("GAAP"), and reflect the consolidated accounts of the Company and our wholly owned subsidiaries. All intercompany transactions have been eliminated in consolidation. If necessary, reclassifications of amounts previously reported have been made to the accompanying condensed consolidated financial statements in order to conform to current presentation. In the opinion of management, all adjustments, consisting only of normal, recurring adjustments, considered necessary for a fair statement of the condensed consolidated financial statements as of September 30, 2025, and for the three and nine months ended September 30, 2025 and 2024, have been included, unless otherwise indicated. Amounts presented in the condensed consolidated financial statements have been calculated using non-rounded amounts for all periods presented and therefore certain amounts may not compute. The results of operations for the three and nine months ended September 30, 2025 are not necessarily indicative of the results that may be expected for any other interim period, or any full year period. Our condensed consolidated financial statements should be read together with our audited consolidated financial statements contained in our Annual Report on Form 10-K for the year ended December 31, 2024.
Use of Estimates	Use of Estimates The preparation of financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities, disclosures of contingent assets and liabilities as of the date of the financial statements, and the reported amounts of revenues and expenses during the periods presented. Actual results could differ materially from these estimates. Estimates and assumptions are reviewed quarterly and the effects of any revisions are reflected in the consolidated financial statements in the period they are determined to be necessary. Estimates made in the accompanying condensed consolidated financial statements include, but are not limited to, those relating to inventory valuation reserves, reserves for chargebacks against revenue recognized from the sale of F&I products, reserves for self-insurance programs, and certain assumptions related to goodwill and dealership franchise rights intangible assets.
Share Repurchases	Share Repurchases Share repurchases may be made from time-to-time in open market transactions or through privately negotiated transactions under the authorization approved by the Board of Directors. Periodically, the Company may retire repurchased shares of common stock previously held by the Company as treasury stock. In accordance with our accounting policy, we allocate any excess share repurchase price over par value between additional paid-in capital, which is limited to amounts initially recorded for the same issue, and retained earnings. During the three and nine months ended September 30, 2025, the Company repurchased and retired 220,587 shares of our common stock under our share repurchase program. The cash paid for these share repurchases was $50.0 million for the three and nine months ended September 30, 2025. During the three and nine months ended September 30, 2024, the Company repurchased and retired 393,951 and 826,340 shares of our common stock under our share repurchase program, respectively. The cash paid for these share repurchases was $182.1 million for the nine months ended September 30, 2024. On May 15, 2024, the Company announced that its Board of Directors approved an increase of $256.2 million in the Company's common share repurchase authorization to $400.0 million (the "New Share Repurchase Authorization"). As of September 30, 2025, the Company had $225.9 million remaining on its share repurchase authorization. The share repurchase authorization does not require the Company to repurchase any specific number of shares, and may be modified, suspended, or terminated at any time without further notice.
Earnings per Share	Earnings per Share Basic earnings per share is computed by dividing net income by the weighted-average common shares outstanding during the period. Diluted earnings per share is computed by dividing net income by the weighted-average common shares and common share equivalents outstanding during the period. The Company excluded 548 and 201 restricted share units and no performance share units issued under the Asbury Automotive Group, Inc. 2019 Equity and Incentive Compensation Plan from its computation of diluted earnings per share for the three months ended September 30, 2025 and 2024, respectively, because they were anti-dilutive. During the nine months ended September 30, 2025 and 2024, the Company excluded 6,323 and 1,784 restricted share units and 25 and 1,177 performance share units issued under the Asbury Automotive Group, Inc. 2019 Equity and Incentive Compensation Plan from its computation of diluted earnings per share, respectively, because they were anti-dilutive. For all periods presented, there were no adjustments to the numerator necessary to compute diluted earnings per share.
Recent Accounting Pronouncements	Recent Accounting Pronouncements The Financial Accounting Standards Board ("FASB") issued Accounting Standards Update ("ASU") 2025-06, Intangibles – Goodwill and Other – Internal-Use Software, in September 2025, which is intended to modernize the internal-use software guidance to adapt to the agile (i.e. iterative and flexible) basis predominantly employed to develop software today. The new standard amends the recognition threshold for capitalizing internal-use software costs and clarifies the presentation and disclosure requirements associated with internal-use software. The guidance is effective for interim and annual periods beginning after December 15, 2027 and may be applied prospectively, retrospectively or on a modified prospective basis. We are evaluating the impact of this new guidance on our consolidated financial statements. In July 2025, the FASB issued ASU 2025-05, Measurement of Credit Losses for Accounts Receivable and Contract Assets. The standard provides a practical expedient related to the estimation of expected credit losses for current accounts receivable and current contract assets. The practical expedient assumes that conditions as of the balance sheet date do not change for the remaining life of the accounts receivable and contract assets when forecasting estimated credit losses. An entity is required to disclose whether it has applied the practical expedient. The guidance is effective for interim and annual periods beginning after December 15, 2025 and should be applied prospectively. Early adoption is permitted. We are evaluating the impact of this new guidance on our consolidated financial statements. The FASB issued ASU 2024-03, Disaggregation – Income Statement Expenses, in November 2024, which requires additional disclosure of the nature of expenses included in the income statement. The new standard requires disclosures about specific types of expenses included in the expense captions presented on the face of the income statement as well as disclosures about selling expenses. The guidance is effective for annual periods beginning after December 15, 2026 and should be applied prospectively with the option of retrospective application. We are evaluating the impact of this new guidance on our consolidated financial statements. In December 2023, the FASB issued final guidance in ASU 2023-09, Improvements to Income Tax Disclosures, which primarily expands the disclosures related to the effective tax rate reconciliation and income taxes paid. The guidance is effective for annual periods beginning after December 15, 2024 and should be applied prospectively with the option of retrospective application. We do not expect the adoption of this accounting standard to have a significant impact on our consolidated financial statements, but it will require certain additional disclosures.

DESCRIPTION OF BUSINESS AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Policies)

9 Months Ended

Sep. 30, 2025

Organization, Consolidation and Presentation of Financial Statements [Abstract]

The accompanying condensed consolidated financial statements have been prepared in accordance with accounting principles generally accepted in the United States of America ("GAAP"), and reflect the consolidated accounts of the Company and our wholly owned subsidiaries. All intercompany transactions have been eliminated in consolidation. If necessary, reclassifications of amounts previously reported have been made to the accompanying condensed consolidated financial statements in order to conform to current presentation.

In the opinion of management, all adjustments, consisting only of normal, recurring adjustments, considered necessary for a fair statement of the condensed consolidated financial statements as of September 30, 2025, and for the three and nine months ended September 30, 2025 and 2024, have been included, unless otherwise indicated. Amounts presented in the condensed consolidated financial statements have been calculated using non-rounded amounts for all periods presented and therefore certain amounts may not compute.

The results of operations for the three and nine months ended September 30, 2025 are not necessarily indicative of the results that may be expected for any other interim period, or any full year period. Our condensed consolidated financial statements should be read together with our audited consolidated financial statements contained in our Annual Report on Form 10-K for the year ended December 31, 2024.

Use of Estimates

The preparation of financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities, disclosures of contingent assets and liabilities as of the date of the financial statements, and the reported amounts of revenues and expenses during the periods presented. Actual results could differ materially from these estimates. Estimates and assumptions are reviewed quarterly and the effects of any revisions are reflected in the consolidated financial statements in the period they are determined to be necessary. Estimates made in the accompanying condensed consolidated financial statements include, but are not limited to, those relating to inventory valuation reserves, reserves for chargebacks against revenue recognized from the sale of F&I products, reserves for self-insurance programs, and certain assumptions related to goodwill and dealership franchise rights intangible assets.

Share Repurchases

Share repurchases may be made from time-to-time in open market transactions or through privately negotiated transactions under the authorization approved by the Board of Directors. Periodically, the Company may retire repurchased shares of common stock previously held by the Company as treasury stock. In accordance with our accounting policy, we allocate any excess share repurchase price over par value between additional paid-in capital, which is limited to amounts initially recorded for the same issue, and retained earnings.

During the three and nine months ended September 30, 2025, the Company repurchased and retired 220,587 shares of our common stock under our share repurchase program. The cash paid for these share repurchases was $50.0 million for the three and nine months ended September 30, 2025.

During the three and nine months ended September 30, 2024, the Company repurchased and retired 393,951 and 826,340 shares of our common stock under our share repurchase program, respectively. The cash paid for these share repurchases was $182.1 million for the nine months ended September 30, 2024.

On May 15, 2024, the Company announced that its Board of Directors approved an increase of $256.2 million in the Company's common share repurchase authorization to $400.0 million (the "New Share Repurchase Authorization"). As of September 30, 2025, the Company had $225.9 million remaining on its share repurchase authorization. The share repurchase authorization does not require the Company to repurchase any specific number of shares, and may be modified, suspended, or terminated at any time without further notice.

Earnings per Share

Basic earnings per share is computed by dividing net income by the weighted-average common shares outstanding during the period. Diluted earnings per share is computed by dividing net income by the weighted-average common shares and common share equivalents outstanding during the period. The Company excluded 548 and 201 restricted share units and no performance share units issued under the Asbury Automotive Group, Inc. 2019 Equity and Incentive Compensation Plan from its computation of diluted earnings per share for the three months ended September 30, 2025 and 2024, respectively, because they were anti-dilutive. During the nine months ended September 30, 2025 and 2024, the Company excluded 6,323 and 1,784 restricted share units and 25 and 1,177 performance share units issued under the Asbury Automotive Group, Inc. 2019 Equity and Incentive Compensation Plan from its computation of diluted earnings per share, respectively, because they were anti-dilutive. For all periods presented, there were no adjustments to the numerator necessary to compute diluted earnings per share.

Recent Accounting Pronouncements

The Financial Accounting Standards Board ("FASB") issued Accounting Standards Update ("ASU") 2025-06, Intangibles – Goodwill and Other – Internal-Use Software, in September 2025, which is intended to modernize the internal-use software guidance to adapt to the agile (i.e. iterative and flexible) basis predominantly employed to develop software today. The new standard amends the recognition threshold for capitalizing internal-use software costs and clarifies the presentation and disclosure requirements associated with internal-use software. The guidance is effective for interim and annual periods beginning after December 15, 2027 and may be applied prospectively, retrospectively or on a modified prospective basis. We are evaluating the impact of this new guidance on our consolidated financial statements.

In July 2025, the FASB issued ASU 2025-05, Measurement of Credit Losses for Accounts Receivable and Contract Assets. The standard provides a practical expedient related to the estimation of expected credit losses for current accounts receivable and current contract assets. The practical expedient assumes that conditions as of the balance sheet date do not change for the remaining life of the accounts receivable and contract assets when forecasting estimated credit losses. An entity is required to disclose whether it has applied the practical expedient. The guidance is effective for interim and annual periods beginning after December 15, 2025 and should be applied prospectively. Early adoption is permitted. We are evaluating the impact of this new guidance on our consolidated financial statements.

The FASB issued ASU 2024-03, Disaggregation – Income Statement Expenses, in November 2024, which requires additional disclosure of the nature of expenses included in the income statement. The new standard requires disclosures about specific types of expenses included in the expense captions presented on the face of the income statement as well as disclosures about selling expenses. The guidance is effective for annual periods beginning after December 15, 2026 and should be applied prospectively with the option of retrospective application. We are evaluating the impact of this new guidance on our consolidated financial statements.

In December 2023, the FASB issued final guidance in ASU 2023-09, Improvements to Income Tax Disclosures, which primarily expands the disclosures related to the effective tax rate reconciliation and income taxes paid. The guidance is effective for annual periods beginning after December 15, 2024 and should be applied prospectively with the option of retrospective application. We do not expect the adoption of this accounting standard to have a significant impact on our consolidated financial statements, but it will require certain additional disclosures.