Long-Term Debt	6 Months Ended
Jun. 30, 2026
Debt Disclosure [Abstract]
2016 Credit Facilities [Text Block]	Credit Facilities Our Credit Agreement, originally dated as of April 14, 2021, entered into by, among others, the Company and Bank of America, N.A., as administrative agent (as amended to date, the “Credit Agreement”), provides for a syndicated revolving credit facility (the “Revolving Credit Facility”) and syndicated new and used vehicle floor plan facilities (the “Floor Plan Facilities” and, together with the Revolving Credit Facility, the “Credit Facilities”). The Credit Facilities are guaranteed by the Company and certain of its subsidiaries and are secured by a pledge of substantially all of the guarantors’ assets subject to certain exceptions, including floor plan agreements with various manufacturer-affiliated captive finance companies. On March 13, 2024, we amended and restated our Credit Agreement (the “Sixth Credit Facility Amendment”) to extend the maturity date to March 13, 2029, with an optional one-year extension. The Sixth Credit Facility Amendment currently includes aggregate commitments of $2.4 billion as well as an accordion feature allowing for an increase in future commitments of up to $450.0 million allocated between the three facilities on a pro rata basis. Under the Sixth Credit Facility Amendment, the Revolving Credit Facility commitment can neither be reduced below $50.0 million nor consist of more than 40% of the aggregate commitments under the Credit Facilities. In addition, the Sixth Credit Facility Amendment increased the basket for unrestricted quarterly dividends from $0.12 to $0.18 per share of qualified capital stock, provided additional flexibility for the Company to make asset sales and repurchases of its qualified capital stock, removed the consolidated liquidity ratio covenant, and clarified that “Adjusted Term SOFR” (as defined in the Credit Agreement) is inclusive of a 10 basis point credit spread adjustment. Amounts outstanding under the Credit Facilities bear interest at Adjusted Term SOFR plus credit spreads indicated by our Consolidated Total Lease Adjusted Leverage Ratio (as defined in the Credit Agreement). As of June 30, 2026, the aggregate commitments consisted of $1.5 billion for the new vehicle floor plan, $550.0 million for the used vehicle floor plan and $350.0 million for the Revolving Credit Facility. Availability under the Revolving Credit Facility is calculated as the lesser of the $350.0 million commitment or a borrowing base collateralized by eligible assets, less any outstanding letters of credit and borrowings. As of June 30, 2026, the Revolving Borrowing Base was $298.5 million and we had $11.6 million in outstanding letters of credit and no borrowings, resulting in $286.9 million of availability.
4.875 Notes Text [Text Block]
Covenants Text Block [Text Block]	Covenants The Credit Facilities, Mortgage Facility, Sidecar Facility, Bridge Facility and Senior Notes each contain covenants which could prohibit the issuance of additional indebtedness, the payment of dividends over certain limits, other restricted payments such as share repurchases, certain types of capital expenditures and asset purchases and material dispositions and acquisitions. They also contain other covenants and default provisions, including cross defaults to other material indebtedness, change of control events and other events of default customary for commercial credit facilities. Upon the occurrence of an event of default, we could be required to repay all outstanding amounts under these facilities. Financial covenants for the Credit Facilities, Mortgage Facility, Sidecar Facility and Bridge Facility include a minimum Consolidated Fixed Charge Coverage Ratio (as defined in each agreement) of 1.20 to 1.00 and a maximum Consolidated Total Lease Adjusted Leverage Ratio (as defined in each agreement) of 5.75 to 1.00. Similar financial covenants apply to our Senior Notes as well as to certain facility leases and their related guaranty agreements. We remain in compliance with all restrictive covenants as of June 30, 2026.
2019 Mortgage Facility Text Block [Text Block]	Mortgage Facility and Sidecar Facility On November 22, 2019, we entered into an agreement between, among others, the Company and PNC Bank, N.A., as administrative agent, providing for both revolving credit and delayed draw term loans (as amended to date, the “Mortgage Facility”). On March 22, 2024, we amended the Mortgage Facility to conform to the terms of the Sixth Credit Facility Amendment. On May 17, 2024, we incurred a $78.0 million term loan as required under the Mortgage Facility in order to achieve full term loan utilization. On December 27, 2024, we entered into an agreement, which established a syndicated mortgage loan facility (the “Sidecar Facility”) providing an incremental $149.1 million of term loan commitments. Though the Sidecar Facility is distinct and separate from the Mortgage Facility, the two facilities contain similar terms and conditions, are coterminous, and use one month Adjusted Term SOFR as a base rate with the same pricing grid. On October 24, 2025, we incurred an additional $149.1 million term loan as required under the Sidecar Facility in order to achieve full utilization. Interest on the Mortgage Facility and Sidecar Facility is paid monthly in arrears. Amortizing principal payments are 1.875% of the cumulative amount drawn on the term loan portion of Mortgage Facility and Sidecar Facility each quarter end through September 30, 2027, with the remaining balances due on the November 17, 2027 maturity date. We have the right to prepay outstanding principal on either facility at any time without premium or penalty provided that the prepayment amount exceeds $0.5 million. As of June 30, 2026, we had $284.0 million of outstanding term borrowings and $95.0 million available for revolving loans under the Mortgage Facility. In addition, we had $137.5 million of outstanding term borrowings under the Sidecar Facility.
Mortgage Notes Text Block [Text Block]	Notes to Finance Companies Our notes to finance companies (excluding the Mortgage Facility, Sidecar Facility, and Bridge Facility) had a weighted-average interest rate of 4.95% and a combined principal balance of $54.6 million as of June 30, 2026. These notes require monthly payments of principal and interest through their respective maturities, are secured by underlying properties or other collateral and contain certain cross-default provisions. These notes mature between 2028 and 2034.

Long-Term Debt

6 Months Ended

Jun. 30, 2026

2016 Credit Facilities [Text Block]

Credit Facilities

Our Credit Agreement, originally dated as of April 14, 2021, entered into by, among others, the Company and Bank of America, N.A., as administrative agent (as amended to date, the “Credit Agreement”), provides for a syndicated revolving credit facility (the “Revolving Credit Facility”) and syndicated new and used vehicle floor plan facilities (the “Floor Plan Facilities” and, together with the Revolving Credit Facility, the “Credit Facilities”). The Credit Facilities are guaranteed by the Company and certain of its subsidiaries and are secured by a pledge of substantially all of the guarantors’ assets subject to certain exceptions, including floor plan agreements with various manufacturer-affiliated captive finance companies.

On March 13, 2024, we amended and restated our Credit Agreement (the “Sixth Credit Facility Amendment”) to extend the maturity date to March 13, 2029, with an optional one-year extension. The Sixth Credit Facility Amendment currently includes aggregate commitments of $2.4 billion as well as an accordion feature allowing for an increase in future commitments of up to $450.0 million allocated between the three facilities on a pro rata basis. Under the Sixth Credit Facility Amendment, the Revolving Credit Facility commitment can neither be reduced below $50.0 million nor consist of more than 40% of the aggregate commitments under the Credit Facilities.

In addition, the Sixth Credit Facility Amendment increased the basket for unrestricted quarterly dividends from $0.12 to $0.18 per share of qualified capital stock, provided additional flexibility for the Company to make asset sales and repurchases of its qualified capital stock, removed the consolidated liquidity ratio covenant, and clarified that “Adjusted Term SOFR” (as defined in the Credit Agreement) is inclusive of a 10 basis point credit spread adjustment. Amounts outstanding under the Credit Facilities bear interest at Adjusted Term SOFR plus credit spreads indicated by our Consolidated Total Lease Adjusted Leverage Ratio (as defined in the Credit Agreement).

As of June 30, 2026, the aggregate commitments consisted of $1.5 billion for the new vehicle floor plan, $550.0 million for the used vehicle floor plan and $350.0 million for the Revolving Credit Facility. Availability under the Revolving Credit Facility is calculated as the lesser of the $350.0 million commitment or a borrowing base collateralized by eligible assets, less any outstanding letters of credit and borrowings. As of June 30, 2026, the Revolving Borrowing Base was $298.5 million and we had $11.6 million in outstanding letters of credit and no borrowings, resulting in $286.9 million of availability.

4.875 Notes Text [Text Block]

Covenants Text Block [Text Block]

Covenants

The Credit Facilities, Mortgage Facility, Sidecar Facility, Bridge Facility and Senior Notes each contain covenants which could prohibit the issuance of additional indebtedness, the payment of dividends over certain limits, other restricted payments such as share repurchases, certain types of capital expenditures and asset purchases and material dispositions and acquisitions. They also contain other covenants and default provisions, including cross defaults to other material indebtedness, change of control events and other events of default customary for commercial credit facilities. Upon the occurrence of an event of default, we could be required to repay all outstanding amounts under these facilities.

Financial covenants for the Credit Facilities, Mortgage Facility, Sidecar Facility and Bridge Facility include a minimum Consolidated Fixed Charge Coverage Ratio (as defined in each agreement) of 1.20 to 1.00 and a maximum Consolidated Total Lease Adjusted Leverage Ratio (as defined in each agreement) of 5.75 to 1.00. Similar financial covenants apply to our Senior Notes as well as to certain facility leases and their related guaranty agreements. We remain in compliance with all restrictive covenants as of June 30, 2026.

2019 Mortgage Facility Text Block [Text Block]

Mortgage Facility and Sidecar Facility

On November 22, 2019, we entered into an agreement between, among others, the Company and PNC Bank, N.A., as administrative agent, providing for both revolving credit and delayed draw term loans (as amended to date, the “Mortgage Facility”).

On March 22, 2024, we amended the Mortgage Facility to conform to the terms of the Sixth Credit Facility Amendment.

On May 17, 2024, we incurred a $78.0 million term loan as required under the Mortgage Facility in order to achieve full term loan utilization.

On December 27, 2024, we entered into an agreement, which established a syndicated mortgage loan facility (the “Sidecar Facility”) providing an incremental $149.1 million of term loan commitments. Though the Sidecar Facility is distinct and separate from the Mortgage Facility, the two facilities contain similar terms and conditions, are coterminous, and use one month Adjusted Term SOFR as a base rate with the same pricing grid.

On October 24, 2025, we incurred an additional $149.1 million term loan as required under the Sidecar Facility in order to achieve full utilization.

Interest on the Mortgage Facility and Sidecar Facility is paid monthly in arrears. Amortizing principal payments are 1.875% of the cumulative amount drawn on the term loan portion of Mortgage Facility and Sidecar Facility each quarter end through September 30, 2027, with the remaining balances due on the November 17, 2027 maturity date. We have the right to prepay outstanding principal on either facility at any time without premium or penalty provided that the prepayment amount exceeds $0.5 million.

As of June 30, 2026, we had $284.0 million of outstanding term borrowings and $95.0 million available for revolving loans under the Mortgage Facility. In addition, we had $137.5 million of outstanding term borrowings under the Sidecar Facility.

Mortgage Notes Text Block [Text Block]

Notes to Finance Companies

Our notes to finance companies (excluding the Mortgage Facility, Sidecar Facility, and Bridge Facility) had a weighted-average interest rate of 4.95% and a combined principal balance of $54.6 million as of June 30, 2026. These notes require monthly payments of principal and interest through their respective maturities, are secured by underlying properties or other collateral and contain certain cross-default provisions. These notes mature between 2028 and 2034.