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Shareholders' Equity (Tables) | 9 Months Ended
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Sep. 30, 2025
Stockholders' Equity Note [Abstract] |
Shares Repurchased Under Stock Repurchase Program | A summary of shares repurchased under our stock repurchase program authorized by our Board of Directors follows:
| Three Months Ended |  | Nine Months Ended
| September 30, |  | September 30,
| 2025 |  | 2024 |  | 2025 |  | 2024
Shares repurchased (in actual number of shares) | 834,984 |  |  | 36,192 |  |  | 2,381,634 |  |  | 2,232,007 |
Aggregate purchase price (1) | $ | 181.0 |  |  | $ | 5.6 |  |  | $ | 434.8 |  |  | $ | 355.6 |
Average purchase price per share | $ | 216.81 |  |  | $ | 156.03 |  |  | $ | 182.56 |  |  | $ | 159.34 |
(1) Excludes the excise tax imposed under the Inflation Reduction Act of $1.8 million and $3.9 million for the three and nine months ended September 30, 2025, respectively, and $0.1 million and $3.2 million for the three and nine months ended September 30, 2024, respectively.
Shares Issued And Shares Surrendered To Satisfy Tax Withholdings In Connection With Restricted Stock Units | The following table presents a summary of shares of common stock issued and shares surrendered to AutoNation to satisfy tax withholding obligations, each in connection with the settlement of RSUs:
| Three Months Ended |  | Nine Months Ended
| September 30, |  | September 30,
(In actual number of shares) | 2025 |  | 2024 |  | 2025 |  | 2024
Shares issued | 3,383 |  |  | 3,649 |  |  | 321,955 |  |  | 343,489 |
Shares surrendered to AutoNation to satisfy tax withholding obligations | 1,314 |  |  | 1,401 |  |  | 109,948 |  |  | 116,547 |

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