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ACQUISITIONS - Other Acquisitions (Details) $ in Millions |  | 12 Months Ended
--- | --- | ---
Aug. 01, 2024 USD ($) dealership center | Dec. 31, 2024 USD ($) dealership center | Dec. 31, 2023 USD ($) dealership | Dec. 31, 2022 USD ($) dealership
Business Acquisition |  |  |  |
Additions through acquisitions | $ |  | $ 449.4 | $ 49.7 |
Inchcape plc’s |  |  |  |
Business Acquisition |  |  |  |
Number of dealerships acquired | dealership | 54 |  |  |
Number of collision centers | center | 3 |  |  |
Aggregate consideration paid for dealerships | $ | $ 517.0 |  |  |
U.S. |  |  |  |
Business Acquisition |  |  |  |
Number of dealerships acquired | dealership |  | 9 | 6 | 6
Aggregate consideration paid for dealerships | $ |  | $ 690.4 | $ 365.8 | $ 507.5
Additions through acquisitions | $ |  | $ 288.3 | 49.7 | 236.1
U.S. | Honda Dealership |  |  |  |
Business Acquisition |  |  |  |
Number of dealerships acquired | dealership |  | 3 |  |
U.S. | Lexus Dealership |  |  |  |
Business Acquisition |  |  |  |
Number of dealerships acquired | dealership |  | 2 |  |
U.S. | Toyota Dealership |  |  |  |
Business Acquisition |  |  |  |
Number of dealerships acquired | dealership |  | 1 |  |
U.S. | Kia Dealership |  |  |  |
Business Acquisition |  |  |  |
Number of dealerships acquired | dealership |  | 1 |  |
U.S. | Hyundai Dealership |  |  |  |
Business Acquisition |  |  |  |
Number of dealerships acquired | dealership |  | 1 |  |
U.S. | Mercedes-Benz Dealership |  |  |  |
Business Acquisition |  |  |  |
Number of dealerships acquired | dealership |  | 1 |  |
U.S. | Inchcape plc’s |  |  |  |
Business Acquisition |  |  |  |
Number of collision centers | center |  | 3 |  |
U.S. | Toyota Certified Pre-owned Center |  |  |  |
Business Acquisition |  |  |  |
Number Of Certified Pre-Owned Center | center |  | 1 |  |
U.K. |  |  |  |
Business Acquisition |  |  |  |
Number of dealerships acquired | dealership |  | 5 |  |
Additions through acquisitions | $ |  | $ 161.1 | $ 0.0 |
U.K. | Mercedes-Benz Dealership |  |  |  |
Business Acquisition |  |  |  |
Number of dealerships acquired | dealership |  | 4 |  |
Aggregate consideration paid for dealerships | $ |  | $ 110.1 |  |
Cash paid | $ |  | 111.1 |  |
Additions through acquisitions | $ |  | 46.3 |  |
U.K. | Mercedes-Benz Dealership | Scenario, Plan |  |  |  |
Business Acquisition |  |  |  |
Cash paid | $ |  | $ 1.1 |  |
U.K. | BMW/MINI Dealership |  |  |  |
Business Acquisition |  |  |  |
Number of dealerships acquired | dealership |  | 1 |  |
U.K. | Other Acquisitions |  |  |  |
Business Acquisition |  |  |  |
Aggregate consideration paid for dealerships | $ |  |  |  | 34.1
Additions through acquisitions | $ |  |  |  | $ 10.2

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