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Business Combinations - Narrative (Details) $ in Millions | 12 Months Ended
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Dec. 31, 2023 USD ($) franchise shop center dealership | Dec. 31, 2022 franchise dealership
Business Acquisition [Line Items] |  |
Revenue from date of acquisition of companies acquired | $ | $ 146.6 |
Pre-tax income from date of acquisition of companies acquired | $ | $ 5.1 |
Retail automotive dealership | Franchised Dealerships |  |
Business Acquisition [Line Items] |  |
Number of Businesses Acquired |  | 19
Canada | Retail commercial truck dealership | Full-Service Commercial Truck Dealerships |  |
Business Acquisition [Line Items] |  |
Number of Businesses Acquired | dealership | 3 |
Number of full service dealerships acquired | dealership |  | 4
Canada | Retail commercial truck dealership | Service and Parts Centers |  |
Business Acquisition [Line Items] |  |
Number of Businesses Acquired | center | 2 |
U.S. | Retail automotive dealership | Franchised Dealerships |  |
Business Acquisition [Line Items] |  |
Number of Businesses Acquired | 2 | 4
Italy | Retail automotive dealership | Franchised Dealerships |  |
Business Acquisition [Line Items] |  |
Number of Businesses Acquired | 2 |
Italy | Retail automotive dealership | Body Shops |  |
Business Acquisition [Line Items] |  |
Number of Businesses Acquired | shop | 1 |
AUSTRALIA | Commercial vehicle distribution and other | Service Centers |  |
Business Acquisition [Line Items] |  |
Number of Businesses Acquired | center | 1 |
U.K. | Retail automotive dealership | Franchised Dealerships |  |
Business Acquisition [Line Items] |  |
Number of Businesses Acquired |  | 15

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