Business Combinations - Narrative (Details) $ in Millions	6 Months Ended
Jun. 30, 2024 USD ($) franchise dealership
Business Acquisition [Line Items]
Revenue from date of acquisition of companies acquired \| $	$ 418.4
Pre-tax income from date of acquisition of companies acquired \| $	$ 8.3
U.K. \| Retail automotive dealership \| Franchised Dealerships
Business Acquisition [Line Items]
Number of franchises acquired	16
ITALY \| Retail automotive dealership \| Franchised Dealerships
Business Acquisition [Line Items]
Number of franchises acquired	2
AUSTRALIA \| Retail automotive dealership \| Franchised Dealerships
Business Acquisition [Line Items]
Number of franchises acquired	2
U.S. \| Retail commercial truck dealership \| Franchised Dealerships \| Full-Service Dealership
Business Acquisition [Line Items]
Number of franchises acquired \| dealership	3
U.S. \| Retail commercial truck dealership \| Franchised Dealerships \| Collision Center
Business Acquisition [Line Items]
Number of franchises acquired \| dealership	2

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