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Business Combinations - Narrative (Details)	6 Months Ended
Business Combinations - Narrative (Details)	Jun. 30, 2025 franchise dealership	Jun. 30, 2024 franchise
Business Combination, Separately Recognized Transaction [Line Items]
Number of franchises acquired	0
U.K. \| Retail automotive dealership \| Franchised Dealerships
Business Combination, Separately Recognized Transaction [Line Items]
Number of franchises acquired		16
ITALY \| Retail automotive dealership \| Franchised Dealerships
Business Combination, Separately Recognized Transaction [Line Items]
Number of franchises acquired		2
AUSTRALIA \| Retail automotive dealership \| Franchised Dealerships
Business Combination, Separately Recognized Transaction [Line Items]
Number of franchises acquired		2
U.S. \| Retail commercial truck dealership \| Franchised Dealerships \| Full-Service Dealership
Business Combination, Separately Recognized Transaction [Line Items]
Number of franchises acquired \| dealership	3
U.S. \| Retail commercial truck dealership \| Franchised Dealerships \| Collision Center
Business Combination, Separately Recognized Transaction [Line Items]
Number of franchises acquired \| dealership	2