v3.26.1
ACQUISITIONS AND DISPOSITIONS (Details)
$ in Millions
1 Months Ended 3 Months Ended
Apr. 30, 2026
USD ($)
Mar. 31, 2026
USD ($)
dealership
Mar. 31, 2025
USD ($)
dealership
franchise
Dec. 31, 2025
USD ($)
Business Combination        
Goodwill   $ 2,126.5   $ 2,204.9
Proceeds from disposition of franchises, property and equipment   266.5 $ 30.7  
Asset impairments   $ 2.5 1.5  
Disposed of by Sale        
Business Combination        
Dispositions reduced goodwill     4.6  
Asset impairments     $ 2.7  
Held-for-sale        
Business Combination        
Goodwill       $ 39.5
U.K.        
Business Combination        
Number of dealerships acquired | dealership   3 4  
U.K. | Disposed of by Sale        
Business Combination        
Net pre-tax gain (loss) on dealership dispositions   $ (0.3)    
Number of dealerships | dealership   2 2  
Dispositions reduced goodwill   $ 0.8    
U.K. | Volkswagen Dealerships        
Business Combination        
Number of dealerships acquired | dealership   2    
U.K. | Skoda Dealerships        
Business Combination        
Number of dealerships acquired | dealership   1    
U.K. | 2026 Business Acquisitions        
Business Combination        
Aggregate consideration paid for dealerships   $ 0.6    
U.K. | Toyota Dealerships        
Business Combination        
Number of dealerships acquired | dealership     3  
U.K. | Lexus Dealership        
Business Combination        
Number of dealerships acquired | dealership     1  
U.K. | 2025 Business Acquisitions        
Business Combination        
Aggregate consideration paid for dealerships     $ 16.4  
Goodwill     2.4  
U.S. | Disposed of by Sale        
Business Combination        
Net pre-tax gain (loss) on dealership dispositions   $ 44.2 $ 1.6  
Number of dealerships | dealership   2 1  
Dispositions reduced goodwill   $ 109.4    
Settlement price from disposition of franchise property and equipment   $ 41.2    
Number of franchises | franchise     4  
U.S. | Disposed of by Sale | Subsequent Event        
Business Combination        
Proceeds from disposition of franchises, property and equipment $ 34.3