Quarterly report [Sections 13 or 15(d)]

Segment Information - Additional Information (Details)

v3.25.3
Segment Information - Additional Information (Details)
$ in Thousands
 3 Months Ended 9 Months Ended
Sep. 30, 2025
USD ($)
Sep. 30, 2024
USD ($)
Sep. 30, 2025
USD ($)
Segment
Sep. 30, 2024
USD ($)
Segment Reporting [Abstract]        
Number of operating segments | Segment     3  
Impairment charges $ 0 $ 0 $ (173,800) $ (2,400)
Segment Reporting Information [Line Items]        
Revenues 3,973,800 3,491,500 11,282,300 10,328,500
Retail New Vehicles [Member]        
Segment Reporting Information [Line Items]        
Revenues 1,872,800 1,566,800 5,195,200 4,575,200
Fleet New Vehicles [Member]        
Segment Reporting Information [Line Items]        
Revenues 26,000 22,200 77,400 68,000
New vehicles        
Segment Reporting Information [Line Items]        
Revenues 1,898,800 1,589,000 5,272,600 4,643,200
Used vehicles        
Segment Reporting Information [Line Items]        
Revenues 1,253,100 1,180,700 3,658,800 3,582,500
Wholesale vehicles        
Segment Reporting Information [Line Items]        
Revenues 84,200 67,200 250,500 215,800
Total vehicles        
Segment Reporting Information [Line Items]        
Revenues 3,236,100 2,836,900 9,181,900 8,441,500
Parts, service and collision repair        
Segment Reporting Information [Line Items]        
Revenues 533,900 479,000 1,503,800 1,369,800
Finance, insurance and other, net        
Segment Reporting Information [Line Items]        
Revenues $ 203,800 $ 175,600 $ 596,600 $ 517,200