v3.26.1
Summary of Significant Accounting Policies - Cumulative Effect of Adjustments for Adoption of ASC 606 (Details) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
Dec. 31, 2025
Revenues:          
Revenues $ 3,934,000 $ 3,657,200 $ 7,622,500 $ 7,308,500  
Cost of Sales:          
Cost of Sales (3,317,800) (3,055,000) (6,407,600) (6,139,800)  
Operating income (loss) 131,600 (23,300) 264,300 121,600  
Assets:          
Receivables, net 425,600   425,600   $ 469,000
Liabilities:          
Other accrued liabilities 414,400   414,400   409,100
Stockholders' Equity:          
Retained Earnings (Accumulated Deficit) 1,573,900   1,573,900   1,481,100
Parts, service and collision repair          
Revenues:          
Revenues 530,200 495,600 1,046,900 970,000  
Cost of Sales:          
Cost of Sales (258,800) (241,700) (510,900) (475,500)  
Finance, insurance and other, net          
Revenues:          
Revenues 209,500 $ 202,100 412,000 $ 392,800  
Assets:          
Contract assets $ 9,800   $ 9,800   $ 7,000