Inventories and Floor Plan Payables - Supplier Finance Program (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2024 USD ($)
Supplier finance program
Notes payable - floor plan, net, beginning of year	$ 1,371,145
Supplier Finance Program, Obligation, Statement of Financial Position [Extensible Enumeration]	Notes payable - floor plan, net, end of period
Notes payable - floor plan, net, end of period	$ 1,161,713
Floor Plan Facility
Supplier finance program
Notes payable - floor plan, net, beginning of year	1,371,145
Add: FLAIR offset account, beginning of year	145,047
Add: short-term payable for sold inventory, beginning of year	41,577
Confirmed obligations outstanding, beginning of year	1,557,769
Add: new obligations confirmed during the period	2,292,615
Less: confirmed obligations paid during the period	(2,576,047)
Confirmed obligations outstanding, end of period	1,274,337
Less: FLAIR offset account, end of period	(79,472)
Less: short-term payable for sold inventory, end of period	(33,152)
Notes payable - floor plan, net, end of period	$ 1,161,713