Inventories and Related Notes Payable - Floor Plan - Additional Information (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Inventory Disclosure [Abstract]
Average interest rate for new vehicle floor plan facilities	6.36%	1.09%	0.74%
Amount recognized for floor plan assistance	$ 58,700	$ 51,500	$ 46,500
Average interest rate for used vehicle floor plan facilities	6.76%	3.87%	1.75%
Floor Plan Deposit Balance	$ 345,000	$ 272,000
Reduction in Interest Expense, Floor Plan	19,400	4,100	$ 1,300
Service loaners (1)	172,700	143,800
Service Loaner Inventory (Directly Leased from Manufacturer) [Member]	$ 22,700	$ 18,300