CONSOLIDATED STATEMENTS OF CASH FLOWS (Parenthetical) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Repayment of sellers' floor plan notes payable	$ 24.3	$ 51.3	$ 43.0
3.75% senior subordinated notes due 2029
Interest rate	3.75%	3.75%	3.75%
5.50% senior subordinated notes due 2026
Interest rate	5.50%	5.50%	5.50%