CONDENSED CONSOLIDATED BALANCE SHEETS (Parenthetical) - USD ($) $ in Millions	Mar. 31, 2024	Dec. 31, 2023
Statement of Financial Position [Abstract]
Accumulated depreciation	$ 602.2	$ 587.7
Offset account related to floorplan notes payable	210.2	236.7
FMCC offset	$ 0.0	$ 38.5
Preferred stock
Par value (in dollars per share)	$ 0.01	$ 0.01
Shares authorized (in shares)	50,000,000	50,000,000
Shares issued (in shares)	25,109,781	25,131,460
Treasury stock
Treasury stock (in shares)	11,575,624	11,447,422