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CONDENSED CONSOLIDATED BALANCE SHEETS (Unaudited) (Parenthetical) - USD ($) $ in Millions	Mar. 31, 2022	Dec. 31, 2021
Statement of Financial Position [Abstract]
Accumulated depreciation	$ 529.9	$ 513.5
Offset account related to floorplan notes payable	197.2	268.6
FMCC offset	$ 2.4	$ 3.3
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)	25,266,915	25,336,054
Treasury stock
Treasury stock (in shares)	8,666,078	8,160,228

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Amount of accumulated depreciation and amortization from plant, property, and equipment and right-of-use asset from finance lease.

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