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CONDENSED CONSOLIDATED BALANCE SHEETS (Parenthetical) - USD ($) $ in Millions	Mar. 31, 2023	Dec. 31, 2022
Statement of Financial Position [Abstract]
Accumulated depreciation	$ 578.2	$ 554.4
Offset account related to floorplan notes payable	106.7	140.2
FMCC offset	$ 16.1	$ 13.4
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)	25,150,165	25,232,620
Treasury stock
Treasury stock (in shares)	11,007,160	10,940,298

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FMCC Offset

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Floorplan offset.

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Face amount or stated value per share of common stock.

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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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