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CONDENSED CONSOLIDATED BALANCE SHEETS (Parenthetical) - USD ($) $ in Millions	Jun. 30, 2023	Dec. 31, 2022
Statement of Financial Position [Abstract]
Accumulated depreciation	$ 572.1	$ 554.4
Offset account related to floorplan notes payable	250.0	140.2
FMCC offset	$ 17.7	$ 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)	25,164,166	25,232,620
Treasury stock
Treasury stock (in shares)	11,113,291	10,940,298

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FMCC Offset

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Face amount or stated value per share of common stock.

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The maximum number of common shares permitted to be issued by an entity's charter and bylaws.

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Total number of common shares of an entity that have been sold or granted to shareholders (includes common shares that were issued, repurchased and remain in the treasury). These shares represent capital invested by the firm's shareholders and owners, and may be all or only a portion of the number of shares authorized. Shares issued include shares outstanding and shares held in the treasury.

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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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