Condensed Consolidated Balance Sheets (Unaudited) (Parentheticals) - USD ($) $ in Millions	Sep. 30, 2022	Dec. 31, 2021
Statement of Financial Position [Abstract]
Allowance for doubtful accounts	$ 4.4	$ 6.0
Common stock, par value (usd per share)	$ 0.01	$ 0.01
Common stock, shares authorized (shares)	150,000,000	150,000,000
Common stock, shares issued (shares)	36,634,383	36,548,330
Common stock, shares outstanding (shares)	36,634,383	36,548,330
Treasury stock (shares)	760,782	760,782

Amount of allowance for credit loss on accounts receivable, classified as current.

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