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Condensed Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Millions	Sep. 30, 2020	Dec. 31, 2019
Statement of Financial Position [Abstract]
Allowances for doubtful accounts	$ 4.7	$ 3.8
Inventory allowances	$ 18.3	$ 14.5
Common stock, par value	$ 0.01	$ 0.01
Common stock, shares authorized	40,000,000	40,000,000
Common stock, shares issued	29,554,500	29,554,500
Treasury stock, shares	4,974,805	5,047,278

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

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