Consolidated Balance Sheets (Parenthetical) - USD ($) shares in Millions, $ in Millions	Dec. 31, 2020	Dec. 31, 2019
Consolidated Balance Sheets
Accounts receivable, allowance for credit loss	$ 6.3	$ 4.3
Common stock, shares authorized	150.0	150.0
Common stock, stated value (in dollars per share)	$ 0.75	$ 0.75
Common stock, shares outstanding	43.2	42.9

Amount of allowance for credit loss on accounts receivable.

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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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Number of shares of common stock outstanding. Common stock represent the ownership interest in a corporation.

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