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Consolidated Balance Sheets (Parenthetical) - USD ($)
shares in Millions, $ in Millions
Dec. 31, 2021
Dec. 31, 2020
Consolidated Balance Sheets    
Accounts receivable, allowance for credit loss $ 10.1 $ 6.3
Common stock, shares authorized 150.0 150.0
Common stock, stated value (in dollars per share) $ 0.75 $ 0.75
Common stock, shares outstanding 41.0 43.2