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Consolidated Balance Sheets (Parenthetical) - USD ($)
$ in Millions
Dec. 31, 2015
Dec. 31, 2014
Statement of Financial Position [Abstract]    
Allowances for doubtful accounts $ 3.6 $ 3.9
Inventory allowances $ 8.8 $ 10.2
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 5,453,078 5,263,481