Condensed Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Millions	Apr. 01, 2016	Dec. 31, 2015
Statement of Financial Position [Abstract]
Allowances for receivables	$ 18.9	$ 17.6
Common stock, par value (usd per share)	$ 0.01	$ 0.01
Common stock, shares issued	49,236,099	48,908,227
Common stock, shares outstanding	49,236,099	48,908,227
Treasury stock, shares	9,573,867	9,901,739