Condensed Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Millions	Oct. 02, 2015	Dec. 31, 2014
Statement of Financial Position [Abstract]
Allowances for receivables	$ 16.4	$ 20.3
Common stock, par value (usd per share)	$ 0.01	$ 0.01
Common stock, shares issued	48,885,697	48,683,493
Common stock, shares outstanding	48,885,697	48,683,493
Treasury stock, shares	9,924,269	10,126,473