Condensed Consolidated Balance Sheets (Parenthetical) (USD $) In Millions, except Share data, unless otherwise specified	Sep. 28, 2012	Dec. 31, 2011
Statement of Financial Position [Abstract]
Allowances for receivables	$ 23.0	$ 17.2
Redeemable convertible preferred stock, liquidation preference	$ 50	$ 50
Redeemable convertible preferred stock, shares outstanding	76,002	76,002
Common stock, par value	$ 0.01	$ 0.01
Common stock, shares issued	49,721,183	49,697,763
Common stock, shares outstanding	49,721,183	49,697,763
Treasury stock, shares	8,740,435	8,758,267