Consolidated Balance Sheets (Parenthetical) (USD $) In Millions, except Share data, unless otherwise specified	Dec. 31, 2011	Dec. 31, 2010
Consolidated Balance Sheets [Abstract]
Allowances for discounts, doubtful accounts and returns.	$ 13.9	$ 15.6
Accumulated amortization for intangibles	$ 102.3	$ 96.4
Preferred stock, par value	$ 0.01	$ 0.01
Preferred stock, shares authorized	25,000,000	25,000,000
Preferred stock, shares issued	0	0
Preferred stock, shares outstanding	0	0
Common stock, par value	$ 0.01	$ 0.01
Common stock, shares authorized	200,000,000	200,000,000
Common stock, shares issued	55,659,753	55,080,463
Common stock, shares outstanding	55,475,735	54,922,783
Treasury stock, shares	184,018	157,680