Acquisitions (Schedule Of Pro Forma Financial Information) (Details) (USD $) In Millions, except Per Share data, unless otherwise specified	12 Months Ended
	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2009
Acquisitions [Abstract]
Net sales	$ 1,173.0	$ 1,032.0	$ 989.0
Net income	$ 71.0	$ 50.0	$ 51.0
Basic earnings per share	$ 1.95	$ 1.39	$ 1.44
Diluted earnings per share	$ 1.92	$ 1.37	$ 1.43