Goodwill and Other Intangible Assets (Narrative) (Details) (USD $) In Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2011	Sep. 30, 2010	Sep. 30, 2011	Sep. 30, 2010
Goodwill and Other Intangible Assets [Abstract]
Amortization of other intangible assets	$ 4.2	$ 4.1	$ 12.8	$ 12.4
Future amortization expense recognized in remainder of current year			4.2
Future amortization expense 2012			15.9
Future amortization expense 2013			13.1
Future amortization expense 2014			7.6
Future amortization expense 2015			$ 5.1