Summary Of Significant Accounting Policies (Schedule Of Estimated Useful Life Of Asset Group) (Details)	12 Months Ended
	Dec. 31, 2011
Buildings [Member]
Property, Plant and Equipment [Line Items]
Estimated useful life, minimum in years	10
Estimated useful life, maximum in years	40
Machinery And Equipment [Member]
Property, Plant and Equipment [Line Items]
Estimated useful life, minimum in years	3
Estimated useful life, maximum in years	15
Office Equipment, Furniture And Fixtures [Member]
Property, Plant and Equipment [Line Items]
Estimated useful life, minimum in years	3
Estimated useful life, maximum in years	7
Computer Software And Hardware [Member]
Property, Plant and Equipment [Line Items]
Estimated useful life, minimum in years	3
Estimated useful life, maximum in years	7