Summary Of Significant Accounting Policies (Schedule Of Estimated Useful Lives For Property And Equipment) (Details)	12 Months Ended
	Dec. 31, 2015
Leasehold Improvements [Member]
Property, Plant and Equipment [Line Items]
Estimated useful life	Shorter of remaining lease term or useful life of improvements
Maximum [Member] | Land Improvements [Member]
Property, Plant and Equipment [Line Items]
Estimated useful life	20
Maximum [Member] | Building And Improvements [Member]
Property, Plant and Equipment [Line Items]
Estimated useful life	40
Maximum [Member] | Machinery And Equipment [Member]
Property, Plant and Equipment [Line Items]
Estimated useful life	8
Maximum [Member] | Office Furniture And Equipment [Member]
Property, Plant and Equipment [Line Items]
Estimated useful life	7
Maximum [Member] | Computer Hardware And Software [Member]
Property, Plant and Equipment [Line Items]
Estimated useful life	7
Minimum [Member] | Land Improvements [Member]
Property, Plant and Equipment [Line Items]
Estimated useful life	15
Minimum [Member] | Building And Improvements [Member]
Property, Plant and Equipment [Line Items]
Estimated useful life	15
Minimum [Member] | Machinery And Equipment [Member]
Property, Plant and Equipment [Line Items]
Estimated useful life	3
Minimum [Member] | Office Furniture And Equipment [Member]
Property, Plant and Equipment [Line Items]
Estimated useful life	3
Minimum [Member] | Computer Hardware And Software [Member]
Property, Plant and Equipment [Line Items]
Estimated useful life	3