Organization And Significant Accounting Policies (Components Of Depreciation Of Property,Plant And Equipment) (Details)	12 Months Ended
	Dec. 31, 2011
Transportation Equipment Including Capital Leases [Member]
Property, Plant and Equipment [Line Items]
Depreciation life in years	5
Production Equipment [Member]
Property, Plant and Equipment [Line Items]
Depreciation life in years	10
Software [Member]
Property, Plant and Equipment [Line Items]
Depreciation life in years	5
Computers And IT Equipment [Member]
Property, Plant and Equipment [Line Items]
Depreciation life in years	3
Other Equipment [Member]
Property, Plant and Equipment [Line Items]
Depreciation life in years, minimum	2
Depreciation life in years, maximum	10
Freehold Buildings [Member]
Property, Plant and Equipment [Line Items]
Depreciation life in years	40