Income And Deferred Taxes (Summary Of Tax Examinations) (Detail)	12 Months Ended
	Dec. 31, 2011 Year
Poland [Member]
Operating Loss Carryforwards [Line Items]
Maximum number of years subject to examinations	5
Hungary [Member]
Operating Loss Carryforwards [Line Items]
Maximum number of years subject to examinations	6
Russia [Member]
Operating Loss Carryforwards [Line Items]
Maximum number of years subject to examinations	3