Operating Segments - Segment Information On Operating Income / (Loss) (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2012	Sep. 30, 2011
Segment Reporting Information [Line Items]
Gain on remeasurement of previously held equity interests	$ 0	$ 0	$ 0	$ 7,898
Impairment charge	0	(674,515)	0	(674,515)
Operating income	15,179	(658,014)	24,557	(641,925)
Russia after fair value adjustments	35,769	(848,735)	8,264	(854,102)
Option Expense			(1,919)	(1,998)
Poland [Member]
Segment Reporting Information [Line Items]
Poland before fair value adjustments	11,905	8,120	27,497	21,155
Gain on remeasurement of previously held equity interests	0	0	0	7,898
Impairment charge	0	(213,687)	0	(213,687)
Operating income	11,905	(205,567)	27,497	(184,634)
Russia [Member]
Segment Reporting Information [Line Items]
Impairment charge	0	(460,828)	0	(460,828)
Operating income	19,634	9,167	20,221	6,011
Russia after fair value adjustments	19,634	(451,661)	20,221	(454,817)
Hungary [Member]
Segment Reporting Information [Line Items]
Operating income	987	1,446	2,469	3,387
Corporate [Member]
Segment Reporting Information [Line Items]
General corporate overhead	(17,017)	(1,570)	(23,711)	(3,862)
Option Expense	$ (330)	$ (662)	$ (1,919)	$ (1,999)