Goodwill - Additional Information (Detail) (USD $)	12 Months Ended
	Dec. 31, 2012 Y	Dec. 31, 2011
Goodwill [Line Items]
Goodwill Impairment charges	$ 327,847,000	$ 930,127,000
Impairment charges related to goodwill	1,257,900,000	930,100,000
Projected cash flow period plan, years	5
Poland
Goodwill [Line Items]
Goodwill Impairment charges	64,000,000
Estimated discount rate	9.32%
Estimated terminal value growth rate	2.50%
Poland | Scenario 2
Goodwill [Line Items]
Goodwill impairment charge increase (decrease)	49,900,000
Poland | Scenario 3
Goodwill [Line Items]
Goodwill impairment charge increase (decrease)	19,100,000
Poland | Scenario 5
Goodwill [Line Items]
Goodwill impairment charge increase (decrease)	(19,100,000)
Russia
Goodwill [Line Items]
Goodwill Impairment charges	263,800,000
Estimated discount rate	9.86%
Estimated terminal value growth rate	3.00%
Percentage by which operating profit is lower than budgeted to trigger goodwill impairment charge	16.00%
Russia | Scenario 2
Goodwill [Line Items]
Goodwill Impairment charges	$ 0
Russia | Scenario 3
Goodwill [Line Items]
Description of fair value vs book value determination of goodwill	The reporting unit's fair value would still exceed its book value
Hungary
Goodwill [Line Items]
Estimated discount rate	11.41%
Estimated terminal value growth rate	2.70%