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Income Taxes - Additional Information (Detail) (USD $)	3 Months Ended		9 Months Ended
Income Taxes - Additional Information (Detail) (USD $)	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2012	Sep. 30, 2011	Dec. 31, 2011
Income tax expense	$ 5,786,000	$ (18,422,000)	$ 7,820,000	$ (14,232,000)
Effective income tax rate			48.60%
Uncertain income tax position balance	$ 8,000,000		$ 8,000,000		$ 7,100,000
Poland [Member]
Underlying tax rate			19.00%
Russia [Member]
Underlying tax rate			20.00%
Ukraine [Member]
Underlying tax rate			21.00%
Hungary [Member]
Underlying tax rate			16.00%
United States [Member]
Underlying tax rate			35.00%

- Definition

A ratio calculated by dividing the reported amount of income tax expense attributable to continuing operations for the period by GAAP-basis pretax income from continuing operations.

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- Definition

The sum of the current income tax expense or benefit and the deferred income tax expense or benefit pertaining to continuing operations.

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