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Income Taxes (Narrative) (Detail) (USD $)	3 Months Ended
Income Taxes (Narrative) (Detail) (USD $)	Mar. 31, 2012	Dec. 31, 2011
Income tax expense	$ 4,685,000
Effective income tax rate	7.20%
Uncertain income tax position balance	$ 7,000,000	$ 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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