Segment Information on Goodwill (Detail) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2013	Dec. 31, 2012
Segment Reporting Information [Line Items]
Total Goodwill	$ 374,434	$ 388,385
Poland
Segment Reporting Information [Line Items]
Total Goodwill	203,436	213,897
Russia
Segment Reporting Information [Line Items]
Total Goodwill	164,818	167,848
Hungary
Segment Reporting Information [Line Items]
Total Goodwill	$ 6,180	$ 6,640

Carrying amount as of the balance sheet date, which is the cumulative amount paid and (if applicable) the fair value of any noncontrolling interest in the acquiree, adjusted for any amortization recognized prior to the adoption of any changes in generally accepted accounting principles (as applicable) and for any impairment charges, in excess of the fair value of net assets acquired in one or more business combination transactions.

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+ Details