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CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2009
Net income	$ 77,782	$ 57,658	$ 49,764
Other comprehensive income (loss):
Currency translation adjustment, gross	(15,797)	5,546	4,884
Tax (expense) benefit	5,383	(2,104)	(1,807)
Comprehensive income	$ 67,368	$ 61,100	$ 52,841

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The change in equity [net assets] of a business enterprise during a period from transactions and other events and circumstances from non-owner sources which are attributable to the reporting entity. It includes all changes in equity during a period except those resulting from investments by owners and distributions to owners, but excludes any and all transactions which are directly or indirectly attributable to that ownership interest in subsidiary equity which is not attributable to the parent.

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