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Condensed Consolidated Statements of Comprehensive Income (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2012	Mar. 31, 2011
Net income	$ 16,412	$ 52,642
Other comprehensive income (loss), net of tax
Unrealized (loss) gain on available-for-sale securities	(118)	63
Less: Reclassification adjustments for gains included in net income	(10)	(37)
Net unrealized (loss) gain on available-for-sale securities	(128)	26
Foreign currency translation	(489)	471
Comprehensive income	$ 15,795	$ 53,139

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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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