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Condensed Consolidated Statements of Comprehensive Income (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Apr. 30, 2013	Apr. 30, 2012
Net income	$ 47,058	$ 33,957
Other comprehensive (loss) income:
Foreign currency translation	(2,477)	4,774
Change in unrealized gains on marketable securities, net of tax	390	1,351
Total other comprehensive (loss) income	(2,087)	6,125
Comprehensive income	$ 44,971	$ 40,082

X

- Definition

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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