INVESTMENTS (Tables)

9 Months Ended

Aug. 31, 2012

Summary of Marketable Securities which are Classified as Available-for-Sale

Marketable securities, which are classified as available-for-sale and included either in cash and cash equivalents if their maturities were three months or less or in short-term investments on the Condensed Consolidated Balance Sheet, are summarized below as of August 31, 2012 and November 30, 2011 (in thousands):

	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses			Aggregate Fair Value
As of August 31, 2012:
Money market funds	$	363,251	$	—	$	—		$	363,251
Term deposits		583		—		—			583
Mortgage-backed securities		187		51		(42	)		196
	$	364,021	$	51	$	(42	)	$	364,030
As of November 30, 2011:
Money market funds	$	16,664	$	—	$	—		$	16,664
Term deposits		560		—		—			560
Mortgage-backed securities		200		51		(26	)		225
	$	17,424	$	51	$	(26	)	$	17,449