INVESTMENTS (Tables)

9 Months Ended

Aug. 31, 2014

Investments [Abstract]

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

Short-term investments and cash equivalents, which are classified as available-for-sale, are summarized below as of August 31, 2014 and November 30, 2013 (in thousands):

	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses			Aggregate Fair Value
As of August 31, 2014
Money market funds	$	14,192	$	—	$	—		$	14,192
Corporate bonds and commercial paper	156,919		434		(9		)	157,344
U.S. Government debt and agency securities	20,324		8		—			20,332
Mortgage-backed securities	202		236		(26		)	412
	$	191,637	$	678	$	(35	)	$	192,280
As of November 30, 2013
Money market funds	$	245,953	$	—	$	—		$	245,953
Corporate bonds and commercial paper	77,442		66		—			77,508
U.S. Government debt and agency securities	6,012		1		—			6,013
Term deposits	536		—		—			536
Mortgage-backed securities	200		121		—			321
	$	330,143	$	188	$	—		$	330,331

Investments Classified by Contractual Maturity Date

Fixed income securities included in short-term investments above are summarized by their contractual maturities as follows (in thousands):

	August 31, 2014		November 30, 2013
Contractual maturities:
Less than one year	$	91,166	$	36,084
One to three years	86,922		47,758
	$	178,088	$	83,842