FAIR VALUE MEASUREMENTS AND DERIVATIVE INSTRUMENTS (Tables)

6 Months Ended

May 31, 2013

Fair Value Measurements And Derivative Instruments [Abstract]

Fair Value Hierarchy of Cash Equivalents, Marketable Securities and Foreign Currency Contracts

The fair value hierarchy of our cash equivalents, short-term investments and foreign currency contracts is as follows (in thousands):

			Fair Value Measurements at Reporting Date using
Description	Total Fair Value		Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant other Observable Inputs (Level 2)
As of May 31, 2013
Assets:
Money market funds	$	335,999	$	335,999	$	—
Corporate bonds and commercial paper	53,929		—		53,929
U.S. Government debt and agency securities	9,578		—		9,578
Term deposits	558		—		558
Mortgage-backed securities	278		—		278
Foreign currency forward contracts	2,508		—		2,508
Liabilities:
Foreign currency forward contracts	$	175	$	—	$	175
As of November 30, 2012
Assets:
Money market funds	$	376,480	$	376,480	$	—
Corporate bonds and commercial paper	24,558		—		24,558
U.S. Government debt and agency securities	9,645		—		9,645
Term deposits	595		—		595
Mortgage-backed securities	208		—		208
Foreign currency forward contracts	101		—		101
Liabilities:
Foreign currency forward contracts	$	130	$	—	$	130

Forward Contracts Outstanding

We had the following forward contracts outstanding as of May 31, 2013 (in thousands):

	Notional Value Local  Currency	Notional Value USD		Fair Value Gain (Loss) USD
Forward contracts sold:
Australian dollar	8,300	$	8,406	$	460
Brazilian real	1,200	593		34
British pound	7,800	11,980		137
Euro	55,700	73,463		1,280
Japanese yen	461,000	4,638		59
Korean won	570,000	518		14
Polish zloty	1,700	537		21
Singapore dollar	1,000	811		22
South African rand	37,000	4,082		409
New Taiwan dollar	31,000	1,048		12
Forward contracts bought:
Australian dollar	2,000	1,920		(5		)
Brazilian real	1,200	562		(2		)
British pound	2,000	3,036		—
Euro	15,000	19,475		(37		)
Hong Kong dollar	10,000	1,289		—
Korean won	570,000	505		(1		)
Singapore dollar	2,000	1,581		(2		)
Swiss franc	1,800	1,908		(30		)
				$	2,371

	Notional Value Local  Currency	Notional Value EURO		Fair Value Gain (Loss) USD
Forward contracts bought:
British pound	1,700	€	2,007	$	(25	)
Swedish krona	28,000	3,276		(34		)
United States dollar	1,300	985		21
				$	(38	)

Foreign Currency Forward Contracts Not Designated as Hedging Instruments

	Derivatives not Designated as Hedging Instruments
	May 31, 2013		November 30, 2012
Foreign currency forward contracts, fair value included in:
Other Current Assets	$	2,508	$	101
Accrued Liabilities	175		130

Gain or (Loss) Recognized in Income on Derivatives

		Amount of Gain or (Loss) Recognized In Income on Derivative
		Three Months Ended May 31,						Six Months Ended May 31,
Derivatives not Designated as Hedging Instruments	Location	2013			2012			2013			2012
Foreign Currency Contracts	Other income/(exp.)	$	(2,909	)	$	(438	)	$	(86	)	$	(1,795	)