Fair Value Measurements and Derivative Instruments (Tables)

12 Months Ended

Nov. 30, 2013

Fair Value Measurements And Derivative Instruments [Abstract]

Fair Value Of Cash Equivalents, Marketable Securities And Foreign Currency Contracts

Fair value hierarchy of our cash equivalents, short-term investments and foreign currency contracts at fair value (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 November 30, 2013
Assets:
Money market funds	$	245,953	$	245,953	$	—
Corporate bonds and commercial papers	77,508		—		77,508
U.S. government and agency debt securities	6,013		—		6,013
Term deposits	536		—		536
Mortgage-backed securities	321		—		321
Foreign currency forward contracts	625		—		625
Liabilities:
Foreign currency forward contracts	$	547	$	—	$	547
As of November 30, 2012
Assets:
Money market funds	$	376,480	$	376,480	$	—
Corporate bonds and commercial papers	24,558		—		24,558
U.S. government and agency debt 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

Foreign Currency Forward Contracts

As of November 30, 2013, we had the following forward contracts outstanding (in thousands):

	Notional Value Local Currency	Notional Value USD		Fair Value Gain (Loss) USD
Forward contracts sold:
Australian dollar	4,800	$	4,368	120
British pound	8,700	14,238		(270		)
Canadian dollar	500	471		6
Euro	30,000	40,764		86
Japanese yen	465,000	4,540		263
Polish zloty	1,400	452		7
Swedish krona	—	—		(34		)
Swiss franc	1,000	1,103		(11		)
New Taiwan dollar	31,000	1,047		—
Forward contracts bought:
Brazilian real	1,800	771		(45		)
Indian rupee	55,300	885		(10		)
South African rand	4,900	481		(8		)
South Korean won	306,000	289		—
				$	104

	Notional Value Local Currency	Notional Value Euro	Fair Value Gain (Loss) USD
Forward contracts bought:
United States dollar	10,500	7,728	$	(26	)
			$	(26	)

Foreign Currency Forward Contracts Not Designated As Hedging Instruments

	Derivatives not Designated as Hedging Instruments
	2013		2012
Foreign currency forward contracts, fair value included in:
Other Current Assets	$	625	$	101
Accrued Liabilities	547		130

Gain Or (Loss) Recognized In Income On Derivatives Not Designated As Hedging Instruments

		Amount of Gain or (Loss) Recognized In Income on Derivative Year Ended November 30,
Derivatives not Designated as Hedging Instruments	Location	2013		2012
Foreign Currency Contracts	Other income/(expense)	$	1,587	$	2,961