Stock Benefit Plans and Stock-Based Compensation (Tables)

12 Months Ended

Nov. 30, 2013

The summary of stock option activity in fiscal year 2013 is presented below (in thousands, except per share data):



Stock Options	Number of Shares Underlying Options		Weighted- Average Exercise Price		Weighted- Average Remaining Contractual Term (year)	Aggregate Intrinsic Value
Outstanding at November 30, 2012	12,199		$	10.45
Granted	24		22.61
Exercised	(3,473	)	7.40
Forfeited or expired	(424	)	22.10
Outstanding at November 30, 2013	8,326		$	11.60	1.84	$	111,001
Vested and expected to vest at November 30, 2013	8,298		$	11.55	1.83	$	110,978
Exercisable at November 30, 2013	7,644		$	10.31	1.60	$	109,990

Summary Of Nonvested Stock Awards

A summary of the status for nonvested stock awards as of November 30, 2013, and activities during fiscal year 2013 is presented as follows (in thousands, except per share data):



Nonvested Stock Awards	Restricted Stock		Restricted Stock Units		Performance-based Restricted Stock Units		Total Number of Shares Underlying Stock Awards		Weighted-Average Grant Date Fair Value
Nonvested at November 30, 2012	3,127		1,523		4,770		9,420		$	16.51
Granted	2,219		591		382		3,192		22.27
Vested	(1,161	)	(622	)	(2,060	)	(3,843	)	18.89
Forfeited	(494	)	(137	)	(309	)	(940	)	19.03
Nonvested at November 30, 2013	3,691		1,355		2,783		7,829		16.91

Summary Of Assumptions For Estimating Fair Value Of Stock-Based Awards

The following table summarizes the assumptions used to value options granted in the respective periods:



	Year Ended November 30,
	2013			2012			2011
Stock Option grants:
Expected term of stock options (years)	4.8			4.8			4.8 – 5.1
Risk-free interest rate	0.8 - 1.7%			0.7 - 1.5%			0.9 - 2.1%
Volatility	40 – 43%			42 – 47%			42 – 47%
Weighted-average grant-date fair value (per share)	$	8.18		$	9.91		$	10.70
Employee stock purchase plans:
Expected term of ESPP (years)	0.5			0.5			0.5
Risk-free interest rate	0.1		%	0.1		%	0.2		%
Volatility	36 – 43%			43 – 52%			38 – 39%
Weighted-average grant-date fair value (per share)	$	6.63		$	7.62		$	6.56