Share-Based Compensation (Tables)

12 Months Ended

May 31, 2013

Transactions involving our stock options during the years ended May 31, 2013, 2012 and 2011 are summarized below:


	Year Ended May 31, 2013					Year Ended May 31, 2012					Year Ended May 31, 2011
	No. of Options			Weighted Average Exercise Price		No. of Options			Weighted Average Exercise Price		No. of Options			Weighted Average Exercise Price
	(in thousands)					(in thousands)					(in thousands)
Shares under option, beginning of year		1,562		$	18.95		1,856		$	17.81		2,213		$	16.50
Changes during the year:
Granted		—		$	—		—		$	—		—		$	—
Exercised		(509	)	$	16.25		(278	)	$	10.77		(329	)	$	8.08
Cancelled		(1	)	$	30.33		(2	)	$	30.33		(13	)	$	30.33
Expired		—		$	—		(14	)	$	30.33		(15	)	$	26.56

Shares under option, end of year		1,052		$	20.24		1,562		$	18.95		1,856		$	17.81
Exercisable at end of year		1,052		$	20.24		1,562		$	18.95		1,711		$	16.75

For total options outstanding at May 31, 2013, the range of exercise prices and remaining contractual lives are as follows:


Range of Prices	No. of Options		Weighted Average Exercise Price		Weighted Average Remaining Life
	(in thousands)				(in years)
$6.42 to $9.62		122	$	8.92		1.9
$9.63 to $12.82		157	$	11.10		2.7
$12.83 to $16.03		308	$	14.56		3.1
$16.04 to $32.05		465	$	30.05		4.4

		1,052	$	20.24		3.5

Transactions involving our performance awards during the years ended May 31, 2013, 2012 and 2011 are summarized below:


	Year Ended May 31, 2013					Year Ended May 31, 2012					Year Ended May 31, 2011
	No. of Performance Awards			Weighted Average Fair Value		No. of Performance Awards			Weighted Average Fair Value		No. of Performance Awards			Weighted Average Fair Value
	(in thousands)					(in thousands)					(in thousands)
Performance awards, beginning of year		64		$	21.86		61		$	20.33		51		$	20.84
Changes during the year:
Granted		19		$	32.89		24		$	25.16		25		$	20.04
Vested and settled		(26	)	$	22.04		(21	)	$	21.14		(15	)	$	21.61
Cancelled		—		$	—		—		$	—		—		$	—

Performance awards, end of year		57		$	25.47		64		$	21.86		61		$	20.33

Transactions involving our stock units and director stock grants during the years ended May 31, 2013, 2012 and 2011 are summarized below:


	Year Ended May 31, 2013					Year Ended May 31, 2012					Year Ended May 31, 2011
	No. of Stock Units			Weighted Average Fair Value		No. of Stock Units			Weighted Average Fair Value		No. of Stock Units			Weighted Average Fair Value
	(in thousands)					(in thousands)					(in thousands)
Stock and stock units, beginning of year		342		$	21.73		310		$	19.80		247		$	20.53
Changes during the year:
Granted		141		$	32.81		159		$	24.78		167		$	18.99
Vested and settled		(143	)	$	22.53		(120	)	$	20.81		(93	)	$	20.20
Cancelled		(11	)	$	23.58		(7	)	$	21.27		(11	)	$	20.50

Stock and stock units, end of year		329		$	26.07		342		$	21.73		310		$	19.80