SHARE-BASED COMPENSATION (Tables)

6 Months Ended

Nov. 30, 2012

Transactions involving stock options

Transactions involving our stock options during the six months ended November 30, 2012 and 2011 are summarized below:

	Six Months Ended November 30, 2012					Six Months Ended November 30, 2011
	(unaudited)					(unaudited)
	No. of Options			Weighted Average Exercise  Price		No. of Options			Weighted Average Exercise Price
	(in thousands)					(in thousands)
Shares under option, beginning of period		1,562		$	18.95		1,856		$	17.81
Changes during the period:
Granted		—		$	—		—		$	—
Exercised		(258	)	$	13.17		(89	)	$	7.53
Cancelled		—		$	—		(5	)	$	27.21
Expired		—		$	—		(9	)	$	30.33
Shares under option, end of period		1,304		$	20.09		1,753		$	18.26
Exercisable at end of period		1,304		$	20.09		1,742		$	18.18

Options outstanding, range of exercise prices and remaining contractual lives

For total options outstanding at November 30, 2012, the range of exercise prices and remaining contractual lives are as follows (unaudited):

Range of Prices	No. of Options		Weighted Average Exercise Price		Weighted Average Remaining Life
	(in thousands)				(in years)
$0.00 to $3.21		—	$	—		—
$3.22 to $6.41		2	$	4.13		0.6
$6.42 to $9.62		207	$	8.62		2.2
$9.63 to $12.82		157	$	11.10		3.2
$12.83 to $16.03		363	$	14.69		3.6
$16.04 to $32.05		575	$	30.14		4.9
		1,304	$	20.09		3.9

Transactions involving Stock and Stock units

Transactions involving our stock units and director stock grants during the six months ended November 30, 2012 and 2011 are summarized below:

	Six Months Ended November 30, 2012					Six Months Ended November 30, 2011
	(unaudited)					(unaudited)
	No. of  Stock Units			Weighted Average Fair Value		No. of  Stock Units			Weighted Average Fair Value
	(in thousands)					(in thousands)
Stock and stock units, beginning of period		342		$	21.73		310		$	19.80
Changes during the period:
Granted		141		$	32.81		140		$	25.16
Vested and settled		(142	)	$	22.54		(100	)	$	20.57
Cancelled		(8	)	$	21.84		(3	)	$	20.96
Stock and stock units, end of period		333		$	26.07		347		$	21.73

Transactions involving performance awards

Transactions involving our performance awards during the six months ended November 30, 2012 and 2011 are summarized below:

	Six Months Ended November 30, 2012					Six Months Ended November 30, 2011
	(unaudited)					(unaudited)
	No. of Performance Awards			Weighted Average Fair  Value		No.  of Performance Awards			Weighted Average Fair Value
	(in thousands)					(in thousands)
Performance awards, beginning of period		65		$	21.86		61		$	20.33
Changes during the period:
Granted		19		$	32.89		24		$	25.16
Vested and settled		(27	)	$	22.04		(20	)	$	21.14
Cancelled		—		$	—		—		$	—
Performance awards, end of period		57		$	25.45		65		$	21.86