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Note 16 - Share-Based Compensation (Detail) - Share-Based Compensation (USD $) In Thousands, unless otherwise specified	3 Months Ended	9 Months Ended	12 Months Ended
	Aug. 19, 2011	May 31, 2012	May 31, 2011	May 31, 2010
Share-based compensation	$ 16,233	$ 753	$ 6,941	$ 5,946
Tax benefit	(5,682)	(264)	(2,147)	(1,803)
Share-based compensation, net	$ 10,551	$ 489	$ 4,794	$ 4,143

Represents the expense recognized during the period arising from equity-based compensation arrangements (for example, shares of stock, unit, stock options or other equity instruments) with employees, directors and certain consultants qualifying for treatment as employees.

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