XML 45 R76.htm IDEA: XBRL DOCUMENT

Restricted Common Shares Granted (Detail) (Service-Based Restricted Common Shares, USD $)	12 Months Ended
	May 31, 2012	May 31, 2011	May 31, 2010
Service-Based Restricted Common Shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Granted	514,974	26,100	21,750
Weighted average grant date fair value, per share	$ 14.57	$ 15.33	$ 13.90
Pre-tax stock-based compensation	$ 7,501,000	$ 400,000	$ 302,000

The weighted average fair value at grant date for nonvested equity-based awards issued during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

+ References+ Details