Basis of Presentation (Tables)

9 Months Ended

Feb. 28, 2013

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Schedule of inventory

Inventory is comprised of the following amounts: 

(In thousands)	February 28, 2013		May 31, 2012
Raw materials	$	19,747	$	19,138
Work in process	16,782		13,052
Finished goods	210,428		219,015
	$	246,957	$	251,205