Basis of Presentation (Tables)

6 Months Ended

Nov. 30, 2015

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Schedule of Inventory

Inventory is comprised of the following amounts at: 

(In thousands)	November 30, 2015		May 31, 2015
Raw materials	$	18,222	$	16,935
Work in process	18,344		17,079
Finished goods	214,911		192,197
	$	251,477	$	226,211