Basis of Presentation (Tables)

3 Months Ended

Aug. 31, 2016

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Schedule of Inventory

Inventory is comprised of the following amounts at: 

(In thousands)	August 31, 2016		May 31, 2016
Raw materials	$	13,059	$	17,794
Work in process	17,537		14,731
Finished goods	231,560		216,837
	$	262,156	$	249,362