Basis of Presentation (Tables)

9 Months Ended

Feb. 28, 2017

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Schedule of Inventory

Inventory is comprised of the following amounts at: 

(In thousands)	February 28, 2017		May 31, 2016
Raw materials	$	12,807	$	17,794
Work in process	17,533		14,731
Finished goods	241,841		216,837
	$	272,181	$	249,362