Commitments And Contingencies (Tables)

12 Months Ended

May. 31, 2015

Commitments and Contingencies Disclosure [Abstract]

Aggregate of future annual payments under non cancelable operating leases for facilities and equipment

Future annual payments under non-cancelable operating leases in the aggregate, of which one includes an escalation clause, with initial remaining terms of more than one year at May 31, 2015, are summarized as follows (in thousands):

2016	$	2,192
2017	2,013
2018	1,980
2019	1,962
2020	1,749
	$	9,896