Quarterly report pursuant to Section 13 or 15(d)

Commitments and Contingencies (Details)

v3.5.0.2
Commitments and Contingencies (Details) - USD ($)
$ in Millions
Aug. 31, 2016
May 31, 2016
Commitments and Contingencies [Abstract]    
Commitments to purchase capital assets $ 7.6 $ 6.8