XML 92 R78.htm IDEA: XBRL DOCUMENT v3.19.2
Capital Stock and Stock-Based Awards (Details) - Schedule of employee stock purchase plan activity - Employee Stock Purchase Plan [Member] - $ / shares
12 Months Ended
May 31, 2019
May 31, 2018
May 31, 2017
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Shares issued 48,000 50,516 42,799
Weighted average purchase price per share (in Dollars per share) $ 36.25 $ 33.74 $ 35.58