Quarterly report pursuant to Section 13 or 15(d)

Consolidated Statements of Stockholders' Equity (Parenthetical)

v3.19.3
Consolidated Statements of Stockholders' Equity (Parenthetical) - $ / shares
3 Months Ended
Aug. 31, 2019
Aug. 31, 2018
Consolidated Statements of Stockholders' Equity [Abstract]    
Cash dividends per share $ 0.62 $ 0.56