Quarterly report pursuant to Section 13 or 15(d)

Income Taxes (Narrative) (Details)

v3.19.3.a.u2
Income Taxes (Narrative) (Details)
3 Months Ended 6 Months Ended
Nov. 30, 2019
Nov. 30, 2018
Nov. 30, 2019
Nov. 30, 2018
Income Taxes [Abstract]        
Effective income tax rate 23.20% 23.80% 23.30% 24.10%