XML 16 R58.htm IDEA: XBRL DOCUMENT v3.20.1
Income Taxes (Narrative) (Details)
3 Months Ended 6 Months Ended
Feb. 29, 2020
Feb. 28, 2019
Feb. 29, 2020
Feb. 28, 2019
Income Taxes [Abstract]        
Provision for income taxes 17.60% 18.70% 16.30% 18.20%