XML 59 R48.htm IDEA: XBRL DOCUMENT v3.7.0.1
Income Taxes (Narrative) (Details) - USD ($)
$ in Millions
3 Months Ended 9 Months Ended
May 31, 2017
May 31, 2016
May 31, 2017
May 31, 2016
Income Taxes [Abstract]        
Provision for income taxes 28.80% 28.10% 30.00% 28.20%
Unrecognized tax benefits affected by the resolution of tax examinations or expiring statutes of limitation $ 0.3   $ 0.3  
Year under examination     2015