Basis Of Presentation (Narrative) (Details) $ in Millions	3 Months Ended
	Nov. 30, 2018 country item	Sep. 01, 2018 USD ($)
Business Acquisition [Line Items]
Number of areas of expertise | item	7
Number of important distinguishing characteristics from competitors | item	3
Accounting Standards Update 2014-09 [Member]
Business Acquisition [Line Items]
Cumulative effect on retained earnings | $		$ 4.1
Cumulative effect on retained earnings, net of tax | $		$ 3.1
Minimum [Member]
Business Acquisition [Line Items]
Number of countries in which entity operates | country	150