Acquisitions (Finite-Lived And Indefinite-Lived Intangible Assets Acquired In Business Acquisition) (Details) $ in Thousands	12 Months Ended
	Aug. 31, 2016 USD ($)
Acquired Finite And Indefinite-Lived Intangible Assets [Line Items]
Total intangible assets	$ 24,490
Weighted average useful life in years	11 years 6 months
Customer Relationships [Member]
Acquired Finite And Indefinite-Lived Intangible Assets [Line Items]
Fair value of identifiable asset	$ 11,820
Weighted average useful life in years	10 years 10 months 24 days
Developed Technology [Member]
Acquired Finite And Indefinite-Lived Intangible Assets [Line Items]
Fair value of identifiable asset	$ 4,420
Weighted average useful life in years	14 years 8 months 12 days
Non-compete Agreements [Member]
Acquired Finite And Indefinite-Lived Intangible Assets [Line Items]
Fair value of identifiable asset	$ 430
Weighted average useful life in years	4 years 6 months
Backlog [Member]
Acquired Finite And Indefinite-Lived Intangible Assets [Line Items]
Fair value of identifiable asset	$ 390
Weighted average useful life in years	4 months 24 days
Tradenames [Member]
Acquired Finite And Indefinite-Lived Intangible Assets [Line Items]
Fair value of identifiable asset	$ 7,430