Intangible Assets And Goodwill (Range Of Remaining Estimated Useful Lives And Weighted-Average Amortization) (Details)	12 Months Ended
	Aug. 31, 2014
License Rights [Member]
Finite-Lived Intangible Assets [Line Items]
Range of Remaining Estimated Useful Lives	12 years
Weighted Average Original Amortization Period	30 years
Curriculum [Member]
Finite-Lived Intangible Assets [Line Items]
Weighted Average Original Amortization Period	26 years
Customer Lists [Member]
Finite-Lived Intangible Assets [Line Items]
Weighted Average Original Amortization Period	14 years
Internally Developed Software [Member]
Finite-Lived Intangible Assets [Line Items]
Range of Remaining Estimated Useful Lives	2 years
Weighted Average Original Amortization Period	3 years
Trade Names [Member]
Finite-Lived Intangible Assets [Line Items]
Weighted Average Original Amortization Period	5 years
Minimum [Member] | Curriculum [Member]
Finite-Lived Intangible Assets [Line Items]
Range of Remaining Estimated Useful Lives	5 years
Minimum [Member] | Customer Lists [Member]
Finite-Lived Intangible Assets [Line Items]
Range of Remaining Estimated Useful Lives	3 years
Minimum [Member] | Trade Names [Member]
Finite-Lived Intangible Assets [Line Items]
Range of Remaining Estimated Useful Lives	3 years
Maximum [Member] | Curriculum [Member]
Finite-Lived Intangible Assets [Line Items]
Range of Remaining Estimated Useful Lives	12 years
Maximum [Member] | Customer Lists [Member]
Finite-Lived Intangible Assets [Line Items]
Range of Remaining Estimated Useful Lives	5 years
Maximum [Member] | Trade Names [Member]
Finite-Lived Intangible Assets [Line Items]
Range of Remaining Estimated Useful Lives	5 years