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Intangible Assets And Goodwill (Range Of Remaining Estimated Useful Lives And Weighted-Average Amortization) (Details)
12 Months Ended
Aug. 31, 2022
License Rights [Member]  
Finite-Lived Intangible Assets [Line Items]  
Weighted Average Original Amortization Period 26 years
Acquired Content [Member]  
Finite-Lived Intangible Assets [Line Items]  
Weighted Average Original Amortization Period 24 years
Customer Lists [Member]  
Finite-Lived Intangible Assets [Line Items]  
Weighted Average Original Amortization Period 11 years
Acquired Technology [Member]  
Finite-Lived Intangible Assets [Line Items]  
Range of Remaining Estimated Useful Lives 7 years
Weighted Average Original Amortization Period 6 years
Tradename [Member]  
Finite-Lived Intangible Assets [Line Items]  
Range of Remaining Estimated Useful Lives 4 years
Weighted Average Original Amortization Period 5 years
Non-Compete Agreements And Other [Member]  
Finite-Lived Intangible Assets [Line Items]  
Weighted Average Original Amortization Period 3 years
Minimum [Member] | License Rights [Member]  
Finite-Lived Intangible Assets [Line Items]  
Range of Remaining Estimated Useful Lives 5 years
Minimum [Member] | Acquired Content [Member]  
Finite-Lived Intangible Assets [Line Items]  
Range of Remaining Estimated Useful Lives 4 years
Minimum [Member] | Customer Lists [Member]  
Finite-Lived Intangible Assets [Line Items]  
Range of Remaining Estimated Useful Lives 2 years
Minimum [Member] | Non-Compete Agreements And Other [Member]  
Finite-Lived Intangible Assets [Line Items]  
Range of Remaining Estimated Useful Lives 1 year
Maximum [Member] | License Rights [Member]  
Finite-Lived Intangible Assets [Line Items]  
Range of Remaining Estimated Useful Lives 7 years
Maximum [Member] | Acquired Content [Member]  
Finite-Lived Intangible Assets [Line Items]  
Range of Remaining Estimated Useful Lives 5 years
Maximum [Member] | Customer Lists [Member]  
Finite-Lived Intangible Assets [Line Items]  
Range of Remaining Estimated Useful Lives 4 years
Maximum [Member] | Non-Compete Agreements And Other [Member]  
Finite-Lived Intangible Assets [Line Items]  
Range of Remaining Estimated Useful Lives 5 years