Summary of Significant Accounting Policies - Intangible Assets (Details)	12 Months Ended
	Aug. 31, 2019
Patents and trademarks | Minimum
Finite Lived Intangible Assets [Line Items]
Estimated useful lives	5 years
Patents and trademarks | Maximum
Finite Lived Intangible Assets [Line Items]
Estimated useful lives	25 years
Acquired technology
Finite Lived Intangible Assets [Line Items]
Estimated useful lives	5 years