Summary of Significant Accounting Policies - Schedule of Useful Lives of Property, Plant and Equipment (Details)	12 Months Ended
	Aug. 31, 2019
Buildings | Minimum
Property, Plant and Equipment [Line Items]
Estimated useful life	30 years
Buildings | Maximum
Property, Plant and Equipment [Line Items]
Estimated useful life	40 years
Building components | Minimum
Property, Plant and Equipment [Line Items]
Estimated useful life	10 years
Building components | Maximum
Property, Plant and Equipment [Line Items]
Estimated useful life	20 years
Leasehold improvements
Property, Plant and Equipment [Line Items]
Estimated useful lives	Shorter of useful life or term of lease
Machinery and equipment | Minimum
Property, Plant and Equipment [Line Items]
Estimated useful life	3 years
Machinery and equipment | Maximum
Property, Plant and Equipment [Line Items]
Estimated useful life	10 years
Motor vehicles | Minimum
Property, Plant and Equipment [Line Items]
Estimated useful life	3 years
Motor vehicles | Maximum
Property, Plant and Equipment [Line Items]
Estimated useful life	5 years