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SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES, Capitalized Costs of Water and Wastewater Systems and Depreciation and Depletion Charges (Details)	12 Months Ended
	Aug. 31, 2021
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Capitalized Costs of Water and Wastewater Systems and Depletion and Depreciation of Water Assets [Abstract]
Estimated useful lives	30 years

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Useful life of long lived, physical assets used in the normal conduct of business and not intended for resale, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Examples include, but not limited to, land, buildings, machinery and equipment, office equipment, furniture and fixtures, and computer equipment.

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