PRESENTATION OF INTERIM INFORMATION, Capitalized Costs of Water and Wastewater Systems and Depletion and Depreciation of Water Assets (Details)	9 Months Ended
May 31, 2020
Maximum [Member]
Capitalized Costs of Water and Wastewater Systems and Depletion and Depreciation of Water Assets [Abstract]
Estimated useful lives	30 years

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.

No definition available.

Name:	us-gaap_PropertyPlantAndEquipmentUsefulLife
Namespace Prefix:	us-gaap_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration