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Statement - CONDENSED CONSOLIDATED STATEMENTS OF COMMON STOCKHOLDERS' EQUITY (Unaudited) link:presentationLink link:calculationLink link:definitionLink 00090 - Statement - CONDENSED CONSOLIDATED STATEMENTS OF COMMON STOCKHOLDERS' EQUITY (Unaudited) (Parenthetical) link:presentationLink link:calculationLink link:definitionLink 00100 - Disclosure - Basis of Presentation and Recent Developments link:presentationLink link:calculationLink link:definitionLink 00110 - Disclosure - Rate and Regulatory Matters link:presentationLink link:calculationLink link:definitionLink 00120 - Disclosure - Capitalization link:presentationLink link:calculationLink link:definitionLink 00130 - Disclosure - Earnings Per Share link:presentationLink link:calculationLink link:definitionLink 00140 - Disclosure - Business Segment Data link:presentationLink link:calculationLink link:definitionLink 00150 - Disclosure - Short-term Borrowings link:presentationLink link:calculationLink link:definitionLink 00160 - Disclosure - 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Disclosure - Short-term Borrowings (Narrative) (Details) link:presentationLink link:calculationLink link:definitionLink 00340 - Disclosure - Short-term Borrowings (Schedule of Line of Credit) (Details) link:presentationLink link:calculationLink link:definitionLink 00350 - Disclosure - Short-term Borrowings (Schedule of Weighted Average Daily Amounts of Borrowings Outstanding) (Details) link:presentationLink link:calculationLink link:definitionLink 00360 - Disclosure - Commitments and Contingent Liabilities (Narrative) (Details) link:presentationLink link:calculationLink link:definitionLink 00370 - Disclosure - Commitments and Contingent Liabilities (Schedule of Purchased Water Costs) (Details) link:presentationLink link:calculationLink link:definitionLink 00380 - Disclosure - Commitments and Contingent Liabilities (Schedule of Operating Lease ROU Assets and Lease Liabilities) (Details) link:presentationLink link:calculationLink link:definitionLink 00390 - Disclosure - Commitments and Contingent Liabilities (Schedule of Future Minimum Operating Lease) (Details) link:presentationLink link:calculationLink link:definitionLink 00400 - Disclosure - Employee Benefit Plans (Narrative) (Details) link:presentationLink link:calculationLink link:definitionLink 00410 - Disclosure - Employee Benefit Plans (Schedule of Benefits Plans) (Details) link:presentationLink link:calculationLink link:definitionLink 00420 - Disclosure - Revenue Recognition from Contracts with Customers (Schedule of Operating Revenue) (Details) link:presentationLink link:calculationLink link:definitionLink 00430 - Disclosure - Income Taxes (Details) link:presentationLink link:calculationLink link:definitionLink