Total Operating Expenses Operating Income Consolidated Operating Income Operating Income (in Dollars) Total Other Income, net Consolidated Other Income (Expense), Net Income before Income Taxes Net Income Net Income Net Income (in Dollars) Earnings Applicable to Common Stock Earnings Applicable to Common Stock TOTAL UTILITY PLANT - NET TOTAL CURRENT ASSETS TOTAL OTHER ASSETS Utility assets TOTAL ASSETS Consolidated Assets TOTAL COMMON STOCKHOLDERS’ EQUITY TOTAL CAPITALIZATION TOTAL CURRENT LIABILITIES TOTAL OTHER LIABILITIES TOTAL CAPITALIZATION AND LIABILITIES NET CASH PROVIDED BY OPERATING ACTIVITIES NET CASH USED IN INVESTING ACTIVITIES NET CASH PROVIDED BY FINANCING ACTIVITIES NET CHANGES IN CASH, CASH EQUIVALENTS AND RESTRICTED CASH CASH, CASH EQUIVALENTS AND RESTRICTED CASH AT BEGINNING OF PERIOD CASH, CASH EQUIVALENTS AND RESTRICTED CASH AT END OF PERIOD Class of Stock [Axis] Debt Instrument [Axis] Statistical Measurement [Axis] TOTAL LONG-TERM DEBT Long-term Debt Balance Balance Balance (in Shares) Balance (in Shares) Equity Components [Axis] Organization, Summary of Significant Accounting Policies and Recent Developments [Abstract] Public Utility [Axis] Total Revenue from Contracts with Customers Total Revenue Operating Revenues Consolidated Revenues Rate and Regulatory Matters [Abstract] Regulatory Asset [Axis] Regulatory Liability [Axis] Income Taxes [Abstract] Schedule of Income Tax Expense Benefit [Abstract] Total Income Tax Expense Income Taxes Consolidated Income Taxes Schedule of Deferred Income Taxes Reflect the Net Tax Effect [Abstract] Total Accumulated Deferred Income Taxes Commitments and Contingent Liabilities [Abstract] Schedule of Purchased Water Costs [Abstract] Total Costs Additional cost of purchased water Schedule of Operating Lease ROU Assets [Abstract] Current ROU Asset OTHER ASSETS: Operating Lease Right of Use Asset Schedule of Future Minimum Operating Lease Commitments [Abstract] Total Lease Payments Present Value of Lease Payments Short-Term Borrowings [Abstract] Lender Name [Axis] Capitalization [Abstract] Schedule of Long Term Debt [Abstract] Extinguishment of Debt [Axis] Schedule of Carrying Amount and Fair Value of the FMBs [Abstract] Employee Benefit Plans [Abstract] Beginning Balance Ending Balance Retirement Plan Type [Axis] Beginning Balance Ending Balance Fair value of plan assets Net Asset Recognized Net Periodic Benefit Cost Schedule of Effect of One-Percentage Point Change in Assumed Health Care Cost Trend Rates [Abstract] Totals Defined Benefit Plan, Plan Assets, Category [Axis] Fair Value Hierarchy and NAV [Axis] Shares, Balance Shares, Balance Unearned Compensation, Balance (in Dollars) Unearned Compensation, Balance (in Dollars) Business Segment Data [Abstract] Segments [Axis] Quarterly Data - Unaudited [Abstract] Operating Expenses: Operating Expenses Operations and Maintenance Operations and maintenance expense Depreciation Consolidated Depreciation Other Taxes Consolidated Other Taxes Gain on Sale of Subsidiary Other Income: Allowance for Funds Used During Construction Other Income, net Interest Charges Consolidated Interest Expense Preferred Stock Dividend Requirements Preferred Dividend Earnings per share of Common Stock: Basic (in Dollars per share) Basic EPS (in Dollars per share) Basic Earnings per Share Diluted (in Dollars per share) Diluted EPS (in Dollars per share) Diluted Earnings per Share Average Number of Common Shares Outstanding : Basic (in Shares) Net Income (in Shares) Earnings Applicable to Common Stock (in Shares) Diluted (in Shares) UTILITY PLANT: Water Production Transmission and Distribution General Construction Work in Progress Less Accumulated Depreciation CURRENT ASSETS: Cash and Cash Equivalents Accounts Receivable, net of allowance for credit losses of $2,695 and $2,137, respectively in 2024 and 2023 Accounts receivable, et of allowance for credit losses Litigation Settlement Receivable Unbilled Revenues Materials and Supplies (at average cost) Prepayments Regulatory Assets Non-utility Assets - Net Employee Benefit Plans Other CAPITALIZATION AND LIABILITIES CAPITALIZATION: Common Stock, No Par Value Retained Earnings Preferred Stock CURRENT Current Portion of Long-term Debt LIABILITIES: Notes Payable Notes Payable at Year-End Accounts Payable Litigation Settlement Payable Accrued Taxes Accrued Interest Unearned Revenues and Advanced Service Fees Other COMMITMENTS AND CONTINGENT LIABILITIES (Note 4) OTHER LIABILITIES: Advances for Construction Lease Obligations Accumulated Deferred Income Taxes Regulatory Liabilities Other CONTRIBUTIONS IN AID OF CONSTRUCTION CASH FLOWS FROM OPERATING ACTIVITIES: Net Cash Provided by Operating Activities: Depreciation and Amortization Provision for Deferred Income Taxes and Investment Tax Credits Stock Compensation Expense Changes in Assets and Liabilities: Accounts Payable Accrued Taxes Accrued Interest Employee Benefit Plans Unearned Revenue and Advanced Service Fees CASH FLOWS FROM INVESTING ACTIVITIES: Utility Plant Expenditures, Including AFUDC Proceeds from Sale of Subsidiary CASH FLOWS FROM FINANCING ACTIVITIES: Proceeds from Issuance of Long-term Debt Net Short-term Bank Borrowings Proceeds from Litigation Settlement, net Proceeds from Issuance of Common Stock Construction Advances and Contributions-Net SUPPLEMENTAL DISCLOSURE OF NON-CASH ACTIVITY: Utility Plant received as Construction Advances and Contributions Accrued Payables for Utility Plant Non-Cash Consideration for Sale of Subsidiary Litigation Settlement Receivable Litigation Settlement Payable Conversion of Preferred Stock Into Common Stock SUPPLEMENTAL DISCLOSURE OF CASH FLOWS INFORMATION: Cash Paid During the Year for: Interest Interest Capitalized Income Taxes Common Stock, No Par Value Shares Authorized Value Shares Authorized Shares Outstanding Value Shares Outstanding Cumulative Preferred Stock, No Par Value: Shares Authorized Value Shares Authorized (in Dollars) Shares Outstanding Value Shares Outstanding Preferred stock outstanding (in Shares) Convertible: TOTAL PREFERRED STOCK Nonredeemable: Long-term Debt: SUBTOTAL LONG-TERM DEBT Interest rate Percentage of interest rate Long term debt maturity period Add: Premium on Issuance of Long-term Debt Dividend Reinvestment & Common Stock Purchase Plan Dividend Reinvestment & Common Stock Purchase Plan (in Shares) Restricted Stock Award - Net - Employees Restricted Stock Award - Net - Employees (in Shares) Stock Award - Board Of Directors Stock Award - Board Of Directors (in Shares)