0000001 - Document - Cover Page link:presentationLink link:calculationLink link:definitionLink 0000002 - Document - Audit Information link:presentationLink link:calculationLink link:definitionLink 9952151 - Statement - CONSOLIDATED BALANCE SHEETS link:presentationLink link:calculationLink link:definitionLink 9952152 - Statement - CONSOLIDATED BALANCE SHEETS (Parenthetical) link:presentationLink link:calculationLink link:definitionLink 9952153 - Statement - CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME link:presentationLink link:calculationLink link:definitionLink 9952154 - Statement - CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (Parenthetical) link:presentationLink link:calculationLink link:definitionLink 9952155 - Statement - CONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDERS’ EQUITY link:presentationLink link:calculationLink link:definitionLink 9952156 - Statement - CONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDERS’ EQUITY (Parenthetical) link:presentationLink link:calculationLink link:definitionLink 9952157 - Statement - CONSOLIDATED STATEMENTS OF CASH FLOWS link:presentationLink link:calculationLink link:definitionLink 9952158 - Disclosure - Organization and Operations link:presentationLink link:calculationLink link:definitionLink 9952159 - Disclosure - Summary of Significant Accounting Policies link:presentationLink link:calculationLink link:definitionLink 9952160 - Disclosure - Regulatory Matters link:presentationLink link:calculationLink link:definitionLink 9952161 - Disclosure - Capitalization link:presentationLink link:calculationLink link:definitionLink 9952162 - Disclosure - Lines of Credit link:presentationLink link:calculationLink link:definitionLink 9952163 - Disclosure - Long-Term Debt link:presentationLink link:calculationLink link:definitionLink 9952164 - Disclosure - Income Taxes link:presentationLink link:calculationLink link:definitionLink 9952165 - Disclosure - Intangible Assets link:presentationLink link:calculationLink link:definitionLink 9952166 - Disclosure - Commitments link:presentationLink link:calculationLink link:definitionLink 9952167 - Disclosure - Contingencies link:presentationLink link:calculationLink link:definitionLink 9952168 - Disclosure - Benefit Plans link:presentationLink link:calculationLink link:definitionLink 9952169 - Disclosure - Equity Plans link:presentationLink link:calculationLink link:definitionLink 9952170 - Disclosure - Segment Reporting link:presentationLink link:calculationLink link:definitionLink 9952171 - Disclosure - Acquisitions link:presentationLink link:calculationLink link:definitionLink 9952172 - Disclosure - Subsequent Event link:presentationLink link:calculationLink link:definitionLink 9952173 - Disclosure - FINANCIAL STATEMENT SCHEDULE link:presentationLink link:calculationLink link:definitionLink 9952174 - Disclosure - VALUATION AND QUALIFYING ACCOUNTS AND RESERVES link:presentationLink link:calculationLink link:definitionLink 9955511 - Disclosure - Summary of Significant Accounting Policies (Policies) link:presentationLink link:calculationLink link:definitionLink 9955512 - Disclosure - Summary of Significant Accounting Policies (Tables) link:presentationLink link:calculationLink link:definitionLink 9955513 - Disclosure - Regulatory Matters (Tables) link:presentationLink link:calculationLink link:definitionLink 9955514 - Disclosure - Lines of Credit (Tables) link:presentationLink link:calculationLink link:definitionLink 9955515 - Disclosure - Long-Term Debt (Tables) link:presentationLink link:calculationLink link:definitionLink 9955516 - Disclosure - Income Taxes (Tables) link:presentationLink link:calculationLink link:definitionLink 9955517 - Disclosure - Intangible Assets (Tables) link:presentationLink link:calculationLink link:definitionLink 9955518 - Disclosure - Benefit Plans (Tables) link:presentationLink link:calculationLink link:definitionLink 9955519 - Disclosure - Equity Plans (Tables) link:presentationLink link:calculationLink link:definitionLink 9955520 - Disclosure - Segment Reporting (Tables) link:presentationLink link:calculationLink link:definitionLink 9955521 - Disclosure - FINANCIAL STATEMENT SCHEDULE (Tables) link:presentationLink link:calculationLink link:definitionLink 9955522 - Disclosure - Organization and Operations (Details) link:presentationLink link:calculationLink link:definitionLink 9955523 - Disclosure - Summary of Significant Accounting Policies - Property, Plant and Equipment and Intangible Assets (Details) link:presentationLink link:calculationLink link:definitionLink 9955524 - Disclosure - Summary of Significant Accounting Policies - Nonutility Properties and Real Estate Investments (Details) link:presentationLink link:calculationLink link:definitionLink 9955525 - Disclosure - Summary of Significant Accounting Policies - Impairments of Long-Lived Assets and Goodwill (Details) link:presentationLink link:calculationLink link:definitionLink 9955526 - Disclosure - Summary of Significant Accounting Policies - Accounts Receivable (Details) link:presentationLink link:calculationLink link:definitionLink 9955527 - Disclosure - Summary of Significant Accounting Policies - Financial Instruments and Investments (Details) link:presentationLink link:calculationLink link:definitionLink 9955528 - Disclosure - Summary of Significant Accounting Policies - Advances for Construction and Contributions in Aid of Construction (Details) link:presentationLink link:calculationLink link:definitionLink 9955529 - Disclosure - Summary of Significant Accounting Policies - Advances for Construction and Contributions in Aid of Construction, Estimated Refunds (Details) link:presentationLink link:calculationLink link:definitionLink 9955530 - Disclosure - Summary of Significant Accounting Policies - Asset Retirement Obligation (Details) link:presentationLink link:calculationLink link:definitionLink 9955531 - Disclosure - Summary of Significant Accounting Policies - Revenue (Details) link:presentationLink link:calculationLink link:definitionLink 9955532 - Disclosure - Summary of Significant Accounting Policies - Earnings per Share (Details) link:presentationLink link:calculationLink link:definitionLink 9955533 - Disclosure - Summary of Significant Accounting Policies - Related-Party Transaction (Details) link:presentationLink link:calculationLink link:definitionLink 9955534 - Disclosure - Regulatory Matters - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 9955535 - Disclosure - Regulatory Matters - Schedule of Regulatory Assets, Net (Details) link:presentationLink link:calculationLink link:definitionLink 9955536 - Disclosure - Capitalization (Details) link:presentationLink link:calculationLink link:definitionLink 9955537 - Disclosure - Lines of Credit - Schedule of Lines of Credit (Details) link:presentationLink link:calculationLink link:definitionLink 9955538 - Disclosure - Lines of Credit - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 9955539 - Disclosure - Long-Term Debt - Schedule of Long-term Debt Instruments (Details) link:presentationLink link:calculationLink link:definitionLink 9955540 - Disclosure - Long-Term Debt - Schedule of Maturities of Long-term Debt (Details) link:presentationLink link:calculationLink link:definitionLink 9955541 - Disclosure - Long-Term Debt - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 9955542 - Disclosure - Income Taxes - Schedule of Components of Income Tax Expense (Details) link:presentationLink link:calculationLink link:definitionLink 9955543 - Disclosure - Income Taxes - Schedule of Federal Statutory Rate Reconciliation (Details) link:presentationLink link:calculationLink link:definitionLink 9955544 - Disclosure - Income Taxes - Schedule of Components of Deferred Tax Assets and Liabilities (Details) link:presentationLink link:calculationLink link:definitionLink 9955545 - Disclosure - Income Taxes - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 9955546 - Disclosure - Income Taxes - Schedule of Unrecognized Tax Benefits (Details) link:presentationLink link:calculationLink link:definitionLink 9955547 - Disclosure - Income Taxes - Schedule of Income Taxes Paid (Net of Refunds) (Details) link:presentationLink link:calculationLink link:definitionLink 9955548 - Disclosure - Intangible Assets - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 9955549 - Disclosure - Intangible Assets - Schedule of Finite-Lived Intangible Assets (Details) link:presentationLink link:calculationLink link:definitionLink 9955550 - Disclosure - Commitments (Details) link:presentationLink link:calculationLink link:definitionLink 9955551 - Disclosure - Contingencies (Details) link:presentationLink link:calculationLink link:definitionLink 9955552 - Disclosure - Benefit Plans - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 9955553 - Disclosure - Benefit Plans - Schedule of Fair Value of Plan Assets (Details) link:presentationLink link:calculationLink link:definitionLink 9955554 - Disclosure - Benefit Plans - Schedule of Actuarial Calculation Assumptions (Details) link:presentationLink link:calculationLink link:definitionLink 9955555 - Disclosure - Benefit Plans - Schedule of Net Periodic Benefit Cost (Details) link:presentationLink link:calculationLink link:definitionLink 9955556 - Disclosure - Benefit Plans - Schedule of Reconciliation of Funded Status (Details) link:presentationLink link:calculationLink link:definitionLink 9955557 - Disclosure - Benefit Plans - Schedule of Amounts Recognized in Balance Sheet (Details) link:presentationLink link:calculationLink link:definitionLink 9955558 - Disclosure - Benefit Plans - Schedule of Accumulated and Projected Benefit Obligations (Details) link:presentationLink link:calculationLink link:definitionLink 9955559 - Disclosure - Benefit Plans - Schedule of Plan Assets (Details) link:presentationLink link:calculationLink link:definitionLink 9955560 - Disclosure - Benefit Plans - Schedule of Benefits Expected to be Paid in Next Five Years (Details) link:presentationLink link:calculationLink link:definitionLink 9955561 - Disclosure - Equity Plans - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 9955562 - Disclosure - Equity Plans - Schedule of Compensation Cost for Share-based Payment Arrangements, Allocation of Share-based Compensation Costs by Plan (Details) link:presentationLink link:calculationLink link:definitionLink 9955563 - Disclosure - Equity Plans - Schedule of Restricted Stock and Deferred Restricted Stock Activity (Details) link:presentationLink link:calculationLink link:definitionLink 9955564 - Disclosure - Segment Reporting - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 9955565 - Disclosure - Segment Reporting - Reportable Segment Information (Details) link:presentationLink link:calculationLink link:definitionLink 9955566 - Disclosure - Acquisitions (Details) link:presentationLink link:calculationLink link:definitionLink 9955567 - Disclosure - FINANCIAL STATEMENT SCHEDULE - Condensed Balance Sheets (Details) link:presentationLink link:calculationLink link:definitionLink 9955568 - Disclosure - FINANCIAL STATEMENT SCHEDULE - Condensed Statements of Comprehensive Income (Details) link:presentationLink link:calculationLink link:definitionLink 9955569 - Disclosure - FINANCIAL STATEMENT SCHEDULE - Condensed Statements of Cash Flows (Details) link:presentationLink link:calculationLink link:definitionLink 9955570 - Disclosure - FINANCIAL STATEMENT SCHEDULE - Schedule of Principal Payments on Long-Term Debt (Details) link:presentationLink link:calculationLink link:definitionLink 9955571 - Disclosure - FINANCIAL STATEMENT SCHEDULE - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 9955572 - Disclosure - VALUATION AND QUALIFYING ACCOUNTS AND RESERVES (Details) link:presentationLink link:calculationLink link:definitionLink