0001001 - Document - Document and Entity Information link:presentationLink link:calculationLink link:definitionLink 0002002 - Document - Audit Information link:presentationLink link:calculationLink link:definitionLink 1001003 - Statement - Consolidated Balance Sheets link:presentationLink link:calculationLink link:definitionLink 1002004 - Statement - Consolidated Balance Sheets (Parenthetical) link:presentationLink link:calculationLink link:definitionLink 1003005 - Statement - Consolidated Statements of Comprehensive Income link:presentationLink link:calculationLink link:definitionLink 1004006 - Statement - Consolidated Statements of Comprehensive Income (Parenthetical) link:presentationLink link:calculationLink link:definitionLink 1005007 - Statement - Consolidated Statements of Changes in Stockholders' Equity link:presentationLink link:calculationLink link:definitionLink 1006008 - Statement - Consolidated Statements of Changes in Stockholders' Equity (Parenthetical) link:presentationLink link:calculationLink link:definitionLink 1007009 - Statement - Consolidated Statement of Cash Flows link:presentationLink link:calculationLink link:definitionLink 2101101 - Disclosure - Organization and Operations link:presentationLink link:calculationLink link:definitionLink 2402401 - Disclosure - Organization and Operations (Details) link:presentationLink link:calculationLink link:definitionLink 2103102 - Disclosure - Summary of Significant Accounting Policies link:presentationLink link:calculationLink link:definitionLink 2204201 - Disclosure - Summary of Significant Accounting Policies (Policies) link:presentationLink link:calculationLink link:definitionLink 2305301 - Disclosure - Summary of Significant Accounting Policies (Tables) link:presentationLink link:calculationLink link:definitionLink 2406402 - Disclosure - Summary of Significant Accounting Policies - Property, Plant and Equipment and Intangible Assets (Details) link:presentationLink link:calculationLink link:definitionLink 2407403 - Disclosure - Summary of Significant Accounting Policies - Real Estate Investments and Nonutility Properties (Details) link:presentationLink link:calculationLink link:definitionLink 2408404 - Disclosure - Summary of Significant Accounting Policies - Impairments of Long-Lived Assets and Goodwill (Details) link:presentationLink link:calculationLink link:definitionLink 2409405 - Disclosure - Summary of Significant Accounting Policies - Cash and Cash Equivalents, and Restricted Cash (Details) link:presentationLink link:calculationLink link:definitionLink 2410406 - Disclosure - Summary of Significant Accounting Policies - Financial Instruments and Investments (Details) link:presentationLink link:calculationLink link:definitionLink 2411407 - Disclosure - Summary of Significant Accounting Policies - Advances for Construction and Contributions in Aid of Construction (Details) link:presentationLink link:calculationLink link:definitionLink 2412408 - Disclosure - Summary of Significant Accounting Policies - Asset Retirement Obligation (Details) link:presentationLink link:calculationLink link:definitionLink 2413409 - Disclosure - Summary of Significant Accounting Policies - Revenue (Details) link:presentationLink link:calculationLink link:definitionLink 2414410 - Disclosure - Summary of Significant Accounting Policies - Earnings per Share (Details) link:presentationLink link:calculationLink link:definitionLink 2115103 - Disclosure - Regulatory Matters link:presentationLink link:calculationLink link:definitionLink 2316302 - Disclosure - Regulatory Matters (Tables) link:presentationLink link:calculationLink link:definitionLink 2417411 - Disclosure - Regulatory Matters - Regulatory Assets, Net (Details) link:presentationLink link:calculationLink link:definitionLink 2418412 - Disclosure - Regulatory Matters - Balancing and Memorandum Accounts (Details) link:presentationLink link:calculationLink link:definitionLink 2419413 - Disclosure - Regulatory Maters - Public Utilities General Disclosures (Details) link:presentationLink link:calculationLink link:definitionLink 2120104 - Disclosure - Capitalization link:presentationLink link:calculationLink link:definitionLink 2421414 - Disclosure - Capitalization (Details) link:presentationLink link:calculationLink link:definitionLink 2122105 - Disclosure - Lines of Credit link:presentationLink link:calculationLink link:definitionLink 2323303 - Disclosure - Lines of Credit (Tables) link:presentationLink link:calculationLink link:definitionLink 2424415 - Disclosure - Lines of Credit - Schedule of Lines of Credit (Details) link:presentationLink link:calculationLink link:definitionLink 2425416 - Disclosure - Lines of Credit - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 2126106 - Disclosure - Long-Term Debt link:presentationLink link:calculationLink link:definitionLink 2327304 - Disclosure - Long-Term Debt (Tables) link:presentationLink link:calculationLink link:definitionLink 2428417 - Disclosure - Long-Term Debt - Schedule of Long-term Debt Instruments (Details) link:presentationLink link:calculationLink link:definitionLink 2429418 - Disclosure - Long-Term Debt - Schedule of Maturities of Long-term Debt (Details) link:presentationLink link:calculationLink link:definitionLink 2430419 - Disclosure - Long-Term Debt - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 2131107 - Disclosure - Income Taxes link:presentationLink link:calculationLink link:definitionLink 2332305 - Disclosure - Income Taxes (Tables) link:presentationLink link:calculationLink link:definitionLink 2433420 - Disclosure - Income Taxes - Components of Income Tax Expense (Benefit) (Details) link:presentationLink link:calculationLink link:definitionLink 2434421 - Disclosure - Income Taxes - Federal Statutory Rate Reconciliation (Details) link:presentationLink link:calculationLink link:definitionLink 2435422 - Disclosure - Income Taxes - Components of Deferred Tax Assets and Liabilities (Details) link:presentationLink link:calculationLink link:definitionLink 2436423 - Disclosure - Income Taxes - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 2437424 - Disclosure - Income Taxes - Unrecognized Tax Benefits (Details) link:presentationLink link:calculationLink link:definitionLink 2138108 - Disclosure - Utility Plant Intangible Assets link:presentationLink link:calculationLink link:definitionLink 2339306 - Disclosure - Utility Plant Intangible Assets (Tables) link:presentationLink link:calculationLink link:definitionLink 2440425 - Disclosure - Utility Plant Intangible Assets - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 2441426 - Disclosure - Utility Plant Intangible Assets - Schedule of Finite-Lived Intangible Assets (Details) link:presentationLink link:calculationLink link:definitionLink 2142109 - Disclosure - Commitments link:presentationLink link:calculationLink link:definitionLink 2443427 - Disclosure - Commitments (Details) link:presentationLink link:calculationLink link:definitionLink 2144110 - Disclosure - Contingencies link:presentationLink link:calculationLink link:definitionLink 2145111 - Disclosure - Benefit Plans link:presentationLink link:calculationLink link:definitionLink 2346307 - Disclosure - Benefit Plans (Tables) link:presentationLink link:calculationLink link:definitionLink 2447428 - Disclosure - Benefit Plans - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 2448429 - Disclosure - Benefit Plans - Fair Value of Plan Assets (Details) link:presentationLink link:calculationLink link:definitionLink 2449430 - Disclosure - Benefit Plans - Actuarial Calculation Assumptions (Details) link:presentationLink link:calculationLink link:definitionLink 2450431 - Disclosure - Benefit Plans - Net Periodic Benefit Cost (Details) link:presentationLink link:calculationLink link:definitionLink 2451432 - Disclosure - Benefit Plans - Reconciliation of Funded Status (Details) link:presentationLink link:calculationLink link:definitionLink 2452433 - Disclosure - Benefit Plans - Amounts Recognized in Balance Sheet (Details) link:presentationLink link:calculationLink link:definitionLink 2453434 - Disclosure - Benefit Plans - Regulatory Asset (Details) link:presentationLink link:calculationLink link:definitionLink 2454435 - Disclosure - Benefit Plans - Plan Assets (Details) link:presentationLink link:calculationLink link:definitionLink 2455436 - Disclosure - Benefit Plans - Benefits Expected to be Paid in Next Five Years (Details) link:presentationLink link:calculationLink link:definitionLink 2156112 - Disclosure - Equity Plans link:presentationLink link:calculationLink link:definitionLink 2357308 - Disclosure - Equity Plans (Tables) link:presentationLink link:calculationLink link:definitionLink 2458437 - Disclosure - Equity Plans - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 2459438 - 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 2460439 - Disclosure - Equity Plans - Restricted Stock and Deferred Restricted Stock Activity (Details) link:presentationLink link:calculationLink link:definitionLink 2161113 - Disclosure - Segment and Non-Tariffed Businesses Reporting link:presentationLink link:calculationLink link:definitionLink 2362309 - Disclosure - Segment and Non-Tariffed Businesses Reporting (Tables) link:presentationLink link:calculationLink link:definitionLink 2463440 - Disclosure - Segment and Non-Tariffed Businesses Reporting (Details) link:presentationLink link:calculationLink link:definitionLink 2164114 - Disclosure - Business Combinations link:presentationLink link:calculationLink link:definitionLink 2365310 - Disclosure - Business Combinations (Tables) link:presentationLink link:calculationLink link:definitionLink 2466441 - Disclosure - Business Combinations - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 2467442 - Disclosure - Business Combinations - Schedule of Recognized Identified Assets Acquired and Liabilities Assumed (Details) link:presentationLink link:calculationLink link:definitionLink 2168115 - Disclosure - Financial Statement Schedule link:presentationLink link:calculationLink link:definitionLink 2469443 - Disclosure - Financial Statement Schedule - Condensed Balance Sheets (Details) link:presentationLink link:calculationLink link:definitionLink 2470444 - Disclosure - Financial Statement Schedule - Condensed Statements of Comprehensive Income (Details) link:presentationLink link:calculationLink link:definitionLink 2471445 - Disclosure - Financial Statement Schedule - Condensed Statements of Cash Flows (Details) link:presentationLink link:calculationLink link:definitionLink 2472446 - Disclosure - Financial Statement Schedule - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 2173116 - Disclosure - Valuation and Qualifying Accounts and Reserves link:presentationLink link:calculationLink link:definitionLink 2474447 - Disclosure - Valuation and Qualifying Accounts and Reserves (Details) link:presentationLink link:calculationLink link:definitionLink