0000001 - Document - Cover link:presentationLink link:calculationLink link:definitionLink 9952151 - Statement - CONDENSED CONSOLIDATED BALANCE SHEETS link:presentationLink link:calculationLink link:definitionLink 9952152 - Statement - CONDENSED CONSOLIDATED BALANCE SHEETS (Parenthetical) link:presentationLink link:calculationLink link:definitionLink 9952153 - Statement - CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS link:presentationLink link:calculationLink link:definitionLink 9952154 - Statement - CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME link:presentationLink link:calculationLink link:definitionLink 9952155 - Statement - CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (Parentheticals) link:presentationLink link:calculationLink link:definitionLink 9952156 - Statement - CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS link:presentationLink link:calculationLink link:definitionLink 9952157 - Disclosure - Organization and Operations and Basis of Presentation link:presentationLink link:calculationLink link:definitionLink 9952158 - Disclosure - Summary of Significant Accounting Policies link:presentationLink link:calculationLink link:definitionLink 9952159 - Disclosure - Stock-Based Compensation link:presentationLink link:calculationLink link:definitionLink 9952160 - Disclosure - Equity link:presentationLink link:calculationLink link:definitionLink 9952161 - Disclosure - Pension Plan and Other Postretirement Benefits link:presentationLink link:calculationLink link:definitionLink 9952162 - Disclosure - Short-term and Long-term Borrowings link:presentationLink link:calculationLink link:definitionLink 9952163 - Disclosure - Income Taxes link:presentationLink link:calculationLink link:definitionLink 9952164 - Disclosure - Regulatory Assets and Liabilities link:presentationLink link:calculationLink link:definitionLink 9952165 - Disclosure - Commitments and Contingencies link:presentationLink link:calculationLink link:definitionLink 9952166 - Disclosure - Fair Value of Financial Assets and Liabilities link:presentationLink link:calculationLink link:definitionLink 9952167 - Disclosure - Accumulated Other Comprehensive Loss link:presentationLink link:calculationLink link:definitionLink 9952168 - Disclosure - Segment Information 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 - Stock-Based Compensation (Tables) link:presentationLink link:calculationLink link:definitionLink 9955514 - Disclosure - Equity (Tables) link:presentationLink link:calculationLink link:definitionLink 9955515 - Disclosure - Pension Plan and Other Postretirement Benefits (Tables) link:presentationLink link:calculationLink link:definitionLink 9955516 - Disclosure - Income Taxes (Tables) link:presentationLink link:calculationLink link:definitionLink 9955517 - Disclosure - Regulatory Assets and Liabilities (Tables) link:presentationLink link:calculationLink link:definitionLink 9955518 - Disclosure - Fair Value of Financial Assets and Liabilities (Tables) link:presentationLink link:calculationLink link:definitionLink 9955519 - Disclosure - Accumulated Other Comprehensive Loss (Tables) link:presentationLink link:calculationLink link:definitionLink 9955520 - Disclosure - Organization and Operations and Basis of Presentation (Details) link:presentationLink link:calculationLink link:definitionLink 9955521 - Disclosure - Summary of Significant Accounting Policies - Schedule of Disaggregation of Revenue (Details) link:presentationLink link:calculationLink link:definitionLink 9955522 - Disclosure - Summary of Significant Accounting Policies - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 9955523 - Disclosure - Summary of Significant Accounting Policies - Schedule of Allowance for Credit Losses (Details) link:presentationLink link:calculationLink link:definitionLink 9955524 - Disclosure - Summary of Significant Accounting Policies - Schedule of Cash, Cash Equivalents, and Restricted Cash (Details) link:presentationLink link:calculationLink link:definitionLink 9955525 - Disclosure - Stock-Based Compensation - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 9955526 - Disclosure - Stock-Based Compensation - Schedule of Restricted Stock and Restricted Stock Unit Activity (Details) link:presentationLink link:calculationLink link:definitionLink 9955527 - Disclosure - Equity - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 9955528 - Disclosure - Equity - Schedule of Changes in Total Common Stockholders' Equity (Details) link:presentationLink link:calculationLink link:definitionLink 9955529 - Disclosure - Pension Plan and Other Postretirement Benefits - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 9955530 - Disclosure - Pension Plan and Other Postretirement Benefits - Schedule of Components of Net Periodic Benefit Costs for the Pension Plans and Other Postretirement Benefits (Details) link:presentationLink link:calculationLink link:definitionLink 9955531 - Disclosure - Short-term and Long-term Borrowings (Details) link:presentationLink link:calculationLink link:definitionLink 9955532 - Disclosure - Income Taxes - Schedule of Provision for Income Taxes (Details) link:presentationLink link:calculationLink link:definitionLink 9955533 - Disclosure - Income Taxes - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 9955534 - Disclosure - Regulatory Assets and Liabilities - Schedule of Regulatory Assets and Liabilities (Details) link:presentationLink link:calculationLink link:definitionLink 9955535 - Disclosure - Regulatory Assets and Liabilities - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 9955536 - Disclosure - Commitments and Contingencies (Details) link:presentationLink link:calculationLink link:definitionLink 9955537 - Disclosure - Fair Value of Financial Assets and Liabilities - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 9955538 - Disclosure - Fair Value of Financial Assets and Liabilities - Schedule of Long Term Debt at Fair Value (Details) link:presentationLink link:calculationLink link:definitionLink 9955539 - Disclosure - Accumulated Other Comprehensive Loss - Schedule of Accumulated Other Comprehensive Income (Loss) (Details) link:presentationLink link:calculationLink link:definitionLink 9955540 - Disclosure - Accumulated Other Comprehensive Loss - Schedule of Amounts Reclassified out of AOCL by Component (Details) link:presentationLink link:calculationLink link:definitionLink 9955541 - Disclosure - Segment Information (Details) link:presentationLink link:calculationLink link:definitionLink