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Disclosure - Asset Retirement Obligations link:presentationLink link:calculationLink link:definitionLink 2413402 - Disclosure - Asset Retirement Obligations (Schedule Of Changes In Asset Retirement Obligation) (Details) link:presentationLink link:calculationLink link:definitionLink 2313301 - Disclosure - Asset Retirement Obligations (Tables) link:presentationLink link:calculationLink link:definitionLink 2108100 - Disclosure - Business Acquisitions link:presentationLink link:calculationLink link:definitionLink 2408404 - Disclosure - Business Acquisitions Business Acquisitions Assets Acquired Liabilities Assumed (Details) link:presentationLink link:calculationLink link:definitionLink 2408403 - Disclosure - Business Acquisitions Business Acquisitions Contract Price and Fair Value of Consideration Transferred (Details) link:presentationLink link:calculationLink link:definitionLink 2408402 - Disclosure - Business Acquisitions Business Acquisitions (Details) link:presentationLink link:calculationLink link:definitionLink 2408405 - Disclosure - Business Acquisitions Business Acquisitions Pro Forma Operating Results (Details) link:presentationLink link:calculationLink link:definitionLink 2308301 - Disclosure - Business Acquisitions Business Acquisitions (Tables) link:presentationLink link:calculationLink link:definitionLink 2128100 - Disclosure - Commitments and Contingencies link:presentationLink link:calculationLink link:definitionLink 2428402 - Disclosure - Commitments and Contingencies Commitments and Contingencies (Details) link:presentationLink link:calculationLink link:definitionLink 2328301 - Disclosure - Commitments and Contingencies Commitments and Contingencies (Tables) link:presentationLink link:calculationLink link:definitionLink 2117100 - Disclosure - Committed Lines of Credit link:presentationLink link:calculationLink link:definitionLink 2417402 - Disclosure - Committed Lines of Credit (Details) link:presentationLink link:calculationLink link:definitionLink 2317301 - Disclosure - Committed Lines of Credit (Tables) link:presentationLink link:calculationLink link:definitionLink 2124100 - Disclosure - Common Stock link:presentationLink link:calculationLink link:definitionLink 2424402 - Disclosure - Common Stock (Details) link:presentationLink link:calculationLink link:definitionLink 2424403 - Disclosure - Common Stock Dividends Declared (Details) link:presentationLink link:calculationLink link:definitionLink 2424404 - Disclosure - Common Stock Stock Repurchase Programs (Details) link:presentationLink link:calculationLink link:definitionLink 2324301 - Disclosure - Common Stock (Tables) link:presentationLink link:calculationLink link:definitionLink 1003000 - Statement - Consolidated Balance Sheets link:presentationLink link:calculationLink link:definitionLink 1003501 - Statement - Consolidated Balance Sheets (Parenthetical) link:presentationLink link:calculationLink link:definitionLink 1004000 - Statement - Consolidated Statements Of Cash Flows link:presentationLink link:calculationLink link:definitionLink 1002000 - Statement - Consolidated Statements Of Comprehensive Income link:presentationLink link:calculationLink link:definitionLink 1002501 - Statement - Consolidated Statements Of Comprehensive Income (Parenthetical) link:presentationLink link:calculationLink link:definitionLink 1005000 - Statement - Consolidated Statements Of Equity And Redeemable Noncontrolling Interests link:presentationLink link:calculationLink link:definitionLink 1001000 - Statement - Consolidated Statements Of Income link:presentationLink link:calculationLink link:definitionLink 2110100 - Disclosure - Derivatives And Risk Management link:presentationLink link:calculationLink link:definitionLink 2410406 - Disclosure - Derivatives And Risk Management (Derivative Instruments Summary) (Details) link:presentationLink link:calculationLink link:definitionLink 2410407 - Disclosure - Derivatives And Risk Management Derivatives and Risk Management (Collateral) (Details) link:presentationLink link:calculationLink link:definitionLink 2410404 - Disclosure - Derivatives And Risk Management Derivatives and Risk Management (Foreign Currency Exchange Contracts) (Details) link:presentationLink link:calculationLink link:definitionLink 2410403 - Disclosure - Derivatives And Risk Management (Energy Commodity Derivatives) (Details) link:presentationLink link:calculationLink link:definitionLink 2410405 - Disclosure - Derivatives And Risk Management (Interest Rate Swap Agreements) (Details) link:presentationLink link:calculationLink link:definitionLink 2410402 - Disclosure - Derivatives And Risk Management (Narrative) (Details) link:presentationLink link:calculationLink link:definitionLink 2310301 - Disclosure - Derivatives And Risk Management (Tables) link:presentationLink link:calculationLink link:definitionLink 2409402 - Disclosure - Discontinued Operations Discontinued Operations (Details) link:presentationLink link:calculationLink link:definitionLink 2109100 - Disclosure - Discontinued Operations Discontinued Operations (Notes) link:presentationLink link:calculationLink link:definitionLink 2409404 - Disclosure - Discontinued Operations Discontinued Operations Summary of Assets and Liabilities (Details) link:presentationLink link:calculationLink link:definitionLink 2409403 - Disclosure - Discontinued Operations Discontinued Operations Summary of Cash Proceeds from Sale of Discontinued Operations (Details) link:presentationLink link:calculationLink link:definitionLink 2409405 - Disclosure - Discontinued Operations Discontinued Operations Summary of Income Statement Information (Details) link:presentationLink link:calculationLink link:definitionLink 2309301 - Disclosure - Discontinued Operations Discontinued Operations (Tables) link:presentationLink link:calculationLink link:definitionLink 0001000 - Document - Document And Entity Information link:presentationLink link:calculationLink link:definitionLink 2125100 - Disclosure - Earnings Per Common Share Attributable To Avista Corporation link:presentationLink link:calculationLink link:definitionLink 2325301 - Disclosure - Earnings Per Common Share Attributable To Avista Corporation (Tables) link:presentationLink link:calculationLink link:definitionLink 2425402 - Disclosure - Earnings Per Share Attributable To Avista Corporation (Computation Of Earnings Per Share) (Details) link:presentationLink link:calculationLink link:definitionLink 2116100 - Disclosure - Energy Purchase Contracts link:presentationLink link:calculationLink link:definitionLink 2416405 - Disclosure - Energy Purchase Contracts (Components Of PUD Contracts) (Details) link:presentationLink link:calculationLink link:definitionLink 2416406 - Disclosure - Energy Purchase Contracts (Estimated Aggregate Amounts Of Required Minimum Payments) (Details) link:presentationLink link:calculationLink link:definitionLink 2416403 - Disclosure - Energy Purchase Contracts (Future Contractual Commitments For Power Resources And Natural Gas Resources) (Details) link:presentationLink link:calculationLink link:definitionLink 2416404 - Disclosure - Energy Purchase Contracts (PUD Contracts Expenses) (Details) link:presentationLink link:calculationLink link:definitionLink 2416402 - Disclosure - Energy Purchase Contracts (Schedule Of Utility Total Expenses) (Details) link:presentationLink link:calculationLink link:definitionLink 2316301 - Disclosure - Energy Purchase Contracts (Tables) link:presentationLink link:calculationLink link:definitionLink 2123100 - Disclosure - Fair Value link:presentationLink link:calculationLink link:definitionLink 2423402 - Disclosure - Fair Value (Carrying Value And Estimated Fair Value Of Financial Instruments) (Details) link:presentationLink link:calculationLink link:definitionLink 2423403 - Disclosure - Fair Value (Fair Value Of Assets And Liabilities Measured On Recurring Basis) (Details) link:presentationLink link:calculationLink link:definitionLink 2423404 - Disclosure - Fair Value (Quantitative Information) (Details) link:presentationLink link:calculationLink link:definitionLink 2423405 - Disclosure - Fair Value (Reconciliation For All Assets And Liabilities Measured At Fair Value On A Recurring Basis Using Significant Unobservable Inputs (Level 3)) (Details) link:presentationLink link:calculationLink link:definitionLink 2323301 - Disclosure - Fair Value (Tables) link:presentationLink link:calculationLink link:definitionLink 2131100 - Disclosure - Information By Business Segments link:presentationLink link:calculationLink link:definitionLink 2431402 - Disclosure - Information By Business Segments (Details) link:presentationLink link:calculationLink link:definitionLink 2331301 - Disclosure - Information By Business Segments (Tables) link:presentationLink link:calculationLink link:definitionLink 2111100 - Disclosure - Jointly Owned Electric Facilities link:presentationLink link:calculationLink link:definitionLink 2411402 - Disclosure - Jointly Owned Electric Facilities (Details) link:presentationLink link:calculationLink link:definitionLink 2311301 - Disclosure - Jointly Owned Electric Facilities (Tables) link:presentationLink link:calculationLink link:definitionLink 2118100 - Disclosure - Long-Term Debt and Capital Leases link:presentationLink link:calculationLink link:definitionLink 2418405 - Disclosure - Long-Term Debt and Capital Leases Long-Term Debt and Capital Leases (Capital Lease Obligations) (Details) link:presentationLink link:calculationLink link:definitionLink 2418406 - Disclosure - Long-Term Debt and Capital Leases Long-Term Debt and Capital Leases (Schedule of Capital Lease Obligation Maturities) (Details) link:presentationLink link:calculationLink link:definitionLink 2418402 - Disclosure - Long-Term Debt and Capital Leases (Narrative) (Details) link:presentationLink link:calculationLink link:definitionLink 2418403 - Disclosure - Long-Term Debt and Capital Leases (Schedule Of Long-Term Debt Instruments) (Details) link:presentationLink link:calculationLink link:definitionLink 2418404 - Disclosure - Long-Term Debt and Capital Leases (Schedule Of Long-Term Debt Maturities) (Details) link:presentationLink link:calculationLink link:definitionLink 2318301 - Disclosure - Long-Term Debt and Capital Leases (Tables) link:presentationLink link:calculationLink link:definitionLink 2120100 - Disclosure - Long-Term Debt To Affiliated Trusts link:presentationLink link:calculationLink link:definitionLink 2420402 - Disclosure - Long-Term Debt To Affiliated Trusts (Narrative) (Details) link:presentationLink link:calculationLink link:definitionLink 2420403 - Disclosure - Long-Term Debt To Affiliated Trusts (Schedule Of Distribution Rates Paid) (Details) link:presentationLink link:calculationLink link:definitionLink 2320301 - Disclosure - Long-Term Debt To Affiliated Trusts (Tables) link:presentationLink link:calculationLink link:definitionLink 2102100 - Disclosure - New Accounting Standards link:presentationLink link:calculationLink link:definitionLink 2114100 - Disclosure - Pension Plans And Other Postretirement Benefit Plans link:presentationLink link:calculationLink link:definitionLink 2414404 - Disclosure - Pension Plans And Other Postretirement Benefit Plans (Change in Benefit Obligation and Plan Assets) (Details) link:presentationLink link:calculationLink link:definitionLink 2414408 - Disclosure - Pension Plans And Other Postretirement Benefit Plans (Changes In Level 3 Assets) (Details) link:presentationLink link:calculationLink link:definitionLink 2414405 - Disclosure - Pension Plans And Other Postretirement Benefit Plans (Components Of Net Periodic Benefit Cost) (Details) link:presentationLink link:calculationLink link:definitionLink 2414410 - Disclosure - Pension Plans And Other Postretirement Benefit Plans (Deferred Compensation) (Details) link:presentationLink link:calculationLink link:definitionLink 2414409 - Disclosure - Pension Plans And Other Postretirement Benefit Plans (Employer Matching Contributions) (Details) link:presentationLink link:calculationLink link:definitionLink 2414406 - Disclosure - Pension Plans And Other Postretirement Benefit Plans (Investment Allocation Percentages By Asset Classes) (Details) link:presentationLink link:calculationLink link:definitionLink 2414402 - Disclosure - Pension Plans And Other Postretirement Benefit Plans (Narrative) (Details) link:presentationLink link:calculationLink link:definitionLink 2414407 - Disclosure - Pension Plans And Other Postretirement Benefit Plans (Schedule Of Allocation Of Plan Assets) (Details) link:presentationLink link:calculationLink link:definitionLink 2414403 - Disclosure - Pension Plans And Other Postretirement Benefit Plans (Schedule Of Expected Benefit Payments) (Details) link:presentationLink link:calculationLink link:definitionLink 2314301 - Disclosure - Pension Plans And Other Postretirement Benefit Plans (Tables) link:presentationLink link:calculationLink link:definitionLink 2112100 - Disclosure - Property, Plant And Equipment link:presentationLink link:calculationLink link:definitionLink 2412402 - Disclosure - Property, Plant And Equipment (Major Classifications Of Property, Plant And Equipment) (Details) link:presentationLink link:calculationLink link:definitionLink 2312301 - Disclosure - Property, Plant And Equipment (Tables) link:presentationLink link:calculationLink link:definitionLink 2130100 - Disclosure - Regulatory Matters link:presentationLink link:calculationLink link:definitionLink 2430402 - Disclosure - Regulatory Matters (Narrative) (Details) link:presentationLink link:calculationLink link:definitionLink 2430404 - Disclosure - Regulatory Matters Regulatory Matters (Decoupling and Earnings Sharing) (Details) link:presentationLink link:calculationLink link:definitionLink 2430403 - Disclosure - Regulatory Matters (Schedule Of Asset And Liability) (Details) link:presentationLink link:calculationLink link:definitionLink 2330301 - Disclosure - Regulatory Matters (Tables) link:presentationLink link:calculationLink link:definitionLink 2132100 - Disclosure - Selected Quarterly Financial Data link:presentationLink link:calculationLink link:definitionLink 2432402 - Disclosure - Selected Quarterly Financial Data (Details) link:presentationLink link:calculationLink link:definitionLink 2332301 - Disclosure - Selected Quarterly Financial Data (Tables) link:presentationLink link:calculationLink link:definitionLink 2101100 - Disclosure - Summary Of Significant Accounting Policies link:presentationLink link:calculationLink link:definitionLink 2401414 - Disclosure - Summary Of Significant Accounting Policies (Accumulated Other Comprehensive Loss) (Details) link:presentationLink link:calculationLink link:definitionLink 2401410 - Disclosure - Summary Of Significant Accounting Policies (Allowance For Doubtful Accounts) (Details) link:presentationLink link:calculationLink link:definitionLink 2401412 - Disclosure - Summary Of Significant Accounting Policies (Asset Retirement Obligations) (Details) link:presentationLink link:calculationLink link:definitionLink 2401407 - Disclosure - Summary Of Significant Accounting Policies (Effective AFUDC Rate) (Details) link:presentationLink link:calculationLink link:definitionLink 2401413 - Disclosure - Summary Of Significant Accounting Policies (Goodwill) (Details) link:presentationLink link:calculationLink link:definitionLink 2401411 - Disclosure - Summary Of Significant Accounting Policies (Materials And Supplies Fuel Stock And Natural Gas Stored) (Details) link:presentationLink link:calculationLink link:definitionLink 2401403 - Disclosure - Summary Of Significant Accounting Policies (Narrative) (Details) link:presentationLink link:calculationLink link:definitionLink 2401409 - Disclosure - Summary Of Significant Accounting Policies (Other Income - Net) (Details) link:presentationLink link:calculationLink link:definitionLink 2201201 - Disclosure - Summary Of Significant Accounting Policies (Policy) link:presentationLink link:calculationLink link:definitionLink 2401405 - Disclosure - Summary Of Significant Accounting Policies (Ratio Of Depreciation To Average Depreciable Property) (Details) link:presentationLink link:calculationLink link:definitionLink 2401415 - Disclosure - Summary Of Significant Accounting Policies Summary of Significant Accounting Policies (Appropriated Retained Earnings) (Details) link:presentationLink link:calculationLink link:definitionLink 2401408 - Disclosure - Summary Of Significant Accounting Policies Summary of Significant Accounting Policies (Stock-Based Compensation) (Details) link:presentationLink link:calculationLink link:definitionLink 2301302 - Disclosure - Summary Of Significant Accounting Policies (Tables) link:presentationLink link:calculationLink link:definitionLink 2401404 - Disclosure - Summary Of Significant Accounting Policies (Unbilled Accounts Receivable) (Details) link:presentationLink link:calculationLink link:definitionLink 2401406 - Disclosure - Summary Of Significant Accounting Policies (Utility Taxes) (Details) link:presentationLink link:calculationLink link:definitionLink 2103100 - Disclosure - Variable Interest Entities link:presentationLink link:calculationLink link:definitionLink 2403401 - Disclosure - Variable Interest Entities (Details) link:presentationLink link:calculationLink link:definitionLink