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Short-Term Borrowings (Tables) | 9 Months Ended
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Sep. 30, 2024
Line of Credit Facility [Line Items] |
Schedule of Balances Outstanding and Interest Rates of Borrowings | Balances outstanding and interest rates on borrowings (excluding letters of credit) under Avista Corp.’s revolving committed line of credit were as follows as of September 30, 2024 and December 31, 2023 (dollars in thousands):
|  | September 30, |  |  | December 31, |
|  | 2024 |  |  | 2023 |
Borrowings outstanding at end of period |  | $ | 283,000 |  |  | $ | 349,000 |
Letters of credit outstanding at end of period |  |  | 4,700 |  |  |  | 4,700 |
Average interest rate on borrowings at end of period |  |  | 6.13 | % |  |  | 6.46 | %

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- Definition Tabular disclosure of short-term or long-term contractual arrangements with lenders, including letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 210 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(22)(b)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 210 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(19)(b)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1 + Details
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