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Committed Lines of Credit (Tables) | 3 Months Ended
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Mar. 31, 2022
Avista Utilities [Member] |
Short-term Debt [Line Items] |
Schedule of Balances Outstanding and Interest Rates of Borrowings | Balances outstanding and interest rates of borrowings (excluding letters of credit) under the Company’s revolving committed line of credit were as follows as of March 31, 2022 and December 31, 2021 (dollars in thousands):
|  | March 31, |  |  | December 31, |
|  | 2022 |  |  | 2021 |
Balance outstanding at end of period (1) |  | $ | — |  |  | $ | 284,000 |
Letters of credit outstanding at end of period |  | $ | 29,288 |  |  | $ | 34,000 |
Average interest rate at end of period |  |  | — |  |  |  | 1.11 | %
(1) During March 2022, the Company issued $400.0 million in first mortgage bonds which were used to repay the outstanding balance of the committed line of credit. See Note 9 for further discussion of the bond issuance.

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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 -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.19(b),22(b)) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 + Details
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