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v3.22.4

Short-term borrowings (Details) |  |  |  | 12 Months Ended |
--- | --- | --- | --- | --- | ---
Dec. 28, 2022 USD ($) | Feb. 18, 2022 USD ($) extensionOption | May 14, 2021 USD ($) institution | Dec. 31, 2022 USD ($) instrument | Dec. 31, 2021 USD ($) instrument | Oct. 20, 2022 USD ($) institution
Short-term borrowings |  |  |  |  |  |
Short-term borrowings—other than bank |  |  |  | $ 172,568,000 | $ 53,998,000 |
Mauo, LLC and Hamakua Energy, LLC | Letter of Credit |  |  |  |  |  |
Short-term borrowings |  |  |  |  |  |
Number of letters of credit entered into during the period | instrument |  |  |  | 5 | 5 |
Letters of credit outstanding |  |  |  | $ 8,000,000 | $ 10,000,000 |
Hawaiian Electric Company, Inc. and Subsidiaries |  |  |  |  |  |
Short-term borrowings |  |  |  |  |  |
Weighted-average interest rate |  |  |  | 4.80% |  |
Credit Facilities | Hawaiian Electric |  |  |  |  |  |
Short-term borrowings |  |  |  |  |  |
Number of financial institutions | institution |  |  |  |  |  | 2
Credit Facilities | Hawaiian Electric Company, Inc. and Subsidiaries |  |  |  |  |  |
Short-term borrowings |  |  |  |  |  |
Credit agreement |  |  |  | $ 0 | 0 |
Number of financial institutions | institution |  |  | 9 |  |  |
HEI Facility |  |  |  |  |  |
Short-term borrowings |  |  |  |  |  |
Credit agreement |  |  | $ 175,000,000 |  |  |
Commitment fee percentage |  |  | 0.20% |  |  |
HEI Facility | Maximum |  |  |  |  |  |
Short-term borrowings |  |  |  |  |  |
Capitalization ratio required to be maintained as per the debt covenant |  |  |  | 50.00% |  |
HEI Facility | Hawaiian Electric Company, Inc. and Subsidiaries |  |  |  |  |  |
Short-term borrowings |  |  |  |  |  |
Ratio of consolidated capitalization required to be maintained as per the debt covenant |  |  |  | 35.00% |  |
Hawaiian Electric Facility |  |  |  |  |  |
Short-term borrowings |  |  |  |  |  |
Commitment fee percentage |  |  | 0.175% |  |  |
Hawaiian Electric Facility | LIBOR |  |  |  |  |  |
Short-term borrowings |  |  |  |  |  |
Line of credit facility basis point spread |  |  | 1.25% |  |  |
Hawaiian Electric Facility | Hawaiian Electric Company, Inc. and Subsidiaries |  |  |  |  |  |
Short-term borrowings |  |  |  |  |  |
Credit agreement |  | $ 275,000,000 | $ 200,000,000 |  |  |
Number of extension options | extensionOption |  | 2 |  |  |  |
Extension period |  | 1 year |  |  |  |
Credit Facilities Effective July 2017 | Hawaiian Electric Company, Inc. and Subsidiaries |  |  |  |  |  |
Short-term borrowings |  |  |  |  |  |
Ratio of consolidated subsidiary debt to total consolidated capitalization required to be maintained as per the debt covenant |  |  | 65.00% |  |  |
Commercial paper |  |  |  |  |  |
Short-term borrowings |  |  |  |  |  |
Short-term borrowings—other than bank |  |  |  | $ 50,000,000 | $ 54,000,000 |
Weighted-average interest rate |  |  |  | 5.19% | 0.55% |
Commercial paper | Hawaiian Electric Company, Inc. and Subsidiaries |  |  |  |  |  |
Short-term borrowings |  |  |  |  |  |
Short-term borrowings—other than bank |  |  |  | $ 88,000,000 | $ 0 |
Term Loan | Hawaiian Electric |  |  |  |  |  |
Short-term borrowings |  |  |  |  |  |
Credit agreement |  |  |  |  |  | $ 100,000,000
Term Loan | Hawaiian Electric | SOFR |  |  |  |  |  |
Short-term borrowings |  |  |  |  |  |
Line of credit outstanding | $ 35,000,000 |  |  |  |  |
Debt instrument, interest rate, effective percentage | 5.32% |  |  |  |  |
Debt instrument term | 1 month |  |  |  |  |
Line of credit facility | Credit Facilities Effective July 2017 |  |  |  |  |  |
Short-term borrowings |  |  |  |  |  |
Line of credit facility basis point spread |  |  | 1.375% |  |  |

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- Definition Represents the consolidated subsidiary debt to total consolidated capitalization ratio which the entity is required to maintain pursuant to a debt covenant. + References No definition available. + Details
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- Definition Represents the nonconsolidated capitalization ratio, which the entity is required to maintain pursuant to a debt covenant. + References No definition available. + Details
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- Definition The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a 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. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement. + 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(22)) -URI https://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03(16)) -URI https://asc.fasb.org/extlink&oid=126897435&loc=d3e534808-122878 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03(16)) -URI https://asc.fasb.org/extlink&oid=126734703&loc=d3e572229-122910 + Details
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- Definition Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility. + 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 https://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 + Details
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