Humanitarian Aid Fund, Committed Contribution

No definition available.

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- Definition

Insurance Reimbursement Receivable

+ References

No definition available.

+ Details

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- Definition

Loss Contingency, Directors And Officers Liability Insurance

+ References

No definition available.

+ Details

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- Definition

Loss Contingency, Directors And Officers Liability Insurance, Retention Amount

+ References

No definition available.

+ Details

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- Definition

Loss Contingency, Excess Liability Insurance

+ References

No definition available.

+ Details

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- Definition

Loss Contingency, Excess Liability Insurance, Retention Amount

+ References

No definition available.

+ Details

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- Definition

Loss Contingency, Property Insurance Policy Limit

+ References

No definition available.

+ Details

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- Definition

Loss Contingency, Property Insurance Policy Limit, Retention For Generation Assets

+ References

No definition available.

+ Details

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Balance Type:	credit
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- Definition

Number Of Customers With Power Not Yet Restored

+ References

No definition available.

+ Details

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Balance Type:	na
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- Definition

Unusual Or Infrequent Item, Humanitarian Aid, Expected Beneficiary Amount

+ References

No definition available.

+ Details

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Data Type:	xbrli:monetaryItemType
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- Definition

Unusual Or Infrequent Item, Humanitarian Aid, Expected Funding Amount

+ References

No definition available.

+ Details

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- Definition

The amount recovered from insurance. These recoveries reduce costs and losses that are reported as a separate line item under operating expenses.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 220
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03.3)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147483621/220-10-S99-2

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- Definition

The amount of expense provided in the period for legal costs incurred on or before the balance sheet date pertaining to resolved, pending or threatened litigation, including arbitration and mediation proceedings.

+ References

+ Details

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Balance Type:	debit
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- Definition

The total number of new claims filed pertaining to a loss contingency during the period.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 450
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 4
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147483076/450-20-50-4

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 450
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 9
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147483076/450-20-50-9

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- Definition

Number of plaintiffs that have filed claims pertaining to a loss contingency.

+ References

+ Details

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

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- Definition

The amount for the individual regulatory asset as itemized in a table of regulatory assets as of the end of the period.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 980
-SubTopic 340
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147481878/980-340-50-1

+ Details

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Balance Type:	debit
Period Type:	instant

- Definition

Amount, before deduction of insurance proceeds, of loss recognized in the income statement for an event or transaction that is unusual in nature or infrequent in occurrence, or both.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 220
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147483613/220-20-50-1

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Maui windstorm and wildfires - Narrative (Details) $ in Thousands		12 Months Ended
	Aug. 08, 2023 USD ($)	Dec. 31, 2023 USD ($) plaintiff customer claim	Nov. 08, 2023 USD ($)	Dec. 31, 2022 USD ($)
Public Utilities, General Disclosures [Line Items]
Number of customers with power not yet restored (less than) \| customer		10
Regulatory assets		$ 294,804		$ 242,513
Property insurance policy limit	$ 500,000
Retention for property damages	$ 1,000
Natural Disasters and Other Casualty Events
Public Utilities, General Disclosures [Line Items]
Expected funding amount			$ 175,000
Expected beneficiary amount			$ 1,500
Hawaiian Electric Company, Inc. and Subsidiaries
Public Utilities, General Disclosures [Line Items]
Regulatory assets		294,804		$ 242,513
Hawaiian Electric Company, Inc. and Subsidiaries \| Natural Disasters and Other Casualty Events
Public Utilities, General Disclosures [Line Items]
Regulatory assets		14,700
Committed contribution to humanitarian fund		75,000
Insurance reimbursement receivable		75,000
Maui Windstorm and Wildfires \| Natural Disasters and Other Casualty Events
Public Utilities, General Disclosures [Line Items]
Insurance recoveries		104,580
Capital costs		63,400
Maui Windstorm and Wildfires \| Hawaiian Electric Company, Inc. and Subsidiaries \| Natural Disasters and Other Casualty Events
Public Utilities, General Disclosures [Line Items]
Insurance recoveries		98,613
Capital costs		$ 18,000
Maui Windstorm and Wildfires \| Maui Wildfire Negligence
Public Utilities, General Disclosures [Line Items]
Number of cases filed by subrogation insurers \| plaintiff		160
Legal expenses		$ 34,900
Excess liability insurance		165,000
Excess liability insurance, retention amount		300
Directors and officers liability insurance		145,000
Directors and officers liability insurance, retention		$ 1,000
Maui Windstorm and Wildfires \| Maui Wildfire Negligence \| County Of Maui
Public Utilities, General Disclosures [Line Items]
Lawsuit claim filed \| claim		1
Maui Windstorm and Wildfires \| Maui Wildfire Negligence \| Subrogation Insurers
Public Utilities, General Disclosures [Line Items]
Lawsuit claim filed \| claim		2
Maui Windstorm and Wildfires \| Maui Wildfire Negligence \| Hawaiian Electric Company, Inc. and Subsidiaries
Public Utilities, General Disclosures [Line Items]
Legal expenses		$ 24,700
Insurance Claims, Legal-Related Recoveries
Public Utilities, General Disclosures [Line Items]
Insurance reimbursement receivable		26,600
Insurance recoveries		$ 29,600