Public Utilities, Amortization Period For State Investment Tax Credit

No definition available.

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- Definition

Public Utilities, Annual Savings Timeframe

+ References

No definition available.

+ Details

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- Definition

Public Utilities, Interim General Rate Increase, Common Equity Capitalization

+ References

No definition available.

+ Details

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- Definition

Public Utilities, Interim General Rate Increase, Effective Interest Rate Of Return

+ References

No definition available.

+ Details

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- Definition

Public Utilities, Interim General Rate Increase, Rate Base

+ References

No definition available.

+ Details

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- Definition

Public Utilities, Interim Revenue Requirement

+ References

No definition available.

+ Details

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- Definition

Public Utilities, Proposed Annual Savings

+ References

No definition available.

+ Details

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- Definition

Public Utilities, Proposed Annual Savings, Capital, Percentage

+ References

No definition available.

+ Details

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- Definition

Public Utilities, Proposed Annual Savings, Operations And Maintenance, Percentage

+ References

No definition available.

+ Details

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- Definition

Public Utilities, Stipulated Return On Average Common Equity Rate

+ References

No definition available.

+ Details

Name:	he_PublicUtilitiesStipulatedReturnOnAverageCommonEquityRate
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Period Type:	duration

- Definition

Public Utility, General Rate Increase, Maximum Exposure Cap

+ References

No definition available.

+ Details

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Data Type:	xbrli:monetaryItemType
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Period Type:	duration

- Definition

Public Utility, General Rate Increase, Risk Sharing Percentage, Ratepayer

+ References

No definition available.

+ Details

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Data Type:	num:percentItemType
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- Definition

-- None. No documentation exists for this element. --

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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
-Publisher FASB
-Name Accounting Standards Codification
-Topic 980
-SubTopic 340
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6499975&loc=d3e44250-110382

+ Details

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- Details

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- Details

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- Details

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- Details

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Electric utility segment - Most Recent Proceedings (Details) - USD ($) $ in Thousands	Oct. 22, 2020	May 13, 2020	Nov. 13, 2019	Dec. 31, 2020	Dec. 31, 2019
Regulatory Projects and Legal Obligations [Line Items]
Regulatory assets				$ 766,708	$ 715,080
Hawaiian Electric
Regulatory Projects and Legal Obligations [Line Items]
Timeframe to acquire annual savings		3 years
Proposed annual savings		$ 25,000
Proposed annual savings, capital, percentage		80.00%
Proposed annual savings, operations and maintenance, percentage		20.00%
Common equity capitalization rate	58.00%
Stipulated ROACE rate	9.50%
Effective interest rate of return	7.37%
HELCO
Regulatory Projects and Legal Obligations [Line Items]
Common equity capitalization rate			58.00%
Stipulated ROACE rate			9.50%
Effective interest rate of return			7.52%
Interim revenue requirement			$ 387,000
Rate base			$ 534,000
Amortization period for state investment tax credit			10 years
Risk sharing percentage, ratepayer			98.00%
Maximum exposure cap			$ 600
Hawaiian Electric Company, Inc. and Subsidiaries
Regulatory Projects and Legal Obligations [Line Items]
Regulatory assets				766,708	$ 715,080
Hawaiian Electric Company, Inc. and Subsidiaries \| COVID-19 Related PUC Order
Regulatory Projects and Legal Obligations [Line Items]
Regulatory assets				$ 18,000