XML 85 R68.htm IDEA: XBRL DOCUMENT v3.10.0.1

Revenues (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Revenue from Contract with Customer [Abstract]
General payment period			30 days
Disaggregation of Revenue [Line Items]
Revenues from contracts with customers	$ 621,587		$ 1,197,052
Total revenues	685,277	$ 632,281	1,331,151	$ 1,223,843
Services/goods transferred at a point in time
Disaggregation of Revenue [Line Items]
Revenues from contracts with customers	12,308		24,602
Services/goods transferred over time
Disaggregation of Revenue [Line Items]
Revenues from contracts with customers	609,279		1,172,450
Electric energy sales - residential
Disaggregation of Revenue [Line Items]
Revenues from contracts with customers	185,217		363,806
Electric energy sales - commercial
Disaggregation of Revenue [Line Items]
Revenues from contracts with customers	206,169		395,167
Electric energy sales - large light and power
Disaggregation of Revenue [Line Items]
Revenues from contracts with customers	214,676		406,997
Electric energy sales - other
Disaggregation of Revenue [Line Items]
Revenues from contracts with customers	3,217		6,480
Utility fees
Disaggregation of Revenue [Line Items]
Revenues from contracts with customers	751		1,548
Bank fees
Disaggregation of Revenue [Line Items]
Revenues from contracts with customers	11,557		23,054
Revenues from Other Sources
Disaggregation of Revenue [Line Items]
Total revenues	63,690		134,099
Regulatory revenue
Disaggregation of Revenue [Line Items]
Total revenues	(4,643)		107
Bank interest and dividend income
Disaggregation of Revenue [Line Items]
Total revenues	63,261		125,263
Other bank noninterest income
Disaggregation of Revenue [Line Items]
Total revenues	2,286		4,206
Other
Disaggregation of Revenue [Line Items]
Total revenues	2,786		4,523
Electric utility
Disaggregation of Revenue [Line Items]
Revenues from contracts with customers	610,030		1,173,998
Total revenues	608,126	556,875	1,178,553	1,075,486
Electric utility | Services/goods transferred at a point in time
Disaggregation of Revenue [Line Items]
Revenues from contracts with customers	751		1,548
Electric utility | Services/goods transferred over time
Disaggregation of Revenue [Line Items]
Revenues from contracts with customers	609,279		1,172,450
Electric utility | Electric energy sales - residential
Disaggregation of Revenue [Line Items]
Revenues from contracts with customers	185,217		363,806
Electric utility | Electric energy sales - commercial
Disaggregation of Revenue [Line Items]
Revenues from contracts with customers	206,169		395,167
Electric utility | Electric energy sales - large light and power
Disaggregation of Revenue [Line Items]
Revenues from contracts with customers	214,676		406,997
Electric utility | Electric energy sales - other
Disaggregation of Revenue [Line Items]
Revenues from contracts with customers	3,217		6,480
Electric utility | Utility fees
Disaggregation of Revenue [Line Items]
Revenues from contracts with customers	751		1,548
Electric utility | Bank fees
Disaggregation of Revenue [Line Items]
Revenues from contracts with customers	0		0
Electric utility | Revenues from Other Sources
Disaggregation of Revenue [Line Items]
Total revenues	(1,904)		4,555
Electric utility | Regulatory revenue
Disaggregation of Revenue [Line Items]
Total revenues	(4,643)		107
Electric utility | Bank interest and dividend income
Disaggregation of Revenue [Line Items]
Total revenues	0		0
Electric utility | Other bank noninterest income
Disaggregation of Revenue [Line Items]
Total revenues	0		0
Electric utility | Other
Disaggregation of Revenue [Line Items]
Total revenues	2,739		4,448
Bank
Disaggregation of Revenue [Line Items]
Revenues from contracts with customers	11,557		23,054
Total revenues	77,104	75,329	152,523	148,185
Bank | Services/goods transferred at a point in time
Disaggregation of Revenue [Line Items]
Revenues from contracts with customers	11,557		23,054
Bank | Services/goods transferred over time
Disaggregation of Revenue [Line Items]
Revenues from contracts with customers	0		0
Bank | Electric energy sales - residential
Disaggregation of Revenue [Line Items]
Revenues from contracts with customers	0		0
Bank | Electric energy sales - commercial
Disaggregation of Revenue [Line Items]
Revenues from contracts with customers	0		0
Bank | Electric energy sales - large light and power
Disaggregation of Revenue [Line Items]
Revenues from contracts with customers	0		0
Bank | Electric energy sales - other
Disaggregation of Revenue [Line Items]
Revenues from contracts with customers	0		0
Bank | Utility fees
Disaggregation of Revenue [Line Items]
Revenues from contracts with customers	0		0
Bank | Bank fees
Disaggregation of Revenue [Line Items]
Revenues from contracts with customers	11,557		23,054
Bank | Revenues from Other Sources
Disaggregation of Revenue [Line Items]
Total revenues	65,547		129,469
Bank | Regulatory revenue
Disaggregation of Revenue [Line Items]
Total revenues	0		0
Bank | Bank interest and dividend income
Disaggregation of Revenue [Line Items]
Total revenues	63,261		125,263
Bank | Other bank noninterest income
Disaggregation of Revenue [Line Items]
Total revenues	2,286		4,206
Bank | Other
Disaggregation of Revenue [Line Items]
Total revenues	0		0
Other
Disaggregation of Revenue [Line Items]
Revenues from contracts with customers	0		0
Total revenues	47	$ 77	75	$ 172
Other | Services/goods transferred at a point in time
Disaggregation of Revenue [Line Items]
Revenues from contracts with customers	0		0
Other | Services/goods transferred over time
Disaggregation of Revenue [Line Items]
Revenues from contracts with customers	0		0
Other | Electric energy sales - residential
Disaggregation of Revenue [Line Items]
Revenues from contracts with customers	0		0
Other | Electric energy sales - commercial
Disaggregation of Revenue [Line Items]
Revenues from contracts with customers	0		0
Other | Electric energy sales - large light and power
Disaggregation of Revenue [Line Items]
Revenues from contracts with customers	0		0
Other | Electric energy sales - other
Disaggregation of Revenue [Line Items]
Revenues from contracts with customers	0		0
Other | Utility fees
Disaggregation of Revenue [Line Items]
Revenues from contracts with customers	0		0
Other | Bank fees
Disaggregation of Revenue [Line Items]
Revenues from contracts with customers	0		0
Other | Revenues from Other Sources
Disaggregation of Revenue [Line Items]
Total revenues	47		75
Other | Regulatory revenue
Disaggregation of Revenue [Line Items]
Total revenues	0		0
Other | Bank interest and dividend income
Disaggregation of Revenue [Line Items]
Total revenues	0		0
Other | Other bank noninterest income
Disaggregation of Revenue [Line Items]
Total revenues	0		0
Other | Other
Disaggregation of Revenue [Line Items]
Total revenues	$ 47		$ 75

X

- Definition

General Payment Period

+ References

No definition available.

+ Details

Name:	he_GeneralPaymentPeriod
Namespace Prefix:	he_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

X

- 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

Name:	us-gaap_DisaggregationOfRevenueLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- References

No definition available.

+ Details

Name:	us-gaap_RevenueFromContractWithCustomerAbstract
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Amount, including tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value-added and excise.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 1
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=109196051&loc=SL49130539-203045

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 5
-URI http://asc.fasb.org/extlink&oid=109196051&loc=SL49130545-203045

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 4
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=109196051&loc=SL49130543-203045

+ Details

Name:	us-gaap_RevenueFromContractWithCustomerIncludingAssessedTax
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

X

- Definition

Amount of revenue recognized from goods sold, services rendered, insurance premiums, or other activities that constitute an earning process. Includes, but is not limited to, investment and interest income before deduction of interest expense when recognized as a component of revenue, and sales and trading gain (loss).

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 22
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=115929826&loc=d3e8736-108599

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 220
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03.1)
-URI http://asc.fasb.org/extlink&oid=115205541&loc=SL114868664-224227

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 32
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=115929826&loc=d3e8933-108599

Reference 4: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 22
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=115929826&loc=d3e8736-108599

+ Details

Name:	us-gaap_Revenues
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

X

- Details

Name:	us-gaap_TimingOfTransferOfGoodOrServiceAxis=us-gaap_TransferredAtPointInTimeMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_TimingOfTransferOfGoodOrServiceAxis=us-gaap_TransferredOverTimeMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	srt_ProductOrServiceAxis=he_ElectricEnergySalesResidentialMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	srt_ProductOrServiceAxis=he_ElectricEnergySalesCommercialMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	srt_ProductOrServiceAxis=he_ElectricEnergySalesLargeLightAndPowerMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	srt_ProductOrServiceAxis=he_ElectricEnergySalesOtherMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	srt_ProductOrServiceAxis=he_UtilityFeesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	srt_ProductOrServiceAxis=he_BankFeesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	srt_ProductOrServiceAxis=he_RevenuesFromOtherSourcesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	srt_ProductOrServiceAxis=he_RegulatoryRevenueMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	srt_ProductOrServiceAxis=he_BankInterestAndDividendIncomeMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	srt_ProductOrServiceAxis=he_OtherBankNoninterestIncomeMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	srt_ProductOrServiceAxis=he_OtherRevenueSourcesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_StatementBusinessSegmentsAxis=he_ElectricUtilitySegmentMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_StatementBusinessSegmentsAxis=he_BankingSegmentMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_StatementBusinessSegmentsAxis=us-gaap_AllOtherSegmentsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: