Bank segment (HEI only) - Credit Risk Profile - Nonaccrual Loans (Details) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2022	Dec. 31, 2021
Credit risk profile based on nonaccrual loans
With a related ACL	$ 12,043	$ 37,764
Without a related ACL	4,423	7,210
Total	16,466	44,974
Total troubled debt restructured loans accruing interest	30,130	24,917
Commercial
Credit risk profile based on nonaccrual loans
With a related ACL	2,183	1,446
Without a related ACL	0	692
Total	2,183	2,138
Total troubled debt restructured loans accruing interest	6,596	7,860
Consumer
Credit risk profile based on nonaccrual loans
With a related ACL	1,588	1,845
Without a related ACL	0	0
Total	1,588	1,845
Total troubled debt restructured loans accruing interest	50	52
Residential 1-4 family \| Real estate
Credit risk profile based on nonaccrual loans
With a related ACL	4,198	16,045
Without a related ACL	2,981	3,703
Total	7,179	19,748
Total troubled debt restructured loans accruing interest	8,821	6,949
Commercial real estate \| Real estate
Credit risk profile based on nonaccrual loans
With a related ACL	0	14,104
Without a related ACL	0	1,221
Total	0	15,325
Total troubled debt restructured loans accruing interest	9,477	3,055
Home equity line of credit \| Real estate
Credit risk profile based on nonaccrual loans
With a related ACL	3,654	4,227
Without a related ACL	1,442	1,294
Total	5,096	5,521
Total troubled debt restructured loans accruing interest	4,404	6,021
Residential land \| Real estate
Credit risk profile based on nonaccrual loans
With a related ACL	420	97
Without a related ACL	0	300
Total	420	397
Total troubled debt restructured loans accruing interest	782	980
Commercial construction \| Real estate
Credit risk profile based on nonaccrual loans
With a related ACL	0	0
Without a related ACL	0	0
Total	0	0
Total troubled debt restructured loans accruing interest	0	0
Residential construction \| Real estate
Credit risk profile based on nonaccrual loans
With a related ACL	0	0
Without a related ACL	0	0
Total	0	0
Total troubled debt restructured loans accruing interest	$ 0	$ 0

Financing Receivable, Nonaccrual, With Allowance

No definition available.

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- Definition

Amount, after troubled debt restructuring, of modified financing receivable.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 33
-URI https://asc.fasb.org/extlink&oid=123577603&loc=SL6953676-111524

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- Definition

Amortized cost of financing receivable on nonaccrual status with no allowance for credit loss. Excludes net investment in lease.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 326
-SubTopic 20
-Section 50
-Paragraph 16
-Subparagraph (d)
-URI https://asc.fasb.org/extlink&oid=124255953&loc=SL82919258-210447

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- Definition

Amortized cost of financing receivable on nonaccrual status. Excludes net investment in lease.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 7
-Subparagraph (a)
-URI https://asc.fasb.org/extlink&oid=123577603&loc=d3e5111-111524

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 326
-SubTopic 20
-Section 50
-Paragraph 16
-Subparagraph (a)
-URI https://asc.fasb.org/extlink&oid=124255953&loc=SL82919258-210447

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Publisher SEC
-Name Regulation S-K (SK)
-Number 229
-Section 1405
-Paragraph (a)
-Subparagraph (3)

Reference 4: http://www.xbrl.org/2003/role/disclosureRef
-Publisher SEC
-Name Regulation S-K (SK)
-Number 229
-Section 1405
-Paragraph (a)
-Subparagraph (2)

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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.

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