XML 101 R91.htm IDEA: XBRL DOCUMENT
v3.24.0.1

Securities Sold Under Agreements to Repurchase - Details of Securities Sold Under Agreements to Repurchase (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2023 | Dec. 31, 2022
Short Term Debt [Line Items] |  |
Amounts Outstanding | $ 150,490 | $ 725,490
Weighted-Average Interest Rate | 3.79% | 2.96%
Weighted-Avg Maturity (in years) | 5 years 2 months 12 days | 3 years 8 months 12 days
Private Institutions |  |
Short Term Debt [Line Items] |  |
Amounts Outstanding | $ 150,000 | $ 725,000
Weighted-Average Interest Rate | 3.80% | 2.97%
Weighted-Avg Maturity (in years) | 5 years 2 months 12 days | 3 years 8 months 12 days
Government Entities |  |
Short Term Debt [Line Items] |  |
Amounts Outstanding | $ 490 | $ 490
Weighted-Average Interest Rate | 1.55% | 1.55%
Weighted-Avg Maturity (in years) | 10 months 24 days | 1 year 10 months 24 days

X
- Definition Repurchase agreement counterparty weighted average interest rate. + References No definition available. + Details
Name: | boh_RepurchaseAgreementCounterpartyWeightedAverageInterestRate
Namespace Prefix: | boh_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Weighted average maturity (weighted by amount of the agreement) of repurchase agreements with the counterparty, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 235 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08(m)(1)(iii)) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480678/235-10-S99-1 + Details
Name: | us-gaap_RepurchaseAgreementCounterpartyWeightedAverageMaturityOfAgreements1
Namespace Prefix: | us-gaap_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount, before effects of master netting arrangements, of funds outstanding borrowed in the form of a security repurchase agreement between the entity and another party for the sale and repurchase of identical or substantially the same securities at a date certain for a specified price. Includes liabilities elected not to be offset. Excludes liabilities not subject to a master netting arrangement. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 210 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 3 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org//1943274/2147483466/210-20-50-3 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 210 -SubTopic 20 -Name Accounting Standards Codification -Section 55 -Paragraph 7 -Publisher FASB -URI https://asc.fasb.org//1943274/2147483444/210-20-55-7 + Details
Name: | us-gaap_SecuritiesSoldUnderAgreementsToRepurchaseGross
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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_ShortTermDebtLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | srt_CounterpartyNameAxis=boh_PrivateInstitutionsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_CounterpartyNameAxis=boh_GovernmentEntitiesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |