XML 70 R60.htm IDEA: XBRL DOCUMENT
v3.21.2

Balance Sheet Offsetting - Fair Value of the Related Collateral Pledged Against Repurchase Agreements (Details) - USD ($) $ in Thousands | Sep. 30, 2021 | Dec. 31, 2020
--- | --- | ---
Securities Sold Under Agreements to Repurchase |  |
Securities Sold under Agreements to Repurchase | $ 450,490 | $ 600,590
Debt Securities Issued by States and Political Subdivisions |  |
Securities Sold Under Agreements to Repurchase |  |
Securities Sold under Agreements to Repurchase | 490 | 590
Residential - Government Agencies |  |
Securities Sold Under Agreements to Repurchase |  |
Securities Sold under Agreements to Repurchase | 57,063 | 103,809
Residential - U.S. Government-Sponsored Enterprises |  |
Securities Sold Under Agreements to Repurchase |  |
Securities Sold under Agreements to Repurchase | 392,937 | 496,191
Maturity Up To 90 Days |  |
Securities Sold Under Agreements to Repurchase |  |
Securities Sold under Agreements to Repurchase | 0 | 100
Maturity Up To 90 Days | Debt Securities Issued by States and Political Subdivisions |  |
Securities Sold Under Agreements to Repurchase |  |
Securities Sold under Agreements to Repurchase | 0 | 100
Maturity Up To 90 Days | Residential - Government Agencies |  |
Securities Sold Under Agreements to Repurchase |  |
Securities Sold under Agreements to Repurchase | 0 | 0
Maturity Up To 90 Days | Residential - U.S. Government-Sponsored Enterprises |  |
Securities Sold Under Agreements to Repurchase |  |
Securities Sold under Agreements to Repurchase | 0 | 0
Maturity 91 To 365 Days |  |
Securities Sold Under Agreements to Repurchase |  |
Securities Sold under Agreements to Repurchase | 0 | 0
Maturity 91 To 365 Days | Debt Securities Issued by States and Political Subdivisions |  |
Securities Sold Under Agreements to Repurchase |  |
Securities Sold under Agreements to Repurchase | 0 | 0
Maturity 91 To 365 Days | Residential - Government Agencies |  |
Securities Sold Under Agreements to Repurchase |  |
Securities Sold under Agreements to Repurchase | 0 | 0
Maturity 91 To 365 Days | Residential - U.S. Government-Sponsored Enterprises |  |
Securities Sold Under Agreements to Repurchase |  |
Securities Sold under Agreements to Repurchase | 0 | 0
Maturity 1 To 3 Years |  |
Securities Sold Under Agreements to Repurchase |  |
Securities Sold under Agreements to Repurchase | 275,000 | 25,000
Maturity 1 To 3 Years | Debt Securities Issued by States and Political Subdivisions |  |
Securities Sold Under Agreements to Repurchase |  |
Securities Sold under Agreements to Repurchase | 0 | 0
Maturity 1 To 3 Years | Residential - Government Agencies |  |
Securities Sold Under Agreements to Repurchase |  |
Securities Sold under Agreements to Repurchase | 43,461 | 20,210
Maturity 1 To 3 Years | Residential - U.S. Government-Sponsored Enterprises |  |
Securities Sold Under Agreements to Repurchase |  |
Securities Sold under Agreements to Repurchase | 231,539 | 4,790
Maturity After 3 Years |  |
Securities Sold Under Agreements to Repurchase |  |
Securities Sold under Agreements to Repurchase | 175,490 | 575,490
Maturity After 3 Years | Debt Securities Issued by States and Political Subdivisions |  |
Securities Sold Under Agreements to Repurchase |  |
Securities Sold under Agreements to Repurchase | 490 | 490
Maturity After 3 Years | Residential - Government Agencies |  |
Securities Sold Under Agreements to Repurchase |  |
Securities Sold under Agreements to Repurchase | 13,602 | 83,599
Maturity After 3 Years | Residential - U.S. Government-Sponsored Enterprises |  |
Securities Sold Under Agreements to Repurchase |  |
Securities Sold under Agreements to Repurchase | $ 161,398 | $ 491,401

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_AssetsSoldUnderAgreementsToRepurchaseLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
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://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 20 -Section 55 -Paragraph 7 -URI http://asc.fasb.org/extlink&oid=99393222&loc=SL20226000-175313 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 20 -Section 50 -Paragraph 3 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=51824906&loc=SL20225862-175312 + Details
Name: | us-gaap_SecuritiesSoldUnderAgreementsToRepurchaseGross
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Details
Name: | us-gaap_FinancialInstrumentAxis=us-gaap_USStatesAndPoliticalSubdivisionsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancialInstrumentAxis=boh_ResidentialMortgageBackedSecuritiesIssuedByUSGovernmentAgenciesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancialInstrumentAxis=boh_ResidentialMortgageBackedSecuritiesIssuedByUSGovernmentSponsoredEnterprisesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_AssetsSoldUnderAgreementsToRepurchaseMaturityPeriodsAxis=boh_MaturityUpTo90DaysMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_AssetsSoldUnderAgreementsToRepurchaseMaturityPeriodsAxis=us-gaap_MaturityOver90DaysMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_AssetsSoldUnderAgreementsToRepurchaseMaturityPeriodsAxis=boh_Maturity1To3YearsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_AssetsSoldUnderAgreementsToRepurchaseMaturityPeriodsAxis=boh_MaturityAfter3YearsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |