XML 72 R62.htm IDEA: XBRL DOCUMENT
v3.25.2

COMMITMENTS AND CONTINGENCIES (Commitments Without Recorded Liability) (Details) - USD ($) | 3 Months Ended | 6 Months Ended |
--- | --- | --- | ---
Jun. 30, 2025 | Jun. 30, 2025 | Jun. 30, 2024 | Dec. 31, 2024
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items] |  |  |  |
Reserve for Unfunded Loan Commitments | $ 12,800,000 | $ 12,800,000 |  | $ 13,600,000
Mortgage loan applications, day interest rate is locked |  | 45 days |  |
Minimum [Member] |  |  |  |
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items] |  |  |  |
Mortgage loan applications, day interest rate is locked |  | 30 days |  |
Maximum [Member] |  |  |  |
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items] |  |  |  |
Mortgage loan applications, day interest rate is locked |  | 60 days |  |
Commitments to Extend Credit [Member] |  |  |  |
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items] |  |  |  |
Contract or Notional Amount | 3,785,256,000 | $ 3,785,256,000 |  | 3,857,782,000
Financial Standby Letter of Credit [Member] |  |  |  |
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items] |  |  |  |
Contract or Notional Amount | 20,012,000 | 20,012,000 |  | 28,287,000
Risk Participation Agreement [Member] |  |  |  |
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items] |  |  |  |
Contract or Notional Amount | 42,243,000 | 42,243,000 |  | 43,913,000
Loans Held for Sale Origination Commitments [Member] |  |  |  |
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items] |  |  |  |
Contract or Notional Amount | 54,551,000 | 54,551,000 |  | 35,512,000
Commitments to Sell Loans Secured by one to four Residential Properties [Member] |  |  |  |
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items] |  |  |  |
Contract or Notional Amount | 40,355,000 | 40,355,000 |  | 17,963,000
Counterparty default losses on forward contracts | 0 |  | $ 0 |
Commitments to Sell Mortgage Backed Securities [Member] |  |  |  |
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items] |  |  |  |
Contract or Notional Amount | $ 41,000,000 | $ 41,000,000 |  | $ 37,500,000

X
- Definition Mortgage Loan Applications, Day Interest Rate is Locked + References No definition available. + Details
Name: | banr_MortgageLoanApplicationsDayInterestRateIsLocked
Namespace Prefix: | banr_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Definition Unfunded Loan Commitments + References No definition available. + Details
Name: | banr_ReserveforUnfundedLoanCommitments
Namespace Prefix: | banr_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition The face amount of financial liabilities, which are not recognized in the financial statements (off-balance sheet) because they fail to meet some other criterion for recognition. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 825 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 11 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482907/825-10-50-11 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 942 -SubTopic 825 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147478898/942-825-50-1 + Details
Name: | us-gaap_FairValueDisclosureOffbalanceSheetRisksFaceAmountLiability
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 Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 825 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 11 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482907/825-10-50-11 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 942 -SubTopic 825 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147478898/942-825-50-1 + Details
Name: | us-gaap_FairValueOffBalanceSheetRisksDisclosureInformationLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The amount of the loss on termination of a contract for default. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 912 -SubTopic 20 -Name Accounting Standards Codification -Section 45 -Paragraph 5 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482291/912-20-45-5 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 912 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482269/912-20-50-1 + Details
Name: | us-gaap_LossOnContractTerminationForDefault
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Details
Name: | srt_RangeAxis=srt_MinimumMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_RangeAxis=srt_MaximumMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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

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

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

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

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

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