XML 70 R61.htm IDEA: XBRL DOCUMENT
v3.22.1

FAIR VALUE OF FINANCIAL INSTRUMENTS (Valuation Technique) (Details) - Fair Value, Inputs, Level 3 [Member] | 3 Months Ended | 12 Months Ended
--- | --- | ---
Mar. 31, 2022 | Dec. 31, 2021
Junior Subordinated Debt [Member] | Weighted Average [Member] | Discounted cash flows [Member] |  |
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items] |  |
Fair Value Input, Discount Rate | 4.46% | 3.71%
Corporate Bonds (TPS securities) [Member] | Weighted Average [Member] | Discounted cash flows [Member] |  |
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items] |  |
Fair Value Input, Discount Rate | 4.46% | 3.71%
Impaired Loans [Member] | Minimum [Member] | discount to appraised value [Member] |  |
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items] |  |
fair value inputs, discount to appraised value | 9.00% | 8.50%
Impaired Loans [Member] | Maximum [Member] | discount to appraised value [Member] |  |
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items] |  |
fair value inputs, discount to appraised value | 9.50% | 20.00%
Real Estate Owned [Member] | Weighted Average [Member] | discount to appraised value [Member] |  |
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items] |  |
fair value inputs, discount to appraised value | 71.19% | 60.91%
Interest Rate Lock Commitments [Member] | Weighted Average [Member] | Valuation, Pricing Model [Member] |  |
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items] |  |
Fair Value Input, Pull-Through Rate | 89.26% | 86.64%
SBA Servicing Rights | Weighted Average [Member] | Discounted cash flows [Member] |  |
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items] |  |
Fair Value Input, Constant Prepayment Rate | 8.76% | 12.25%

X
- Definition Fair Value Input, Constant Prepayment Rate + References No definition available. + Details
Name: | banr_FairValueInputConstantPrepaymentRate
Namespace Prefix: | banr_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Fair Value Input, Discount Rate + References No definition available. + Details
Name: | banr_FairValueInputDiscountRate
Namespace Prefix: | banr_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Fair Value Input, Pull-Through Rate + References No definition available. + Details
Name: | banr_FairValueInputPullThroughRate
Namespace Prefix: | banr_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition [Line Items] for Fair Value Inputs, Assets and Liabilities, Quantitative Information [Table] + References No definition available. + Details
Name: | banr_FairValueInputsAssetsAndLiabilitiesQuantitativeInformationLineItems
Namespace Prefix: | banr_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition fair value inputs, discount to appraised value + References No definition available. + Details
Name: | banr_Fairvalueinputsdiscounttoappraisedvalue
Namespace Prefix: | banr_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_FairValueByLiabilityClassAxis=us-gaap_JuniorSubordinatedDebtMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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

X
- Details
Name: | us-gaap_ValuationTechniqueAxis=us-gaap_IncomeApproachValuationTechniqueMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FairValueByFairValueHierarchyLevelAxis=us-gaap_FairValueInputsLevel3Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FairValueByAssetClassAxis=banr_TrustPreferredSecuritiesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FairValueByAssetClassAxis=banr_ImpairedLoansMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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

X
- Details
Name: | us-gaap_ValuationTechniqueAxis=banr_DiscounttoappraisedvalueMember
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_FairValueByAssetClassAxis=banr_RealEstateOwnedMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FairValueByAssetClassAxis=us-gaap_InterestRateLockCommitmentsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_ValuationTechniqueAxis=banr_ValuationPricingModelMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FairValueByAssetClassAxis=banr_SBAServicingRightsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |