XML 74 R64.htm IDEA: XBRL DOCUMENT
v3.25.1

COMMITMENTS AND CONTINGENCIES (Fair value, off balance sheet risks, limited partnerships, commitment) (Details) - USD ($) $ in Thousands | Mar. 31, 2025 | Dec. 31, 2024
--- | --- | ---
Not Funded |  |
Schedule of Fair Value, Off-Balance Sheet Risks, Limited Partnerships, Commitment) [Line Items] |  |
Fair Value Disclosure, Off Balance Sheet Risk, Limited Partnership Investment, Commitment | $ 13,292 | $ 14,706

X
- Definition Fair Value Disclosure, Off Balance Sheet Risk, Limited Partnership Investment, Commitment + References No definition available. + Details
Name: | banr_FairValueDisclosureOffBalanceSheetRiskLimitedPartnershipInvestmentCommitment
Namespace Prefix: | banr_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Schedule of Fair Value, Off-Balance Sheet Risks, Limited Partnerships, Commitment) [Line Items] + References No definition available. + Details
Name: | banr_ScheduleOfFairValueOffBalanceSheetRisksLimitedPartnershipsCommitmentLineItems
Namespace Prefix: | banr_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | banr_FundingStatusAxis=banr_NotFundedMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |