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: