$BANR
BANNER CORP Stock $banr

$banr Overview Financials Valuation SEC Filings Company Website

2021 Q4 Form 10-K Financial Statement

#000094667322000004 Filed on February 24, 2022

Income Statement

Concept	2021 Q4	2021	2020 Q4
Revenue
YoY Change
Cost Of Revenue
YoY Change
Gross Profit
YoY Change
Gross Profit Margin
Selling, General & Admin
YoY Change
% of Gross Profit
Research & Development
YoY Change
% of Gross Profit
Depreciation & Amortization	$5.800M	$17.30M	$6.200M
YoY Change	-6.45%	-4.42%	-4.62%
% of Gross Profit
Operating Expenses
YoY Change
Operating Profit		$96.42M	$23.51M
YoY Change		-2.23%	15.91%
Interest Expense		$23.61M	$7.716M
YoY Change		-37.62%	-44.56%
% of Operating Profit		24.49%	32.82%
Other Income/Expense, Net		$24.24M
YoY Change		6.71%
Pretax Income	$59.40M	$246.6M	$48.79M
YoY Change	21.75%	73.11%	15.93%
Income Tax	$9.500M	$45.55M	$9.831M
% Of Pretax Income	15.99%	18.47%	20.15%
Net Earnings	$49.93M	$201.0M	$38.96M
YoY Change	28.16%	73.42%	15.75%
Net Earnings / Revenue
Basic Earnings Per Share		$5.81	$1.11
Diluted Earnings Per Share	$1.442M	$5.76	$1.10
COMMON SHARES
Basic Shares Outstanding	34.25M shares	34.61M shares	35.16M shares
Diluted Shares Outstanding		34.92M shares

Balance Sheet

Concept	2021 Q4	2021	2020 Q4
SHORT-TERM ASSETS
Cash & Short-Term Investments
YoY Change
Cash & Equivalents	$2.134B		$1.234B
Short-Term Investments
Other Short-Term Assets
YoY Change
Inventory
Prepaid Expenses
Receivables
Other Receivables
Total Short-Term Assets
YoY Change
LONG-TERM ASSETS
Property, Plant & Equipment	$148.8M	$204.0M	$164.6M
YoY Change	-9.6%	-7.27%	-7.56%
Goodwill	$373.1M		$373.1M
YoY Change	0.0%		0.0%
Intangibles
YoY Change
Long-Term Investments
YoY Change
Other Assets	$71.00M	$71.00M	$66.00M
YoY Change	7.58%	7.58%	10.0%
Total Long-Term Assets
YoY Change
TOTAL ASSETS
Total Short-Term Assets
Total Long-Term Assets
Total Assets	$16.80B	$16.81B	$15.03B
YoY Change	11.8%	11.79%	19.26%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable
YoY Change
Accrued Expenses	$208.0M	$208.0M	$203.0M
YoY Change	2.46%	2.46%	-10.96%
Deferred Revenue
YoY Change
Short-Term Debt	$264.0M	$264.0M	$185.0M
YoY Change	42.7%	42.7%	56.78%
Long-Term Debt Due
YoY Change
Total Short-Term Liabilities	$208.0M	$208.0M	$203.0M
YoY Change	2.46%	2.46%	-10.96%
LONG-TERM LIABILITIES
Long-Term Debt	$218.0M	$218.0M	$215.0M
YoY Change	1.4%	1.4%	80.67%
Other Long-Term Liabilities	$47.00M	$47.00M	$45.00M
YoY Change	4.44%	4.44%	-2.17%
Total Long-Term Liabilities	$265.0M	$265.0M	$260.0M
YoY Change	1.92%	1.92%	57.58%
TOTAL LIABILITIES
Total Short-Term Liabilities	$208.0M	$208.0M	$203.0M
Total Long-Term Liabilities	$265.0M	$265.0M	$260.0M
Total Liabilities	$15.11B	$15.12B	$13.37B
YoY Change	13.09%	13.09%	21.39%
SHAREHOLDERS EQUITY
Retained Earnings	$390.8M		$247.3M
YoY Change	58.0%		32.37%
Common Stock
YoY Change
Preferred Stock
YoY Change
Treasury Stock (at cost)
YoY Change
Treasury Stock Shares
Shareholders Equity	$1.690B	$1.690B	$1.666B
YoY Change
Total Liabilities & Shareholders Equity	$16.80B	$16.81B	$15.03B
YoY Change	11.8%	11.79%	19.26%

Cashflow Statement

Concept	2021 Q4	2021	2020 Q4
OPERATING ACTIVITIES
Net Income	$49.93M	$201.0M	$38.96M
YoY Change	28.16%	73.42%	15.75%
Depreciation, Depletion And Amortization	$5.800M	$17.30M	$6.200M
YoY Change	-6.45%	-4.42%	-4.62%
Cash From Operating Activities	-$28.10M	$301.6M	-$12.80M
YoY Change	119.53%	140.52%	-115.92%
INVESTING ACTIVITIES
Capital Expenditures	-$4.100M	$10.49M	-$2.900M
YoY Change	41.38%	-18.04%	-63.75%
Acquisitions
YoY Change
Other Investing Activities	-$191.3M	-$2.355M	$199.0M
YoY Change	-196.13%	-54.69%	-284.6%
Cash From Investing Activities	-$195.4M	-$1.015B	$196.1M
YoY Change	-199.64%	-30.19%	-269.34%
FINANCING ACTIVITIES
Cash Dividend Paid		$57.62M
YoY Change		-38.75%
Common Stock Issuance & Retirement, Net		$56.53M
YoY Change		77.9%
Debt Paid & Issued, Net
YoY Change
Cash From Financing Activities	157.4M	$1.614B	345.3M
YoY Change	-54.42%	-28.45%	1746.52%
NET CHANGE
Cash From Operating Activities	-28.10M	$301.6M	-12.80M
Cash From Investing Activities	-195.4M	-$1.015B	196.1M
Cash From Financing Activities	157.4M	$1.614B	345.3M
Net Change In Cash	-66.10M	$900.1M	528.6M
YoY Change	-112.5%	-2.84%	-3265.27%
FREE CASH FLOW
Cash From Operating Activities	-$28.10M	$301.6M	-$12.80M
Capital Expenditures	-$4.100M	$10.49M	-$2.900M
Free Cash Flow	-$24.00M	$291.1M	-$9.900M
YoY Change	142.42%	158.55%	-111.2%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value	Unit
CY2021	dei	Amendment Flag AmendmentFlag	false
CY2021	dei	Entity Central Index Key EntityCentralIndexKey	0000946673
CY2021	dei	Entity Address Postal Zip Code EntityAddressPostalZipCode	99362
CY2021	dei	City Area Code CityAreaCode	509
CY2021	dei	Local Phone Number LocalPhoneNumber	527-3636
CY2021	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2021
CY2021	dei	Document Fiscal Period Focus DocumentFiscalPeriodFocus	FY
CY2021	dei	Document Type DocumentType	10-K
CY2021	dei	Document Annual Report DocumentAnnualReport	true
CY2021	dei	Document Period End Date DocumentPeriodEndDate	2021-12-31
CY2021	dei	Current Fiscal Year End Date CurrentFiscalYearEndDate	--12-31
CY2021	dei	Document Transition Report DocumentTransitionReport	false
CY2021	dei	Entity File Number EntityFileNumber	0-26584
CY2021	dei	Entity Registrant Name EntityRegistrantName	BANNER CORPORATION
CY2021	dei	Entity Incorporation State Country Code EntityIncorporationStateCountryCode	WA
CY2021	dei	Entity Tax Identification Number EntityTaxIdentificationNumber	91-1691604
CY2021	dei	Entity Address Address Line1 EntityAddressAddressLine1	10 South First Avenue
CY2021	dei	Entity Address City Or Town EntityAddressCityOrTown	Walla Walla
CY2021	dei	Entity Address State Or Province EntityAddressStateOrProvince	WA
CY2021	dei	Security12b Title Security12bTitle	Common Stock, par value $.01 per share
CY2021	dei	Trading Symbol TradingSymbol	BANR
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CY2021	dei	Entity Voluntary Filers EntityVoluntaryFilers	No
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CY2021	dei	Entity Interactive Data Current EntityInteractiveDataCurrent	Yes
CY2021	dei	Entity Filer Category EntityFilerCategory	Large Accelerated Filer
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CY2019	us-gaap	Debt And Equity Securities Gain Loss DebtAndEquitySecuritiesGainLoss	33000	USD
CY2021	us-gaap	Increase Decrease In Financial Instruments Used In Operating Activities IncreaseDecreaseInFinancialInstrumentsUsedInOperatingActivities	4616000	USD
CY2020	us-gaap	Increase Decrease In Financial Instruments Used In Operating Activities IncreaseDecreaseInFinancialInstrumentsUsedInOperatingActivities	-656000	USD
CY2020	us-gaap	Other Operating Income OtherOperatingIncome	98260000	USD
CY2019	us-gaap	Other Operating Income OtherOperatingIncome	82116000	USD
CY2021	us-gaap	Debt And Equity Securities Gain Loss DebtAndEquitySecuritiesGainLoss	482000	USD
CY2020	us-gaap	Debt And Equity Securities Gain Loss DebtAndEquitySecuritiesGainLoss	1012000	USD
CY2019	us-gaap	Increase Decrease In Financial Instruments Used In Operating Activities IncreaseDecreaseInFinancialInstrumentsUsedInOperatingActivities	-208000	USD
CY2021	us-gaap	Operating Income Loss OperatingIncomeLoss	96416000	USD
CY2020	us-gaap	Operating Income Loss OperatingIncomeLoss	98616000	USD
CY2019	us-gaap	Operating Income Loss OperatingIncomeLoss	81941000	USD
CY2021	us-gaap	Labor And Related Expense LaborAndRelatedExpense	244351000	USD
CY2020	us-gaap	Labor And Related Expense LaborAndRelatedExpense	245400000	USD
CY2019	us-gaap	Labor And Related Expense LaborAndRelatedExpense	226409000	USD
CY2021	banr	Capitalized Loan Origination Costs CapitalizedLoanOriginationCosts	34401000	USD
CY2020	banr	Capitalized Loan Origination Costs CapitalizedLoanOriginationCosts	34848000	USD
CY2019	banr	Capitalized Loan Origination Costs CapitalizedLoanOriginationCosts	28934000	USD
CY2021	us-gaap	Occupancy Net OccupancyNet	52850000	USD
CY2020	us-gaap	Occupancy Net OccupancyNet	53362000	USD
CY2019	us-gaap	Occupancy Net OccupancyNet	52390000	USD
CY2021	us-gaap	Information Technology And Data Processing InformationTechnologyAndDataProcessing	24356000	USD
CY2020	us-gaap	Information Technology And Data Processing InformationTechnologyAndDataProcessing	24386000	USD
CY2019	us-gaap	Information Technology And Data Processing InformationTechnologyAndDataProcessing	22458000	USD
CY2021	banr	Payment And Card Processing Expenses PaymentAndCardProcessingExpenses	20544000	USD
CY2020	banr	Payment And Card Processing Expenses PaymentAndCardProcessingExpenses	16095000	USD
CY2019	banr	Payment And Card Processing Expenses PaymentAndCardProcessingExpenses	16993000	USD
CY2021	us-gaap	Professional And Contract Services Expense ProfessionalAndContractServicesExpense	22274000	USD
CY2020	us-gaap	Professional And Contract Services Expense ProfessionalAndContractServicesExpense	12093000	USD
CY2019	us-gaap	Professional And Contract Services Expense ProfessionalAndContractServicesExpense	9736000	USD
CY2021	us-gaap	Marketing And Advertising Expense MarketingAndAdvertisingExpense	6036000	USD
CY2020	us-gaap	Marketing And Advertising Expense MarketingAndAdvertisingExpense	6412000	USD
CY2019	us-gaap	Marketing And Advertising Expense MarketingAndAdvertisingExpense	7836000	USD
CY2021	us-gaap	Federal Deposit Insurance Corporation Premium Expense FederalDepositInsuranceCorporationPremiumExpense	5583000	USD
CY2020	us-gaap	Federal Deposit Insurance Corporation Premium Expense FederalDepositInsuranceCorporationPremiumExpense	6516000	USD
CY2019	us-gaap	Federal Deposit Insurance Corporation Premium Expense FederalDepositInsuranceCorporationPremiumExpense	2840000	USD
CY2021	us-gaap	Taxes Other TaxesOther	4343000	USD
CY2020	us-gaap	Taxes Other TaxesOther	4355000	USD
CY2019	us-gaap	Taxes Other TaxesOther	3880000	USD
CY2021	us-gaap	Other Revenue Expense From Real Estate Operations OtherRevenueExpenseFromRealEstateOperations	22000	USD
CY2020	us-gaap	Other Revenue Expense From Real Estate Operations OtherRevenueExpenseFromRealEstateOperations	190000	USD
CY2019	us-gaap	Other Revenue Expense From Real Estate Operations OtherRevenueExpenseFromRealEstateOperations	-303000	USD
CY2021	banr	Amortization Of Core Deposit Intangible Assets AmortizationOfCoreDepositIntangibleAssets	6571000	USD
CY2020	banr	Amortization Of Core Deposit Intangible Assets AmortizationOfCoreDepositIntangibleAssets	7732000	USD
CY2019	banr	Amortization Of Core Deposit Intangible Assets AmortizationOfCoreDepositIntangibleAssets	8151000	USD
CY2021	banr	Loss On Extinguishment Of Debt LossOnExtinguishmentOfDebt	2284000	USD
CY2020	banr	Loss On Extinguishment Of Debt LossOnExtinguishmentOfDebt	0	USD
CY2019	banr	Loss On Extinguishment Of Debt LossOnExtinguishmentOfDebt	735000	USD
CY2021	us-gaap	Other Expenses OtherExpenses	24236000	USD
CY2020	us-gaap	Other Expenses OtherExpenses	22712000	USD
CY2020	us-gaap	Business Combination Acquisition Related Costs BusinessCombinationAcquisitionRelatedCosts	2062000	USD
CY2019	us-gaap	Business Combination Acquisition Related Costs BusinessCombinationAcquisitionRelatedCosts	7544000	USD
CY2019	us-gaap	Other Expenses OtherExpenses	27387000	USD
CY2021	banr	Noninterest Operating Expense Before Covid19and Acquisition Related Costs NoninterestOperatingExpenseBeforeCOVID19andAcquisitionRelatedCosts	379005000	USD
CY2020	banr	Noninterest Operating Expense Before Covid19and Acquisition Related Costs NoninterestOperatingExpenseBeforeCOVID19andAcquisitionRelatedCosts	364025000	USD
CY2019	banr	Noninterest Operating Expense Before Covid19and Acquisition Related Costs NoninterestOperatingExpenseBeforeCOVID19andAcquisitionRelatedCosts	350184000	USD
CY2021	banr	Covid19 COVID19	436000	USD
CY2020	banr	Covid19 COVID19	3502000	USD
CY2019	banr	Covid19 COVID19	0	USD
CY2021	us-gaap	Business Combination Acquisition Related Costs BusinessCombinationAcquisitionRelatedCosts	660000	USD
CY2021	us-gaap	Noninterest Expense NoninterestExpense	380101000	USD
CY2020	us-gaap	Noninterest Expense NoninterestExpense	369589000	USD
CY2019	us-gaap	Noninterest Expense NoninterestExpense	357728000	USD
CY2021	us-gaap	Income Loss From Continuing Operations Before Income Taxes Domestic IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic	246594000	USD
CY2020	us-gaap	Income Loss From Continuing Operations Before Income Taxes Domestic IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic	142453000	USD
CY2019	us-gaap	Income Loss From Continuing Operations Before Income Taxes Domestic IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic	183132000	USD
CY2021	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	45546000	USD
CY2020	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	26525000	USD
CY2019	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	36854000	USD
CY2021	us-gaap	Net Income Loss NetIncomeLoss	201048000	USD
CY2020	us-gaap	Net Income Loss NetIncomeLoss	115928000	USD
CY2019	us-gaap	Net Income Loss NetIncomeLoss	146278000	USD
CY2021	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	5.81
CY2020	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	3.29
CY2019	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	4.20
CY2021	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	5.76
CY2020	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	3.26
CY2019	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	4.18
CY2021	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	1.64
CY2020	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	1.23
CY2019	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	2.64
CY2021	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	34610056	shares
CY2020	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	35264252	shares
CY2019	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	34868434	shares
CY2021	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	34919188	shares
CY2020	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	35528848	shares
CY2019	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	34967684	shares
CY2021	us-gaap	Net Income Loss NetIncomeLoss	201048000	USD
CY2020	us-gaap	Net Income Loss NetIncomeLoss	115928000	USD
CY2019	us-gaap	Net Income Loss NetIncomeLoss	146278000	USD
CY2021	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Before Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodBeforeTax	-80073000	USD
CY2020	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Before Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodBeforeTax	45247000	USD
CY2019	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Before Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodBeforeTax	33843000	USD
CY2021	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax	-19217000	USD
CY2020	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax	10860000	USD
CY2019	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax	8122000	USD
CY2021	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Before Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesBeforeTax	498000	USD
CY2020	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Before Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesBeforeTax	454000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Before Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesBeforeTax	34000	USD
CY2021	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesTax	120000	USD
CY2020	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesTax	109000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesTax	8000	USD
CY2021	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification Before Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationBeforeTax	-1261000	USD
CY2020	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification Before Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationBeforeTax	0	USD
CY2019	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification Before Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationBeforeTax	0	USD
CY2021	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationTax	-302000	USD
CY2020	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationTax	0	USD
CY2019	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationTax	0	USD
CY2021	us-gaap	Other Comprehensive Income Loss Financial Liability Fair Value Option Before Tax After Reclassification Adjustment OtherComprehensiveIncomeLossFinancialLiabilityFairValueOptionBeforeTaxAfterReclassificationAdjustment	-10419000	USD
CY2020	us-gaap	Other Comprehensive Income Loss Financial Liability Fair Value Option Before Tax After Reclassification Adjustment OtherComprehensiveIncomeLossFinancialLiabilityFairValueOptionBeforeTaxAfterReclassificationAdjustment	2330000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Financial Liability Fair Value Option Before Tax After Reclassification Adjustment OtherComprehensiveIncomeLossFinancialLiabilityFairValueOptionBeforeTaxAfterReclassificationAdjustment	601000	USD
CY2021	banr	Other Comprehensive Income Loss Change In Fair Value Of Junior Subordinated Debenturestax OtherComprehensiveIncomeLossChangeInFairValueOfJuniorSubordinatedDebenturestax	-2501000	USD
CY2020	banr	Other Comprehensive Income Loss Change In Fair Value Of Junior Subordinated Debenturestax OtherComprehensiveIncomeLossChangeInFairValueOfJuniorSubordinatedDebenturestax	559000	USD
CY2019	banr	Other Comprehensive Income Loss Change In Fair Value Of Junior Subordinated Debenturestax OtherComprehensiveIncomeLossChangeInFairValueOfJuniorSubordinatedDebenturestax	144000	USD
CY2021	banr	Other Comprehensive Income Loss Reclassification Of Fair Value Junior Subordinated Debentures Redeemed Before Tax OtherComprehensiveIncomeLossReclassificationOfFairValueJuniorSubordinatedDebenturesRedeemedBeforeTax	1613000	USD
CY2020	banr	Other Comprehensive Income Loss Reclassification Of Fair Value Junior Subordinated Debentures Redeemed Before Tax OtherComprehensiveIncomeLossReclassificationOfFairValueJuniorSubordinatedDebenturesRedeemedBeforeTax	0	USD
CY2019	banr	Other Comprehensive Income Loss Reclassification Of Fair Value Junior Subordinated Debentures Redeemed Before Tax OtherComprehensiveIncomeLossReclassificationOfFairValueJuniorSubordinatedDebenturesRedeemedBeforeTax	0	USD
CY2021	banr	Other Comprehensive Income Loss Reclassification Of Fair Value Junior Subordinated Debentures Redeemed Tax OtherComprehensiveIncomeLossReclassificationOfFairValueJuniorSubordinatedDebenturesRedeemedTax	387000	USD
CY2020	banr	Other Comprehensive Income Loss Reclassification Of Fair Value Junior Subordinated Debentures Redeemed Tax OtherComprehensiveIncomeLossReclassificationOfFairValueJuniorSubordinatedDebenturesRedeemedTax	0	USD
CY2019	banr	Other Comprehensive Income Loss Reclassification Of Fair Value Junior Subordinated Debentures Redeemed Tax OtherComprehensiveIncomeLossReclassificationOfFairValueJuniorSubordinatedDebenturesRedeemedTax	0	USD
CY2021	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-68885000	USD
CY2020	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	35813000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	26152000	USD
CY2021	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	132163000	USD
CY2020	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	151741000	USD
CY2019	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	172430000	USD
CY2018Q4	us-gaap	Stockholders Equity StockholdersEquity	1478595000	USD
CY2019	us-gaap	Net Income Loss NetIncomeLoss	146278000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax	26152000	USD
CY2019	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	2.64
CY2019	us-gaap	Dividends Common Stock DividendsCommonStock	93495000	USD
CY2019	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	53922000	USD
CY2019	us-gaap	Adjustments To Additional Paid In Capital Share Based Compensation Restricted Stock Units Requisite Service Period Recognition AdjustmentsToAdditionalPaidInCapitalShareBasedCompensationRestrictedStockUnitsRequisiteServicePeriodRecognition	5226000	USD
CY2018Q4	us-gaap	Stock Issued During Period Value Acquisitions StockIssuedDuringPeriodValueAcquisitions	85200000	USD
CY2018Q4	us-gaap	Stock Issued During Period Value Acquisitions StockIssuedDuringPeriodValueAcquisitions	85200000	USD
CY2019Q4	us-gaap	Stockholders Equity StockholdersEquity	1594034000	USD
CY2019Q4	us-gaap	Stockholders Equity StockholdersEquity	1594034000	USD
CY2020	banr	Cumulativeeffect Accounting Standard Update Adopted CumulativeeffectAccountingStandardUpdateAdopted	-11215000	USD
CY2020	us-gaap	Net Income Loss NetIncomeLoss	115928000	USD
CY2020	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax	35813000	USD
CY2020	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	1.23
CY2020	us-gaap	Dividends Common Stock DividendsCommonStock	44235000	USD
CY2020	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	31775000	USD
CY2020	us-gaap	Adjustments To Additional Paid In Capital Share Based Compensation Restricted Stock Units Requisite Service Period Recognition AdjustmentsToAdditionalPaidInCapitalShareBasedCompensationRestrictedStockUnitsRequisiteServicePeriodRecognition	7714000	USD
CY2020Q4	us-gaap	Stockholders Equity StockholdersEquity	1666264000	USD
CY2020Q4	us-gaap	Stockholders Equity StockholdersEquity	1666264000	USD
CY2021	us-gaap	Net Income Loss NetIncomeLoss	201048000	USD
CY2020	us-gaap	Net Income Loss NetIncomeLoss	115928000	USD
CY2019	us-gaap	Net Income Loss NetIncomeLoss	146278000	USD
CY2021	us-gaap	Net Income Loss NetIncomeLoss	201048000	USD
CY2021	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax	-68885000	USD
CY2021	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	1.64
CY2021	us-gaap	Dividends Common Stock DividendsCommonStock	57602000	USD
CY2021	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	56528000	USD
CY2021	us-gaap	Adjustments To Additional Paid In Capital Share Based Compensation Restricted Stock Units Requisite Service Period Recognition AdjustmentsToAdditionalPaidInCapitalShareBasedCompensationRestrictedStockUnitsRequisiteServicePeriodRecognition	6030000	USD
CY2021Q4	us-gaap	Stockholders Equity StockholdersEquity	1690327000	USD
CY2021	us-gaap	Depreciation Depreciation	17345000	USD
CY2020	us-gaap	Depreciation Depreciation	18130000	USD
CY2019	us-gaap	Depreciation Depreciation	17282000	USD
CY2021	us-gaap	Increase Decrease In Deferred Revenue IncreaseDecreaseInDeferredRevenue	-38786000	USD
CY2020	us-gaap	Increase Decrease In Deferred Revenue IncreaseDecreaseInDeferredRevenue	-15040000	USD
CY2019	us-gaap	Increase Decrease In Deferred Revenue IncreaseDecreaseInDeferredRevenue	-1543000	USD
CY2021	banr	Capitalized Loan Servicing Rights Net Of Amortization CapitalizedLoanServicingRightsNetOfAmortization	-1805000	USD
CY2020	banr	Capitalized Loan Servicing Rights Net Of Amortization CapitalizedLoanServicingRightsNetOfAmortization	-894000	USD
CY2019	banr	Capitalized Loan Servicing Rights Net Of Amortization CapitalizedLoanServicingRightsNetOfAmortization	662000	USD
CY2021	banr	Amortization Of Core Deposit Intangible Assets AmortizationOfCoreDepositIntangibleAssets	6571000	USD
CY2020	banr	Amortization Of Core Deposit Intangible Assets AmortizationOfCoreDepositIntangibleAssets	7732000	USD
CY2019	banr	Amortization Of Core Deposit Intangible Assets AmortizationOfCoreDepositIntangibleAssets	8151000	USD
CY2021	us-gaap	Debt And Equity Securities Gain Loss DebtAndEquitySecuritiesGainLoss	482000	USD
CY2020	us-gaap	Debt And Equity Securities Gain Loss DebtAndEquitySecuritiesGainLoss	1012000	USD
CY2019	us-gaap	Debt And Equity Securities Gain Loss DebtAndEquitySecuritiesGainLoss	33000	USD
CY2021	us-gaap	Increase Decrease In Other Financial Instruments Used In Operating Activities IncreaseDecreaseInOtherFinancialInstrumentsUsedInOperatingActivities	4616000	USD
CY2020	us-gaap	Increase Decrease In Other Financial Instruments Used In Operating Activities IncreaseDecreaseInOtherFinancialInstrumentsUsedInOperatingActivities	-656000	USD
CY2019	us-gaap	Increase Decrease In Other Financial Instruments Used In Operating Activities IncreaseDecreaseInOtherFinancialInstrumentsUsedInOperatingActivities	-208000	USD
CY2021	us-gaap	Dividend Income Equity Securities Operating DividendIncomeEquitySecuritiesOperating	0	USD
CY2020	us-gaap	Dividend Income Equity Securities Operating DividendIncomeEquitySecuritiesOperating	353000	USD
CY2019	us-gaap	Dividend Income Equity Securities Operating DividendIncomeEquitySecuritiesOperating	0	USD
CY2021	us-gaap	Increase Decrease In Deferred Income Taxes IncreaseDecreaseInDeferredIncomeTaxes	-16357000	USD
CY2020	us-gaap	Increase Decrease In Deferred Income Taxes IncreaseDecreaseInDeferredIncomeTaxes	13963000	USD
CY2019	us-gaap	Increase Decrease In Deferred Income Taxes IncreaseDecreaseInDeferredIncomeTaxes	-7290000	USD
CY2021	us-gaap	Increase Decrease In Accrued Income Taxes Payable IncreaseDecreaseInAccruedIncomeTaxesPayable	-3643000	USD
CY2020	us-gaap	Increase Decrease In Accrued Income Taxes Payable IncreaseDecreaseInAccruedIncomeTaxesPayable	-2193000	USD
CY2019	us-gaap	Increase Decrease In Accrued Income Taxes Payable IncreaseDecreaseInAccruedIncomeTaxesPayable	607000	USD
CY2020	us-gaap	Share Based Compensation ShareBasedCompensation	9168000	USD
CY2019	us-gaap	Share Based Compensation ShareBasedCompensation	7142000	USD
CY2021	us-gaap	Life Insurance Corporate Or Bank Owned Change In Value LifeInsuranceCorporateOrBankOwnedChangeInValue	4685000	USD
CY2020	us-gaap	Life Insurance Corporate Or Bank Owned Change In Value LifeInsuranceCorporateOrBankOwnedChangeInValue	5030000	USD
CY2019	us-gaap	Life Insurance Corporate Or Bank Owned Change In Value LifeInsuranceCorporateOrBankOwnedChangeInValue	4246000	USD
CY2021	banr	Gain On Sale Of Loans Excluding Capitalized Servicing Rights GainOnSaleOfLoansExcludingCapitalizedServicingRights	26140000	USD
CY2020	banr	Gain On Sale Of Loans Excluding Capitalized Servicing Rights GainOnSaleOfLoansExcludingCapitalizedServicingRights	43304000	USD
CY2019	banr	Gain On Sale Of Loans Excluding Capitalized Servicing Rights GainOnSaleOfLoansExcludingCapitalizedServicingRights	15993000	USD
CY2021	us-gaap	Gain Loss On Sale Of Other Assets GainLossOnSaleOfOtherAssets	2305000	USD
CY2020	us-gaap	Gain Loss On Sale Of Other Assets GainLossOnSaleOfOtherAssets	-859000	USD
CY2019	us-gaap	Gain Loss On Sale Of Other Assets GainLossOnSaleOfOtherAssets	-1075000	USD
CY2021	us-gaap	Provision For Loan Losses Expensed ProvisionForLoanLossesExpensed	-33388000	USD
CY2020	us-gaap	Provision For Loan Losses Expensed ProvisionForLoanLossesExpensed	67875000	USD
CY2019	us-gaap	Provision For Loan Losses Expensed ProvisionForLoanLossesExpensed	10000000	USD
CY2021	banr	Provision For Losses On Real Estate Held For Sale ProvisionForLossesOnRealEstateHeldForSale	0	USD
CY2020	banr	Provision For Losses On Real Estate Held For Sale ProvisionForLossesOnRealEstateHeldForSale	45000	USD
CY2019	banr	Provision For Losses On Real Estate Held For Sale ProvisionForLossesOnRealEstateHeldForSale	0	USD
CY2021	banr	Loss On Extinguishment Of Debt LossOnExtinguishmentOfDebt	2284000	USD
CY2020	banr	Loss On Extinguishment Of Debt LossOnExtinguishmentOfDebt	0	USD
CY2019	banr	Loss On Extinguishment Of Debt LossOnExtinguishmentOfDebt	735000	USD
CY2021	us-gaap	Payments For Origination And Purchases Of Loans Held For Sale PaymentsForOriginationAndPurchasesOfLoansHeldForSale	1102663000	USD
CY2020	us-gaap	Payments For Origination And Purchases Of Loans Held For Sale PaymentsForOriginationAndPurchasesOfLoansHeldForSale	1461872000	USD
CY2019	us-gaap	Payments For Origination And Purchases Of Loans Held For Sale PaymentsForOriginationAndPurchasesOfLoansHeldForSale	1094237000	USD
CY2021	us-gaap	Proceeds From Sale Of Loans Held For Sale ProceedsFromSaleOfLoansHeldForSale	1276111000	USD
CY2020	us-gaap	Proceeds From Sale Of Loans Held For Sale ProceedsFromSaleOfLoansHeldForSale	1471828000	USD
CY2019	us-gaap	Proceeds From Sale Of Loans Held For Sale ProceedsFromSaleOfLoansHeldForSale	1070814000	USD
CY2021	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	-2200000	USD
CY2020	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	27559000	USD
CY2019	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	10171000	USD
CY2021	us-gaap	Increase Decrease In Other Operating Liabilities IncreaseDecreaseInOtherOperatingLiabilities	-11083000	USD
CY2020	us-gaap	Increase Decrease In Other Operating Liabilities IncreaseDecreaseInOtherOperatingLiabilities	4385000	USD
CY2019	us-gaap	Increase Decrease In Other Operating Liabilities IncreaseDecreaseInOtherOperatingLiabilities	5588000	USD
CY2021	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	301578000	USD
CY2020	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	125386000	USD
CY2019	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	149609000	USD
CY2021	us-gaap	Payments To Acquire Available For Sale Securities Debt PaymentsToAcquireAvailableForSaleSecuritiesDebt	2805251000	USD
CY2020	us-gaap	Payments To Acquire Available For Sale Securities Debt PaymentsToAcquireAvailableForSaleSecuritiesDebt	1361132000	USD
CY2019	us-gaap	Payments To Acquire Available For Sale Securities Debt PaymentsToAcquireAvailableForSaleSecuritiesDebt	277503000	USD
CY2021	us-gaap	Proceeds From Maturities Prepayments And Calls Of Available For Sale Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities	1314484000	USD
CY2020	us-gaap	Proceeds From Maturities Prepayments And Calls Of Available For Sale Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities	474876000	USD
CY2019	us-gaap	Proceeds From Maturities Prepayments And Calls Of Available For Sale Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities	321510000	USD
CY2021	us-gaap	Proceeds From Sale Of Available For Sale Securities Debt ProceedsFromSaleOfAvailableForSaleSecuritiesDebt	83663000	USD
CY2020	us-gaap	Proceeds From Sale Of Available For Sale Securities Debt ProceedsFromSaleOfAvailableForSaleSecuritiesDebt	150374000	USD
CY2019	us-gaap	Proceeds From Sale Of Available For Sale Securities Debt ProceedsFromSaleOfAvailableForSaleSecuritiesDebt	86083000	USD
CY2021	us-gaap	Payments To Acquire Held To Maturity Securities PaymentsToAcquireHeldToMaturitySecurities	135615000	USD
CY2020	us-gaap	Payments To Acquire Held To Maturity Securities PaymentsToAcquireHeldToMaturitySecurities	222094000	USD
CY2019	us-gaap	Payments To Acquire Held To Maturity Securities PaymentsToAcquireHeldToMaturitySecurities	54850000	USD
CY2021	us-gaap	Proceeds From Maturities Prepayments And Calls Of Held To Maturity Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfHeldToMaturitySecurities	32487000	USD
CY2020	us-gaap	Proceeds From Maturities Prepayments And Calls Of Held To Maturity Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfHeldToMaturitySecurities	33848000	USD
CY2019	us-gaap	Proceeds From Maturities Prepayments And Calls Of Held To Maturity Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfHeldToMaturitySecurities	50962000	USD
CY2021	us-gaap	Payments To Acquire Other Investments PaymentsToAcquireOtherInvestments	4750000	USD
CY2020	us-gaap	Payments To Acquire Other Investments PaymentsToAcquireOtherInvestments	1060000000	USD
CY2019	us-gaap	Payments To Acquire Other Investments PaymentsToAcquireOtherInvestments	0	USD
CY2021	banr	Proceeds From The Sale Of Equity Securities ProceedsFromTheSaleOfEquitySecurities	4796000	USD
CY2020	banr	Proceeds From The Sale Of Equity Securities ProceedsFromTheSaleOfEquitySecurities	1060695000	USD
CY2019	banr	Proceeds From The Sale Of Equity Securities ProceedsFromTheSaleOfEquitySecurities	0	USD
CY2021	banr	Loans Originated Netof Principal Collections LoansOriginatedNetofPrincipalCollections	795892000	USD
CY2020	banr	Loans Originated Netof Principal Collections LoansOriginatedNetofPrincipalCollections	-561338000	USD
CY2019	banr	Loans Originated Netof Principal Collections LoansOriginatedNetofPrincipalCollections	-304191000	USD
CY2021	us-gaap	Payments To Acquire Loans Receivable PaymentsToAcquireLoansReceivable	5086000	USD
CY2020	us-gaap	Payments To Acquire Loans Receivable PaymentsToAcquireLoansReceivable	2510000	USD
CY2019	us-gaap	Payments To Acquire Loans Receivable PaymentsToAcquireLoansReceivable	9798000	USD
CY2021	us-gaap	Proceeds From Sale Of Loans Held For Investment ProceedsFromSaleOfLoansHeldForInvestment	46028000	USD
CY2020	us-gaap	Proceeds From Sale Of Loans Held For Investment ProceedsFromSaleOfLoansHeldForInvestment	19469000	USD
CY2019	us-gaap	Proceeds From Sale Of Loans Held For Investment ProceedsFromSaleOfLoansHeldForInvestment	27560000	USD
CY2021	banr	Net Cash Received Paid Related To Branch Divestitures NetCashReceivedPaidRelatedToBranchDivestitures	0	USD
CY2020	banr	Net Cash Received Paid Related To Branch Divestitures NetCashReceivedPaidRelatedToBranchDivestitures	0	USD
CY2019	banr	Net Cash Received Paid Related To Branch Divestitures NetCashReceivedPaidRelatedToBranchDivestitures	26944000	USD
CY2021	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	10493000	USD
CY2020	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	12803000	USD
CY2019	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	24700000	USD
CY2021	us-gaap	Proceeds From Sale Of Property Plant And Equipment ProceedsFromSaleOfPropertyPlantAndEquipment	11759000	USD
CY2020	us-gaap	Proceeds From Sale Of Property Plant And Equipment ProceedsFromSaleOfPropertyPlantAndEquipment	8893000	USD
CY2019	us-gaap	Proceeds From Sale Of Property Plant And Equipment ProceedsFromSaleOfPropertyPlantAndEquipment	7815000	USD
CY2021	us-gaap	Proceeds From Sale Of Federal Home Loan Bank Stock ProceedsFromSaleOfFederalHomeLoanBankStock	4358000	USD
CY2020	us-gaap	Proceeds From Sale Of Federal Home Loan Bank Stock ProceedsFromSaleOfFederalHomeLoanBankStock	52169000	USD
CY2019	us-gaap	Proceeds From Sale Of Federal Home Loan Bank Stock ProceedsFromSaleOfFederalHomeLoanBankStock	175998000	USD
CY2021	us-gaap	Payments To Acquire Federal Home Loan Bank Stock PaymentsToAcquireFederalHomeLoanBankStock	0	USD
CY2020	us-gaap	Payments To Acquire Federal Home Loan Bank Stock PaymentsToAcquireFederalHomeLoanBankStock	40185000	USD
CY2019	us-gaap	Payments To Acquire Federal Home Loan Bank Stock PaymentsToAcquireFederalHomeLoanBankStock	170380000	USD
CY2021	us-gaap	Payments For Securities Purchased Under Agreements To Resell PaymentsForSecuritiesPurchasedUnderAgreementsToResell	300000000	USD
CY2020	us-gaap	Payments For Securities Purchased Under Agreements To Resell PaymentsForSecuritiesPurchasedUnderAgreementsToResell	0	USD
CY2019	us-gaap	Payments For Securities Purchased Under Agreements To Resell PaymentsForSecuritiesPurchasedUnderAgreementsToResell	0	USD
CY2021	us-gaap	Payments To Acquire Life Insurance Policies PaymentsToAcquireLifeInsurancePolicies	50053000	USD
CY2020	us-gaap	Payments To Acquire Life Insurance Policies PaymentsToAcquireLifeInsurancePolicies	83000	USD
CY2019	us-gaap	Payments To Acquire Life Insurance Policies PaymentsToAcquireLifeInsurancePolicies	75000	USD
CY2021	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	-2355000	USD
CY2020	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	-5197000	USD
CY2019	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	-1511000	USD
CY2021	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-1015426000	USD
CY2020	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-1454624000	USD
CY2019	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-143114000	USD
CY2021	us-gaap	Increase Decrease In Deposits IncreaseDecreaseInDeposits	1759638000	USD
CY2020	us-gaap	Increase Decrease In Deposits IncreaseDecreaseInDeposits	2518654000	USD
CY2019	us-gaap	Increase Decrease In Deposits IncreaseDecreaseInDeposits	272625000	USD
CY2021	us-gaap	Proceeds From Federal Home Loan Bank Advances ProceedsFromFederalHomeLoanBankAdvances	0	USD
CY2020	us-gaap	Proceeds From Federal Home Loan Bank Advances ProceedsFromFederalHomeLoanBankAdvances	0	USD
CY2019	us-gaap	Proceeds From Federal Home Loan Bank Advances ProceedsFromFederalHomeLoanBankAdvances	450000000	USD
CY2021	us-gaap	Payments For Federal Home Loan Bank Advances PaymentsForFederalHomeLoanBankAdvances	100000000	USD
CY2020	us-gaap	Payments For Federal Home Loan Bank Advances PaymentsForFederalHomeLoanBankAdvances	0	USD
CY2019	us-gaap	Payments For Federal Home Loan Bank Advances PaymentsForFederalHomeLoanBankAdvances	281150000	USD
CY2021	banr	Proceedsfrom Repaymentsof Federal Home Loan Bank Borrowings ProceedsfromRepaymentsofFederalHomeLoanBankBorrowings	0	USD
CY2020	banr	Proceedsfrom Repaymentsof Federal Home Loan Bank Borrowings ProceedsfromRepaymentsofFederalHomeLoanBankBorrowings	-300000000	USD
CY2019	banr	Proceedsfrom Repaymentsof Federal Home Loan Bank Borrowings ProceedsfromRepaymentsofFederalHomeLoanBankBorrowings	-300000000	USD
CY2021	us-gaap	Increase Decrease In Other Loans IncreaseDecreaseInOtherLoans	-79704000	USD
CY2020	us-gaap	Increase Decrease In Other Loans IncreaseDecreaseInOtherLoans	-66311000	USD
CY2019	us-gaap	Increase Decrease In Other Loans IncreaseDecreaseInOtherLoans	520000	USD
CY2021	us-gaap	Proceeds From Issuance Of Subordinated Long Term Debt ProceedsFromIssuanceOfSubordinatedLongTermDebt	0	USD
CY2020	us-gaap	Proceeds From Issuance Of Subordinated Long Term Debt ProceedsFromIssuanceOfSubordinatedLongTermDebt	98027000	USD
CY2019	us-gaap	Proceeds From Issuance Of Subordinated Long Term Debt ProceedsFromIssuanceOfSubordinatedLongTermDebt	0	USD
CY2021	us-gaap	Repayments Of Subordinated Debt RepaymentsOfSubordinatedDebt	8248000	USD
CY2020	us-gaap	Repayments Of Subordinated Debt RepaymentsOfSubordinatedDebt	0	USD
CY2019	us-gaap	Repayments Of Subordinated Debt RepaymentsOfSubordinatedDebt	0	USD
CY2021	banr	Proceeds From Redemption Of Trust Preferred Securities ProceedsFromRedemptionOfTrustPreferredSecurities	248000	USD
CY2020	banr	Proceeds From Redemption Of Trust Preferred Securities ProceedsFromRedemptionOfTrustPreferredSecurities	0	USD
CY2019	banr	Proceeds From Redemption Of Trust Preferred Securities ProceedsFromRedemptionOfTrustPreferredSecurities	0	USD
CY2021	us-gaap	Payments Of Dividends PaymentsOfDividends	57621000	USD
CY2020	us-gaap	Payments Of Dividends PaymentsOfDividends	94078000	USD
CY2019	us-gaap	Payments Of Dividends PaymentsOfDividends	56074000	USD
CY2021	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	56528000	USD
CY2020	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	31775000	USD
CY2019	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	53922000	USD
CY2021	us-gaap	Payments Related To Tax Withholding For Share Based Compensation PaymentsRelatedToTaxWithholdingForShareBasedCompensation	3228000	USD
CY2020	us-gaap	Payments Related To Tax Withholding For Share Based Compensation PaymentsRelatedToTaxWithholdingForShareBasedCompensation	1453000	USD
CY2019	us-gaap	Payments Related To Tax Withholding For Share Based Compensation PaymentsRelatedToTaxWithholdingForShareBasedCompensation	1915000	USD
CY2021	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	1613965000	USD
CY2020	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	2255686000	USD
CY2019	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	29044000	USD
CY2021	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Excluding Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseExcludingExchangeRateEffect	900117000	USD
CY2020	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Excluding Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseExcludingExchangeRateEffect	926448000	USD
CY2019	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Excluding Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseExcludingExchangeRateEffect	35539000	USD
CY2020Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	1234183000	USD
CY2019Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	307735000	USD
CY2018Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	272196000	USD
CY2021Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	2134300000	USD
CY2020Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	1234183000	USD
CY2019Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	307735000	USD
CY2021	us-gaap	Interest Paid Net InterestPaidNet	24278000	USD
CY2020	us-gaap	Interest Paid Net InterestPaidNet	40942000	USD
CY2019	us-gaap	Interest Paid Net InterestPaidNet	58239000	USD
CY2021	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	29017000	USD
CY2020	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	39672000	USD
CY2019	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	27329000	USD
CY2021	us-gaap	Transfer To Other Real Estate TransferToOtherRealEstate	512000	USD
CY2020	us-gaap	Transfer To Other Real Estate TransferToOtherRealEstate	1602000	USD
CY2019	us-gaap	Transfer To Other Real Estate TransferToOtherRealEstate	303000	USD
CY2021Q4	us-gaap	Dividends Payable Current And Noncurrent DividendsPayableCurrentAndNoncurrent	1338000	USD
CY2020Q4	us-gaap	Dividends Payable Current And Noncurrent DividendsPayableCurrentAndNoncurrent	1357000	USD
CY2019Q4	us-gaap	Dividends Payable Current And Noncurrent DividendsPayableCurrentAndNoncurrent	51199000	USD
CY2021	us-gaap	Fair Value Of Assets Acquired FairValueOfAssetsAcquired	0	USD
CY2020	us-gaap	Fair Value Of Assets Acquired FairValueOfAssetsAcquired	0	USD
CY2019	banr	Assets Disposed AssetsDisposed	426609000	USD
CY2021	us-gaap	Liabilities Assumed1 LiabilitiesAssumed1	0	USD
CY2020	us-gaap	Liabilities Assumed1 LiabilitiesAssumed1	0	USD
CY2019	banr	Liabilities Transfered LiabilitiesTransfered	373016000	USD
CY2021Q4	banr	Number Of Wholly Owned Grantor Trusts NumberOfWhollyOwnedGrantorTrusts	9	subsidiary
CY2021	us-gaap	Use Of Estimates UseOfEstimates	<div style="text-align:justify"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:9pt;font-style:italic;font-weight:700;line-height:120%">Use of Estimates:</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:9pt;font-weight:400;line-height:120%"> In the opinion of management, the accompanying Consolidated Statements of Financial Condition and related Consolidated Statements of Operations, Comprehensive Income, Changes in Shareholders’ Equity and Cash Flows reflect all adjustments (which include reclassification and normal recurring adjustments) that are necessary for a fair presentation in conformity with GAAP. The preparation of financial statements in conformity with GAAP requires management to make estimates and assumptions that affect amounts reported in the financial statements.</span></div><div style="text-align:justify"><span><br/></span></div><div style="text-align:justify"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:9pt;font-weight:400;line-height:120%">Various elements of the Company’s accounting policies, by their nature, are inherently subject to estimation techniques, valuation assumptions and other subjective assessments. In particular, management has identified several accounting policies that, due to the judgments, estimates and assumptions inherent in those policies, are critical to an understanding of Banner’s consolidated financial statements. These policies relate to (i) the methodology for the recognition of interest income, (ii) determination of the provision and allowance for credit losses, (iii) the valuation of financial assets and liabilities recorded at fair value, (iv) the valuation of intangible assets, such as goodwill,</span><span style="color:#ff0000;font-family:'Times New Roman',sans-serif;font-size:9pt;font-weight:400;line-height:120%"> </span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:9pt;font-weight:400;line-height:120%">core deposit intangibles (CDI) and loan servicing rights, (v) the valuation of real estate held for sale, (vi) the valuation or recognition of deferred tax assets and liabilities and (vii) the valuation of assets and liabilities acquired in business combinations and subsequent recognition of related income and expense. These policies and judgments, estimates and assumptions are described in greater detail in subsequent Notes to the Consolidated Financial Statements. Management believes that the judgments, estimates and assumptions used in the preparation of the consolidated financial statements are appropriate based on the factual circumstances at the time. However, given the sensitivity of the consolidated financial statements to these critical accounting policies, the use of other judgments, estimates and </span></div>assumptions could result in material differences in the Company’s results of operations or financial condition. Further, subsequent changes in economic or market conditions could have a material impact on these estimates and the Company’s financial condition and operating results in future periods.
CY2021Q4	us-gaap	Federal Home Loan Bank Stock FederalHomeLoanBankStock	12000000	USD
CY2020Q4	us-gaap	Federal Home Loan Bank Stock FederalHomeLoanBankStock	16400000	USD
CY2021Q4	banr	Federal Home Loan Bank Stock Par Value Per Share FederalHomeLoanBankStockParValuePerShare	100
CY2021	us-gaap	Gain Loss On Sales Of Loans Net GainLossOnSalesOfLoansNet	34500000	USD
CY2020	us-gaap	Gain Loss On Sales Of Loans Net GainLossOnSalesOfLoansNet	51900000	USD
CY2021	us-gaap	Prior Period Reclassification Adjustment Description PriorPeriodReclassificationAdjustmentDescription	<span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:9pt;font-style:italic;font-weight:700;line-height:120%">Reclassification:</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:9pt;font-weight:400;line-height:120%"> Certain reclassifications have been made to the prior years’ consolidated financial statements and/or schedules to conform to the current year’s presentation. These reclassifications may have affected certain reported amounts and ratios for the prior periods. These reclassifications had no effect on retained earnings or net income as previously presented and the effect of these reclassifications is considered immaterial.</span>
CY2021Q4	us-gaap	Trading Securities Debt Amortized Cost TradingSecuritiesDebtAmortizedCost	27203000	USD
CY2021Q4	us-gaap	Trading Securities Debt TradingSecuritiesDebt	26981000	USD
CY2021Q4	us-gaap	Available For Sale Debt Securities Amortized Cost Basis AvailableForSaleDebtSecuritiesAmortizedCostBasis	3653160000	USD
CY2021Q4	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Gain Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax	36927000	USD
CY2021Q4	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Loss Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax	51094000	USD
CY2021Q4	us-gaap	Debt Securities Available For Sale Allowance For Credit Loss DebtSecuritiesAvailableForSaleAllowanceForCreditLoss	0	USD
CY2021Q4	us-gaap	Available For Sale Securities Debt Securities AvailableForSaleSecuritiesDebtSecurities	3638993000	USD
CY2021Q4	us-gaap	Held To Maturity Securities Amortized Cost Before Other Than Temporary Impairment HeldToMaturitySecuritiesAmortizedCostBeforeOtherThanTemporaryImpairment	521355000	USD
CY2021Q4	us-gaap	Held To Maturity Securities Accumulated Unrecognized Holding Gain HeldToMaturitySecuritiesAccumulatedUnrecognizedHoldingGain	21917000	USD
CY2021Q4	us-gaap	Held To Maturity Securities Accumulated Unrecognized Holding Loss HeldToMaturitySecuritiesAccumulatedUnrecognizedHoldingLoss	1419000	USD
CY2021Q4	us-gaap	Held To Maturity Securities Fair Value HeldToMaturitySecuritiesFairValue	541853000	USD
CY2021Q4	us-gaap	Debt Securities Held To Maturity Allowance For Credit Loss DebtSecuritiesHeldToMaturityAllowanceForCreditLoss	433000	USD
CY2020Q4	us-gaap	Trading Securities Debt Amortized Cost TradingSecuritiesDebtAmortizedCost	27203000	USD
CY2020Q4	us-gaap	Trading Securities Debt TradingSecuritiesDebt	24980000	USD
CY2020Q4	us-gaap	Available For Sale Debt Securities Amortized Cost Basis AvailableForSaleDebtSecuritiesAmortizedCostBasis	2256189000	USD
CY2020Q4	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Gain Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax	68543000	USD
CY2020Q4	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Loss Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax	2139000	USD
CY2020Q4	us-gaap	Debt Securities Available For Sale Allowance For Credit Loss DebtSecuritiesAvailableForSaleAllowanceForCreditLoss	0	USD
CY2020Q4	us-gaap	Available For Sale Securities Debt Securities AvailableForSaleSecuritiesDebtSecurities	2322593000	USD
CY2020Q4	us-gaap	Held To Maturity Securities Amortized Cost Before Other Than Temporary Impairment HeldToMaturitySecuritiesAmortizedCostBeforeOtherThanTemporaryImpairment	421807000	USD
CY2020Q4	us-gaap	Held To Maturity Securities Accumulated Unrecognized Holding Gain HeldToMaturitySecuritiesAccumulatedUnrecognizedHoldingGain	26980000	USD
CY2020Q4	us-gaap	Held To Maturity Securities Accumulated Unrecognized Holding Loss HeldToMaturitySecuritiesAccumulatedUnrecognizedHoldingLoss	106000	USD
CY2020Q4	us-gaap	Held To Maturity Securities Fair Value HeldToMaturitySecuritiesFairValue	448681000	USD
CY2020Q4	us-gaap	Debt Securities Held To Maturity Allowance For Credit Loss DebtSecuritiesHeldToMaturityAllowanceForCreditLoss	94000	USD
CY2021Q4	banr	Debt Securities Held To Maturity Accrued Interest Receivable DebtSecuritiesHeldToMaturityAccruedInterestReceivable	3300000	USD
CY2020Q4	banr	Debt Securities Held To Maturity Accrued Interest Receivable DebtSecuritiesHeldToMaturityAccruedInterestReceivable	3000000	USD
CY2021Q4	banr	Debt Securities Available For Sale Accrued Interest Receivable DebtSecuritiesAvailableForSaleAccruedInterestReceivable	10100000	USD
CY2020Q4	banr	Debt Securities Available For Sale Accrued Interest Receivable DebtSecuritiesAvailableForSaleAccruedInterestReceivable	6900000	USD
CY2021Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position Less Than12 Months DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12Months	1359199000	USD
CY2021Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position Less Than12 Months Accumulated Loss DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss	38379000	USD
CY2021Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position12 Months Or Longer DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLonger	811239000	USD
CY2021Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position12 Months Or Longer Accumulated Loss DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss	12715000	USD
CY2021Q4	us-gaap	Debt Securities Available For Sale Unrealized Loss Position DebtSecuritiesAvailableForSaleUnrealizedLossPosition	2170438000	USD
CY2021Q4	us-gaap	Debt Securities Available For Sale Unrealized Loss Position Accumulated Loss DebtSecuritiesAvailableForSaleUnrealizedLossPositionAccumulatedLoss	51094000	USD
CY2020Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position Less Than12 Months DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12Months	189078000	USD
CY2020Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position Less Than12 Months Accumulated Loss DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss	1135000	USD
CY2020Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position12 Months Or Longer DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLonger	58616000	USD
CY2020Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position12 Months Or Longer Accumulated Loss DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss	1004000	USD
CY2020Q4	us-gaap	Debt Securities Available For Sale Unrealized Loss Position DebtSecuritiesAvailableForSaleUnrealizedLossPosition	247694000	USD
CY2020Q4	us-gaap	Debt Securities Available For Sale Unrealized Loss Position Accumulated Loss DebtSecuritiesAvailableForSaleUnrealizedLossPositionAccumulatedLoss	2139000	USD
CY2021Q4	us-gaap	Debt Securities Available For Sale Unrealized Loss Position Number Of Positions DebtSecuritiesAvailableForSaleUnrealizedLossPositionNumberOfPositions	97	numberOfSecurities
CY2020Q4	us-gaap	Debt Securities Available For Sale Unrealized Loss Position Number Of Positions DebtSecuritiesAvailableForSaleUnrealizedLossPositionNumberOfPositions	54	numberOfSecurities
CY2021	us-gaap	Proceeds From Payments For Trading Securities ProceedsFromPaymentsForTradingSecurities	0	USD
CY2021Q4	banr	Trading Securities Number Of Securities In Nonaccrual Status TradingSecuritiesNumberOfSecuritiesInNonaccrualStatus	0	numberOfSecurities
CY2021	us-gaap	Debt Securities Trading Unrealized Gain DebtSecuritiesTradingUnrealizedGain	2000000	USD
CY2020	us-gaap	Debt Securities Trading Unrealized Loss DebtSecuritiesTradingUnrealizedLoss	656000	USD
CY2021	us-gaap	Debt Securities Available For Sale Realized Gain DebtSecuritiesAvailableForSaleRealizedGain	993000	USD
CY2020	us-gaap	Debt Securities Available For Sale Realized Gain DebtSecuritiesAvailableForSaleRealizedGain	899000	USD
CY2019	us-gaap	Debt Securities Available For Sale Realized Gain DebtSecuritiesAvailableForSaleRealizedGain	239000	USD
CY2021	us-gaap	Debt Securities Available For Sale Realized Loss DebtSecuritiesAvailableForSaleRealizedLoss	495000	USD
CY2020	us-gaap	Debt Securities Available For Sale Realized Loss DebtSecuritiesAvailableForSaleRealizedLoss	445000	USD
CY2019	us-gaap	Debt Securities Available For Sale Realized Loss DebtSecuritiesAvailableForSaleRealizedLoss	205000	USD
CY2021	us-gaap	Debt Securities Available For Sale Realized Gain Loss DebtSecuritiesAvailableForSaleRealizedGainLoss	498000	USD
CY2020	us-gaap	Debt Securities Available For Sale Realized Gain Loss DebtSecuritiesAvailableForSaleRealizedGainLoss	454000	USD
CY2019	us-gaap	Debt Securities Available For Sale Realized Gain Loss DebtSecuritiesAvailableForSaleRealizedGainLoss	34000	USD
CY2021Q4	banr	Availableforsale Securities Numberof Securitiesin Nonaccrual Status AvailableforsaleSecuritiesNumberofSecuritiesinNonaccrualStatus	0	numberOfSecurities
CY2020Q4	banr	Availableforsale Securities Numberof Securitiesin Nonaccrual Status AvailableforsaleSecuritiesNumberofSecuritiesinNonaccrualStatus	0	numberOfSecurities
CY2021	us-gaap	Held To Maturity Securities Sold Security Realized Gain Loss HeldToMaturitySecuritiesSoldSecurityRealizedGainLoss	3000	USD
CY2021	us-gaap	Heldtomaturity Securities Sold Security Realized Gain Loss Excluding Other Than Temporary Impairments HeldtomaturitySecuritiesSoldSecurityRealizedGainLossExcludingOtherThanTemporaryImpairments	-65000	USD
CY2020	us-gaap	Heldtomaturity Securities Sold Security Realized Gain Loss Excluding Other Than Temporary Impairments HeldtomaturitySecuritiesSoldSecurityRealizedGainLossExcludingOtherThanTemporaryImpairments	216000	USD
CY2021Q4	us-gaap	Available For Sale Securities Debt Maturities Within One Year Fair Value AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearFairValue	14174000	USD
CY2021Q4	us-gaap	Held To Maturity Securities Debt Maturities Within One Year Net Carrying Amount HeldToMaturitySecuritiesDebtMaturitiesWithinOneYearNetCarryingAmount	12026000	USD
CY2021Q4	us-gaap	Held To Maturity Securities Debt Maturities Within One Year Fair Value HeldToMaturitySecuritiesDebtMaturitiesWithinOneYearFairValue	12087000	USD
CY2019	us-gaap	Heldtomaturity Securities Sold Security Realized Gain Loss Excluding Other Than Temporary Impairments HeldtomaturitySecuritiesSoldSecurityRealizedGainLossExcludingOtherThanTemporaryImpairments	-1000	USD
CY2020Q4	banr	Held To Maturity Securities Number Of Securities In Nonaccrual Status HeldToMaturitySecuritiesNumberOfSecuritiesInNonaccrualStatus	0	numberOfSecurities
CY2021Q4	banr	Held To Maturity Securities Number Of Securities In Nonaccrual Status HeldToMaturitySecuritiesNumberOfSecuritiesInNonaccrualStatus	0	numberOfSecurities
CY2021	us-gaap	Proceeds From Sale Of Equity Securities Fv Ni ProceedsFromSaleOfEquitySecuritiesFvNi	4800000	USD
CY2021	us-gaap	Equity Securities Fv Ni Realized Gain Loss EquitySecuritiesFvNiRealizedGainLoss	46000	USD
CY2020	us-gaap	Proceeds From Sale Of Equity Securities Fv Ni ProceedsFromSaleOfEquitySecuritiesFvNi	1060000000.00	USD
CY2020	us-gaap	Equity Securities Fv Ni Realized Gain Loss EquitySecuritiesFvNiRealizedGainLoss	177000	USD
CY2020	banr	Equity Securities Visa Class B Gain Loss EquitySecuritiesVISAClassBGainLoss	519000	USD
CY2021Q4	banr	Trading Securities Debt Maturities Next Twelve Months Amortized Cost Basis TradingSecuritiesDebtMaturitiesNextTwelveMonthsAmortizedCostBasis	0	USD
CY2021Q4	banr	Trading Securities Debt Maturities Next Twelve Months Fair Value TradingSecuritiesDebtMaturitiesNextTwelveMonthsFairValue	0	USD
CY2021Q4	us-gaap	Available For Sale Securities Debt Maturities Within One Year Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearAmortizedCost	14077000	USD
CY2021Q4	banr	Trading Securities Debt Maturities Year Two Through Five Amortized Cost Basis TradingSecuritiesDebtMaturitiesYearTwoThroughFiveAmortizedCostBasis	0	USD
CY2021Q4	banr	Trading Securities Debt Maturities Year Two Through Five Fair Value TradingSecuritiesDebtMaturitiesYearTwoThroughFiveFairValue	0	USD
CY2021Q4	us-gaap	Available For Sale Securities Debt Maturities After One Through Five Years Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsAmortizedCost	165039000	USD
CY2021Q4	us-gaap	Available For Sale Securities Debt Maturities After One Through Five Years Fair Value AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsFairValue	170104000	USD
CY2021Q4	us-gaap	Held To Maturity Securities Debt Maturities After One Through Five Years Net Carrying Amount HeldToMaturitySecuritiesDebtMaturitiesAfterOneThroughFiveYearsNetCarryingAmount	93652000	USD
CY2021Q4	us-gaap	Held To Maturity Securities Debt Maturities After One Through Five Years Fair Value HeldToMaturitySecuritiesDebtMaturitiesAfterOneThroughFiveYearsFairValue	95299000	USD
CY2021Q4	banr	Trading Securities Debt Maturities Year Six Through Ten Amortized Cost Basis TradingSecuritiesDebtMaturitiesYearSixThroughTenAmortizedCostBasis	0	USD
CY2021Q4	banr	Trading Securities Debt Maturities Year Six Through Ten Fair Value TradingSecuritiesDebtMaturitiesYearSixThroughTenFairValue	0	USD
CY2021Q4	us-gaap	Available For Sale Securities Debt Maturities After Five Through Ten Years Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsAmortizedCost	849194000	USD
CY2021Q4	us-gaap	Available For Sale Securities Debt Maturities After Five Through Ten Years Fair Value AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsFairValue	846399000	USD
CY2021Q4	us-gaap	Held To Maturity Securities Debt Maturities After Five Through Ten Years Net Carrying Amount HeldToMaturitySecuritiesDebtMaturitiesAfterFiveThroughTenYearsNetCarryingAmount	22562000	USD
CY2021Q4	us-gaap	Held To Maturity Securities Debt Maturities After Five Through Ten Years Fair Value HeldToMaturitySecuritiesDebtMaturitiesAfterFiveThroughTenYearsFairValue	23776000	USD
CY2021Q4	banr	Trading Securities Debt Maturities After Year Ten Amortized Cost Basis TradingSecuritiesDebtMaturitiesAfterYearTenAmortizedCostBasis	27203000	USD
CY2021Q4	banr	Trading Securities Debt Maturities After Year Ten Fair Value TradingSecuritiesDebtMaturitiesAfterYearTenFairValue	26981000	USD
CY2021Q4	us-gaap	Available For Sale Securities Debt Maturities After Ten Years Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesAfterTenYearsAmortizedCost	2624850000	USD
CY2021Q4	us-gaap	Available For Sale Securities Debt Maturities After Ten Years Fair Value AvailableForSaleSecuritiesDebtMaturitiesAfterTenYearsFairValue	2608316000	USD
CY2021Q4	us-gaap	Held To Maturity Securities Debt Maturities After Ten Years Net Carrying Amount HeldToMaturitySecuritiesDebtMaturitiesAfterTenYearsNetCarryingAmount	393115000	USD
CY2021Q4	us-gaap	Held To Maturity Securities Debt Maturities After Ten Years Fair Value HeldToMaturitySecuritiesDebtMaturitiesAfterTenYearsFairValue	410691000	USD
CY2021Q4	us-gaap	Trading Securities Debt Amortized Cost TradingSecuritiesDebtAmortizedCost	27203000	USD
CY2021Q4	us-gaap	Trading Securities Debt TradingSecuritiesDebt	26981000	USD
CY2021Q4	us-gaap	Available For Sale Debt Securities Amortized Cost Basis AvailableForSaleDebtSecuritiesAmortizedCostBasis	3653160000	USD
CY2021Q4	us-gaap	Available For Sale Securities Debt Securities AvailableForSaleSecuritiesDebtSecurities	3638993000	USD
CY2021Q4	us-gaap	Held To Maturity Securities HeldToMaturitySecurities	521355000	USD
CY2021Q4	us-gaap	Held To Maturity Securities Fair Value HeldToMaturitySecuritiesFairValue	541853000	USD
CY2021Q4	banr	Pledged Financial Instruments Not Separately Reported Securitiesfor Stateand Local Government Public Deposits PledgedFinancialInstrumentsNotSeparatelyReportedSecuritiesforStateandLocalGovernmentPublicDeposits	209304000	USD
CY2021Q4	banr	Pledged Financial Instruments Not Separately Reported Securitiesfor Stateand Local Government Public Deposits Amortized Cost PledgedFinancialInstrumentsNotSeparatelyReportedSecuritiesforStateandLocalGovernmentPublicDepositsAmortizedCost	208827000	USD
CY2021Q4	banr	Pledged Financial Instruments Not Separately Reported Securitiesfor Stateand Local Government Public Deposits Fair Value PledgedFinancialInstrumentsNotSeparatelyReportedSecuritiesforStateandLocalGovernmentPublicDepositsFairValue	221319000	USD
CY2021Q4	banr	Pledged Financial Instruments Not Separately Reported Securitiesfor Interest Rate Swap Counterparties PledgedFinancialInstrumentsNotSeparatelyReportedSecuritiesforInterestRateSwapCounterparties	24268000	USD
CY2021Q4	banr	Pledged Financial Instruments Not Separately Reported Securities For Interest Rate Swap Counterparties Amortized Cost PledgedFinancialInstrumentsNotSeparatelyReportedSecuritiesForInterestRateSwapCounterpartiesAmortizedCost	23723000	USD
CY2021Q4	banr	Pledged Financial Instruments Not Separately Reported Securities For Interest Rate Swap Counterparties Fair Value PledgedFinancialInstrumentsNotSeparatelyReportedSecuritiesForInterestRateSwapCounterpartiesFairValue	24285000	USD
CY2021Q4	us-gaap	Pledged Financial Instruments Not Separately Reported Securities For Repurchase Agreements PledgedFinancialInstrumentsNotSeparatelyReportedSecuritiesForRepurchaseAgreements	292700000	USD
CY2021Q4	banr	Pledged Financial Instruments Not Separately Reported Securities For Repurchase Agreements Amortized Cost PledgedFinancialInstrumentsNotSeparatelyReportedSecuritiesForRepurchaseAgreementsAmortizedCost	300441000	USD
CY2021Q4	banr	Pledged Financial Instruments Not Separately Reported Securities For Repurchase Agreements Fair Value PledgedFinancialInstrumentsNotSeparatelyReportedSecuritiesForRepurchaseAgreementsFairValue	292700000	USD
CY2021Q4	banr	Pledged Financial Instruments Not Separately Reported Interestbearing Depositsfor Other Debt Facilities PledgedFinancialInstrumentsNotSeparatelyReportedInterestbearingDepositsforOtherDebtFacilities	2529000	USD
CY2021Q4	banr	Pledged Financial Instruments Not Separately Reported Interestbearing Depositsfor Other Debt Facilities Amortized Cost PledgedFinancialInstrumentsNotSeparatelyReportedInterestbearingDepositsforOtherDebtFacilitiesAmortizedCost	2529000	USD
CY2020	us-gaap	Debt Securities Held To Maturity Allowance For Credit Loss Period Increase Decrease DebtSecuritiesHeldToMaturityAllowanceForCreditLossPeriodIncreaseDecrease	31000	USD
CY2021Q4	banr	Pledged Financial Instruments Not Separately Reported Interestbearing Depositsfor Other Debt Facilities Fair Value PledgedFinancialInstrumentsNotSeparatelyReportedInterestbearingDepositsforOtherDebtFacilitiesFairValue	2559000	USD
CY2021Q4	us-gaap	Pledged Financial Instruments Not Separately Reported Securities Pledged PledgedFinancialInstrumentsNotSeparatelyReportedSecuritiesPledged	528801000	USD
CY2021Q4	banr	Pledged Financial Instruments Not Separately Reported Securities Amortized Cost PledgedFinancialInstrumentsNotSeparatelyReportedSecuritiesAmortizedCost	535520000	USD
CY2021Q4	banr	Pledged Financial Instruments Not Separately Reported Securities Fair Value PledgedFinancialInstrumentsNotSeparatelyReportedSecuritiesFairValue	540863000	USD
CY2021Q4	us-gaap	Held To Maturity Securities HeldToMaturitySecurities	521355000	USD
CY2020Q4	us-gaap	Held To Maturity Securities HeldToMaturitySecurities	421807000	USD
CY2020Q4	us-gaap	Debt Securities Held To Maturity Allowance For Credit Loss DebtSecuritiesHeldToMaturityAllowanceForCreditLoss	94000	USD
CY2021	us-gaap	Debt Securities Held To Maturity Allowance For Credit Loss Period Increase Decrease DebtSecuritiesHeldToMaturityAllowanceForCreditLossPeriodIncreaseDecrease	589000	USD
CY2021	us-gaap	Debt Securities Held To Maturity Allowance For Credit Loss Writeoff DebtSecuritiesHeldToMaturityAllowanceForCreditLossWriteoff	-250000	USD
CY2021Q4	us-gaap	Debt Securities Held To Maturity Allowance For Credit Loss DebtSecuritiesHeldToMaturityAllowanceForCreditLoss	433000	USD
CY2019Q4	us-gaap	Debt Securities Held To Maturity Allowance For Credit Loss DebtSecuritiesHeldToMaturityAllowanceForCreditLoss	0	USD
CY2020Q4	us-gaap	Debt Securities Held To Maturity Allowance For Credit Loss DebtSecuritiesHeldToMaturityAllowanceForCreditLoss	94000	USD
CY2021Q4	us-gaap	Loans And Leases Receivable Gross Carrying Amount LoansAndLeasesReceivableGrossCarryingAmount	9084763000	USD
CY2021Q4	banr	Loans Receivable Loan Percentage Of Total LoansReceivableLoanPercentageOfTotal	1.000
CY2020Q4	us-gaap	Loans And Leases Receivable Gross Carrying Amount LoansAndLeasesReceivableGrossCarryingAmount	9870982000	USD
CY2020Q4	banr	Loans Receivable Loan Percentage Of Total LoansReceivableLoanPercentageOfTotal	1.000
CY2021Q4	us-gaap	Loans And Leases Receivable Allowance LoansAndLeasesReceivableAllowance	132099000	USD
CY2020Q4	us-gaap	Loans And Leases Receivable Allowance LoansAndLeasesReceivableAllowance	167279000	USD
CY2021Q4	us-gaap	Loans And Leases Receivable Net Reported Amount LoansAndLeasesReceivableNetReportedAmount	8952664000	USD
CY2020Q4	us-gaap	Loans And Leases Receivable Net Reported Amount LoansAndLeasesReceivableNetReportedAmount	9703703000	USD
CY2021Q4	us-gaap	Unamortized Loan Commitment And Origination Fees And Unamortized Discounts Or Premiums UnamortizedLoanCommitmentAndOriginationFeesAndUnamortizedDiscountsOrPremiums	-8600000	USD
CY2020Q4	us-gaap	Unamortized Loan Commitment And Origination Fees And Unamortized Discounts Or Premiums UnamortizedLoanCommitmentAndOriginationFeesAndUnamortizedDiscountsOrPremiums	-25600000	USD
CY2021Q4	us-gaap	Receivable With Imputed Interest Discount ReceivableWithImputedInterestDiscount	9700000	USD
CY2020Q4	us-gaap	Receivable With Imputed Interest Discount ReceivableWithImputedInterestDiscount	16100000	USD
CY2021Q4	us-gaap	Financing Receivable Accrued Interest Before Allowance For Credit Loss FinancingReceivableAccruedInterestBeforeAllowanceForCreditLoss	29200000	USD
CY2020Q4	us-gaap	Financing Receivable Accrued Interest Before Allowance For Credit Loss FinancingReceivableAccruedInterestBeforeAllowanceForCreditLoss	36600000	USD
CY2021Q4	us-gaap	Loans And Leases Receivable Related Parties LoansAndLeasesReceivableRelatedParties	700000	USD
CY2020Q4	us-gaap	Loans And Leases Receivable Related Parties LoansAndLeasesReceivableRelatedParties	1500000	USD
CY2021Q4	banr	Financing Receivable Modifications Commitments To Advance Funds FinancingReceivableModificationsCommitmentsToAdvanceFunds	0	USD
CY2020	us-gaap	Financing Receivable Modifications Number Of Contracts2 FinancingReceivableModificationsNumberOfContracts2	4	contract
CY2020	us-gaap	Financing Receivable Modifications Pre Modification Recorded Investment2 FinancingReceivableModificationsPreModificationRecordedInvestment2	5701000	USD
CY2020	us-gaap	Financing Receivable Modifications Post Modification Recorded Investment2 FinancingReceivableModificationsPostModificationRecordedInvestment2	5701000	USD
CY2019	us-gaap	Financing Receivable Modifications Number Of Contracts2 FinancingReceivableModificationsNumberOfContracts2	3	contract
CY2019	us-gaap	Financing Receivable Modifications Pre Modification Recorded Investment2 FinancingReceivableModificationsPreModificationRecordedInvestment2	1846000	USD
CY2019	us-gaap	Financing Receivable Modifications Post Modification Recorded Investment2 FinancingReceivableModificationsPostModificationRecordedInvestment2	1846000	USD
CY2021Q4	banr	Collateral Dependent Loans Amortized Cost CollateralDependentLoansAmortizedCost	14044000	USD
CY2020Q4	banr	Collateral Dependent Loans Amortized Cost CollateralDependentLoansAmortizedCost	19609000	USD
CY2021Q4	us-gaap	Loans And Leases Receivable Gross Carrying Amount LoansAndLeasesReceivableGrossCarryingAmount	9084763000	USD
CY2021Q4	us-gaap	Financing Receivable Nonaccrual No Allowance FinancingReceivableNonaccrualNoAllowance	11765000	USD
CY2021Q4	us-gaap	Financing Receivable Recorded Investment Nonaccrual Status FinancingReceivableRecordedInvestmentNonaccrualStatus	22281000	USD
CY2021Q4	us-gaap	Financing Receivable Recorded Investment90 Days Past Due And Still Accruing FinancingReceivableRecordedInvestment90DaysPastDueAndStillAccruing	555000	USD
CY2020Q4	us-gaap	Loans And Leases Receivable Gross Carrying Amount LoansAndLeasesReceivableGrossCarryingAmount	9870982000	USD
CY2020Q4	us-gaap	Financing Receivable Nonaccrual No Allowance FinancingReceivableNonaccrualNoAllowance	19586000	USD
CY2020Q4	us-gaap	Financing Receivable Recorded Investment Nonaccrual Status FinancingReceivableRecordedInvestmentNonaccrualStatus	32560000	USD
CY2020Q4	us-gaap	Financing Receivable Recorded Investment90 Days Past Due And Still Accruing FinancingReceivableRecordedInvestment90DaysPastDueAndStillAccruing	3054000	USD
CY2020Q4	us-gaap	Loans And Leases Receivable Allowance LoansAndLeasesReceivableAllowance	167279000	USD
CY2021	us-gaap	Provision For Loan And Lease Losses ProvisionForLoanAndLeaseLosses	-33112000	USD
CY2021	us-gaap	Financing Receivable Allowance For Credit Losses Recovery FinancingReceivableAllowanceForCreditLossesRecovery	4615000	USD
CY2021	us-gaap	Financing Receivable Allowance For Credit Losses Write Offs FinancingReceivableAllowanceForCreditLossesWriteOffs	6683000	USD
CY2021Q4	us-gaap	Loans And Leases Receivable Allowance LoansAndLeasesReceivableAllowance	132099000	USD
CY2021	banr	Net Loan Charge Offs As A Percent Of Average Outstanding Loans During The Period NetLoanChargeOffsAsAPercentOfAverageOutstandingLoansDuringThePeriod	-0.0002
CY2019Q4	us-gaap	Loans And Leases Receivable Allowance LoansAndLeasesReceivableAllowance	100559000	USD
CY2020	us-gaap	Provision For Loan And Lease Losses ProvisionForLoanAndLeaseLosses	64285000	USD
CY2020	us-gaap	Financing Receivable Allowance For Credit Losses Recovery FinancingReceivableAllowanceForCreditLossesRecovery	6263000	USD
CY2020	us-gaap	Financing Receivable Allowance For Credit Losses Write Offs FinancingReceivableAllowanceForCreditLossesWriteOffs	11640000	USD
CY2020Q4	us-gaap	Loans And Leases Receivable Allowance LoansAndLeasesReceivableAllowance	167279000	USD
CY2020	banr	Net Loan Charge Offs As A Percent Of Average Outstanding Loans During The Period NetLoanChargeOffsAsAPercentOfAverageOutstandingLoansDuringThePeriod	-0.0005
CY2018Q4	us-gaap	Loans And Leases Receivable Allowance LoansAndLeasesReceivableAllowance	96485000	USD
CY2019	us-gaap	Provision For Loan And Lease Losses ProvisionForLoanAndLeaseLosses	10000000	USD
CY2019	us-gaap	Financing Receivable Allowance For Credit Losses Recovery FinancingReceivableAllowanceForCreditLossesRecovery	2465000	USD
CY2019	us-gaap	Financing Receivable Allowance For Credit Losses Write Offs FinancingReceivableAllowanceForCreditLossesWriteOffs	8391000	USD
CY2019Q4	us-gaap	Loans And Leases Receivable Allowance LoansAndLeasesReceivableAllowance	100559000	USD
CY2019	banr	Net Loan Charge Offs As A Percent Of Average Outstanding Loans During The Period NetLoanChargeOffsAsAPercentOfAverageOutstandingLoansDuringThePeriod	-0.0007
CY2020Q4	us-gaap	Real Estate Acquired Through Foreclosure RealEstateAcquiredThroughForeclosure	816000	USD
CY2019Q4	us-gaap	Real Estate Acquired Through Foreclosure RealEstateAcquiredThroughForeclosure	814000	USD
CY2018Q4	us-gaap	Real Estate Acquired Through Foreclosure RealEstateAcquiredThroughForeclosure	2611000	USD
CY2021	us-gaap	Real Estate Acquisitions Through Foreclosures RealEstateAcquisitionsThroughForeclosures	512000	USD
CY2020	us-gaap	Real Estate Acquisitions Through Foreclosures RealEstateAcquisitionsThroughForeclosures	1588000	USD
CY2019	us-gaap	Real Estate Acquisitions Through Foreclosures RealEstateAcquisitionsThroughForeclosures	109000	USD
CY2021	banr	Real Estate Owned Additionsfrom Acquisitions RealEstateOwnedAdditionsfromAcquisitions	0	USD
CY2020	banr	Real Estate Owned Additionsfrom Acquisitions RealEstateOwnedAdditionsfromAcquisitions	0	USD
CY2019	banr	Real Estate Owned Additionsfrom Acquisitions RealEstateOwnedAdditionsfromAcquisitions	650000	USD
CY2021	us-gaap	Proceeds From Sale Of Other Real Estate ProceedsFromSaleOfOtherRealEstate	783000	USD
CY2020	us-gaap	Proceeds From Sale Of Other Real Estate ProceedsFromSaleOfOtherRealEstate	2360000	USD
CY2019	us-gaap	Proceeds From Sale Of Other Real Estate ProceedsFromSaleOfOtherRealEstate	2588000	USD
CY2021	us-gaap	Gains Losses On Sales Of Other Real Estate GainsLossesOnSalesOfOtherRealEstate	-307000	USD
CY2020	us-gaap	Gains Losses On Sales Of Other Real Estate GainsLossesOnSalesOfOtherRealEstate	-819000	USD
CY2019	us-gaap	Gains Losses On Sales Of Other Real Estate GainsLossesOnSalesOfOtherRealEstate	-32000	USD
CY2021	us-gaap	Real Estate Owned Valuation Allowance Period Increase Decrease RealEstateOwnedValuationAllowancePeriodIncreaseDecrease	0	USD
CY2020	us-gaap	Real Estate Owned Valuation Allowance Period Increase Decrease RealEstateOwnedValuationAllowancePeriodIncreaseDecrease	-45000	USD
CY2019	us-gaap	Real Estate Owned Valuation Allowance Period Increase Decrease RealEstateOwnedValuationAllowancePeriodIncreaseDecrease	0	USD
CY2021Q4	us-gaap	Real Estate Acquired Through Foreclosure RealEstateAcquiredThroughForeclosure	852000	USD
CY2020Q4	us-gaap	Real Estate Acquired Through Foreclosure RealEstateAcquiredThroughForeclosure	816000	USD
CY2019Q4	us-gaap	Real Estate Acquired Through Foreclosure RealEstateAcquiredThroughForeclosure	814000	USD
CY2021Q4	banr	Real Estate Acquired Through Foreclosure Residential RealEstateAcquiredThroughForeclosureResidential	0	USD
CY2021Q4	us-gaap	Mortgage Loans In Process Of Foreclosure Amount MortgageLoansInProcessOfForeclosureAmount	609000	USD
CY2021Q4	us-gaap	Land Land	29387000	USD
CY2020Q4	us-gaap	Land Land	32196000	USD
CY2021Q4	us-gaap	Buildings And Improvements Gross BuildingsAndImprovementsGross	150238000	USD
CY2020Q4	us-gaap	Buildings And Improvements Gross BuildingsAndImprovementsGross	153934000	USD
CY2021Q4	us-gaap	Furniture And Fixtures Gross FurnitureAndFixturesGross	121637000	USD
CY2020Q4	us-gaap	Furniture And Fixtures Gross FurnitureAndFixturesGross	126115000	USD
CY2021Q4	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	301262000	USD
CY2020Q4	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	312245000	USD
CY2021Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	152503000	USD
CY2020Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	147689000	USD
CY2021Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	148759000	USD
CY2020Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	164556000	USD
CY2021Q4	us-gaap	Real Estate Held For Development And Sale RealEstateHeldForDevelopmentAndSale	3300000	USD
CY2020Q4	us-gaap	Real Estate Held For Development And Sale RealEstateHeldForDevelopmentAndSale	8400000	USD
CY2021	us-gaap	Depreciation Depreciation	17300000	USD
CY2020	us-gaap	Depreciation Depreciation	18100000	USD
CY2019	us-gaap	Depreciation Depreciation	17300000	USD
CY2021Q4	us-gaap	Noninterest Bearing Deposit Liabilities Domestic NoninterestBearingDepositLiabilitiesDomestic	6385177000	USD
CY2020Q4	us-gaap	Noninterest Bearing Deposit Liabilities Domestic NoninterestBearingDepositLiabilitiesDomestic	5492924000	USD
CY2021Q4	us-gaap	Interest Bearing Domestic Deposit Checking InterestBearingDomesticDepositChecking	1947414000	USD
CY2020Q4	us-gaap	Interest Bearing Domestic Deposit Checking InterestBearingDomesticDepositChecking	1569435000	USD
CY2021Q4	us-gaap	Interest Bearing Domestic Deposit Savings InterestBearingDomesticDepositSavings	2784716000	USD
CY2020Q4	us-gaap	Interest Bearing Domestic Deposit Savings InterestBearingDomesticDepositSavings	2398482000	USD
CY2021Q4	us-gaap	Interest Bearing Domestic Deposit Money Market InterestBearingDomesticDepositMoneyMarket	2370995000	USD
CY2020Q4	us-gaap	Interest Bearing Domestic Deposit Money Market InterestBearingDomesticDepositMoneyMarket	2191135000	USD
CY2021Q4	banr	Deposits Domestic Transaction And Saving Accounts DepositsDomesticTransactionAndSavingAccounts	7103125000	USD
CY2020Q4	banr	Deposits Domestic Transaction And Saving Accounts DepositsDomesticTransactionAndSavingAccounts	6159052000	USD
CY2021Q4	banr	Time Deposits250000orless TimeDeposits250000orless	657615000	USD
CY2020Q4	banr	Time Deposits250000orless TimeDeposits250000orless	718256000	USD
CY2021Q4	banr	Time Deposits Morethan250000 TimeDepositsMorethan250000	181016000	USD
CY2020Q4	banr	Time Deposits Morethan250000 TimeDepositsMorethan250000	197064000	USD
CY2021Q4	us-gaap	Interest Bearing Domestic Deposit Certificates Of Deposits InterestBearingDomesticDepositCertificatesOfDeposits	838631000	USD
CY2020Q4	us-gaap	Interest Bearing Domestic Deposit Certificates Of Deposits InterestBearingDomesticDepositCertificatesOfDeposits	915320000	USD
CY2021Q4	us-gaap	Deposits Domestic DepositsDomestic	14326933000	USD
CY2020Q4	us-gaap	Deposits Domestic DepositsDomestic	12567296000	USD
CY2021Q4	banr	Deposits Domestic Public Fund Transaction DepositsDomesticPublicFundTransaction	353874000	USD
CY2020Q4	banr	Deposits Domestic Public Fund Transaction DepositsDomesticPublicFundTransaction	302875000	USD
CY2021Q4	banr	Interest Bearing Domestic Deposit Public Fund Certificates InterestBearingDomesticDepositPublicFundCertificates	39961000	USD
CY2020Q4	banr	Interest Bearing Domestic Deposit Public Fund Certificates InterestBearingDomesticDepositPublicFundCertificates	59127000	USD
CY2021Q4	banr	Deposits Domestic Public Deposits DepositsDomesticPublicDeposits	393835000	USD
CY2020Q4	banr	Deposits Domestic Public Deposits DepositsDomesticPublicDeposits	362002000	USD
CY2021Q4	banr	Business Combination Acquired Deposits Time Deposit Premium BusinessCombinationAcquiredDepositsTimeDepositPremium	0	USD
CY2020Q4	banr	Business Combination Acquired Deposits Time Deposit Premium BusinessCombinationAcquiredDepositsTimeDepositPremium	58000	USD
CY2021Q4	us-gaap	Related Party Deposit Liabilities RelatedPartyDepositLiabilities	13100000	USD
CY2020Q4	us-gaap	Related Party Deposit Liabilities RelatedPartyDepositLiabilities	11200000	USD
CY2021Q4	banr	Timedepositsequaltoorgreaterthan250000 Timedepositsequaltoorgreaterthan250000	184500000	USD
CY2020Q4	banr	Timedepositsequaltoorgreaterthan250000 Timedepositsequaltoorgreaterthan250000	203600000	USD
CY2021Q4	us-gaap	Time Deposit Maturities Year One TimeDepositMaturitiesYearOne	652694000	USD
CY2021Q4	us-gaap	Time Deposits Weighted Average Interest Rate Maturities Year One TimeDepositsWeightedAverageInterestRateMaturitiesYearOne	0.0045
CY2021Q4	us-gaap	Time Deposit Maturities Year Two TimeDepositMaturitiesYearTwo	117013000	USD
CY2021Q4	us-gaap	Time Deposits Weighted Average Interest Rate Maturities Year Two TimeDepositsWeightedAverageInterestRateMaturitiesYearTwo	0.0063
CY2021Q4	us-gaap	Time Deposit Maturities Year Three TimeDepositMaturitiesYearThree	47057000	USD
CY2021Q4	us-gaap	Time Deposits Weighted Average Interest Rate Maturities Year Three TimeDepositsWeightedAverageInterestRateMaturitiesYearThree	0.0079
CY2021Q4	us-gaap	Time Deposit Maturities Year Four TimeDepositMaturitiesYearFour	9858000	USD
CY2021Q4	us-gaap	Time Deposits Weighted Average Interest Rate Maturities Year Four TimeDepositsWeightedAverageInterestRateMaturitiesYearFour	0.0099
CY2021Q4	us-gaap	Time Deposit Maturities Year Five TimeDepositMaturitiesYearFive	10552000	USD
CY2021Q4	us-gaap	Time Deposits Weighted Average Interest Rate Maturities Year Five TimeDepositsWeightedAverageInterestRateMaturitiesYearFive	0.0038
CY2021Q4	us-gaap	Time Deposit Maturities After Year Five TimeDepositMaturitiesAfterYearFive	1457000	USD
CY2021Q4	us-gaap	Time Deposits Weighted Average Interest Rate Maturities Greater Than Five Years TimeDepositsWeightedAverageInterestRateMaturitiesGreaterThanFiveYears	0.0085
CY2021Q4	us-gaap	Interest Bearing Domestic Deposit Certificates Of Deposits InterestBearingDomesticDepositCertificatesOfDeposits	838631000	USD
CY2021Q4	us-gaap	Weighted Average Rate Domestic Deposit Time Deposits WeightedAverageRateDomesticDepositTimeDeposits	0.0050
CY2021Q4	us-gaap	Federal Home Loan Bank Advances General Debt Obligations Disclosures Collateral Pledged1 FederalHomeLoanBankAdvancesGeneralDebtObligationsDisclosuresCollateralPledged1	0	USD
CY2020Q4	us-gaap	Federal Home Loan Bank Advances General Debt Obligations Disclosures Collateral Pledged1 FederalHomeLoanBankAdvancesGeneralDebtObligationsDisclosuresCollateralPledged1	0	USD
CY2021Q4	us-gaap	Federal Home Loan Bank Advances Maturities Summary Due Within One Year Of Balance Sheet Date FederalHomeLoanBankAdvancesMaturitiesSummaryDueWithinOneYearOfBalanceSheetDate	50000000	USD
CY2021Q4	us-gaap	Federal Home Loan Bank Advances Maturities Summary Average Interest Rate Of Amounts Due Within One Year Of Balance Sheet Date FederalHomeLoanBankAdvancesMaturitiesSummaryAverageInterestRateOfAmountsDueWithinOneYearOfBalanceSheetDate	0.0272
CY2020Q4	us-gaap	Federal Home Loan Bank Advances Maturities Summary Due Within One Year Of Balance Sheet Date FederalHomeLoanBankAdvancesMaturitiesSummaryDueWithinOneYearOfBalanceSheetDate	100000000	USD
CY2020Q4	us-gaap	Federal Home Loan Bank Advances Maturities Summary Average Interest Rate Of Amounts Due Within One Year Of Balance Sheet Date FederalHomeLoanBankAdvancesMaturitiesSummaryAverageInterestRateOfAmountsDueWithinOneYearOfBalanceSheetDate	0.0251
CY2021Q4	banr	Federal Home Loan Bank Advances Maturities Summary Due After One Year Through Three Years FederalHomeLoanBankAdvancesMaturitiesSummaryDueAfterOneYearThroughThreeYears	0	USD
CY2021Q4	us-gaap	Federal Home Loan Bank Advances Maturities Summary Average Interest Rate Two To Three Years From Balance Sheet Date FederalHomeLoanBankAdvancesMaturitiesSummaryAverageInterestRateTwoToThreeYearsFromBalanceSheetDate	0
CY2020Q4	banr	Federal Home Loan Bank Advances Maturities Summary Due After One Year Through Three Years FederalHomeLoanBankAdvancesMaturitiesSummaryDueAfterOneYearThroughThreeYears	50000000	USD
CY2020Q4	us-gaap	Federal Home Loan Bank Advances Maturities Summary Average Interest Rate Two To Three Years From Balance Sheet Date FederalHomeLoanBankAdvancesMaturitiesSummaryAverageInterestRateTwoToThreeYearsFromBalanceSheetDate	0.0272
CY2021Q4	banr	Federal Home Loan Bank Advances Maturities Summary Due After Three Years Through Five Years FederalHomeLoanBankAdvancesMaturitiesSummaryDueAfterThreeYearsThroughFiveYears	0	USD
CY2021Q4	banr	Federal Home Loan Bank Advances Maturities Summary Average Interest Rate Threeto Five Yearsfrom Balance Sheet Date FederalHomeLoanBankAdvancesMaturitiesSummaryAverageInterestRateThreetoFiveYearsfromBalanceSheetDate	0
CY2020Q4	banr	Federal Home Loan Bank Advances Maturities Summary Due After Three Years Through Five Years FederalHomeLoanBankAdvancesMaturitiesSummaryDueAfterThreeYearsThroughFiveYears	0	USD
CY2020Q4	banr	Federal Home Loan Bank Advances Maturities Summary Average Interest Rate Threeto Five Yearsfrom Balance Sheet Date FederalHomeLoanBankAdvancesMaturitiesSummaryAverageInterestRateThreetoFiveYearsfromBalanceSheetDate	0
CY2021Q4	us-gaap	Federal Home Loan Bank Advances Maturities Summary Due After Five Years Of Balance Sheet Date FederalHomeLoanBankAdvancesMaturitiesSummaryDueAfterFiveYearsOfBalanceSheetDate	0	USD
CY2021Q4	us-gaap	Federal Home Loan Bank Advances Maturities Summary Average Interest Rate After Five Years From Balance Sheet Date FederalHomeLoanBankAdvancesMaturitiesSummaryAverageInterestRateAfterFiveYearsFromBalanceSheetDate	0
CY2020Q4	us-gaap	Federal Home Loan Bank Advances Maturities Summary Due After Five Years Of Balance Sheet Date FederalHomeLoanBankAdvancesMaturitiesSummaryDueAfterFiveYearsOfBalanceSheetDate	0	USD
CY2020Q4	us-gaap	Federal Home Loan Bank Advances Maturities Summary Average Interest Rate After Five Years From Balance Sheet Date FederalHomeLoanBankAdvancesMaturitiesSummaryAverageInterestRateAfterFiveYearsFromBalanceSheetDate	0
CY2021Q4	us-gaap	Advances From Federal Home Loan Banks AdvancesFromFederalHomeLoanBanks	50000000	USD
CY2021Q4	us-gaap	Federal Home Loan Bank Advances Interest Rate FederalHomeLoanBankAdvancesInterestRate	0.0272
CY2020Q4	us-gaap	Advances From Federal Home Loan Banks AdvancesFromFederalHomeLoanBanks	150000000	USD
CY2020Q4	us-gaap	Federal Home Loan Bank Advances Interest Rate FederalHomeLoanBankAdvancesInterestRate	0.0258
CY2021Q4	us-gaap	Federal Home Loan Bank Advances Activity For Year Maximum Outstanding At Any Month End FederalHomeLoanBankAdvancesActivityForYearMaximumOutstandingAtAnyMonthEnd	150000000	USD
CY2020Q4	us-gaap	Federal Home Loan Bank Advances Activity For Year Maximum Outstanding At Any Month End FederalHomeLoanBankAdvancesActivityForYearMaximumOutstandingAtAnyMonthEnd	380000000	USD
CY2021	us-gaap	Federal Home Loan Bank Advances Activity For Year Average Balance Of Agreements Outstanding FederalHomeLoanBankAdvancesActivityForYearAverageBalanceOfAgreementsOutstanding	97900000	USD
CY2020	us-gaap	Federal Home Loan Bank Advances Activity For Year Average Balance Of Agreements Outstanding FederalHomeLoanBankAdvancesActivityForYearAverageBalanceOfAgreementsOutstanding	215100000	USD
CY2021	us-gaap	Federal Home Loan Bank Advances Activity For Year Average Interest Rate For Year FederalHomeLoanBankAdvancesActivityForYearAverageInterestRateForYear	0.0265
CY2020	us-gaap	Federal Home Loan Bank Advances Activity For Year Average Interest Rate For Year FederalHomeLoanBankAdvancesActivityForYearAverageInterestRateForYear	0.0234
CY2021Q4	us-gaap	Federal Home Loan Bank Advances General Debt Obligations Disclosures Amount Of Available Unused Funds FederalHomeLoanBankAdvancesGeneralDebtObligationsDisclosuresAmountOfAvailableUnusedFunds	2380000000	USD
CY2021Q4	us-gaap	Pledged Financial Instruments Not Separately Reported Securities For Repurchase Agreements PledgedFinancialInstrumentsNotSeparatelyReportedSecuritiesForRepurchaseAgreements	292700000	USD
CY2021Q4	banr	Number Of Wholly Owned Grantor Trusts NumberOfWhollyOwnedGrantorTrusts	9	subsidiary
CY2021	banr	Loss On Extinguishment Of Debt LossOnExtinguishmentOfDebt	2300000	USD
CY2021	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	20461000	USD
CY2020	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	30325000	USD
CY2019	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	25278000	USD
CY2021	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	4359000	USD
CY2020	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	6964000	USD
CY2019	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	2494000	USD
CY2021	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	24820000	USD
CY2020	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	37289000	USD
CY2019	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	27772000	USD
CY2021	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	18278000	USD
CY2020	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	-8134000	USD
CY2019	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	7738000	USD
CY2021	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	2448000	USD
CY2020	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	-2630000	USD
CY2019	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	1344000	USD
CY2021	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	20726000	USD
CY2020	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-10764000	USD
CY2019	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	9082000	USD
CY2021	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	45546000	USD
CY2020	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	26525000	USD
CY2019	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	36854000	USD
CY2021	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.210
CY2020	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.210
CY2019	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.210
CY2021	us-gaap	Effective Income Tax Rate Reconciliation Tax Exempt Income EffectiveIncomeTaxRateReconciliationTaxExemptIncome	0.030
CY2020	us-gaap	Effective Income Tax Rate Reconciliation Tax Exempt Income EffectiveIncomeTaxRateReconciliationTaxExemptIncome	0.044
CY2019	us-gaap	Effective Income Tax Rate Reconciliation Tax Exempt Income EffectiveIncomeTaxRateReconciliationTaxExemptIncome	0.022
CY2021	us-gaap	Effective Income Tax Rate Reconciliation Nondeductible Expense Life Insurance EffectiveIncomeTaxRateReconciliationNondeductibleExpenseLifeInsurance	0.004
CY2020	us-gaap	Effective Income Tax Rate Reconciliation Nondeductible Expense Life Insurance EffectiveIncomeTaxRateReconciliationNondeductibleExpenseLifeInsurance	0.009
CY2019	us-gaap	Effective Income Tax Rate Reconciliation Nondeductible Expense Life Insurance EffectiveIncomeTaxRateReconciliationNondeductibleExpenseLifeInsurance	0.005
CY2021	us-gaap	Effective Income Tax Rate Reconciliation State And Local Income Taxes EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes	0.022
CY2020	us-gaap	Effective Income Tax Rate Reconciliation State And Local Income Taxes EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes	0.025
CY2019	us-gaap	Effective Income Tax Rate Reconciliation State And Local Income Taxes EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes	0.020
CY2021	us-gaap	Effective Income Tax Rate Reconciliation Tax Credits EffectiveIncomeTaxRateReconciliationTaxCredits	0.015
CY2020	us-gaap	Effective Income Tax Rate Reconciliation Tax Credits EffectiveIncomeTaxRateReconciliationTaxCredits	0.026
CY2019	us-gaap	Effective Income Tax Rate Reconciliation Tax Credits EffectiveIncomeTaxRateReconciliationTaxCredits	0.012
CY2021	banr	Changeineffectiveincometaxrateduetomergerandacquisitioncosts Changeineffectiveincometaxrateduetomergerandacquisitioncosts	0
CY2020	banr	Changeineffectiveincometaxrateduetomergerandacquisitioncosts Changeineffectiveincometaxrateduetomergerandacquisitioncosts	0
CY2019	banr	Changeineffectiveincometaxrateduetomergerandacquisitioncosts Changeineffectiveincometaxrateduetomergerandacquisitioncosts	0.001
CY2021	banr	Effective Income Tax Rate Reconciliation State Audits And Amended Returns Percent EffectiveIncomeTaxRateReconciliationStateAuditsAndAmendedReturnsPercent	0
CY2020	banr	Effective Income Tax Rate Reconciliation State Audits And Amended Returns Percent EffectiveIncomeTaxRateReconciliationStateAuditsAndAmendedReturnsPercent	0
CY2019	banr	Effective Income Tax Rate Reconciliation State Audits And Amended Returns Percent EffectiveIncomeTaxRateReconciliationStateAuditsAndAmendedReturnsPercent	0.005
CY2021	us-gaap	Effective Income Tax Rate Reconciliation Other Reconciling Items Percent EffectiveIncomeTaxRateReconciliationOtherReconcilingItemsPercent	0.011
CY2020	us-gaap	Effective Income Tax Rate Reconciliation Other Reconciling Items Percent EffectiveIncomeTaxRateReconciliationOtherReconcilingItemsPercent	0.016
CY2019	us-gaap	Effective Income Tax Rate Reconciliation Other Reconciling Items Percent EffectiveIncomeTaxRateReconciliationOtherReconcilingItemsPercent	0.007
CY2021	us-gaap	Effective Income Tax Rate Reconciliation Other Adjustments EffectiveIncomeTaxRateReconciliationOtherAdjustments	-0.009
CY2020	us-gaap	Effective Income Tax Rate Reconciliation Other Adjustments EffectiveIncomeTaxRateReconciliationOtherAdjustments	0.014
CY2019	us-gaap	Effective Income Tax Rate Reconciliation Other Adjustments EffectiveIncomeTaxRateReconciliationOtherAdjustments	0.007
CY2021	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.185
CY2020	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.186
CY2019	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.201
CY2021Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals DeferredTaxAssetsTaxDeferredExpenseReservesAndAccruals	34753000	USD
CY2020Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals DeferredTaxAssetsTaxDeferredExpenseReservesAndAccruals	43158000	USD
CY2021Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefits	21193000	USD
CY2020Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefits	18309000	USD
CY2021Q4	us-gaap	Deferred Tax Assets Operating Loss Carryforwards DeferredTaxAssetsOperatingLossCarryforwards	20159000	USD
CY2020Q4	us-gaap	Deferred Tax Assets Operating Loss Carryforwards DeferredTaxAssetsOperatingLossCarryforwards	26126000	USD
CY2021Q4	us-gaap	Deferred Tax Assets Tax Credit Carryforwards DeferredTaxAssetsTaxCreditCarryforwards	7631000	USD
CY2020Q4	us-gaap	Deferred Tax Assets Tax Credit Carryforwards DeferredTaxAssetsTaxCreditCarryforwards	7517000	USD
CY2021Q4	us-gaap	Deferred Tax Assets Operating Loss Carryforwards State And Local DeferredTaxAssetsOperatingLossCarryforwardsStateAndLocal	5179000	USD
CY2020Q4	us-gaap	Deferred Tax Assets Operating Loss Carryforwards State And Local DeferredTaxAssetsOperatingLossCarryforwardsStateAndLocal	5400000	USD
CY2021Q4	banr	Deferred Tax Asset Loan Discount DeferredTaxAssetLoanDiscount	1830000	USD
CY2020Q4	banr	Deferred Tax Asset Loan Discount DeferredTaxAssetLoanDiscount	3365000	USD
CY2021Q4	banr	Deferred Tax Asset Fas115 DeferredTaxAssetFAS115	14136000	USD
CY2020Q4	banr	Deferred Tax Asset Fas115 DeferredTaxAssetFAS115	14088000	USD
CY2021Q4	us-gaap	Deferred Tax Assets Other DeferredTaxAssetsOther	5091000	USD
CY2020Q4	us-gaap	Deferred Tax Assets Other DeferredTaxAssetsOther	9177000	USD
CY2021Q4	us-gaap	Deferred Tax Assets Gross DeferredTaxAssetsGross	109972000	USD
CY2020Q4	us-gaap	Deferred Tax Assets Gross DeferredTaxAssetsGross	127140000	USD
CY2021Q4	us-gaap	Deferred Tax Liabilities Property Plant And Equipment DeferredTaxLiabilitiesPropertyPlantAndEquipment	7119000	USD
CY2020Q4	us-gaap	Deferred Tax Liabilities Property Plant And Equipment DeferredTaxLiabilitiesPropertyPlantAndEquipment	7537000	USD
CY2021Q4	us-gaap	Deferred Tax Liabilities Deferred Expense Deferred Financing Costs DeferredTaxLiabilitiesDeferredExpenseDeferredFinancingCosts	12696000	USD
CY2020Q4	us-gaap	Deferred Tax Liabilities Deferred Expense Deferred Financing Costs DeferredTaxLiabilitiesDeferredExpenseDeferredFinancingCosts	11646000	USD
CY2021Q4	us-gaap	Deferred Tax Liabilities Goodwill And Intangible Assets Intangible Assets DeferredTaxLiabilitiesGoodwillAndIntangibleAssetsIntangibleAssets	4977000	USD
CY2020Q4	us-gaap	Deferred Tax Liabilities Goodwill And Intangible Assets Intangible Assets DeferredTaxLiabilitiesGoodwillAndIntangibleAssetsIntangibleAssets	6278000	USD
CY2021Q4	banr	Deferredtaxliabilitiesrightofuseasset Deferredtaxliabilitiesrightofuseasset	13071000	USD
CY2020Q4	banr	Deferredtaxliabilitiesrightofuseasset Deferredtaxliabilitiesrightofuseasset	13144000	USD
CY2021Q4	banr	Deferred Tax Liability Unrealized Gains On Available For Sale Securities DeferredTaxLiabilityUnrealizedGainsOnAvailableForSaleSecurities	-91000	USD
CY2020Q4	banr	Deferred Tax Liability Unrealized Gains On Available For Sale Securities DeferredTaxLiabilityUnrealizedGainsOnAvailableForSaleSecurities	21662000	USD
CY2021Q4	banr	Deferred Tax Liabilities Financial Instruments Accounted For Under Fair Value Accounting DeferredTaxLiabilitiesFinancialInstrumentsAccountedForUnderFairValueAccounting	878000	USD
CY2020Q4	banr	Deferred Tax Liabilities Financial Instruments Accounted For Under Fair Value Accounting DeferredTaxLiabilitiesFinancialInstrumentsAccountedForUnderFairValueAccounting	947000	USD
CY2021Q4	us-gaap	Deferred Income Tax Liabilities DeferredIncomeTaxLiabilities	38650000	USD
CY2020Q4	us-gaap	Deferred Income Tax Liabilities DeferredIncomeTaxLiabilities	61214000	USD
CY2021Q4	banr	Deferred Tax Asset Gross Net Of Deferred Tax Liabilities DeferredTaxAssetGrossNetOfDeferredTaxLiabilities	71322000	USD
CY2020Q4	banr	Deferred Tax Asset Gross Net Of Deferred Tax Liabilities DeferredTaxAssetGrossNetOfDeferredTaxLiabilities	65926000	USD
CY2021Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	184000	USD
CY2020Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	184000	USD
CY2021Q4	us-gaap	Deferred Tax Assets Liabilities Net DeferredTaxAssetsLiabilitiesNet	71138000	USD
CY2020Q4	us-gaap	Deferred Tax Assets Liabilities Net DeferredTaxAssetsLiabilitiesNet	65742000	USD
CY2021Q4	banr	Operating Loss Carryforwards Amount Expected To Be Utilized On Annual Basis OperatingLossCarryforwardsAmountExpectedToBeUtilizedOnAnnualBasis	6900000	USD
CY2020Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	450000	USD
CY2019Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	275000	USD
CY2021	us-gaap	Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions	365000	USD
CY2020	us-gaap	Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions	0	USD
CY2021	us-gaap	Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions	185000	USD
CY2020	us-gaap	Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions	175000	USD
CY2021Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	1000000	USD
CY2020Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	450000	USD
CY2021Q4	us-gaap	Amortization Method Qualified Affordable Housing Project Investments AmortizationMethodQualifiedAffordableHousingProjectInvestments	56589000	USD
CY2020Q4	us-gaap	Amortization Method Qualified Affordable Housing Project Investments AmortizationMethodQualifiedAffordableHousingProjectInvestments	33528000	USD
CY2021Q4	us-gaap	Qualified Affordable Housing Project Investments Commitment QualifiedAffordableHousingProjectInvestmentsCommitment	31174000	USD
CY2020Q4	us-gaap	Qualified Affordable Housing Project Investments Commitment QualifiedAffordableHousingProjectInvestmentsCommitment	18306000	USD
CY2021	us-gaap	Affordable Housing Tax Credits And Other Tax Benefits Amount AffordableHousingTaxCreditsAndOtherTaxBenefitsAmount	4390000	USD
CY2020	us-gaap	Affordable Housing Tax Credits And Other Tax Benefits Amount AffordableHousingTaxCreditsAndOtherTaxBenefitsAmount	3842000	USD
CY2019	us-gaap	Affordable Housing Tax Credits And Other Tax Benefits Amount AffordableHousingTaxCreditsAndOtherTaxBenefitsAmount	1916000	USD
CY2021	us-gaap	Amortization Method Qualified Affordable Housing Project Investments Amortization AmortizationMethodQualifiedAffordableHousingProjectInvestmentsAmortization	3816000	USD
CY2020	us-gaap	Amortization Method Qualified Affordable Housing Project Investments Amortization AmortizationMethodQualifiedAffordableHousingProjectInvestmentsAmortization	2992000	USD
CY2019	us-gaap	Amortization Method Qualified Affordable Housing Project Investments Amortization AmortizationMethodQualifiedAffordableHousingProjectInvestmentsAmortization	1633000	USD
CY2021	us-gaap	Defined Contribution Plan Cost Recognized DefinedContributionPlanCostRecognized	6500000	USD
CY2020	us-gaap	Defined Contribution Plan Cost Recognized DefinedContributionPlanCostRecognized	6700000	USD
CY2019	us-gaap	Defined Contribution Plan Cost Recognized DefinedContributionPlanCostRecognized	6200000	USD
CY2021	us-gaap	Defined Contribution Plan Employer Matching Contribution Percent DefinedContributionPlanEmployerMatchingContributionPercent	0.04
CY2021Q4	us-gaap	Cash Surrender Value Of Life Insurance CashSurrenderValueOfLifeInsurance	244200000	USD
CY2020Q4	us-gaap	Cash Surrender Value Of Life Insurance CashSurrenderValueOfLifeInsurance	191800000	USD
CY2021Q4	us-gaap	Capital Capital	1663943000	USD
CY2021Q4	us-gaap	Capital To Risk Weighted Assets CapitalToRiskWeightedAssets	0.1471
CY2021Q4	us-gaap	Capital Required For Capital Adequacy CapitalRequiredForCapitalAdequacy	904633000	USD
CY2021Q4	us-gaap	Capital Required For Capital Adequacy To Risk Weighted Assets CapitalRequiredForCapitalAdequacyToRiskWeightedAssets	0.0800
CY2021Q4	us-gaap	Capital Required To Be Well Capitalized CapitalRequiredToBeWellCapitalized	1130791000	USD
CY2021Q4	us-gaap	Tier One Risk Based Capital Required For Capital Adequacy To Risk Weighted Assets TierOneRiskBasedCapitalRequiredForCapitalAdequacyToRiskWeightedAssets	0.0600
CY2021Q4	us-gaap	Tier One Risk Based Capital Required To Be Well Capitalized TierOneRiskBasedCapitalRequiredToBeWellCapitalized	678474000	USD
CY2021Q4	us-gaap	Tier One Risk Based Capital Required To Be Well Capitalized To Risk Weighted Assets TierOneRiskBasedCapitalRequiredToBeWellCapitalizedToRiskWeightedAssets	0.0600
CY2021Q4	us-gaap	Capital Required To Be Well Capitalized To Risk Weighted Assets CapitalRequiredToBeWellCapitalizedToRiskWeightedAssets	0.1000
CY2021Q4	us-gaap	Tier One Risk Based Capital TierOneRiskBasedCapital	1440694000	USD
CY2021Q4	us-gaap	Tier One Risk Based Capital To Risk Weighted Assets TierOneRiskBasedCapitalToRiskWeightedAssets	0.1274
CY2021Q4	us-gaap	Tier One Risk Based Capital Required For Capital Adequacy TierOneRiskBasedCapitalRequiredForCapitalAdequacy	678474000	USD
CY2021Q4	us-gaap	Tier One Leverage Capital TierOneLeverageCapital	1440694000	USD
CY2021Q4	us-gaap	Tier One Leverage Capital To Average Assets TierOneLeverageCapitalToAverageAssets	0.0876
CY2021Q4	us-gaap	Tier One Leverage Capital Required For Capital Adequacy TierOneLeverageCapitalRequiredForCapitalAdequacy	658091000	USD
CY2021Q4	us-gaap	Tier One Leverage Capital Required For Capital Adequacy To Average Assets TierOneLeverageCapitalRequiredForCapitalAdequacyToAverageAssets	0.0400
CY2021Q4	us-gaap	Common Equity Tier One Capital CommonEquityTierOneCapital	1305194000	USD
CY2021Q4	us-gaap	Common Equity Tier One Capital Ratio CommonEquityTierOneCapitalRatio	0.1154
CY2021Q4	us-gaap	Common Equity Tier One Capital Required For Capital Adequacy CommonEquityTierOneCapitalRequiredForCapitalAdequacy	508856000	USD
CY2021Q4	us-gaap	Banking Regulation Common Equity Tier One Risk Based Capital Ratio Capital Adequacy Minimum BankingRegulationCommonEquityTierOneRiskBasedCapitalRatioCapitalAdequacyMinimum	0.0450
CY2020Q4	us-gaap	Capital Capital	1608387000	USD
CY2020Q4	us-gaap	Capital To Risk Weighted Assets CapitalToRiskWeightedAssets	0.1473
CY2020Q4	us-gaap	Capital Required For Capital Adequacy CapitalRequiredForCapitalAdequacy	873472000	USD
CY2020Q4	us-gaap	Capital Required For Capital Adequacy To Risk Weighted Assets CapitalRequiredForCapitalAdequacyToRiskWeightedAssets	0.0800
CY2020Q4	us-gaap	Capital Required To Be Well Capitalized CapitalRequiredToBeWellCapitalized	1091840000	USD
CY2020Q4	us-gaap	Capital Required To Be Well Capitalized To Risk Weighted Assets CapitalRequiredToBeWellCapitalizedToRiskWeightedAssets	0.1000
CY2020Q4	us-gaap	Tier One Risk Based Capital TierOneRiskBasedCapital	1371736000	USD
CY2020Q4	us-gaap	Tier One Risk Based Capital To Risk Weighted Assets TierOneRiskBasedCapitalToRiskWeightedAssets	0.1256
CY2020Q4	us-gaap	Tier One Risk Based Capital Required For Capital Adequacy TierOneRiskBasedCapitalRequiredForCapitalAdequacy	655104000	USD
CY2020Q4	us-gaap	Tier One Risk Based Capital Required For Capital Adequacy To Risk Weighted Assets TierOneRiskBasedCapitalRequiredForCapitalAdequacyToRiskWeightedAssets	0.0600
CY2020Q4	us-gaap	Tier One Risk Based Capital Required To Be Well Capitalized TierOneRiskBasedCapitalRequiredToBeWellCapitalized	655104000	USD
CY2020Q4	us-gaap	Tier One Risk Based Capital Required To Be Well Capitalized To Risk Weighted Assets TierOneRiskBasedCapitalRequiredToBeWellCapitalizedToRiskWeightedAssets	0.0600
CY2020Q4	us-gaap	Tier One Leverage Capital TierOneLeverageCapital	1371736000	USD
CY2020Q4	us-gaap	Tier One Leverage Capital To Average Assets TierOneLeverageCapitalToAverageAssets	0.0950
CY2020Q4	us-gaap	Tier One Leverage Capital Required For Capital Adequacy TierOneLeverageCapitalRequiredForCapitalAdequacy	577331000	USD
CY2020Q4	us-gaap	Tier One Leverage Capital Required For Capital Adequacy To Average Assets TierOneLeverageCapitalRequiredForCapitalAdequacyToAverageAssets	0.0400
CY2020Q4	us-gaap	Common Equity Tier One Capital CommonEquityTierOneCapital	1228236000	USD
CY2020Q4	us-gaap	Common Equity Tier One Capital Ratio CommonEquityTierOneCapitalRatio	0.1125
CY2020Q4	us-gaap	Common Equity Tier One Capital Required For Capital Adequacy CommonEquityTierOneCapitalRequiredForCapitalAdequacy	491328000	USD
CY2020Q4	us-gaap	Banking Regulation Common Equity Tier One Risk Based Capital Ratio Capital Adequacy Minimum BankingRegulationCommonEquityTierOneRiskBasedCapitalRatioCapitalAdequacyMinimum	0.0450
CY2018Q4	us-gaap	Goodwill Goodwill	339154000	USD
CY2018Q4	us-gaap	Intangible Assets Net Including Goodwill IntangibleAssetsNetIncludingGoodwill	372078000	USD
CY2019	us-gaap	Goodwill Acquired During Period GoodwillAcquiredDuringPeriod	33967000	USD
CY2019	banr	Acquired Intangible Assets Including Goodwill AcquiredIntangibleAssetsIncludingGoodwill	38577000	USD
CY2019	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	8151000	USD
CY2019	banr	Finite Lived Intangible Assets Other Changes FiniteLivedIntangibleAssetsOtherChanges	0	USD
CY2019	banr	Intangible Assetsincluding Goodwill Other Changes IntangibleAssetsincludingGoodwillOtherChanges	-225000	USD
CY2019Q4	us-gaap	Goodwill Goodwill	373121000	USD
CY2019Q4	us-gaap	Intangible Assets Net Including Goodwill IntangibleAssetsNetIncludingGoodwill	402279000	USD
CY2021	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	6571000	USD
CY2021Q4	us-gaap	Goodwill Goodwill	373121000	USD
CY2020	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	7732000	USD
CY2020Q4	us-gaap	Goodwill Goodwill	373121000	USD
CY2020Q4	us-gaap	Intangible Assets Net Including Goodwill IntangibleAssetsNetIncludingGoodwill	394547000	USD
CY2021Q4	us-gaap	Intangible Assets Net Including Goodwill IntangibleAssetsNetIncludingGoodwill	387976000	USD
CY2021Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Next Twelve Months FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths	5317000	USD
CY2021Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Two FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo	3814000	USD
CY2021Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Three FiniteLivedIntangibleAssetsAmortizationExpenseYearThree	2659000	USD
CY2021Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Four FiniteLivedIntangibleAssetsAmortizationExpenseYearFour	1575000	USD
CY2021Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Five FiniteLivedIntangibleAssetsAmortizationExpenseYearFive	904000	USD
CY2021Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense After Year Five FiniteLivedIntangibleAssetsAmortizationExpenseAfterYearFive	586000	USD
CY2021Q4	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	14855000	USD
CY2021	us-gaap	Servicing Asset At Amortized Value Additions ServicingAssetAtAmortizedValueAdditions	159000	USD
CY2020	us-gaap	Servicing Asset At Amortized Value Additions ServicingAssetAtAmortizedValueAdditions	175000	USD
CY2019	us-gaap	Servicing Asset At Amortized Value Additions ServicingAssetAtAmortizedValueAdditions	168000	USD
CY2021Q4	us-gaap	Subordinated Debt SubordinatedDebt	98564000	USD
CY2020Q4	us-gaap	Subordinated Debt SubordinatedDebt	98201000	USD
CY2021Q4	us-gaap	Real Estate Acquired Through Foreclosure RealEstateAcquiredThroughForeclosure	852000	USD
CY2021	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	34919188	shares
CY2020	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	35528848	shares
CY2021	us-gaap	Net Income Loss NetIncomeLoss	201048000	USD
CY2020	us-gaap	Net Income Loss NetIncomeLoss	115928000	USD
CY2019	us-gaap	Net Income Loss NetIncomeLoss	146278000	USD
CY2021	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	34610056	shares
CY2020	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	35264252	shares
CY2019	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	34868434	shares
CY2020	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	3.29
CY2019	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	34967684	shares
CY2021	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	5.81
CY2019	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	4.20
CY2021	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	5.76
CY2020	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	3.26
CY2019	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	4.18
CY2021	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	476222	shares
CY2020	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	578136	shares
CY2019	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	367230	shares
CY2021Q4	banr	Reservefor Unfunded Loan Commitments ReserveforUnfundedLoanCommitments	12400000	USD
CY2020Q4	banr	Reservefor Unfunded Loan Commitments ReserveforUnfundedLoanCommitments	13300000	USD
CY2021	banr	Mortgage Loan Applications Day Interest Rate Is Locked MortgageLoanApplicationsDayInterestRateIsLocked	P45D
CY2021Q4	us-gaap	Interest Rate Cash Flow Hedge Gain Loss To Be Reclassified During Next12 Months Net InterestRateCashFlowHedgeGainLossToBeReclassifiedDuringNext12MonthsNet	1800000	USD
CY2021Q4	us-gaap	Derivative Net Liability Position Aggregate Fair Value DerivativeNetLiabilityPositionAggregateFairValue	24900000	USD
CY2020Q4	us-gaap	Derivative Net Liability Position Aggregate Fair Value DerivativeNetLiabilityPositionAggregateFairValue	48600000	USD
CY2021Q4	us-gaap	Collateral Already Posted Aggregate Fair Value CollateralAlreadyPostedAggregateFairValue	45800000	USD
CY2020Q4	us-gaap	Collateral Already Posted Aggregate Fair Value CollateralAlreadyPostedAggregateFairValue	47100000	USD
CY2021Q4	us-gaap	Receivables From Brokers Dealers And Clearing Organizations ReceivablesFromBrokersDealersAndClearingOrganizations	10700000	USD
CY2020Q4	us-gaap	Receivables From Brokers Dealers And Clearing Organizations ReceivablesFromBrokersDealersAndClearingOrganizations	16900000	USD
CY2021Q4	us-gaap	Derivative Fair Value Of Derivative Asset DerivativeFairValueOfDerivativeAsset	20826000	USD
CY2021Q4	us-gaap	Derivative Asset Fair Value Gross Liability DerivativeAssetFairValueGrossLiability	0	USD
CY2021Q4	us-gaap	Derivative Fair Value Of Derivative Asset Amount Not Offset Against Collateral DerivativeFairValueOfDerivativeAssetAmountNotOffsetAgainstCollateral	20826000	USD
CY2021Q4	us-gaap	Derivative Collateral Obligation To Return Securities DerivativeCollateralObligationToReturnSecurities	0	USD
CY2021Q4	us-gaap	Derivative Collateral Obligation To Return Cash DerivativeCollateralObligationToReturnCash	0	USD
CY2021Q4	us-gaap	Derivative Fair Value Of Derivative Asset Amount Offset Against Collateral DerivativeFairValueOfDerivativeAssetAmountOffsetAgainstCollateral	20826000	USD
CY2021Q4	us-gaap	Derivative Fair Value Of Derivative Liability DerivativeFairValueOfDerivativeLiability	11615000	USD
CY2021Q4	us-gaap	Derivative Liability Fair Value Gross Asset DerivativeLiabilityFairValueGrossAsset	0	USD
CY2021Q4	us-gaap	Derivative Fair Value Of Derivative Liability Amount Not Offset Against Collateral DerivativeFairValueOfDerivativeLiabilityAmountNotOffsetAgainstCollateral	11615000	USD
CY2021Q4	us-gaap	Derivative Collateral Right To Reclaim Securities DerivativeCollateralRightToReclaimSecurities	0	USD
CY2021Q4	us-gaap	Derivative Collateral Right To Reclaim Cash DerivativeCollateralRightToReclaimCash	9669000	USD
CY2021Q4	us-gaap	Derivative Fair Value Of Derivative Liability Amount Offset Against Collateral DerivativeFairValueOfDerivativeLiabilityAmountOffsetAgainstCollateral	1946000	USD
CY2020Q4	us-gaap	Derivative Fair Value Of Derivative Asset DerivativeFairValueOfDerivativeAsset	39066000	USD
CY2020Q4	us-gaap	Derivative Asset Fair Value Gross Liability DerivativeAssetFairValueGrossLiability	0	USD
CY2020Q4	us-gaap	Derivative Collateral Obligation To Return Cash DerivativeCollateralObligationToReturnCash	0	USD
CY2020Q4	us-gaap	Derivative Fair Value Of Derivative Asset Amount Not Offset Against Collateral DerivativeFairValueOfDerivativeAssetAmountNotOffsetAgainstCollateral	39066000	USD
CY2020Q4	us-gaap	Derivative Collateral Obligation To Return Securities DerivativeCollateralObligationToReturnSecurities	0	USD
CY2020Q4	us-gaap	Derivative Fair Value Of Derivative Asset Amount Offset Against Collateral DerivativeFairValueOfDerivativeAssetAmountOffsetAgainstCollateral	39066000	USD
CY2020Q4	us-gaap	Derivative Fair Value Of Derivative Liability DerivativeFairValueOfDerivativeLiability	22336000	USD
CY2020Q4	us-gaap	Derivative Liability Fair Value Gross Asset DerivativeLiabilityFairValueGrossAsset	0	USD
CY2020Q4	us-gaap	Derivative Fair Value Of Derivative Liability Amount Not Offset Against Collateral DerivativeFairValueOfDerivativeLiabilityAmountNotOffsetAgainstCollateral	22336000	USD
CY2020Q4	us-gaap	Derivative Collateral Right To Reclaim Securities DerivativeCollateralRightToReclaimSecurities	0	USD
CY2020Q4	us-gaap	Derivative Collateral Right To Reclaim Cash DerivativeCollateralRightToReclaimCash	22220000	USD
CY2020Q4	us-gaap	Derivative Fair Value Of Derivative Liability Amount Offset Against Collateral DerivativeFairValueOfDerivativeLiabilityAmountOffsetAgainstCollateral	116000	USD
CY2021	banr	Debit And Credit Card Interchange Fees DebitAndCreditCardInterchangeFees	23271000	USD
CY2020	banr	Debit And Credit Card Interchange Fees DebitAndCreditCardInterchangeFees	20052000	USD
CY2019Q1	banr	Debit And Credit Card Interchange Fees DebitAndCreditCardInterchangeFees	27752000	USD
CY2021	banr	Debitand Credit Card Expense DebitandCreditCardExpense	-10636000	USD
CY2020	banr	Debitand Credit Card Expense DebitandCreditCardExpense	-9098000	USD
CY2019Q1	banr	Debitand Credit Card Expense DebitandCreditCardExpense	-8527000	USD
CY2021	banr	Merchant Services Expenses MerchantServicesExpenses	-12084000	USD
CY2020	banr	Merchant Services Expenses MerchantServicesExpenses	-10042000	USD
CY2019Q1	banr	Merchant Services Expenses MerchantServicesExpenses	-10512000	USD
CY2021	banr	Other Service Charges OtherServiceCharges	4809000	USD
CY2020	banr	Other Service Charges OtherServiceCharges	4490000	USD
CY2019Q1	banr	Other Service Charges OtherServiceCharges	5572000	USD
CY2021	banr	Total Deposit Feesand Other Service Charges TotalDepositFeesandOtherServiceCharges	39495000	USD
CY2020	banr	Total Deposit Feesand Other Service Charges TotalDepositFeesandOtherServiceCharges	34384000	USD
CY2019Q1	banr	Total Deposit Feesand Other Service Charges TotalDepositFeesandOtherServiceCharges	46632000	USD
CY2021Q4	banr	Operating Leases Numberof Properties Subjectto Noncancelable Operating Leases OperatingLeasesNumberofPropertiesSubjecttoNoncancelableOperatingLeases	98
CY2021Q4	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	55257000	USD
CY2020Q4	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	55367000	USD
CY2021Q4	us-gaap	Operating Lease Liability OperatingLeaseLiability	59756000	USD
CY2020Q4	us-gaap	Operating Lease Liability OperatingLeaseLiability	59343000	USD
CY2021Q4	us-gaap	Operating Lease Weighted Average Remaining Lease Term1 OperatingLeaseWeightedAverageRemainingLeaseTerm1	P5Y6M
CY2020Q4	us-gaap	Operating Lease Weighted Average Remaining Lease Term1 OperatingLeaseWeightedAverageRemainingLeaseTerm1	P5Y9M18D
CY2021Q4	us-gaap	Operating Lease Weighted Average Discount Rate Percent OperatingLeaseWeightedAverageDiscountRatePercent	0.028
CY2020Q4	us-gaap	Operating Lease Weighted Average Discount Rate Percent OperatingLeaseWeightedAverageDiscountRatePercent	0.033
CY2021	us-gaap	Operating Lease Cost OperatingLeaseCost	17541000	USD
CY2020	us-gaap	Operating Lease Cost OperatingLeaseCost	17337000	USD
CY2019	us-gaap	Operating Lease Cost OperatingLeaseCost	15388000	USD
CY2021	us-gaap	Short Term Lease Cost ShortTermLeaseCost	100000	USD
CY2020	us-gaap	Short Term Lease Cost ShortTermLeaseCost	97000	USD
CY2019	us-gaap	Short Term Lease Cost ShortTermLeaseCost	327000	USD
CY2021	us-gaap	Variable Lease Cost VariableLeaseCost	2584000	USD
CY2020	us-gaap	Variable Lease Cost VariableLeaseCost	2778000	USD
CY2019	us-gaap	Variable Lease Cost VariableLeaseCost	2396000	USD
CY2021	us-gaap	Sublease Income SubleaseIncome	904000	USD
CY2020	us-gaap	Sublease Income SubleaseIncome	946000	USD
CY2019	us-gaap	Sublease Income SubleaseIncome	925000	USD
CY2021	us-gaap	Lease Cost LeaseCost	19321000	USD
CY2020	us-gaap	Lease Cost LeaseCost	19266000	USD
CY2019	us-gaap	Lease Cost LeaseCost	17186000	USD
CY2021	us-gaap	Operating Lease Payments OperatingLeasePayments	18000000	USD
CY2020	us-gaap	Operating Lease Payments OperatingLeasePayments	17100000	USD
CY2021	us-gaap	Right Of Use Asset Obtained In Exchange For Operating Lease Liability RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability	16700000	USD
CY2020	us-gaap	Right Of Use Asset Obtained In Exchange For Operating Lease Liability RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability	9200000	USD
CY2021Q4	us-gaap	Lessee Operating Lease Liability Payments Due Next Twelve Months LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths	14393000	USD
CY2021Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Two LesseeOperatingLeaseLiabilityPaymentsDueYearTwo	12952000	USD
CY2021Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Three LesseeOperatingLeaseLiabilityPaymentsDueYearThree	11361000	USD
CY2021Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Four LesseeOperatingLeaseLiabilityPaymentsDueYearFour	9086000	USD
CY2021Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Five LesseeOperatingLeaseLiabilityPaymentsDueYearFive	7260000	USD
CY2021Q4	us-gaap	Lessee Operating Lease Liability Payments Due After Year Five LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive	9569000	USD
CY2021Q4	us-gaap	Lessee Operating Lease Liability Payments Due LesseeOperatingLeaseLiabilityPaymentsDue	64621000	USD
CY2021Q4	us-gaap	Lessee Operating Lease Liability Undiscounted Excess Amount LesseeOperatingLeaseLiabilityUndiscountedExcessAmount	4865000	USD
CY2021Q4	us-gaap	Operating Lease Liability OperatingLeaseLiability	59756000	USD
CY2021Q4	banr	Lessee Operating Lease Lease Not Yet Commenced LesseeOperatingLeaseLeaseNotYetCommenced	353000	USD

Files In Submission

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0000946673-22-000004.txt	Edgar Link	pending
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$BANR
BANNER CORP Stock $banr

2021 Q4 Form 10-K Financial Statement

#000094667322000004 Filed on February 24, 2022

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$BANR BANNER CORP Stock $banr

2021 Q4 Form 10-K Financial Statement

#000094667322000004 Filed on February 24, 2022

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$BANR
BANNER CORP Stock $banr