$BANR
BANNER CORP Stock $banr

$banr Overview Financials Valuation SEC Filings Company Website

2019 Q3 Form 10-Q Financial Statement

#000094667319000021 Filed on November 01, 2019

Income Statement

Concept	2019 Q3	2018 Q4	2018 Q3
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	$6.200M	$6.100M	$5.000M
YoY Change	24.0%	3.39%	-5.66%
% of Gross Profit
Operating Expenses
YoY Change
Operating Profit	$20.86M	$21.02M	$20.40M
YoY Change	2.28%	-24.07%	12.82%
Interest Expense	$14.82M	$11.28M	$8.570M
YoY Change	72.87%	116.5%	69.1%
% of Operating Profit	71.01%	53.69%	42.01%
Other Income/Expense, Net	$6.435M		$6.646M
YoY Change	-3.17%		-2.99%
Pretax Income	$48.18M	$40.58M	$45.86M
YoY Change	5.06%	-2.07%	27.52%
Income Tax	$8.602M	$3.053M	$8.084M
% Of Pretax Income	17.85%	7.52%	17.63%
Net Earnings	$39.58M	$37.53M	$37.77M
YoY Change	4.78%	-377.0%	50.63%
Net Earnings / Revenue
Basic Earnings Per Share	$1.15	$1.10	$1.17
Diluted Earnings Per Share	$1.15	$1.09	$1.17
COMMON SHARES
Basic Shares Outstanding	34.41M shares		32.26M shares
Diluted Shares Outstanding	34.50M shares		32.38M shares

Balance Sheet

Concept	2019 Q3	2018 Q4	2018 Q3
SHORT-TERM ASSETS
Cash & Short-Term Investments
YoY Change
Cash & Equivalents	$324.5M	$272.2M	$248.7M
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	$171.3M	$171.8M	$151.2M
YoY Change	13.27%	10.98%	-5.43%
Goodwill	$339.2M	$339.2M	$242.7M
YoY Change	39.77%	39.77%	-0.79%
Intangibles
YoY Change
Long-Term Investments
YoY Change
Other Assets	$59.00M	$75.00M	$78.00M
YoY Change	-24.36%	5.63%	-34.45%
Total Long-Term Assets
YoY Change
TOTAL ASSETS
Total Short-Term Assets
Total Long-Term Assets
Total Assets	$12.10B	$11.87B	$10.51B
YoY Change	15.06%	21.59%	0.68%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable
YoY Change
Accrued Expenses	$181.0M	$102.0M	$82.00M
YoY Change	120.73%	43.66%	13.89%
Deferred Revenue
YoY Change
Short-Term Debt	$120.0M	$119.0M	$99.00M
YoY Change	21.21%	23.96%	-4.81%
Long-Term Debt Due
YoY Change
Total Short-Term Liabilities	$181.0M	$102.0M	$82.00M
YoY Change	120.73%	43.66%	13.89%
LONG-TERM LIABILITIES
Long-Term Debt	$113.0M	$114.0M	$113.0M
YoY Change	0.0%	15.15%	16.49%
Other Long-Term Liabilities	$42.00M	$41.00M	$41.00M
YoY Change	2.44%	0.0%	0.0%
Total Long-Term Liabilities	$155.0M	$155.0M	$154.0M
YoY Change	0.65%	10.71%	11.59%
TOTAL LIABILITIES
Total Short-Term Liabilities	$181.0M	$102.0M	$82.00M
Total Long-Term Liabilities	$155.0M	$155.0M	$154.0M
Total Liabilities	$10.57B	$10.39B	$9.242B
YoY Change	14.33%	22.4%	1.38%
SHAREHOLDERS EQUITY
Retained Earnings	$203.7M	$134.1M	$109.9M
YoY Change	85.28%	48.07%	-1.31%
Common Stock
YoY Change
Preferred Stock
YoY Change
Treasury Stock (at cost)
YoY Change
Treasury Stock Shares
Shareholders Equity	$1.531B	$1.479B	$1.272B
YoY Change
Total Liabilities & Shareholders Equity	$12.10B	$11.87B	$10.51B
YoY Change	15.06%	21.59%	0.68%

Cashflow Statement

Concept	2019 Q3	2018 Q4	2018 Q3
OPERATING ACTIVITIES
Net Income	$39.58M	$37.53M	$37.77M
YoY Change	4.78%	-377.0%	50.63%
Depreciation, Depletion And Amortization	$6.200M	$6.100M	$5.000M
YoY Change	24.0%	3.39%	-5.66%
Cash From Operating Activities	-$19.50M	-$55.40M	$52.00M
YoY Change	-137.5%	-179.94%	49.43%
INVESTING ACTIVITIES
Capital Expenditures	-$4.900M	-$10.10M	-$3.100M
YoY Change	58.06%	119.57%	40.91%
Acquisitions
YoY Change
Other Investing Activities	-$93.70M	-$183.9M	-$148.9M
YoY Change	-37.07%	-140.06%	-46.19%
Cash From Investing Activities	-$98.60M	-$194.0M	-$152.0M
YoY Change	-35.13%	-142.68%	-45.54%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net
YoY Change
Debt Paid & Issued, Net
YoY Change
Cash From Financing Activities	195.8M	273.0M	99.10M
YoY Change	97.58%	-154.13%	-53.36%
NET CHANGE
Cash From Operating Activities	-19.50M	-55.40M	52.00M
Cash From Investing Activities	-98.60M	-194.0M	-152.0M
Cash From Financing Activities	195.8M	273.0M	99.10M
Net Change In Cash	77.70M	23.60M	-900.0K
YoY Change	-8733.33%	21.03%	-97.17%
FREE CASH FLOW
Cash From Operating Activities	-$19.50M	-$55.40M	$52.00M
Capital Expenditures	-$4.900M	-$10.10M	-$3.100M
Free Cash Flow	-$14.60M	-$45.30M	$55.10M
YoY Change	-126.5%	-161.3%	48.92%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value	Unit
CY2018Q3	banr	Availableforsale Securities Numberof Securitiesin Nonaccrual Status AvailableforsaleSecuritiesNumberofSecuritiesinNonaccrualStatus	0	security
CY2018Q3	banr	Held To Maturity Securities Number Of Securities In Nonaccrual Status HeldToMaturitySecuritiesNumberOfSecuritiesInNonaccrualStatus	0	security
	banr	Held To Maturity Securities Realized Gain Loss Number Of Securities Sold HeldToMaturitySecuritiesRealizedGainLossNumberOfSecuritiesSold	0	security
	banr	Held To Maturity Securities Realized Gain Loss Number Of Securities Sold HeldToMaturitySecuritiesRealizedGainLossNumberOfSecuritiesSold	0	security
	banr	Other Than Temporary Impairment Losses Recoveries Investments Portion Recognized In Earnings Trading Securities OtherThanTemporaryImpairmentLossesRecoveriesInvestmentsPortionRecognizedInEarningsTradingSecurities	0	USD
	banr	Other Than Temporary Impairment Losses Recoveries Investments Portion Recognized In Earnings Trading Securities OtherThanTemporaryImpairmentLossesRecoveriesInvestmentsPortionRecognizedInEarningsTradingSecurities	0	USD
CY2018Q3	banr	Trading Securities Number Of Securities In Nonaccrual Status TradingSecuritiesNumberOfSecuritiesInNonaccrualStatus	0	security
	dei	Amendment Flag AmendmentFlag	false
	dei	Current Fiscal Year End Date CurrentFiscalYearEndDate	--12-31
	dei	Document Fiscal Period Focus DocumentFiscalPeriodFocus	Q3
	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2019
	dei	Entity Central Index Key EntityCentralIndexKey	0000946673
CY2018Q1	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.35
CY2018Q2	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.85
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CY2018Q4	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.38
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	dei	Document Type DocumentType	10-Q
	dei	Document Quarterly Report DocumentQuarterlyReport	true
	dei	Document Period End Date DocumentPeriodEndDate	2019-09-30
	dei	Document Transition Report DocumentTransitionReport	false
	dei	Entity File Number EntityFileNumber	000-26584
	dei	Entity Registrant Name EntityRegistrantName	BANNER CORPORATION
	dei	Entity Incorporation State Country Code EntityIncorporationStateCountryCode	WA
	dei	Entity Tax Identification Number EntityTaxIdentificationNumber	91-1691604
	dei	Entity Address Address Line1 EntityAddressAddressLine1	10 South First Avenue
	dei	Entity Address City Or Town EntityAddressCityOrTown	Walla Walla
	dei	Entity Address State Or Province EntityAddressStateOrProvince	WA
	dei	Entity Address Postal Zip Code EntityAddressPostalZipCode	99362
	dei	City Area Code CityAreaCode	509
	dei	Local Phone Number LocalPhoneNumber	527-3636
	dei	Security12b Title Security12bTitle	Common Stock, par value $.01 per share
	dei	Trading Symbol TradingSymbol	BANR
	dei	Security Exchange Name SecurityExchangeName	NASDAQ
	dei	Entity Current Reporting Status EntityCurrentReportingStatus	Yes
	dei	Entity Interactive Data Current EntityInteractiveDataCurrent	Yes
	dei	Entity Filer Category EntityFilerCategory	Large Accelerated Filer
	dei	Entity Small Business EntitySmallBusiness	false
	dei	Entity Emerging Growth Company EntityEmergingGrowthCompany	false
	dei	Entity Shell Company EntityShellCompany	false
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CY2018Q3	us-gaap	Interest Income Expense After Provision For Loan Loss InterestIncomeExpenseAfterProvisionForLoanLoss	107078000	USD
	us-gaap	Interest Income Expense After Provision For Loan Loss InterestIncomeExpenseAfterProvisionForLoanLoss	343420000	USD
	us-gaap	Interest Income Expense After Provision For Loan Loss InterestIncomeExpenseAfterProvisionForLoanLoss	307514000	USD
CY2019Q3	banr	Total Deposit Feesand Other Service Charges TotalDepositFeesandOtherServiceCharges	10331000	USD
CY2018Q3	banr	Total Deposit Feesand Other Service Charges TotalDepositFeesandOtherServiceCharges	12255000	USD
	banr	Total Deposit Feesand Other Service Charges TotalDepositFeesandOtherServiceCharges	36995000	USD
	banr	Total Deposit Feesand Other Service Charges TotalDepositFeesandOtherServiceCharges	35535000	USD
CY2019Q3	us-gaap	Bank Owned Life Insurance Income BankOwnedLifeInsuranceIncome	1076000	USD
CY2018Q3	us-gaap	Bank Owned Life Insurance Income BankOwnedLifeInsuranceIncome	1726000	USD
	us-gaap	Bank Owned Life Insurance Income BankOwnedLifeInsuranceIncome	3475000	USD
	us-gaap	Bank Owned Life Insurance Income BankOwnedLifeInsuranceIncome	3511000	USD
CY2019Q3	us-gaap	Other Income OtherIncome	2914000	USD
CY2018Q3	us-gaap	Other Income OtherIncome	569000	USD
	us-gaap	Other Income OtherIncome	5431000	USD
	us-gaap	Other Income OtherIncome	4995000	USD
CY2019Q3	us-gaap	Other Operating Income OtherOperatingIncome	20937000	USD
CY2018Q3	us-gaap	Other Operating Income OtherOperatingIncome	20366000	USD
	us-gaap	Other Operating Income OtherOperatingIncome	61868000	USD
	us-gaap	Other Operating Income OtherOperatingIncome	59365000	USD
CY2019Q3	us-gaap	Debt And Equity Securities Gain Loss DebtAndEquitySecuritiesGainLoss	-2000	USD
CY2018Q3	us-gaap	Debt And Equity Securities Gain Loss DebtAndEquitySecuritiesGainLoss	0	USD
	us-gaap	Debt And Equity Securities Gain Loss DebtAndEquitySecuritiesGainLoss	-29000	USD
	us-gaap	Debt And Equity Securities Gain Loss DebtAndEquitySecuritiesGainLoss	48000	USD
CY2019Q3	us-gaap	Increase Decrease In Financial Instruments Used In Operating Activities IncreaseDecreaseInFinancialInstrumentsUsedInOperatingActivities	-69000	USD
CY2018Q3	us-gaap	Increase Decrease In Financial Instruments Used In Operating Activities IncreaseDecreaseInFinancialInstrumentsUsedInOperatingActivities	45000	USD
	us-gaap	Increase Decrease In Financial Instruments Used In Operating Activities IncreaseDecreaseInFinancialInstrumentsUsedInOperatingActivities	-172000	USD
	us-gaap	Increase Decrease In Financial Instruments Used In Operating Activities IncreaseDecreaseInFinancialInstrumentsUsedInOperatingActivities	3577000	USD
CY2019Q3	us-gaap	Operating Income Loss OperatingIncomeLoss	20866000	USD
CY2018Q3	us-gaap	Operating Income Loss OperatingIncomeLoss	20411000	USD
	us-gaap	Operating Income Loss OperatingIncomeLoss	61667000	USD
	us-gaap	Operating Income Loss OperatingIncomeLoss	62990000	USD
CY2019Q3	us-gaap	Labor And Related Expense LaborAndRelatedExpense	59090000	USD
CY2018Q3	us-gaap	Labor And Related Expense LaborAndRelatedExpense	48930000	USD
	us-gaap	Labor And Related Expense LaborAndRelatedExpense	169359000	USD
	us-gaap	Labor And Related Expense LaborAndRelatedExpense	150491000	USD
CY2019Q3	banr	Capitalized Loan Origination Costs CapitalizedLoanOriginationCosts	7889000	USD
CY2018Q3	banr	Capitalized Loan Origination Costs CapitalizedLoanOriginationCosts	4318000	USD
	banr	Capitalized Loan Origination Costs CapitalizedLoanOriginationCosts	20137000	USD
	banr	Capitalized Loan Origination Costs CapitalizedLoanOriginationCosts	13062000	USD
CY2019Q3	us-gaap	Occupancy Net OccupancyNet	12566000	USD
CY2018Q3	us-gaap	Occupancy Net OccupancyNet	12385000	USD
	us-gaap	Occupancy Net OccupancyNet	39013000	USD
	us-gaap	Occupancy Net OccupancyNet	35725000	USD
CY2019Q3	us-gaap	Information Technology And Data Processing InformationTechnologyAndDataProcessing	5657000	USD
CY2018Q3	us-gaap	Information Technology And Data Processing InformationTechnologyAndDataProcessing	4766000	USD
	us-gaap	Information Technology And Data Processing InformationTechnologyAndDataProcessing	16256000	USD
	us-gaap	Information Technology And Data Processing InformationTechnologyAndDataProcessing	13711000	USD
CY2019Q3	banr	Payment And Card Processing Expenses PaymentAndCardProcessingExpenses	4330000	USD
CY2018Q3	banr	Payment And Card Processing Expenses PaymentAndCardProcessingExpenses	3748000	USD
	banr	Payment And Card Processing Expenses PaymentAndCardProcessingExpenses	12355000	USD
	banr	Payment And Card Processing Expenses PaymentAndCardProcessingExpenses	11179000	USD
CY2019Q3	us-gaap	Professional And Contract Services Expense ProfessionalAndContractServicesExpense	2704000	USD
CY2018Q3	us-gaap	Professional And Contract Services Expense ProfessionalAndContractServicesExpense	3010000	USD
	us-gaap	Professional And Contract Services Expense ProfessionalAndContractServicesExpense	7474000	USD
	us-gaap	Professional And Contract Services Expense ProfessionalAndContractServicesExpense	11276000	USD
CY2019Q3	us-gaap	Marketing And Advertising Expense MarketingAndAdvertisingExpense	2221000	USD
CY2018Q3	us-gaap	Marketing And Advertising Expense MarketingAndAdvertisingExpense	1786000	USD
	us-gaap	Marketing And Advertising Expense MarketingAndAdvertisingExpense	5815000	USD
	us-gaap	Marketing And Advertising Expense MarketingAndAdvertisingExpense	5758000	USD
CY2019Q3	us-gaap	Federal Deposit Insurance Corporation Premium Expense FederalDepositInsuranceCorporationPremiumExpense	-1604000	USD
CY2018Q3	us-gaap	Federal Deposit Insurance Corporation Premium Expense FederalDepositInsuranceCorporationPremiumExpense	991000	USD
	us-gaap	Federal Deposit Insurance Corporation Premium Expense FederalDepositInsuranceCorporationPremiumExpense	1232000	USD
	us-gaap	Federal Deposit Insurance Corporation Premium Expense FederalDepositInsuranceCorporationPremiumExpense	3353000	USD
CY2019Q3	us-gaap	Taxes Other TaxesOther	1011000	USD
CY2018Q3	us-gaap	Taxes Other TaxesOther	902000	USD
	us-gaap	Taxes Other TaxesOther	2963000	USD
	us-gaap	Taxes Other TaxesOther	2430000	USD
CY2019Q3	us-gaap	Other Revenue Expense From Real Estate Operations OtherRevenueExpenseFromRealEstateOperations	-126000	USD
CY2018Q3	us-gaap	Other Revenue Expense From Real Estate Operations OtherRevenueExpenseFromRealEstateOperations	-433000	USD
	us-gaap	Other Revenue Expense From Real Estate Operations OtherRevenueExpenseFromRealEstateOperations	-263000	USD
	us-gaap	Other Revenue Expense From Real Estate Operations OtherRevenueExpenseFromRealEstateOperations	-553000	USD
CY2019Q3	banr	Amortization Of Core Deposit Intangible Assets AmortizationOfCoreDepositIntangibleAssets	1985000	USD
CY2018Q3	banr	Amortization Of Core Deposit Intangible Assets AmortizationOfCoreDepositIntangibleAssets	1348000	USD
	banr	Amortization Of Core Deposit Intangible Assets AmortizationOfCoreDepositIntangibleAssets	6090000	USD
	banr	Amortization Of Core Deposit Intangible Assets AmortizationOfCoreDepositIntangibleAssets	4112000	USD
CY2019Q3	us-gaap	Other Expenses OtherExpenses	6435000	USD
CY2018Q3	us-gaap	Other Expenses OtherExpenses	6646000	USD
	us-gaap	Other Expenses OtherExpenses	20230000	USD
	us-gaap	Other Expenses OtherExpenses	19444000	USD
CY2019Q3	banr	Noninterest Operating Expense Before Acquisition Related Costs NoninterestOperatingExpenseBeforeAcquisitionRelatedCosts	86632000	USD
CY2018Q3	banr	Noninterest Operating Expense Before Acquisition Related Costs NoninterestOperatingExpenseBeforeAcquisitionRelatedCosts	80627000	USD
	banr	Noninterest Operating Expense Before Acquisition Related Costs NoninterestOperatingExpenseBeforeAcquisitionRelatedCosts	260913000	USD
	banr	Noninterest Operating Expense Before Acquisition Related Costs NoninterestOperatingExpenseBeforeAcquisitionRelatedCosts	244970000	USD
CY2019Q3	us-gaap	Business Combination Acquisition Related Costs BusinessCombinationAcquisitionRelatedCosts	676000	USD
CY2018Q3	us-gaap	Business Combination Acquisition Related Costs BusinessCombinationAcquisitionRelatedCosts	1005000	USD
	us-gaap	Business Combination Acquisition Related Costs BusinessCombinationAcquisitionRelatedCosts	3125000	USD
	us-gaap	Business Combination Acquisition Related Costs BusinessCombinationAcquisitionRelatedCosts	1005000	USD
CY2019Q3	us-gaap	Noninterest Expense NoninterestExpense	87308000	USD
CY2018Q3	us-gaap	Noninterest Expense NoninterestExpense	81632000	USD
	us-gaap	Noninterest Expense NoninterestExpense	264038000	USD
	us-gaap	Noninterest Expense NoninterestExpense	245975000	USD
CY2019Q3	us-gaap	Income Loss From Continuing Operations Before Income Taxes Domestic IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic	48179000	USD
CY2018Q3	us-gaap	Income Loss From Continuing Operations Before Income Taxes Domestic IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic	45857000	USD
	us-gaap	Income Loss From Continuing Operations Before Income Taxes Domestic IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic	141049000	USD
	us-gaap	Income Loss From Continuing Operations Before Income Taxes Domestic IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic	124529000	USD
CY2019Q3	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	8602000	USD
CY2018Q3	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	8084000	USD
	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	28426000	USD
	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	25542000	USD
CY2019Q3	us-gaap	Net Income Loss NetIncomeLoss	39577000	USD
CY2018Q3	us-gaap	Net Income Loss NetIncomeLoss	37773000	USD
	us-gaap	Net Income Loss NetIncomeLoss	112623000	USD
	us-gaap	Net Income Loss NetIncomeLoss	98987000	USD
CY2019Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.15
CY2018Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.17
	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	3.24
	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	3.06
CY2019Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.15
CY2018Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.17
	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	3.23
	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	3.05
CY2019Q3	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.41
CY2018Q3	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.38
	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	1.23
	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	1.58
CY2019Q3	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	34407462	shares
CY2018Q3	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	32256789	shares
	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	34760607	shares
	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	32300688	shares
CY2019Q3	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	34497994	shares
CY2018Q3	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	32376623	shares
	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	34850006	shares
	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	32406414	shares
CY2019Q3	us-gaap	Net Income Loss NetIncomeLoss	39577000	USD
CY2018Q3	us-gaap	Net Income Loss NetIncomeLoss	37773000	USD
	us-gaap	Net Income Loss NetIncomeLoss	112623000	USD
	us-gaap	Net Income Loss NetIncomeLoss	98987000	USD
CY2019Q3	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Before Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodBeforeTax	5861000	USD
CY2018Q3	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Before Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodBeforeTax	-10010000	USD
	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Before Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodBeforeTax	43268000	USD
	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Before Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodBeforeTax	-33083000	USD
CY2019Q3	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Before Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesBeforeTax	-2000	USD
CY2018Q3	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Before Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesBeforeTax	0	USD
	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Before Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesBeforeTax	-28000	USD
	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Before Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesBeforeTax	51000	USD
CY2019Q3	us-gaap	Other Comprehensive Income Loss Financial Liability Fair Value Option Before Tax After Reclassification Adjustment OtherComprehensiveIncomeLossFinancialLiabilityFairValueOptionBeforeTaxAfterReclassificationAdjustment	204000	USD
CY2018Q3	us-gaap	Other Comprehensive Income Loss Financial Liability Fair Value Option Before Tax After Reclassification Adjustment OtherComprehensiveIncomeLossFinancialLiabilityFairValueOptionBeforeTaxAfterReclassificationAdjustment	-336000	USD
	us-gaap	Other Comprehensive Income Loss Financial Liability Fair Value Option Before Tax After Reclassification Adjustment OtherComprehensiveIncomeLossFinancialLiabilityFairValueOptionBeforeTaxAfterReclassificationAdjustment	674000	USD
	us-gaap	Other Comprehensive Income Loss Financial Liability Fair Value Option Before Tax After Reclassification Adjustment OtherComprehensiveIncomeLossFinancialLiabilityFairValueOptionBeforeTaxAfterReclassificationAdjustment	-14403000	USD
CY2019Q3	us-gaap	Other Comprehensive Income Loss Tax OtherComprehensiveIncomeLossTax	1457000	USD
CY2018Q3	us-gaap	Other Comprehensive Income Loss Tax OtherComprehensiveIncomeLossTax	-2483000	USD
	us-gaap	Other Comprehensive Income Loss Tax OtherComprehensiveIncomeLossTax	10554000	USD
	us-gaap	Other Comprehensive Income Loss Tax OtherComprehensiveIncomeLossTax	-11376000	USD
CY2019Q3	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	4610000	USD
CY2018Q3	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-7863000	USD
	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	33416000	USD
	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-36161000	USD
CY2019Q3	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	44187000	USD
CY2018Q3	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	29910000	USD
	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	146039000	USD
	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	62826000	USD
CY2017Q4	us-gaap	Stockholders Equity StockholdersEquity	1272626000	USD
CY2017Q4	us-gaap	Cumulative Effect Of New Accounting Principle In Period Of Adoption CumulativeEffectOfNewAccountingPrincipleInPeriodOfAdoption	0	USD
CY2018Q1	us-gaap	Net Income Loss NetIncomeLoss	28790000	USD
CY2018Q1	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax	-21777000	USD
CY2018Q1	us-gaap	Stock Repurchased And Retired During Period Value StockRepurchasedAndRetiredDuringPeriodValue	15359000	USD
CY2018Q1	us-gaap	Dividends Common Stock DividendsCommonStock	11349000	USD
CY2018Q1	us-gaap	Adjustments To Additional Paid In Capital Share Based Compensation Restricted Stock Units Requisite Service Period Recognition AdjustmentsToAdditionalPaidInCapitalShareBasedCompensationRestrictedStockUnitsRequisiteServicePeriodRecognition	1192000	USD
CY2018Q1	us-gaap	Stockholders Equity StockholdersEquity	1254123000	USD
CY2018Q1	us-gaap	Stockholders Equity StockholdersEquity	1254123000	USD
CY2018Q2	us-gaap	Net Income Loss NetIncomeLoss	32424000	USD
CY2018Q2	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax	-6521000	USD
CY2018Q2	us-gaap	Dividends Common Stock DividendsCommonStock	27712000	USD
CY2018Q2	us-gaap	Adjustments To Additional Paid In Capital Share Based Compensation Restricted Stock Units Requisite Service Period Recognition AdjustmentsToAdditionalPaidInCapitalShareBasedCompensationRestrictedStockUnitsRequisiteServicePeriodRecognition	696000	USD
CY2018Q2	us-gaap	Stockholders Equity StockholdersEquity	1253010000	USD
CY2018Q2	us-gaap	Stockholders Equity StockholdersEquity	1253010000	USD
CY2018Q3	us-gaap	Net Income Loss NetIncomeLoss	37773000	USD
CY2018Q3	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax	-7863000	USD
CY2018Q3	us-gaap	Dividends Common Stock DividendsCommonStock	12316000	USD
CY2018Q3	us-gaap	Adjustments To Additional Paid In Capital Share Based Compensation Restricted Stock Units Requisite Service Period Recognition AdjustmentsToAdditionalPaidInCapitalShareBasedCompensationRestrictedStockUnitsRequisiteServicePeriodRecognition	1594000	USD
CY2018Q3	us-gaap	Stockholders Equity StockholdersEquity	1272198000	USD
CY2018Q3	us-gaap	Stockholders Equity StockholdersEquity	1272198000	USD
CY2018Q4	us-gaap	Net Income Loss NetIncomeLoss	37527000	USD
CY2018Q4	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax	20098000	USD
CY2018Q4	us-gaap	Dividends Common Stock DividendsCommonStock	13414000	USD
CY2018Q4	us-gaap	Adjustments To Additional Paid In Capital Share Based Compensation Restricted Stock Units Requisite Service Period Recognition AdjustmentsToAdditionalPaidInCapitalShareBasedCompensationRestrictedStockUnitsRequisiteServicePeriodRecognition	1519000	USD
CY2018Q4	us-gaap	Stock Repurchased And Retired During Period Value StockRepurchasedAndRetiredDuringPeriodValue	19042000	USD
CY2018Q4	us-gaap	Stock Issued During Period Value Acquisitions StockIssuedDuringPeriodValueAcquisitions	179709000	USD
CY2018Q4	us-gaap	Stockholders Equity StockholdersEquity	1478595000	USD
CY2018Q4	us-gaap	Stockholders Equity StockholdersEquity	1478595000	USD
CY2019Q1	us-gaap	Net Income Loss NetIncomeLoss	33346000	USD
CY2019Q1	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax	12790000	USD
CY2019Q1	us-gaap	Dividends Common Stock DividendsCommonStock	14490000	USD
CY2019Q1	us-gaap	Adjustments To Additional Paid In Capital Share Based Compensation Restricted Stock Units Requisite Service Period Recognition AdjustmentsToAdditionalPaidInCapitalShareBasedCompensationRestrictedStockUnitsRequisiteServicePeriodRecognition	950000	USD
CY2019Q1	us-gaap	Stockholders Equity StockholdersEquity	1511191000	USD
CY2019Q1	us-gaap	Stockholders Equity StockholdersEquity	1511191000	USD
CY2019Q2	us-gaap	Net Income Loss NetIncomeLoss	39700000	USD
CY2019Q2	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax	16016000	USD
CY2019Q2	us-gaap	Dividends Common Stock DividendsCommonStock	14354000	USD
CY2019Q2	us-gaap	Adjustments To Additional Paid In Capital Share Based Compensation Restricted Stock Units Requisite Service Period Recognition AdjustmentsToAdditionalPaidInCapitalShareBasedCompensationRestrictedStockUnitsRequisiteServicePeriodRecognition	575000	USD
CY2019Q2	us-gaap	Stock Repurchased And Retired During Period Value StockRepurchasedAndRetiredDuringPeriodValue	32073000	USD
CY2019Q2	us-gaap	Stockholders Equity StockholdersEquity	1521055000	USD
CY2019Q2	us-gaap	Stockholders Equity StockholdersEquity	1521055000	USD
CY2019Q3	us-gaap	Net Income Loss NetIncomeLoss	39577000	USD
CY2019Q3	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax	4610000	USD
CY2019Q3	us-gaap	Dividends Common Stock DividendsCommonStock	14130000	USD
CY2019Q3	us-gaap	Adjustments To Additional Paid In Capital Share Based Compensation Restricted Stock Units Requisite Service Period Recognition AdjustmentsToAdditionalPaidInCapitalShareBasedCompensationRestrictedStockUnitsRequisiteServicePeriodRecognition	1672000	USD
CY2019Q3	us-gaap	Stock Repurchased And Retired During Period Value StockRepurchasedAndRetiredDuringPeriodValue	21849000	USD
CY2019Q3	us-gaap	Stockholders Equity StockholdersEquity	1530935000	USD
	us-gaap	Net Income Loss NetIncomeLoss	112623000	USD
	us-gaap	Net Income Loss NetIncomeLoss	98987000	USD
	us-gaap	Depreciation Depreciation	12934000	USD
	us-gaap	Depreciation Depreciation	11014000	USD
	us-gaap	Deferred Revenue Period Increase Decrease DeferredRevenuePeriodIncreaseDecrease	-350000	USD
	us-gaap	Deferred Revenue Period Increase Decrease DeferredRevenuePeriodIncreaseDecrease	-4005000	USD
	banr	Amortization Of Core Deposit Intangible Assets AmortizationOfCoreDepositIntangibleAssets	6090000	USD
	banr	Amortization Of Core Deposit Intangible Assets AmortizationOfCoreDepositIntangibleAssets	4112000	USD
	us-gaap	Debt And Equity Securities Gain Loss DebtAndEquitySecuritiesGainLoss	-29000	USD
	us-gaap	Debt And Equity Securities Gain Loss DebtAndEquitySecuritiesGainLoss	48000	USD
	us-gaap	Increase Decrease In Other Financial Instruments Used In Operating Activities IncreaseDecreaseInOtherFinancialInstrumentsUsedInOperatingActivities	-172000	USD
	us-gaap	Increase Decrease In Other Financial Instruments Used In Operating Activities IncreaseDecreaseInOtherFinancialInstrumentsUsedInOperatingActivities	3577000	USD
	us-gaap	Increase Decrease In Deferred Income Taxes IncreaseDecreaseInDeferredIncomeTaxes	-16136000	USD
	us-gaap	Increase Decrease In Deferred Income Taxes IncreaseDecreaseInDeferredIncomeTaxes	7044000	USD
	us-gaap	Increase Decrease In Accrued Income Taxes Payable IncreaseDecreaseInAccruedIncomeTaxesPayable	3410000	USD
	us-gaap	Increase Decrease In Accrued Income Taxes Payable IncreaseDecreaseInAccruedIncomeTaxesPayable	7227000	USD
	us-gaap	Share Based Compensation ShareBasedCompensation	5101000	USD
	us-gaap	Share Based Compensation ShareBasedCompensation	4844000	USD
	us-gaap	Life Insurance Corporate Or Bank Owned Change In Value LifeInsuranceCorporateOrBankOwnedChangeInValue	3086000	USD
	us-gaap	Life Insurance Corporate Or Bank Owned Change In Value LifeInsuranceCorporateOrBankOwnedChangeInValue	3486000	USD
	us-gaap	Gain Loss On Sales Of Loans Net GainLossOnSalesOfLoansNet	11834000	USD
	us-gaap	Gain Loss On Sales Of Loans Net GainLossOnSalesOfLoansNet	10815000	USD
	us-gaap	Gain Loss On Sale Of Other Assets GainLossOnSaleOfOtherAssets	-1274000	USD
	us-gaap	Gain Loss On Sale Of Other Assets GainLossOnSaleOfOtherAssets	1417000	USD
	us-gaap	Provision For Loan And Lease Losses ProvisionForLoanAndLeaseLosses	6000000	USD
	us-gaap	Provision For Loan And Lease Losses ProvisionForLoanAndLeaseLosses	6000000	USD
	us-gaap	Provision For Loan Lease And Other Losses ProvisionForLoanLeaseAndOtherLosses	0	USD
	us-gaap	Provision For Loan Lease And Other Losses ProvisionForLoanLeaseAndOtherLosses	187000	USD
	us-gaap	Payments For Origination And Purchases Of Loans Held For Sale PaymentsForOriginationAndPurchasesOfLoansHeldForSale	756283000	USD
	us-gaap	Payments For Origination And Purchases Of Loans Held For Sale PaymentsForOriginationAndPurchasesOfLoansHeldForSale	637702000	USD
	us-gaap	Proceeds From Sale Of Loans Held For Sale ProceedsFromSaleOfLoansHeldForSale	694259000	USD
	us-gaap	Proceeds From Sale Of Loans Held For Sale ProceedsFromSaleOfLoansHeldForSale	616393000	USD
	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	26381000	USD
	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	-521000	USD
	us-gaap	Increase Decrease In Other Operating Liabilities IncreaseDecreaseInOtherOperatingLiabilities	8398000	USD
	us-gaap	Increase Decrease In Other Operating Liabilities IncreaseDecreaseInOtherOperatingLiabilities	5269000	USD
	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	68492000	USD
	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	86460000	USD
	us-gaap	Payments To Acquire Available For Sale Securities PaymentsToAcquireAvailableForSaleSecurities	118823000	USD
	us-gaap	Payments To Acquire Available For Sale Securities PaymentsToAcquireAvailableForSaleSecurities	668456000	USD
	us-gaap	Proceeds From Maturities Prepayments And Calls Of Available For Sale Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities	209396000	USD
	us-gaap	Proceeds From Maturities Prepayments And Calls Of Available For Sale Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities	123132000	USD
	us-gaap	Proceeds From Sale Of Available For Sale Securities ProceedsFromSaleOfAvailableForSaleSecurities	43114000	USD
	us-gaap	Proceeds From Sale Of Available For Sale Securities ProceedsFromSaleOfAvailableForSaleSecurities	8363000	USD
	us-gaap	Payments To Acquire Held To Maturity Securities PaymentsToAcquireHeldToMaturitySecurities	42350000	USD
	us-gaap	Payments To Acquire Held To Maturity Securities PaymentsToAcquireHeldToMaturitySecurities	8469000	USD
	us-gaap	Proceeds From Maturities Prepayments And Calls Of Held To Maturity Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfHeldToMaturitySecurities	44971000	USD
	us-gaap	Proceeds From Maturities Prepayments And Calls Of Held To Maturity Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfHeldToMaturitySecurities	8291000	USD
	banr	Loans Originated Netof Principal Collections LoansOriginatedNetofPrincipalCollections	-158754000	USD
	banr	Loans Originated Netof Principal Collections LoansOriginatedNetofPrincipalCollections	-218226000	USD
	us-gaap	Payments To Acquire Loans Receivable PaymentsToAcquireLoansReceivable	8608000	USD
	us-gaap	Payments To Acquire Loans Receivable PaymentsToAcquireLoansReceivable	1748000	USD
	us-gaap	Proceeds From Sale Of Loans Held For Investment ProceedsFromSaleOfLoansHeldForInvestment	16279000	USD
	us-gaap	Proceeds From Sale Of Loans Held For Investment ProceedsFromSaleOfLoansHeldForInvestment	6629000	USD
	banr	Netcashpaidrelatedtobranchdivestiture Netcashpaidrelatedtobranchdivestiture	10382000	USD
	banr	Netcashpaidrelatedtobranchdivestiture Netcashpaidrelatedtobranchdivestiture	20412000	USD
	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	16738000	USD
	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	12982000	USD
	us-gaap	Proceeds From Sale Of Property Plant And Equipment ProceedsFromSaleOfPropertyPlantAndEquipment	6809000	USD
	us-gaap	Proceeds From Sale Of Property Plant And Equipment ProceedsFromSaleOfPropertyPlantAndEquipment	6982000	USD
	us-gaap	Proceeds From Sale Of Federal Home Loan Bank Stock ProceedsFromSaleOfFederalHomeLoanBankStock	130073000	USD
	us-gaap	Proceeds From Sale Of Federal Home Loan Bank Stock ProceedsFromSaleOfFederalHomeLoanBankStock	110078000	USD
	us-gaap	Payments To Acquire Federal Home Loan Bank Stock PaymentsToAcquireFederalHomeLoanBankStock	123740000	USD
	us-gaap	Payments To Acquire Federal Home Loan Bank Stock PaymentsToAcquireFederalHomeLoanBankStock	118940000	USD
	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	-1461000	USD
	banr	Proceedsfrom Repaymentsof Federal Home Loan Bank Borrowings ProceedsfromRepaymentsofFederalHomeLoanBankBorrowings	221000000	USD
	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	-3562000	USD
	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-27292000	USD
	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-782196000	USD
	us-gaap	Increase Decrease In Deposits IncreaseDecreaseInDeposits	266129000	USD
	us-gaap	Increase Decrease In Deposits IncreaseDecreaseInDeposits	522798000	USD
	us-gaap	Proceeds From Federal Home Loan Bank Advances ProceedsFromFederalHomeLoanBankAdvances	300000000	USD
	us-gaap	Proceeds From Federal Home Loan Bank Advances ProceedsFromFederalHomeLoanBankAdvances	0	USD
	us-gaap	Payments For Federal Home Loan Bank Advances PaymentsForFederalHomeLoanBankAdvances	100189000	USD
	us-gaap	Payments For Federal Home Loan Bank Advances PaymentsForFederalHomeLoanBankAdvances	8000	USD
	banr	Proceedsfrom Repaymentsof Federal Home Loan Bank Borrowings ProceedsfromRepaymentsofFederalHomeLoanBankBorrowings	-358000000	USD
	us-gaap	Increase Decrease In Other Loans IncreaseDecreaseInOtherLoans	-1019000	USD
	us-gaap	Increase Decrease In Other Loans IncreaseDecreaseInOtherLoans	-3119000	USD
	us-gaap	Payments Of Dividends PaymentsOfDividends	42073000	USD
	us-gaap	Payments Of Dividends PaymentsOfDividends	46989000	USD
	us-gaap	Payments Related To Tax Withholding For Share Based Compensation PaymentsRelatedToTaxWithholdingForShareBasedCompensation	1904000	USD
	us-gaap	Payments Related To Tax Withholding For Share Based Compensation PaymentsRelatedToTaxWithholdingForShareBasedCompensation	1364000	USD
	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	53922000	USD
	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	15359000	USD
	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	11060000	USD
	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	683197000	USD
	us-gaap	Cash And Cash Equivalents Period Increase Decrease CashAndCashEquivalentsPeriodIncreaseDecrease	52260000	USD
	us-gaap	Cash And Cash Equivalents Period Increase Decrease CashAndCashEquivalentsPeriodIncreaseDecrease	-12539000	USD
CY2018Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	272196000	USD
CY2017Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	261200000	USD
CY2019Q3	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	324456000	USD
CY2018Q3	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	248661000	USD
	us-gaap	Interest Paid InterestPaid	45348000	USD
	us-gaap	Interest Paid InterestPaid	18901000	USD
	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	18220000	USD
	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	13029000	USD
	us-gaap	Transfer To Other Real Estate TransferToOtherRealEstate	246000	USD
	us-gaap	Transfer To Other Real Estate TransferToOtherRealEstate	1451000	USD
CY2019Q3	us-gaap	Dividends Payable Current And Noncurrent DividendsPayableCurrentAndNoncurrent	14679000	USD
CY2018Q3	us-gaap	Dividends Payable Current And Noncurrent DividendsPayableCurrentAndNoncurrent	12654000	USD
CY2019Q3	us-gaap	Held To Maturity Securities Amortized Cost Before Other Than Temporary Impairment HeldToMaturitySecuritiesAmortizedCostBeforeOtherThanTemporaryImpairment	230056000	USD
CY2019Q3	us-gaap	Trading Securities Cost TradingSecuritiesCost	27203000	USD
CY2019Q3	us-gaap	Trading Securities TradingSecurities	25672000	USD
CY2019Q3	us-gaap	Available For Sale Securities Amortized Cost AvailableForSaleSecuritiesAmortizedCost	1508810000	USD
CY2019Q3	us-gaap	Available For Sale Securities Accumulated Gross Unrealized Gain Before Tax AvailableForSaleSecuritiesAccumulatedGrossUnrealizedGainBeforeTax	33730000	USD
CY2019Q3	us-gaap	Available For Sale Securities Accumulated Gross Unrealized Loss Before Tax AvailableForSaleSecuritiesAccumulatedGrossUnrealizedLossBeforeTax	2632000	USD
CY2019Q3	us-gaap	Available For Sale Securities AvailableForSaleSecurities	1539908000	USD
CY2019Q3	us-gaap	Held To Maturity Securities Accumulated Unrecognized Holding Gain HeldToMaturitySecuritiesAccumulatedUnrecognizedHoldingGain	5354000	USD
CY2019Q3	us-gaap	Held To Maturity Securities Accumulated Unrecognized Holding Loss HeldToMaturitySecuritiesAccumulatedUnrecognizedHoldingLoss	1689000	USD
CY2019Q3	us-gaap	Held To Maturity Securities Fair Value HeldToMaturitySecuritiesFairValue	233721000	USD
CY2018Q4	us-gaap	Trading Securities Cost TradingSecuritiesCost	27203000	USD
CY2018Q4	us-gaap	Trading Securities TradingSecurities	25896000	USD
CY2018Q4	us-gaap	Available For Sale Securities Amortized Cost AvailableForSaleSecuritiesAmortizedCost	1648421000	USD
CY2018Q4	us-gaap	Available For Sale Securities Accumulated Gross Unrealized Gain Before Tax AvailableForSaleSecuritiesAccumulatedGrossUnrealizedGainBeforeTax	7171000	USD
CY2018Q4	us-gaap	Available For Sale Securities Accumulated Gross Unrealized Loss Before Tax AvailableForSaleSecuritiesAccumulatedGrossUnrealizedLossBeforeTax	19369000	USD
CY2018Q4	us-gaap	Available For Sale Securities AvailableForSaleSecurities	1636223000	USD
CY2018Q4	us-gaap	Held To Maturity Securities Amortized Cost Before Other Than Temporary Impairment HeldToMaturitySecuritiesAmortizedCostBeforeOtherThanTemporaryImpairment	234220000	USD
CY2018Q4	us-gaap	Held To Maturity Securities Accumulated Unrecognized Holding Gain HeldToMaturitySecuritiesAccumulatedUnrecognizedHoldingGain	1807000	USD
CY2018Q4	us-gaap	Held To Maturity Securities Accumulated Unrecognized Holding Loss HeldToMaturitySecuritiesAccumulatedUnrecognizedHoldingLoss	3490000	USD
CY2018Q4	us-gaap	Held To Maturity Securities Fair Value HeldToMaturitySecuritiesFairValue	232537000	USD
CY2019Q3	us-gaap	Available For Sale Securities Continuous Unrealized Loss Position Less Than Twelve Months Fair Value AvailableForSaleSecuritiesContinuousUnrealizedLossPositionLessThanTwelveMonthsFairValue	223540000	USD
CY2019Q3	us-gaap	Available For Sale Securities Continuous Unrealized Loss Position Less Than12 Months Accumulated Loss AvailableForSaleSecuritiesContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss	1277000	USD
CY2019Q3	us-gaap	Available For Sale Securities Continuous Unrealized Loss Position Twelve Months Or Longer Fair Value AvailableForSaleSecuritiesContinuousUnrealizedLossPositionTwelveMonthsOrLongerFairValue	113126000	USD
CY2019Q3	us-gaap	Available For Sale Securities Continuous Unrealized Loss Position12 Months Or Longer Accumulated Loss AvailableForSaleSecuritiesContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss	1355000	USD
CY2019Q3	us-gaap	Available For Sale Securities Continuous Unrealized Loss Position Fair Value AvailableForSaleSecuritiesContinuousUnrealizedLossPositionFairValue	336666000	USD
CY2019Q3	us-gaap	Available For Sale Securities Continuous Unrealized Loss Position Accumulated Loss AvailableForSaleSecuritiesContinuousUnrealizedLossPositionAccumulatedLoss	2632000	USD
CY2019Q3	us-gaap	Held To Maturity Securities Continuous Unrealized Loss Position Less Than Twelve Months Fair Value HeldToMaturitySecuritiesContinuousUnrealizedLossPositionLessThanTwelveMonthsFairValue	44980000	USD
CY2019Q3	us-gaap	Held To Maturity Securities Continuous Unrealized Loss Position Less Than12 Months Accumulated Loss HeldToMaturitySecuritiesContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss	1316000	USD
CY2019Q3	us-gaap	Held To Maturity Securities Continuous Unrealized Loss Position Twelve Months Or Longer Fair Value HeldToMaturitySecuritiesContinuousUnrealizedLossPositionTwelveMonthsOrLongerFairValue	21106000	USD
CY2019Q3	us-gaap	Held To Maturity Securities Continuous Unrealized Loss Position12 Months Or Longer Accumulated Loss HeldToMaturitySecuritiesContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss	373000	USD
CY2019Q3	us-gaap	Held To Maturity Securities Continuous Unrealized Loss Position Fair Value HeldToMaturitySecuritiesContinuousUnrealizedLossPositionFairValue	66086000	USD
CY2019Q3	us-gaap	Held To Maturity Securities Continuous Unrealized Loss Position Accumulated Loss HeldToMaturitySecuritiesContinuousUnrealizedLossPositionAccumulatedLoss	1689000	USD
CY2018Q4	us-gaap	Available For Sale Securities Continuous Unrealized Loss Position Less Than Twelve Months Fair Value AvailableForSaleSecuritiesContinuousUnrealizedLossPositionLessThanTwelveMonthsFairValue	412162000	USD
CY2018Q4	us-gaap	Available For Sale Securities Continuous Unrealized Loss Position Less Than12 Months Accumulated Loss AvailableForSaleSecuritiesContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss	4313000	USD
CY2018Q4	us-gaap	Available For Sale Securities Continuous Unrealized Loss Position Twelve Months Or Longer Fair Value AvailableForSaleSecuritiesContinuousUnrealizedLossPositionTwelveMonthsOrLongerFairValue	659936000	USD
CY2018Q4	us-gaap	Available For Sale Securities Continuous Unrealized Loss Position12 Months Or Longer Accumulated Loss AvailableForSaleSecuritiesContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss	15056000	USD
CY2018Q4	us-gaap	Available For Sale Securities Continuous Unrealized Loss Position Fair Value AvailableForSaleSecuritiesContinuousUnrealizedLossPositionFairValue	1072098000	USD
CY2018Q4	us-gaap	Available For Sale Securities Continuous Unrealized Loss Position Accumulated Loss AvailableForSaleSecuritiesContinuousUnrealizedLossPositionAccumulatedLoss	19369000	USD
CY2018Q4	us-gaap	Availableforsale Securities In Unrealized Loss Positions Qualitative Disclosure Number Of Positions1 AvailableforsaleSecuritiesInUnrealizedLossPositionsQualitativeDisclosureNumberOfPositions1	271	security
CY2019Q3	us-gaap	Held To Maturity Securities In Unrealized Loss Positions Qualitative Disclosure Number Of Positions HeldToMaturitySecuritiesInUnrealizedLossPositionsQualitativeDisclosureNumberOfPositions	16	security
CY2018Q4	us-gaap	Held To Maturity Securities Continuous Unrealized Loss Position Less Than Twelve Months Fair Value HeldToMaturitySecuritiesContinuousUnrealizedLossPositionLessThanTwelveMonthsFairValue	40804000	USD
CY2018Q4	us-gaap	Held To Maturity Securities Continuous Unrealized Loss Position Less Than12 Months Accumulated Loss HeldToMaturitySecuritiesContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss	495000	USD
CY2018Q4	us-gaap	Held To Maturity Securities Continuous Unrealized Loss Position Twelve Months Or Longer Fair Value HeldToMaturitySecuritiesContinuousUnrealizedLossPositionTwelveMonthsOrLongerFairValue	75159000	USD
CY2018Q4	us-gaap	Held To Maturity Securities Continuous Unrealized Loss Position12 Months Or Longer Accumulated Loss HeldToMaturitySecuritiesContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss	2995000	USD
CY2018Q4	us-gaap	Held To Maturity Securities Continuous Unrealized Loss Position Fair Value HeldToMaturitySecuritiesContinuousUnrealizedLossPositionFairValue	115963000	USD
CY2018Q4	us-gaap	Held To Maturity Securities Continuous Unrealized Loss Position Accumulated Loss HeldToMaturitySecuritiesContinuousUnrealizedLossPositionAccumulatedLoss	3490000	USD
CY2019Q3	us-gaap	Availableforsale Securities In Unrealized Loss Positions Qualitative Disclosure Number Of Positions1 AvailableforsaleSecuritiesInUnrealizedLossPositionsQualitativeDisclosureNumberOfPositions1	90	security
CY2018Q4	us-gaap	Held To Maturity Securities In Unrealized Loss Positions Qualitative Disclosure Number Of Positions HeldToMaturitySecuritiesInUnrealizedLossPositionsQualitativeDisclosureNumberOfPositions	90	security
CY2019Q3	banr	Trading Securities Number Of Securities In Nonaccrual Status TradingSecuritiesNumberOfSecuritiesInNonaccrualStatus	0	security
	us-gaap	Trading Securities Unrealized Holding Loss TradingSecuritiesUnrealizedHoldingLoss	-172000	USD
	us-gaap	Trading Securities Unrealized Holding Gain TradingSecuritiesUnrealizedHoldingGain	3500000	USD
	banr	Available For Sale Securities Gross Realized Gains Losses Number Of Securities Sold AvailableForSaleSecuritiesGrossRealizedGainsLossesNumberOfSecuritiesSold	45	security
	us-gaap	Available For Sale Securities Gross Realized Gain Loss Net AvailableForSaleSecuritiesGrossRealizedGainLossNet	-28000	USD
	us-gaap	Available For Sale Securities Gross Realized Gain Loss Net AvailableForSaleSecuritiesGrossRealizedGainLossNet	51000000	USD
CY2019Q3	banr	Availableforsale Securities Numberof Securitiesin Nonaccrual Status AvailableforsaleSecuritiesNumberofSecuritiesinNonaccrualStatus	0	security
	us-gaap	Heldtomaturity Securities Sold Security Realized Gain Loss Excluding Other Than Temporary Impairments HeldtomaturitySecuritiesSoldSecurityRealizedGainLossExcludingOtherThanTemporaryImpairments	1000	USD
	us-gaap	Heldtomaturity Securities Sold Security Realized Gain Loss Excluding Other Than Temporary Impairments HeldtomaturitySecuritiesSoldSecurityRealizedGainLossExcludingOtherThanTemporaryImpairments	2000000	USD
CY2019Q3	banr	Held To Maturity Securities Number Of Securities In Nonaccrual Status HeldToMaturitySecuritiesNumberOfSecuritiesInNonaccrualStatus	0	security
CY2019Q3	banr	Trading Securities Debt Maturities Next Twelve Months Amortized Cost Basis TradingSecuritiesDebtMaturitiesNextTwelveMonthsAmortizedCostBasis	0	USD
CY2019Q3	banr	Trading Securities Debt Maturities Next Twelve Months Fair Value TradingSecuritiesDebtMaturitiesNextTwelveMonthsFairValue	0	USD
CY2019Q3	us-gaap	Available For Sale Securities Debt Maturities Within One Year Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearAmortizedCost	2421000	USD
CY2019Q3	us-gaap	Available For Sale Securities Debt Maturities Within One Year Fair Value AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearFairValue	2423000	USD
CY2019Q3	us-gaap	Held To Maturity Securities Debt Maturities Within One Year Net Carrying Amount HeldToMaturitySecuritiesDebtMaturitiesWithinOneYearNetCarryingAmount	3339000	USD
CY2019Q3	us-gaap	Held To Maturity Securities Debt Maturities Within One Year Fair Value HeldToMaturitySecuritiesDebtMaturitiesWithinOneYearFairValue	3341000	USD
CY2019Q3	banr	Trading Securities Debt Maturities Year Two Through Five Amortized Cost Basis TradingSecuritiesDebtMaturitiesYearTwoThroughFiveAmortizedCostBasis	0	USD
CY2019Q3	banr	Trading Securities Debt Maturities Year Two Through Five Fair Value TradingSecuritiesDebtMaturitiesYearTwoThroughFiveFairValue	0	USD
CY2019Q3	us-gaap	Available For Sale Securities Debt Maturities After One Through Five Years Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsAmortizedCost	54704000	USD
CY2019Q3	us-gaap	Available For Sale Securities Debt Maturities After One Through Five Years Fair Value AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsFairValue	55751000	USD
CY2019Q3	us-gaap	Held To Maturity Securities Debt Maturities After One Through Five Years Net Carrying Amount HeldToMaturitySecuritiesDebtMaturitiesAfterOneThroughFiveYearsNetCarryingAmount	62060000	USD
CY2019Q3	us-gaap	Held To Maturity Securities Debt Maturities After One Through Five Years Fair Value HeldToMaturitySecuritiesDebtMaturitiesAfterOneThroughFiveYearsFairValue	63122000	USD
CY2019Q3	banr	Trading Securities Debt Maturities Year Six Through Ten Amortized Cost Basis TradingSecuritiesDebtMaturitiesYearSixThroughTenAmortizedCostBasis	0	USD
CY2019Q3	banr	Trading Securities Debt Maturities Year Six Through Ten Fair Value TradingSecuritiesDebtMaturitiesYearSixThroughTenFairValue	0	USD
CY2019Q3	us-gaap	Available For Sale Securities Debt Maturities After Five Through Ten Years Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsAmortizedCost	373474000	USD
CY2019Q3	us-gaap	Available For Sale Securities Debt Maturities After Five Through Ten Years Fair Value AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsFairValue	388323000	USD
CY2019Q3	us-gaap	Held To Maturity Securities Debt Maturities After Five Through Ten Years Net Carrying Amount HeldToMaturitySecuritiesDebtMaturitiesAfterFiveThroughTenYearsNetCarryingAmount	43592000	USD
CY2019Q3	us-gaap	Held To Maturity Securities Debt Maturities After Five Through Ten Years Fair Value HeldToMaturitySecuritiesDebtMaturitiesAfterFiveThroughTenYearsFairValue	45338000	USD
CY2019Q3	banr	Trading Securities Debt Maturities Year Eleven Through Twenty Amortized Cost Basis TradingSecuritiesDebtMaturitiesYearElevenThroughTwentyAmortizedCostBasis	27203000	USD
CY2019Q3	banr	Trading Securities Debt Maturities Year Eleven Through Twenty Fair Value TradingSecuritiesDebtMaturitiesYearElevenThroughTwentyFairValue	25672000	USD
CY2019Q3	banr	Available For Sale Securities Debt Maturities Year Eleven Through Twenty Amortized Cost Basis AvailableForSaleSecuritiesDebtMaturitiesYearElevenThroughTwentyAmortizedCostBasis	228067000	USD
CY2019Q3	banr	Available For Sale Securities Debt Maturities Year Eleven Through Twenty Fair Value AvailableForSaleSecuritiesDebtMaturitiesYearElevenThroughTwentyFairValue	234354000	USD
CY2019Q3	banr	Held To Maturity Securities Debt Maturities After Eleven Through Twenty Years Net Carrying Amount HeldToMaturitySecuritiesDebtMaturitiesAfterElevenThroughTwentyYearsNetCarryingAmount	91041000	USD
CY2019Q3	banr	Held To Maturity Securities Debt Maturities Year Eleven Through Twenty Fair Value HeldToMaturitySecuritiesDebtMaturitiesYearElevenThroughTwentyFairValue	92108000	USD
CY2019Q3	banr	Trading Securities Debt Maturities After Twenty Years Amortized Cost Basis TradingSecuritiesDebtMaturitiesAfterTwentyYearsAmortizedCostBasis	0	USD
CY2019Q3	banr	Trading Securities Debt Maturities After Twenty Years Fair Value TradingSecuritiesDebtMaturitiesAfterTwentyYearsFairValue	0	USD
CY2019Q3	banr	Available For Sale Securities Debt Maturities After Twenty Years Amortized Cost Basis AvailableForSaleSecuritiesDebtMaturitiesAfterTwentyYearsAmortizedCostBasis	850144000	USD
CY2019Q3	banr	Available For Sale Securities Debt Maturities After Twenty Years Fair Value AvailableForSaleSecuritiesDebtMaturitiesAfterTwentyYearsFairValue	859057000	USD
CY2019Q3	banr	Held To Maturity Securities Debt Maturities After Twenty Years Net Carrying Amount HeldToMaturitySecuritiesDebtMaturitiesAfterTwentyYearsNetCarryingAmount	30024000	USD
CY2019Q3	banr	Held To Maturity Securities Debt Maturities After Twenty Years Fair Value HeldToMaturitySecuritiesDebtMaturitiesAfterTwentyYearsFairValue	29812000	USD
CY2019Q3	us-gaap	Trading Securities Cost TradingSecuritiesCost	27203000	USD
CY2019Q3	us-gaap	Trading Securities TradingSecurities	25672000	USD
CY2019Q3	us-gaap	Available For Sale Securities Amortized Cost AvailableForSaleSecuritiesAmortizedCost	1508810000	USD
CY2019Q3	us-gaap	Available For Sale Securities AvailableForSaleSecurities	1539908000	USD
CY2019Q3	us-gaap	Held To Maturity Securities HeldToMaturitySecurities	230056000	USD
CY2019Q3	us-gaap	Held To Maturity Securities Fair Value HeldToMaturitySecuritiesFairValue	233721000	USD
CY2019Q3	banr	Pledged Financial Instruments Not Separately Reported Securitiesfor Stateand Local Government Public Deposits PledgedFinancialInstrumentsNotSeparatelyReportedSecuritiesforStateandLocalGovernmentPublicDeposits	137911000	USD
CY2019Q3	banr	Pledged Financial Instruments Not Separately Reported Securitiesfor Stateand Local Government Public Deposits Amortized Cost PledgedFinancialInstrumentsNotSeparatelyReportedSecuritiesforStateandLocalGovernmentPublicDepositsAmortizedCost	137163000	USD
CY2019Q3	banr	Pledged Financial Instruments Not Separately Reported Securitiesfor Stateand Local Government Public Deposits Fair Value PledgedFinancialInstrumentsNotSeparatelyReportedSecuritiesforStateandLocalGovernmentPublicDepositsFairValue	141588000	USD
CY2019Q3	banr	Pledged Financial Instruments Not Separately Reported Securitiesfor Interest Rate Swap Counterparties PledgedFinancialInstrumentsNotSeparatelyReportedSecuritiesforInterestRateSwapCounterparties	21849000	USD
CY2019Q3	banr	Pledged Financial Instruments Not Separately Reported Securities For Interest Rate Swap Counterparties Amortized Cost PledgedFinancialInstrumentsNotSeparatelyReportedSecuritiesForInterestRateSwapCounterpartiesAmortizedCost	21427000	USD
CY2019Q3	banr	Pledged Financial Instruments Not Separately Reported Securities For Interest Rate Swap Counterparties Fair Value PledgedFinancialInstrumentsNotSeparatelyReportedSecuritiesForInterestRateSwapCounterpartiesFairValue	22077000	USD
CY2019Q3	us-gaap	Pledged Financial Instruments Not Separately Reported Securities For Repurchase Agreements PledgedFinancialInstrumentsNotSeparatelyReportedSecuritiesForRepurchaseAgreements	151110000	USD
CY2019Q3	banr	Pledged Financial Instruments Not Separately Reported Securities For Repurchase Agreements Amortized Cost PledgedFinancialInstrumentsNotSeparatelyReportedSecuritiesForRepurchaseAgreementsAmortizedCost	149253000	USD
CY2019Q3	banr	Pledged Financial Instruments Not Separately Reported Securities For Repurchase Agreements Fair Value PledgedFinancialInstrumentsNotSeparatelyReportedSecuritiesForRepurchaseAgreementsFairValue	151110000	USD
CY2019Q3	banr	Pledged Financial Instruments Not Separately Reported Interestbearing Depositsfor Other Debt Facilities PledgedFinancialInstrumentsNotSeparatelyReportedInterestbearingDepositsforOtherDebtFacilities	2702000	USD
CY2019Q3	banr	Pledged Financial Instruments Not Separately Reported Securities Amortized Cost PledgedFinancialInstrumentsNotSeparatelyReportedSecuritiesAmortizedCost	310545000	USD
CY2019Q3	banr	Pledged Financial Instruments Not Separately Reported Securities Fair Value PledgedFinancialInstrumentsNotSeparatelyReportedSecuritiesFairValue	317474000	USD
CY2019Q3	banr	Pledged Financial Instruments Not Separately Reported Interestbearing Depositsfor Other Debt Facilities Amortized Cost PledgedFinancialInstrumentsNotSeparatelyReportedInterestbearingDepositsforOtherDebtFacilitiesAmortizedCost	2702000	USD
CY2019Q3	banr	Pledged Financial Instruments Not Separately Reported Interestbearing Depositsfor Other Debt Facilities Fair Value PledgedFinancialInstrumentsNotSeparatelyReportedInterestbearingDepositsforOtherDebtFacilitiesFairValue	2699000	USD
CY2019Q3	us-gaap	Pledged Financial Instruments Not Separately Reported Securities Pledged PledgedFinancialInstrumentsNotSeparatelyReportedSecuritiesPledged	313572000	USD
CY2019Q3	us-gaap	Loans And Leases Receivable Gross Carrying Amount LoansAndLeasesReceivableGrossCarryingAmount	8835368000	USD
CY2019Q3	banr	Loans Receivable Loan Percentage Of Total LoansReceivableLoanPercentageOfTotal	1.000
CY2018Q4	us-gaap	Loans And Leases Receivable Gross Carrying Amount LoansAndLeasesReceivableGrossCarryingAmount	8684595000	USD
CY2018Q4	banr	Loans Receivable Loan Percentage Of Total LoansReceivableLoanPercentageOfTotal	1.000
CY2019Q3	us-gaap	Loans And Leases Receivable Allowance LoansAndLeasesReceivableAllowance	97801000	USD
CY2018Q4	us-gaap	Loans And Leases Receivable Allowance LoansAndLeasesReceivableAllowance	96485000	USD
CY2019Q3	us-gaap	Loans And Leases Receivable Net Reported Amount LoansAndLeasesReceivableNetReportedAmount	8737567000	USD
CY2018Q4	us-gaap	Loans And Leases Receivable Net Reported Amount LoansAndLeasesReceivableNetReportedAmount	8588110000	USD
CY2019Q3	us-gaap	Unamortized Loan Commitment And Origination Fees And Unamortized Discounts Or Premiums UnamortizedLoanCommitmentAndOriginationFeesAndUnamortizedDiscountsOrPremiums	43000	USD
CY2018Q4	us-gaap	Unamortized Loan Commitment And Origination Fees And Unamortized Discounts Or Premiums UnamortizedLoanCommitmentAndOriginationFeesAndUnamortizedDiscountsOrPremiums	-1400000	USD
CY2019Q3	us-gaap	Receivable With Imputed Interest Discount ReceivableWithImputedInterestDiscount	21300000	USD
CY2018Q4	us-gaap	Receivable With Imputed Interest Discount ReceivableWithImputedInterestDiscount	25700000	USD
CY2019Q3	us-gaap	Certain Loans Acquired In Transfer Not Accounted For As Debt Securities Outstanding Balance CertainLoansAcquiredInTransferNotAccountedForAsDebtSecuritiesOutstandingBalance	19700000	USD
CY2018Q4	us-gaap	Certain Loans Acquired In Transfer Not Accounted For As Debt Securities Outstanding Balance CertainLoansAcquiredInTransferNotAccountedForAsDebtSecuritiesOutstandingBalance	22000000.0	USD
CY2019Q3	us-gaap	Certain Loans Acquired In Transfer Not Accounted For As Debt Securities Carrying Amount Net CertainLoansAcquiredInTransferNotAccountedForAsDebtSecuritiesCarryingAmountNet	12600000	USD
CY2018Q4	us-gaap	Certain Loans Acquired In Transfer Not Accounted For As Debt Securities Carrying Amount Net CertainLoansAcquiredInTransferNotAccountedForAsDebtSecuritiesCarryingAmountNet	14400000	USD
CY2019Q2	us-gaap	Certain Loans Acquired In Transfer Not Accounted For As Debt Securities Accretable Yield CertainLoansAcquiredInTransferNotAccountedForAsDebtSecuritiesAccretableYield	4743000	USD
CY2018Q2	us-gaap	Certain Loans Acquired In Transfer Not Accounted For As Debt Securities Accretable Yield CertainLoansAcquiredInTransferNotAccountedForAsDebtSecuritiesAccretableYield	6109000	USD
CY2018Q4	us-gaap	Certain Loans Acquired In Transfer Not Accounted For As Debt Securities Accretable Yield CertainLoansAcquiredInTransferNotAccountedForAsDebtSecuritiesAccretableYield	5216000	USD
CY2017Q4	us-gaap	Certain Loans Acquired In Transfer Not Accounted For As Debt Securities Accretable Yield CertainLoansAcquiredInTransferNotAccountedForAsDebtSecuritiesAccretableYield	6520000	USD
CY2019Q3	us-gaap	Certain Loans Acquired In Transfer Not Accounted For As Debt Securities Accretable Yield Accretion CertainLoansAcquiredInTransferNotAccountedForAsDebtSecuritiesAccretableYieldAccretion	423000	USD
CY2018Q3	us-gaap	Certain Loans Acquired In Transfer Not Accounted For As Debt Securities Accretable Yield Accretion CertainLoansAcquiredInTransferNotAccountedForAsDebtSecuritiesAccretableYieldAccretion	2907000	USD
	us-gaap	Certain Loans Acquired In Transfer Not Accounted For As Debt Securities Accretable Yield Accretion CertainLoansAcquiredInTransferNotAccountedForAsDebtSecuritiesAccretableYieldAccretion	1372000	USD
	us-gaap	Certain Loans Acquired In Transfer Not Accounted For As Debt Securities Accretable Yield Accretion CertainLoansAcquiredInTransferNotAccountedForAsDebtSecuritiesAccretableYieldAccretion	4738000	USD
CY2019Q3	us-gaap	Certain Loans Acquired In Transfer Not Accounted For As Debt Securities Accretable Yield Disposals Of Loans CertainLoansAcquiredInTransferNotAccountedForAsDebtSecuritiesAccretableYieldDisposalsOfLoans	0	USD
CY2018Q3	us-gaap	Certain Loans Acquired In Transfer Not Accounted For As Debt Securities Accretable Yield Disposals Of Loans CertainLoansAcquiredInTransferNotAccountedForAsDebtSecuritiesAccretableYieldDisposalsOfLoans	0	USD
	us-gaap	Certain Loans Acquired In Transfer Not Accounted For As Debt Securities Accretable Yield Disposals Of Loans CertainLoansAcquiredInTransferNotAccountedForAsDebtSecuritiesAccretableYieldDisposalsOfLoans	0	USD
CY2019Q3	us-gaap	Impaired Financing Receivable Unpaid Principal Balance ImpairedFinancingReceivableUnpaidPrincipalBalance	27891000	USD
CY2019Q3	us-gaap	Impaired Financing Receivable With No Related Allowance Recorded Investment ImpairedFinancingReceivableWithNoRelatedAllowanceRecordedInvestment	19332000	USD
	us-gaap	Certain Loans Acquired In Transfer Not Accounted For As Debt Securities Accretable Yield Disposals Of Loans CertainLoansAcquiredInTransferNotAccountedForAsDebtSecuritiesAccretableYieldDisposalsOfLoans	58000	USD
CY2019Q3	us-gaap	Certain Loans Acquired In Transfer Not Accounted For As Debt Securities Accretable Yield Reclassifications From Nonaccretable Difference CertainLoansAcquiredInTransferNotAccountedForAsDebtSecuritiesAccretableYieldReclassificationsFromNonaccretableDifference	11000	USD
CY2019Q3	us-gaap	Impaired Financing Receivable With Related Allowance Recorded Investment ImpairedFinancingReceivableWithRelatedAllowanceRecordedInvestment	5645000	USD
CY2019Q3	us-gaap	Impaired Financing Receivable Related Allowance ImpairedFinancingReceivableRelatedAllowance	288000	USD
CY2018Q4	us-gaap	Impaired Financing Receivable Unpaid Principal Balance ImpairedFinancingReceivableUnpaidPrincipalBalance	31813000	USD
CY2018Q4	us-gaap	Impaired Financing Receivable With No Related Allowance Recorded Investment ImpairedFinancingReceivableWithNoRelatedAllowanceRecordedInvestment	17765000	USD
CY2018Q4	us-gaap	Impaired Financing Receivable With Related Allowance Recorded Investment ImpairedFinancingReceivableWithRelatedAllowanceRecordedInvestment	11311000	USD
CY2018Q4	us-gaap	Impaired Financing Receivable Related Allowance ImpairedFinancingReceivableRelatedAllowance	416000	USD
CY2018Q3	us-gaap	Certain Loans Acquired In Transfer Not Accounted For As Debt Securities Accretable Yield Reclassifications From Nonaccretable Difference CertainLoansAcquiredInTransferNotAccountedForAsDebtSecuritiesAccretableYieldReclassificationsFromNonaccretableDifference	1873000	USD
	us-gaap	Certain Loans Acquired In Transfer Not Accounted For As Debt Securities Accretable Yield Reclassifications From Nonaccretable Difference CertainLoansAcquiredInTransferNotAccountedForAsDebtSecuritiesAccretableYieldReclassificationsFromNonaccretableDifference	487000	USD
	us-gaap	Certain Loans Acquired In Transfer Not Accounted For As Debt Securities Accretable Yield Reclassifications From Nonaccretable Difference CertainLoansAcquiredInTransferNotAccountedForAsDebtSecuritiesAccretableYieldReclassificationsFromNonaccretableDifference	3235000	USD
CY2019Q3	us-gaap	Certain Loans Acquired In Transfer Not Accounted For As Debt Securities Accretable Yield CertainLoansAcquiredInTransferNotAccountedForAsDebtSecuritiesAccretableYield	4331000	USD
CY2018Q3	us-gaap	Certain Loans Acquired In Transfer Not Accounted For As Debt Securities Accretable Yield CertainLoansAcquiredInTransferNotAccountedForAsDebtSecuritiesAccretableYield	5075000	USD
CY2019Q3	us-gaap	Certain Loans Acquired In Transfer Not Accounted For As Debt Securities Accretable Yield CertainLoansAcquiredInTransferNotAccountedForAsDebtSecuritiesAccretableYield	4331000	USD
CY2018Q3	us-gaap	Certain Loans Acquired In Transfer Not Accounted For As Debt Securities Accretable Yield CertainLoansAcquiredInTransferNotAccountedForAsDebtSecuritiesAccretableYield	5075000	USD
CY2019Q3	us-gaap	Certain Loans Acquired In Transfer Nonaccretable Difference CertainLoansAcquiredInTransferNonaccretableDifference	6300000	USD
CY2018Q4	banr	Certain Loans Acquiredin Transfer Not Accountedforas Debt Securities Nonaccretable Difference CertainLoansAcquiredinTransferNotAccountedforasDebtSecuritiesNonaccretableDifference	7100000	USD
CY2019Q3	us-gaap	Impaired Financing Receivable Average Recorded Investment ImpairedFinancingReceivableAverageRecordedInvestment	25106000	USD
CY2019Q3	us-gaap	Impaired Financing Receivable Interest Income Accrual Method ImpairedFinancingReceivableInterestIncomeAccrualMethod	111000	USD
CY2018Q3	us-gaap	Impaired Financing Receivable Average Recorded Investment ImpairedFinancingReceivableAverageRecordedInvestment	28978000	USD
CY2018Q3	us-gaap	Impaired Financing Receivable Interest Income Accrual Method ImpairedFinancingReceivableInterestIncomeAccrualMethod	193000	USD
	us-gaap	Impaired Financing Receivable Average Recorded Investment ImpairedFinancingReceivableAverageRecordedInvestment	28036000	USD
	us-gaap	Impaired Financing Receivable Interest Income Accrual Method ImpairedFinancingReceivableInterestIncomeAccrualMethod	413000	USD
	us-gaap	Impaired Financing Receivable Average Recorded Investment ImpairedFinancingReceivableAverageRecordedInvestment	33191000	USD
	us-gaap	Impaired Financing Receivable Interest Income Accrual Method ImpairedFinancingReceivableInterestIncomeAccrualMethod	605000	USD
CY2019Q3	banr	Financing Receivable Modifications Accrual Status FinancingReceivableModificationsAccrualStatus	6721000	USD
CY2019Q3	banr	Financing Receivable Modifications Nonaccrual Status FinancingReceivableModificationsNonaccrualStatus	1526000	USD
CY2019Q3	us-gaap	Financing Receivable Modifications Recorded Investment FinancingReceivableModificationsRecordedInvestment	8247000	USD
CY2018Q4	banr	Financing Receivable Modifications Accrual Status FinancingReceivableModificationsAccrualStatus	13422000	USD
CY2018Q4	banr	Financing Receivable Modifications Nonaccrual Status FinancingReceivableModificationsNonaccrualStatus	317000	USD
CY2018Q4	us-gaap	Financing Receivable Modifications Recorded Investment FinancingReceivableModificationsRecordedInvestment	13739000	USD
CY2019Q3	banr	Financing Receivable Modifications Commitments To Advance Funds FinancingReceivableModificationsCommitmentsToAdvanceFunds	27000	USD
CY2018Q4	banr	Financing Receivable Modifications Commitments To Advance Funds FinancingReceivableModificationsCommitmentsToAdvanceFunds	0	USD
	us-gaap	Financing Receivable Modifications Number Of Contracts2 FinancingReceivableModificationsNumberOfContracts2	0	contract
	us-gaap	Financing Receivable Modifications Number Of Contracts2 FinancingReceivableModificationsNumberOfContracts2	3	contract
	us-gaap	Financing Receivable Modifications Pre Modification Recorded Investment2 FinancingReceivableModificationsPreModificationRecordedInvestment2	1846000	USD
	us-gaap	Financing Receivable Modifications Post Modification Recorded Investment2 FinancingReceivableModificationsPostModificationRecordedInvestment2	1846000	USD
CY2019Q3	us-gaap	Loans And Leases Receivable Gross Carrying Amount LoansAndLeasesReceivableGrossCarryingAmount	8835368000	USD
CY2018Q4	us-gaap	Loans And Leases Receivable Gross Carrying Amount LoansAndLeasesReceivableGrossCarryingAmount	8684595000	USD
CY2019Q3	us-gaap	Financing Receivable Recorded Investment Past Due FinancingReceivableRecordedInvestmentPastDue	24419000	USD
CY2019Q3	us-gaap	Certain Loans Acquired In Transfer Not Accounted For As Debt Securities Carrying Amount Net CertainLoansAcquiredInTransferNotAccountedForAsDebtSecuritiesCarryingAmountNet	12575000	USD
CY2019Q3	us-gaap	Financing Receivable Recorded Investment Current FinancingReceivableRecordedInvestmentCurrent	8798374000	USD
CY2019Q3	us-gaap	Loans And Leases Receivable Gross Carrying Amount LoansAndLeasesReceivableGrossCarryingAmount	8835368000	USD
CY2019Q3	us-gaap	Financing Receivable Recorded Investment90 Days Past Due And Still Accruing FinancingReceivableRecordedInvestment90DaysPastDueAndStillAccruing	2487000	USD
CY2019Q3	us-gaap	Financing Receivable Recorded Investment Nonaccrual Status FinancingReceivableRecordedInvestmentNonaccrualStatus	15769000	USD
CY2018Q4	us-gaap	Financing Receivable Recorded Investment Past Due FinancingReceivableRecordedInvestmentPastDue	38202000	USD
CY2018Q4	us-gaap	Certain Loans Acquired In Transfer Not Accounted For As Debt Securities Carrying Amount Net CertainLoansAcquiredInTransferNotAccountedForAsDebtSecuritiesCarryingAmountNet	14413000	USD
CY2018Q4	us-gaap	Financing Receivable Recorded Investment Current FinancingReceivableRecordedInvestmentCurrent	8631980000	USD
CY2018Q4	us-gaap	Loans And Leases Receivable Gross Carrying Amount LoansAndLeasesReceivableGrossCarryingAmount	8684595000	USD
CY2018Q4	us-gaap	Financing Receivable Recorded Investment90 Days Past Due And Still Accruing FinancingReceivableRecordedInvestment90DaysPastDueAndStillAccruing	906000	USD
CY2018Q4	us-gaap	Financing Receivable Recorded Investment Nonaccrual Status FinancingReceivableRecordedInvestmentNonaccrualStatus	14748000	USD
CY2019Q2	us-gaap	Loans And Leases Receivable Allowance LoansAndLeasesReceivableAllowance	98254000	USD
CY2019Q3	us-gaap	Provision For Loan And Lease Losses ProvisionForLoanAndLeaseLosses	2000000	USD
CY2019Q3	us-gaap	Financing Receivable Allowance For Credit Losses Recovery FinancingReceivableAllowanceForCreditLossesRecovery	710000	USD
CY2019Q3	us-gaap	Financing Receivable Allowance For Credit Losses Write Offs FinancingReceivableAllowanceForCreditLossesWriteOffs	3163000	USD
CY2019Q3	us-gaap	Loans And Leases Receivable Allowance LoansAndLeasesReceivableAllowance	97801000	USD
CY2018Q4	us-gaap	Loans And Leases Receivable Allowance LoansAndLeasesReceivableAllowance	96485000	USD
	us-gaap	Provision For Loan And Lease Losses ProvisionForLoanAndLeaseLosses	6000000	USD
	us-gaap	Financing Receivable Allowance For Credit Losses Recovery FinancingReceivableAllowanceForCreditLossesRecovery	1811000	USD
	us-gaap	Financing Receivable Allowance For Credit Losses Write Offs FinancingReceivableAllowanceForCreditLossesWriteOffs	6495000	USD
CY2019Q3	us-gaap	Loans And Leases Receivable Allowance LoansAndLeasesReceivableAllowance	97801000	USD
CY2019Q3	us-gaap	Financing Receivable Allowance For Credit Losses Individually Evaluated For Impairment1 FinancingReceivableAllowanceForCreditLossesIndividuallyEvaluatedForImpairment1	288000	USD
CY2019Q3	us-gaap	Financing Receivable Allowance For Credit Losses Collectively Evaluated For Impairment FinancingReceivableAllowanceForCreditLossesCollectivelyEvaluatedForImpairment	97439000	USD
CY2019Q3	us-gaap	Certain Loans Acquired In Transfer Not Accounted For As Debt Securities Allowance For Loan Losses CertainLoansAcquiredInTransferNotAccountedForAsDebtSecuritiesAllowanceForLoanLosses	74000	USD
CY2019Q3	us-gaap	Loans And Leases Receivable Allowance LoansAndLeasesReceivableAllowance	97801000	USD
CY2019Q3	us-gaap	Financing Receivable Individually Evaluated For Impairment FinancingReceivableIndividuallyEvaluatedForImpairment	12352000	USD
CY2019Q3	us-gaap	Financing Receivable Collectively Evaluated For Impairment FinancingReceivableCollectivelyEvaluatedForImpairment	8810441000	USD
CY2019Q3	us-gaap	Certain Loans Acquired In Transfer Not Accounted For As Debt Securities Carrying Amount Net CertainLoansAcquiredInTransferNotAccountedForAsDebtSecuritiesCarryingAmountNet	12575000	USD
CY2019Q3	us-gaap	Loans And Leases Receivable Gross Carrying Amount LoansAndLeasesReceivableGrossCarryingAmount	8835368000	USD
CY2018Q2	us-gaap	Loans And Leases Receivable Allowance LoansAndLeasesReceivableAllowance	93875000	USD
CY2018Q3	us-gaap	Provision For Loan And Lease Losses ProvisionForLoanAndLeaseLosses	2000000	USD
CY2018Q3	us-gaap	Financing Receivable Allowance For Credit Losses Recovery FinancingReceivableAllowanceForCreditLossesRecovery	735000	USD
CY2018Q3	us-gaap	Financing Receivable Allowance For Credit Losses Write Offs FinancingReceivableAllowanceForCreditLossesWriteOffs	1347000	USD
CY2018Q3	us-gaap	Loans And Leases Receivable Allowance LoansAndLeasesReceivableAllowance	95263000	USD
CY2017Q4	us-gaap	Loans And Leases Receivable Allowance LoansAndLeasesReceivableAllowance	89028000	USD
	us-gaap	Provision For Loan And Lease Losses ProvisionForLoanAndLeaseLosses	6000000	USD
	us-gaap	Financing Receivable Allowance For Credit Losses Recovery FinancingReceivableAllowanceForCreditLossesRecovery	3663000	USD
	us-gaap	Financing Receivable Allowance For Credit Losses Write Offs FinancingReceivableAllowanceForCreditLossesWriteOffs	3428000	USD
CY2018Q3	us-gaap	Loans And Leases Receivable Allowance LoansAndLeasesReceivableAllowance	95263000	USD
CY2018Q3	us-gaap	Financing Receivable Allowance For Credit Losses Individually Evaluated For Impairment1 FinancingReceivableAllowanceForCreditLossesIndividuallyEvaluatedForImpairment1	457000	USD
CY2018Q3	us-gaap	Financing Receivable Allowance For Credit Losses Collectively Evaluated For Impairment FinancingReceivableAllowanceForCreditLossesCollectivelyEvaluatedForImpairment	94721000	USD
CY2018Q3	us-gaap	Certain Loans Acquired In Transfer Not Accounted For As Debt Securities Allowance For Loan Losses CertainLoansAcquiredInTransferNotAccountedForAsDebtSecuritiesAllowanceForLoanLosses	85000	USD
CY2018Q3	us-gaap	Loans And Leases Receivable Allowance LoansAndLeasesReceivableAllowance	95263000	USD
CY2018Q3	us-gaap	Financing Receivable Individually Evaluated For Impairment FinancingReceivableIndividuallyEvaluatedForImpairment	18818000	USD
CY2018Q3	us-gaap	Financing Receivable Collectively Evaluated For Impairment FinancingReceivableCollectivelyEvaluatedForImpairment	7790757000	USD
CY2018Q3	us-gaap	Certain Loans Acquired In Transfer Not Accounted For As Debt Securities Carrying Amount Net CertainLoansAcquiredInTransferNotAccountedForAsDebtSecuritiesCarryingAmountNet	12944000	USD
CY2018Q3	us-gaap	Loans And Leases Receivable Gross Carrying Amount LoansAndLeasesReceivableGrossCarryingAmount	7822519000	USD
CY2019Q2	us-gaap	Real Estate Acquired Through Foreclosure RealEstateAcquiredThroughForeclosure	2513000	USD
CY2018Q2	us-gaap	Real Estate Acquired Through Foreclosure RealEstateAcquiredThroughForeclosure	473000	USD
CY2018Q4	us-gaap	Real Estate Acquired Through Foreclosure RealEstateAcquiredThroughForeclosure	2611000	USD
CY2017Q4	us-gaap	Real Estate Acquired Through Foreclosure RealEstateAcquiredThroughForeclosure	360000	USD
CY2019Q3	us-gaap	Real Estate Acquisitions Through Foreclosures RealEstateAcquisitionsThroughForeclosures	48000	USD
CY2018Q3	us-gaap	Real Estate Acquisitions Through Foreclosures RealEstateAcquisitionsThroughForeclosures	0	USD
	us-gaap	Real Estate Acquisitions Through Foreclosures RealEstateAcquisitionsThroughForeclosures	109000	USD
	us-gaap	Real Estate Acquisitions Through Foreclosures RealEstateAcquisitionsThroughForeclosures	502000	USD
CY2019Q3	us-gaap	Proceeds From Sale Of Other Real Estate ProceedsFromSaleOfOtherRealEstate	2333000	USD
CY2018Q3	us-gaap	Proceeds From Sale Of Other Real Estate ProceedsFromSaleOfOtherRealEstate	90000	USD
	us-gaap	Proceeds From Sale Of Other Real Estate ProceedsFromSaleOfOtherRealEstate	2483000	USD
	us-gaap	Proceeds From Sale Of Other Real Estate ProceedsFromSaleOfOtherRealEstate	385000	USD
CY2019Q3	us-gaap	Gains Losses On Sales Of Other Real Estate GainsLossesOnSalesOfOtherRealEstate	0	USD
CY2018Q3	us-gaap	Gains Losses On Sales Of Other Real Estate GainsLossesOnSalesOfOtherRealEstate	-8000	USD
	us-gaap	Gains Losses On Sales Of Other Real Estate GainsLossesOnSalesOfOtherRealEstate	9000	USD
	us-gaap	Gains Losses On Sales Of Other Real Estate GainsLossesOnSalesOfOtherRealEstate	-74000	USD
CY2019Q3	us-gaap	Real Estate Owned Valuation Allowance Period Increase Decrease RealEstateOwnedValuationAllowancePeriodIncreaseDecrease	0	USD
CY2018Q3	us-gaap	Real Estate Owned Valuation Allowance Period Increase Decrease RealEstateOwnedValuationAllowancePeriodIncreaseDecrease	-27000	USD
	us-gaap	Real Estate Owned Valuation Allowance Period Increase Decrease RealEstateOwnedValuationAllowancePeriodIncreaseDecrease	0	USD
	us-gaap	Real Estate Owned Valuation Allowance Period Increase Decrease RealEstateOwnedValuationAllowancePeriodIncreaseDecrease	-187000	USD
CY2019Q3	us-gaap	Real Estate Acquired Through Foreclosure RealEstateAcquiredThroughForeclosure	228000	USD
CY2018Q3	us-gaap	Real Estate Acquired Through Foreclosure RealEstateAcquiredThroughForeclosure	364000	USD
CY2019Q3	us-gaap	Real Estate Acquired Through Foreclosure RealEstateAcquiredThroughForeclosure	228000	USD
CY2018Q3	us-gaap	Real Estate Acquired Through Foreclosure RealEstateAcquiredThroughForeclosure	364000	USD
CY2019Q3	us-gaap	Mortgage Loans In Process Of Foreclosure Amount MortgageLoansInProcessOfForeclosureAmount	2300000	USD
CY2018Q4	us-gaap	Mortgage Loans In Process Of Foreclosure Amount MortgageLoansInProcessOfForeclosureAmount	1200000	USD
CY2017Q4	us-gaap	Goodwill Goodwill	242659000	USD
CY2017Q4	us-gaap	Intangible Assets Net Including Goodwill IntangibleAssetsNetIncludingGoodwill	265314000	USD
CY2018	us-gaap	Goodwill Acquired During Period GoodwillAcquiredDuringPeriod	96495000	USD
CY2018	banr	Acquired Intangible Assets Including Goodwill AcquiredIntangibleAssetsIncludingGoodwill	112863000	USD
CY2018	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	6099000	USD
CY2018Q4	us-gaap	Goodwill Goodwill	339154000	USD
CY2018Q4	us-gaap	Intangible Assets Net Including Goodwill IntangibleAssetsNetIncludingGoodwill	372078000	USD
	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	6097000	USD
	us-gaap	Goodwill Purchase Accounting Adjustments GoodwillPurchaseAccountingAdjustments	217000	USD
CY2019Q3	us-gaap	Goodwill Goodwill	339154000	USD
CY2019Q3	us-gaap	Intangible Assets Net Including Goodwill IntangibleAssetsNetIncludingGoodwill	365764000	USD
CY2019Q3	banr	Servicing Assetat Amortized Cost Additions Acquisitions ServicingAssetatAmortizedCostAdditionsAcquisitions	36000	USD
CY2018Q3	banr	Servicing Assetat Amortized Cost Additions Acquisitions ServicingAssetatAmortizedCostAdditionsAcquisitions	47000	USD
	us-gaap	Servicing Asset At Amortized Value Additions ServicingAssetAtAmortizedValueAdditions	105000	USD
	us-gaap	Servicing Asset At Amortized Value Additions ServicingAssetAtAmortizedValueAdditions	92000	USD
CY2019Q3	us-gaap	Noninterest Bearing Deposit Liabilities Domestic NoninterestBearingDepositLiabilitiesDomestic	3885210000	USD
CY2018Q4	us-gaap	Noninterest Bearing Deposit Liabilities Domestic NoninterestBearingDepositLiabilitiesDomestic	3657817000	USD
CY2019Q3	us-gaap	Interest Bearing Domestic Deposit Checking InterestBearingDomesticDepositChecking	1209826000	USD
CY2018Q4	us-gaap	Interest Bearing Domestic Deposit Checking InterestBearingDomesticDepositChecking	1191016000	USD
CY2019Q3	us-gaap	Interest Bearing Domestic Deposit Savings InterestBearingDomesticDepositSavings	1863839000	USD
CY2018Q4	us-gaap	Interest Bearing Domestic Deposit Savings InterestBearingDomesticDepositSavings	1842581000	USD
CY2019Q3	us-gaap	Interest Bearing Domestic Deposit Money Market InterestBearingDomesticDepositMoneyMarket	1551305000	USD
CY2018Q4	us-gaap	Interest Bearing Domestic Deposit Money Market InterestBearingDomesticDepositMoneyMarket	1465369000	USD
CY2019Q3	banr	Deposits Domestic Transaction And Saving Accounts DepositsDomesticTransactionAndSavingAccounts	4624970000	USD
CY2018Q4	banr	Deposits Domestic Transaction And Saving Accounts DepositsDomesticTransactionAndSavingAccounts	4498966000	USD
CY2019Q3	banr	Time Deposits250000orless TimeDeposits250000orless	1039372000	USD
CY2018Q4	banr	Time Deposits250000orless TimeDeposits250000orless	1143303000	USD
CY2019Q3	banr	Time Deposits Morethan250000 TimeDepositsMorethan250000	179219000	USD
CY2018Q4	banr	Time Deposits Morethan250000 TimeDepositsMorethan250000	176962000	USD
CY2019Q3	us-gaap	Interest Bearing Domestic Deposit Certificates Of Deposits InterestBearingDomesticDepositCertificatesOfDeposits	1218591000	USD
CY2018Q4	us-gaap	Interest Bearing Domestic Deposit Certificates Of Deposits InterestBearingDomesticDepositCertificatesOfDeposits	1320265000	USD
CY2019Q3	us-gaap	Deposits Domestic DepositsDomestic	9728771000	USD
CY2018Q4	us-gaap	Deposits Domestic DepositsDomestic	9477048000	USD
CY2019Q3	banr	Deposits Domestic Public Fund Transaction DepositsDomesticPublicFundTransaction	234608000	USD
CY2018Q4	banr	Deposits Domestic Public Fund Transaction DepositsDomesticPublicFundTransaction	217401000	USD
CY2019Q3	banr	Interest Bearing Domestic Deposit Public Fund Certificates InterestBearingDomesticDepositPublicFundCertificates	26609000	USD
CY2018Q4	banr	Interest Bearing Domestic Deposit Public Fund Certificates InterestBearingDomesticDepositPublicFundCertificates	30089000	USD
CY2019Q3	banr	Deposits Domestic Public Deposits DepositsDomesticPublicDeposits	261217000	USD
CY2018Q4	banr	Deposits Domestic Public Deposits DepositsDomesticPublicDeposits	247490000	USD
CY2019Q3	us-gaap	Interest Bearing Domestic Deposit Brokered InterestBearingDomesticDepositBrokered	299496000	USD
CY2018Q4	us-gaap	Interest Bearing Domestic Deposit Brokered InterestBearingDomesticDepositBrokered	377347000	USD
CY2019Q3	banr	Business Combination Acquired Deposits Time Deposit Premium BusinessCombinationAcquiredDepositsTimeDepositPremium	312000	USD
CY2018Q4	banr	Business Combination Acquired Deposits Time Deposit Premium BusinessCombinationAcquiredDepositsTimeDepositPremium	563000	USD
CY2019Q3	us-gaap	Time Deposits At Or Above Fdic Insurance Limit TimeDepositsAtOrAboveFDICInsuranceLimit	184700000	USD
CY2018Q4	us-gaap	Time Deposits At Or Above Fdic Insurance Limit TimeDepositsAtOrAboveFDICInsuranceLimit	180500000	USD
CY2019Q3	us-gaap	Time Deposit Maturities Year One TimeDepositMaturitiesYearOne	934503000	USD
CY2019Q3	us-gaap	Time Deposits Weighted Average Interest Rate Maturities Year One TimeDepositsWeightedAverageInterestRateMaturitiesYearOne	0.0132
CY2019Q3	us-gaap	Time Deposit Maturities Year Two TimeDepositMaturitiesYearTwo	183851000	USD
CY2019Q3	us-gaap	Time Deposits Weighted Average Interest Rate Maturities Year Two TimeDepositsWeightedAverageInterestRateMaturitiesYearTwo	0.0176
CY2019Q3	us-gaap	Time Deposit Maturities Year Three TimeDepositMaturitiesYearThree	74500000	USD
CY2019Q3	us-gaap	Time Deposits Weighted Average Interest Rate Maturities Year Three TimeDepositsWeightedAverageInterestRateMaturitiesYearThree	0.0199
CY2019Q3	us-gaap	Time Deposit Maturities Year Four TimeDepositMaturitiesYearFour	11404000	USD
CY2019Q3	us-gaap	Time Deposits Weighted Average Interest Rate Maturities Year Four TimeDepositsWeightedAverageInterestRateMaturitiesYearFour	0.0160
CY2019Q3	us-gaap	Time Deposit Maturities Year Five TimeDepositMaturitiesYearFive	12015000	USD
CY2019Q3	us-gaap	Time Deposits Weighted Average Interest Rate Maturities Year Five TimeDepositsWeightedAverageInterestRateMaturitiesYearFive	0.0229
CY2019Q3	us-gaap	Time Deposit Maturities After Year Five TimeDepositMaturitiesAfterYearFive	2318000	USD
CY2019Q3	us-gaap	Time Deposits Weighted Average Interest Rate Maturities Greater Than Five Years TimeDepositsWeightedAverageInterestRateMaturitiesGreaterThanFiveYears	0.0115
CY2019Q3	us-gaap	Interest Bearing Domestic Deposit Certificates Of Deposits InterestBearingDomesticDepositCertificatesOfDeposits	1218591000	USD
CY2019Q3	us-gaap	Weighted Average Rate Domestic Deposit Time Deposits WeightedAverageRateDomesticDepositTimeDeposits	0.0144
CY2019Q3	us-gaap	Amortization Method Qualified Affordable Housing Project Investments AmortizationMethodQualifiedAffordableHousingProjectInvestments	20954000	USD
CY2018Q4	us-gaap	Amortization Method Qualified Affordable Housing Project Investments AmortizationMethodQualifiedAffordableHousingProjectInvestments	17360000	USD
CY2019Q3	us-gaap	Qualified Affordable Housing Project Investments Commitment QualifiedAffordableHousingProjectInvestmentsCommitment	14911000	USD
CY2018Q4	us-gaap	Qualified Affordable Housing Project Investments Commitment QualifiedAffordableHousingProjectInvestmentsCommitment	12726000	USD
CY2019Q3	us-gaap	Affordable Housing Tax Credits And Other Tax Benefits Amount AffordableHousingTaxCreditsAndOtherTaxBenefitsAmount	494000	USD
CY2018Q3	us-gaap	Affordable Housing Tax Credits And Other Tax Benefits Amount AffordableHousingTaxCreditsAndOtherTaxBenefitsAmount	364000	USD
	us-gaap	Affordable Housing Tax Credits And Other Tax Benefits Amount AffordableHousingTaxCreditsAndOtherTaxBenefitsAmount	1482000	USD
	us-gaap	Affordable Housing Tax Credits And Other Tax Benefits Amount AffordableHousingTaxCreditsAndOtherTaxBenefitsAmount	1092000	USD
CY2019Q3	us-gaap	Amortization Method Qualified Affordable Housing Project Investments Amortization AmortizationMethodQualifiedAffordableHousingProjectInvestmentsAmortization	405000	USD
CY2018Q3	us-gaap	Amortization Method Qualified Affordable Housing Project Investments Amortization AmortizationMethodQualifiedAffordableHousingProjectInvestmentsAmortization	288000	USD
	us-gaap	Amortization Method Qualified Affordable Housing Project Investments Amortization AmortizationMethodQualifiedAffordableHousingProjectInvestmentsAmortization	1215000	USD
	us-gaap	Amortization Method Qualified Affordable Housing Project Investments Amortization AmortizationMethodQualifiedAffordableHousingProjectInvestmentsAmortization	863000	USD
CY2019Q3	us-gaap	Net Income Loss NetIncomeLoss	39577000	USD
CY2018Q3	us-gaap	Net Income Loss NetIncomeLoss	37773000	USD
	us-gaap	Net Income Loss NetIncomeLoss	112623000	USD
	us-gaap	Net Income Loss NetIncomeLoss	98987000	USD
CY2019Q3	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	34407462	shares
CY2018Q3	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	32256789	shares
	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	34760607	shares
	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	32300688	shares
CY2019Q3	us-gaap	Incremental Common Shares Attributable To Nonvested Shares With Forfeitable Dividends IncrementalCommonSharesAttributableToNonvestedSharesWithForfeitableDividends	90532	shares
CY2018Q3	us-gaap	Incremental Common Shares Attributable To Nonvested Shares With Forfeitable Dividends IncrementalCommonSharesAttributableToNonvestedSharesWithForfeitableDividends	119834	shares
	us-gaap	Incremental Common Shares Attributable To Nonvested Shares With Forfeitable Dividends IncrementalCommonSharesAttributableToNonvestedSharesWithForfeitableDividends	89399	shares
	us-gaap	Incremental Common Shares Attributable To Nonvested Shares With Forfeitable Dividends IncrementalCommonSharesAttributableToNonvestedSharesWithForfeitableDividends	105726	shares
CY2019Q3	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	34497994	shares
CY2018Q3	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	32376623	shares
	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	34850006	shares
	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	32406414	shares
CY2019Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.15
CY2018Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.17
	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	3.24
	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	3.06
CY2019Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.15
CY2018Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.17
	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	3.23
	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	3.05
CY2019Q3	banr	Reservefor Unfunded Loan Commitments ReserveforUnfundedLoanCommitments	2600000	USD
	banr	Mortgage Loan Applications Day Interest Rate Is Locked MortgageLoanApplicationsDayInterestRateIsLocked	P45D
CY2019Q3	us-gaap	Derivative Net Liability Position Aggregate Fair Value DerivativeNetLiabilityPositionAggregateFairValue	19300000	USD
CY2018Q4	us-gaap	Derivative Net Liability Position Aggregate Fair Value DerivativeNetLiabilityPositionAggregateFairValue	1300000	USD
CY2019Q3	us-gaap	Collateral Already Posted Aggregate Fair Value CollateralAlreadyPostedAggregateFairValue	30400000	USD
CY2018Q4	us-gaap	Collateral Already Posted Aggregate Fair Value CollateralAlreadyPostedAggregateFairValue	13600000	USD
CY2019Q3	us-gaap	Derivative Fair Value Of Derivative Asset DerivativeFairValueOfDerivativeAsset	19289000	USD
CY2019Q3	us-gaap	Derivative Asset Fair Value Gross Liability DerivativeAssetFairValueGrossLiability	0	USD
CY2019Q3	us-gaap	Derivative Fair Value Of Derivative Asset Amount Not Offset Against Collateral DerivativeFairValueOfDerivativeAssetAmountNotOffsetAgainstCollateral	19289000	USD
CY2019Q3	us-gaap	Derivative Collateral Obligation To Return Securities DerivativeCollateralObligationToReturnSecurities	0	USD
CY2019Q3	us-gaap	Derivative Collateral Obligation To Return Cash DerivativeCollateralObligationToReturnCash	0	USD
CY2019Q3	us-gaap	Derivative Fair Value Of Derivative Asset Amount Offset Against Collateral DerivativeFairValueOfDerivativeAssetAmountOffsetAgainstCollateral	19289000	USD
CY2019Q3	us-gaap	Derivative Fair Value Of Derivative Liability DerivativeFairValueOfDerivativeLiability	19289000	USD
CY2019Q3	us-gaap	Derivative Liability Fair Value Gross Asset DerivativeLiabilityFairValueGrossAsset	4890000	USD
CY2019Q3	us-gaap	Derivative Fair Value Of Derivative Liability Amount Not Offset Against Collateral DerivativeFairValueOfDerivativeLiabilityAmountNotOffsetAgainstCollateral	14399000	USD
CY2019Q3	us-gaap	Derivative Collateral Right To Reclaim Securities DerivativeCollateralRightToReclaimSecurities	0	USD
CY2019Q3	us-gaap	Derivative Collateral Right To Reclaim Cash DerivativeCollateralRightToReclaimCash	14383000	USD
CY2019Q3	us-gaap	Derivative Fair Value Of Derivative Liability Amount Offset Against Collateral DerivativeFairValueOfDerivativeLiabilityAmountOffsetAgainstCollateral	16000	USD
CY2018Q4	us-gaap	Derivative Fair Value Of Derivative Asset DerivativeFairValueOfDerivativeAsset	5038000	USD
CY2018Q4	us-gaap	Derivative Asset Fair Value Gross Liability DerivativeAssetFairValueGrossLiability	1900000	USD
CY2018Q4	us-gaap	Derivative Fair Value Of Derivative Asset Amount Not Offset Against Collateral DerivativeFairValueOfDerivativeAssetAmountNotOffsetAgainstCollateral	3138000	USD
CY2018Q4	us-gaap	Derivative Collateral Obligation To Return Securities DerivativeCollateralObligationToReturnSecurities	0	USD
CY2018Q4	us-gaap	Derivative Collateral Obligation To Return Cash DerivativeCollateralObligationToReturnCash	0	USD
CY2018Q4	us-gaap	Derivative Fair Value Of Derivative Asset Amount Offset Against Collateral DerivativeFairValueOfDerivativeAssetAmountOffsetAgainstCollateral	3138000	USD
CY2018Q4	us-gaap	Derivative Fair Value Of Derivative Liability DerivativeFairValueOfDerivativeLiability	5038000	USD
CY2018Q4	us-gaap	Derivative Liability Fair Value Gross Asset DerivativeLiabilityFairValueGrossAsset	1900000	USD
CY2018Q4	us-gaap	Derivative Fair Value Of Derivative Liability Amount Not Offset Against Collateral DerivativeFairValueOfDerivativeLiabilityAmountNotOffsetAgainstCollateral	3138000	USD
CY2018Q4	us-gaap	Derivative Collateral Right To Reclaim Securities DerivativeCollateralRightToReclaimSecurities	0	USD
CY2018Q4	us-gaap	Derivative Collateral Right To Reclaim Cash DerivativeCollateralRightToReclaimCash	1320000	USD
CY2018Q4	us-gaap	Derivative Fair Value Of Derivative Liability Amount Offset Against Collateral DerivativeFairValueOfDerivativeLiabilityAmountOffsetAgainstCollateral	1818000	USD
CY2019Q3	banr	Debit And Credit Card Interchange Fees DebitAndCreditCardInterchangeFees	5480000	USD
CY2018Q3	banr	Debit And Credit Card Interchange Fees DebitAndCreditCardInterchangeFees	8146000	USD
	banr	Debit And Credit Card Interchange Fees DebitAndCreditCardInterchangeFees	22682000	USD
	banr	Debit And Credit Card Interchange Fees DebitAndCreditCardInterchangeFees	23337000	USD
CY2019Q3	banr	Debitand Credit Card Expense DebitandCreditCardExpense	-1991000	USD
CY2018Q3	banr	Debitand Credit Card Expense DebitandCreditCardExpense	-2166000	USD
	banr	Debitand Credit Card Expense DebitandCreditCardExpense	-6389000	USD
	banr	Debitand Credit Card Expense DebitandCreditCardExpense	-6069000	USD
CY2019Q3	banr	Merchant Services Expenses MerchantServicesExpenses	-2960000	USD
CY2018Q3	banr	Merchant Services Expenses MerchantServicesExpenses	-4544000	USD
	banr	Merchant Services Expenses MerchantServicesExpenses	-7941000	USD
	banr	Merchant Services Expenses MerchantServicesExpenses	-5899000	USD
CY2019Q3	banr	Other Service Charges OtherServiceCharges	1212000	USD
CY2018Q3	banr	Other Service Charges OtherServiceCharges	971000	USD
	banr	Other Service Charges OtherServiceCharges	4436000	USD
	banr	Other Service Charges OtherServiceCharges	3071000	USD
CY2019Q3	banr	Total Deposit Feesand Other Service Charges TotalDepositFeesandOtherServiceCharges	10331000	USD
CY2018Q3	banr	Total Deposit Feesand Other Service Charges TotalDepositFeesandOtherServiceCharges	12255000	USD
	banr	Total Deposit Feesand Other Service Charges TotalDepositFeesandOtherServiceCharges	36995000	USD
	banr	Total Deposit Feesand Other Service Charges TotalDepositFeesandOtherServiceCharges	35535000	USD
	banr	Operating Lease Number Of Buildings And Offices Under Lease OperatingLeaseNumberOfBuildingsAndOfficesUnderLease	106	office
CY2019Q3	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	58985000	USD
CY2019Q3	us-gaap	Operating Lease Liability OperatingLeaseLiability	62808000	USD
CY2019Q3	us-gaap	Operating Lease Weighted Average Remaining Lease Term1 OperatingLeaseWeightedAverageRemainingLeaseTerm1	P6Y4M24D
CY2019Q3	us-gaap	Operating Lease Weighted Average Discount Rate Percent OperatingLeaseWeightedAverageDiscountRatePercent	0.0383
CY2019Q3	us-gaap	Operating Lease Cost OperatingLeaseCost	3818000	USD
	us-gaap	Operating Lease Cost OperatingLeaseCost	11650000	USD
CY2019Q3	us-gaap	Short Term Lease Cost ShortTermLeaseCost	62000	USD
	us-gaap	Short Term Lease Cost ShortTermLeaseCost	284000	USD
CY2019Q3	us-gaap	Variable Lease Cost VariableLeaseCost	623000	USD
	us-gaap	Variable Lease Cost VariableLeaseCost	1751000	USD
CY2019Q3	us-gaap	Sublease Income SubleaseIncome	228000	USD
	us-gaap	Sublease Income SubleaseIncome	696000	USD
CY2019Q3	us-gaap	Lease Cost LeaseCost	4275000	USD
	us-gaap	Lease Cost LeaseCost	12989000	USD
CY2019Q3	us-gaap	Operating Lease Payments OperatingLeasePayments	3800000	USD
	us-gaap	Operating Lease Payments OperatingLeasePayments	11500000	USD
CY2019Q3	us-gaap	Right Of Use Asset Obtained In Exchange For Operating Lease Liability RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability	8800000	USD
	us-gaap	Right Of Use Asset Obtained In Exchange For Operating Lease Liability RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability	72500000	USD
CY2019Q3	us-gaap	Lessee Operating Lease Liability Payments Remainder Of Fiscal Year LesseeOperatingLeaseLiabilityPaymentsRemainderOfFiscalYear	3778000	USD
CY2019Q3	us-gaap	Lessee Operating Lease Liability Payments Due Year Two LesseeOperatingLeaseLiabilityPaymentsDueYearTwo	14936000	USD
CY2019Q3	us-gaap	Lessee Operating Lease Liability Payments Due Year Three LesseeOperatingLeaseLiabilityPaymentsDueYearThree	13596000	USD
CY2019Q3	us-gaap	Lessee Operating Lease Liability Payments Due Year Four LesseeOperatingLeaseLiabilityPaymentsDueYearFour	10086000	USD
CY2019Q3	us-gaap	Lessee Operating Lease Liability Payments Due Year Five LesseeOperatingLeaseLiabilityPaymentsDueYearFive	7193000	USD
CY2019Q3	us-gaap	Lessee Operating Lease Liability Payments Due After Year Five LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive	21498000	USD
CY2019Q3	us-gaap	Lessee Operating Lease Liability Payments Due LesseeOperatingLeaseLiabilityPaymentsDue	71087000	USD
CY2019Q3	us-gaap	Lessee Operating Lease Liability Undiscounted Excess Amount LesseeOperatingLeaseLiabilityUndiscountedExcessAmount	8279000	USD
CY2019Q3	us-gaap	Operating Lease Liability OperatingLeaseLiability	62808000	USD
	banr	Lessee Operating Lease Not Yet Commenced LesseeOperatingLeaseNotYetCommenced	0	USD

Files In Submission

Name	View Source	Status
0000946673-19-000021-index-headers.html	Edgar Link	pending
0000946673-19-000021-index.html	Edgar Link	pending
0000946673-19-000021.txt	Edgar Link	pending
0000946673-19-000021-xbrl.zip	Edgar Link	pending
banr-20190930.xsd	Edgar Link	pending
banr-20190930_cal.xml	Edgar Link	unprocessable
banr-20190930_def.xml	Edgar Link	unprocessable
banr-20190930_lab.xml	Edgar Link	unprocessable
banr-20190930_pre.xml	Edgar Link	unprocessable
banr-9302019x10q.htm	Edgar Link	pending
banr-9302019x10q_htm.xml	Edgar Link	completed
banr-9302019xex311.htm	Edgar Link	pending
banr-9302019xex312.htm	Edgar Link	pending
banr-9302019xex32.htm	Edgar Link	pending
FilingSummary.xml	Edgar Link	unprocessable
Financial_Report.xlsx	Edgar Link	pending
MetaLinks.json	Edgar Link	pending
R1.htm	Edgar Link	pending
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$BANR
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2019 Q3 Form 10-Q Financial Statement

#000094667319000021 Filed on November 01, 2019

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$BANR BANNER CORP Stock $banr

2019 Q3 Form 10-Q Financial Statement

#000094667319000021 Filed on November 01, 2019

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$BANR
BANNER CORP Stock $banr