$BANR
BANNER CORP Stock $banr

$banr Overview Financials Valuation SEC Filings Company Website

2019 Q2 Form 10-Q Financial Statement

#000094667319000018 Filed on August 02, 2019

Income Statement

Concept	2019 Q2	2018 Q2
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	$5.100M
YoY Change	21.57%	-1.92%
% of Gross Profit
Operating Expenses
YoY Change
Operating Profit	$22.67M	$21.22M
YoY Change	6.87%	4.03%
Interest Expense	$14.14M	$7.360M
YoY Change	92.16%	55.6%
% of Operating Profit	62.38%	34.69%
Other Income/Expense, Net	$7.051M	$7.128M
YoY Change	-1.08%	-4.49%
Pretax Income	$50.66M	$41.64M
YoY Change	21.64%	8.88%
Income Tax	$10.96M	$9.219M
% Of Pretax Income	21.63%	22.14%
Net Earnings	$39.70M	$32.42M
YoY Change	22.44%	27.38%
Net Earnings / Revenue
Basic Earnings Per Share	$1.14	$1.01
Diluted Earnings Per Share	$1.14	$1.00
COMMON SHARES
Basic Shares Outstanding	34.83M shares	32.25M shares
Diluted Shares Outstanding	34.88M shares	32.33M shares

Balance Sheet

Concept	2019 Q2	2018 Q2
SHORT-TERM ASSETS
Cash & Short-Term Investments
YoY Change
Cash & Equivalents	$246.8M	$249.4M
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	$171.2M	$153.2M
YoY Change	11.75%	-4.89%
Goodwill	$339.2M	$242.7M
YoY Change	39.77%	-0.79%
Intangibles
YoY Change
Long-Term Investments
YoY Change
Other Assets	$61.00M	$78.00M
YoY Change	-21.79%	-35.54%
Total Long-Term Assets
YoY Change
TOTAL ASSETS
Total Short-Term Assets
Total Long-Term Assets
Total Assets	$11.85B	$10.38B
YoY Change	14.15%	1.76%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable
YoY Change
Accrued Expenses	$159.0M	$93.00M
YoY Change	70.97%	-8.82%
Deferred Revenue
YoY Change
Short-Term Debt	$118.0M	$112.0M
YoY Change	5.36%	-3.45%
Long-Term Debt Due
YoY Change
Total Short-Term Liabilities	$159.0M	$93.00M
YoY Change	70.97%	-8.82%
LONG-TERM LIABILITIES
Long-Term Debt	$114.0M	$113.0M
YoY Change	0.88%	16.49%
Other Long-Term Liabilities	$41.00M	$41.00M
YoY Change	0.0%	0.0%
Total Long-Term Liabilities	$155.0M	$154.0M
YoY Change	0.65%	11.59%
TOTAL LIABILITIES
Total Short-Term Liabilities	$159.0M	$93.00M
Total Long-Term Liabilities	$155.0M	$154.0M
Total Liabilities	$10.33B	$9.126B
YoY Change	13.15%	2.66%
SHAREHOLDERS EQUITY
Retained Earnings	$178.3M	$84.49M
YoY Change	110.99%	-10.64%
Common Stock
YoY Change
Preferred Stock
YoY Change
Treasury Stock (at cost)
YoY Change
Treasury Stock Shares
Shareholders Equity	$1.521B	$1.253B
YoY Change
Total Liabilities & Shareholders Equity	$11.85B	$10.38B
YoY Change	14.15%	1.76%

Cashflow Statement

Concept	2019 Q2	2018 Q2
OPERATING ACTIVITIES
Net Income	$39.70M	$32.42M
YoY Change	22.44%	27.38%
Depreciation, Depletion And Amortization	$6.200M	$5.100M
YoY Change	21.57%	-1.92%
Cash From Operating Activities	-$76.80M	$109.0M
YoY Change	-170.46%	91.9%
INVESTING ACTIVITIES
Capital Expenditures	-$7.900M	-$4.900M
YoY Change	61.22%	172.22%
Acquisitions
YoY Change
Other Investing Activities	$20.60M	-$147.0M
YoY Change	-114.01%	-19.19%
Cash From Investing Activities	$12.80M	-$151.9M
YoY Change	-108.43%	-17.27%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net
YoY Change
Debt Paid & Issued, Net
YoY Change
Cash From Financing Activities	49.30M	50.30M
YoY Change	-1.99%	-49.55%
NET CHANGE
Cash From Operating Activities	-76.80M	109.0M
Cash From Investing Activities	12.80M	-151.9M
Cash From Financing Activities	49.30M	50.30M
Net Change In Cash	-14.70M	7.400M
YoY Change	-298.65%	-127.31%
FREE CASH FLOW
Cash From Operating Activities	-$76.80M	$109.0M
Capital Expenditures	-$7.900M	-$4.900M
Free Cash Flow	-$68.90M	$113.9M
YoY Change	-160.49%	94.37%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value	Unit
	us-gaap	Other Than Temporary Impairment Losses Investments Portion Recognized In Earnings Net Heldtomaturity Securities OtherThanTemporaryImpairmentLossesInvestmentsPortionRecognizedInEarningsNetHeldtomaturitySecurities	0	USD
CY2018Q4	us-gaap	Preferred Stock Shares Outstanding PreferredStockSharesOutstanding	0	shares
	us-gaap	Other Than Temporary Impairment Losses Investments Portion Recognized In Earnings Net Heldtomaturity Securities OtherThanTemporaryImpairmentLossesInvestmentsPortionRecognizedInEarningsNetHeldtomaturitySecurities	0	USD
CY2018Q4	us-gaap	Preferred Stock Par Or Stated Value Per Share PreferredStockParOrStatedValuePerShare	0.01
CY2019Q2	us-gaap	Preferred Stock Par Or Stated Value Per Share PreferredStockParOrStatedValuePerShare	0.01
CY2019Q2	us-gaap	Preferred Stock Shares Outstanding PreferredStockSharesOutstanding	0	shares
CY2018Q2	banr	Availableforsale Securities Numberof Securitiesin Nonaccrual Status AvailableforsaleSecuritiesNumberofSecuritiesinNonaccrualStatus	0	security
CY2018Q2	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	1	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
CY2018Q2	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	Q2
	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
CY2018Q3	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.38
CY2018Q4	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.38
CY2019Q2	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.41
	us-gaap	Financing Receivable Modifications Subsequent Default Recorded Investment1 FinancingReceivableModificationsSubsequentDefaultRecordedInvestment1	0	USD
	us-gaap	Financing Receivable Modifications Subsequent Default Recorded Investment1 FinancingReceivableModificationsSubsequentDefaultRecordedInvestment1	0	USD
	us-gaap	Other Than Temporary Impairment Losses Investments Portion Recognized In Earnings Net Availableforsale Securities OtherThanTemporaryImpairmentLossesInvestmentsPortionRecognizedInEarningsNetAvailableforsaleSecurities	0	USD
	us-gaap	Other Than Temporary Impairment Losses Investments Portion Recognized In Earnings Net Availableforsale Securities OtherThanTemporaryImpairmentLossesInvestmentsPortionRecognizedInEarningsNetAvailableforsaleSecurities	0	USD
CY2018Q4	us-gaap	Preferred Stock Shares Authorized PreferredStockSharesAuthorized	500000	shares
CY2019Q2	us-gaap	Preferred Stock Shares Authorized PreferredStockSharesAuthorized	500000	shares
	us-gaap	Proceeds From Payments For Trading Securities ProceedsFromPaymentsForTradingSecurities	1300000	USD
	us-gaap	Proceeds From Payments For Trading Securities ProceedsFromPaymentsForTradingSecurities	0	USD
CY2019Q2	us-gaap	Held To Maturity Securities Debt Maturities Within One Year Net Carrying Amount HeldToMaturitySecuritiesDebtMaturitiesWithinOneYearNetCarryingAmount	4602000	USD
	us-gaap	Proceeds From Sale Of Available For Sale Securities Debt ProceedsFromSaleOfAvailableForSaleSecuritiesDebt	0	USD
	us-gaap	Proceeds From Sale Of Available For Sale Securities Debt ProceedsFromSaleOfAvailableForSaleSecuritiesDebt	40800000	USD
	us-gaap	Trading Securities Realized Gain Loss TradingSecuritiesRealizedGainLoss	28000	USD
	us-gaap	Trading Securities Realized Gain Loss TradingSecuritiesRealizedGainLoss	0	USD
	dei	Document Type DocumentType	10-Q
	dei	Document Quarterly Report DocumentQuarterlyReport	true
	dei	Document Period End Date DocumentPeriodEndDate	2019-06-30
	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
CY2019Q2	us-gaap	Cash And Due From Banks CashAndDueFromBanks	187043000	USD
CY2018Q4	us-gaap	Cash And Due From Banks CashAndDueFromBanks	231029000	USD
CY2019Q2	us-gaap	Interest Bearing Deposits In Banks InterestBearingDepositsInBanks	59753000	USD
CY2018Q4	us-gaap	Interest Bearing Deposits In Banks InterestBearingDepositsInBanks	41167000	USD
CY2019Q2	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	246796000	USD
CY2018Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	272196000	USD
CY2019Q2	us-gaap	Trading Securities TradingSecurities	25741000	USD
CY2018Q4	us-gaap	Trading Securities TradingSecurities	25896000	USD
CY2019Q2	us-gaap	Available For Sale Securities AvailableForSaleSecurities	1561009000	USD
CY2018Q4	us-gaap	Available For Sale Securities AvailableForSaleSecurities	1636223000	USD
CY2019Q2	us-gaap	Held To Maturity Securities HeldToMaturitySecurities	203222000	USD
CY2018Q4	us-gaap	Held To Maturity Securities HeldToMaturitySecurities	234220000	USD
CY2019Q2	us-gaap	Debt Securities DebtSecurities	1789972000	USD
CY2018Q4	us-gaap	Debt Securities DebtSecurities	1896339000	USD
CY2019Q2	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	171233000	USD
CY2018Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	171809000	USD
CY2019Q2	us-gaap	Goodwill Goodwill	339154000	USD
CY2018Q4	us-gaap	Goodwill Goodwill	339154000	USD
CY2019Q2	us-gaap	Other Intangible Assets Net OtherIntangibleAssetsNet	28595000	USD
CY2019Q2	us-gaap	Interest Receivable InterestReceivable	40238000	USD
CY2018Q4	us-gaap	Interest Receivable InterestReceivable	38593000	USD
CY2019Q2	us-gaap	Real Estate Held For Development And Sale Net RealEstateHeldForDevelopmentAndSaleNet	2513000	USD
CY2018Q4	us-gaap	Real Estate Held For Development And Sale Net RealEstateHeldForDevelopmentAndSaleNet	2611000	USD
CY2019Q2	us-gaap	Federal Home Loan Bank Stock FederalHomeLoanBankStock	34583000	USD
CY2018Q4	us-gaap	Federal Home Loan Bank Stock FederalHomeLoanBankStock	31955000	USD
CY2019Q2	us-gaap	Loans Receivable Held For Sale Amount LoansReceivableHeldForSaleAmount	170744000	USD
CY2018Q4	us-gaap	Loans Receivable Held For Sale Amount LoansReceivableHeldForSaleAmount	171031000	USD
CY2019Q2	us-gaap	Loans And Leases Receivable Gross Carrying Amount LoansAndLeasesReceivableGrossCarryingAmount	8746550000	USD
CY2018Q4	us-gaap	Loans And Leases Receivable Gross Carrying Amount LoansAndLeasesReceivableGrossCarryingAmount	8684595000	USD
CY2019Q2	us-gaap	Loans And Leases Receivable Allowance LoansAndLeasesReceivableAllowance	98254000	USD
CY2018Q4	us-gaap	Loans And Leases Receivable Allowance LoansAndLeasesReceivableAllowance	96485000	USD
CY2019Q2	us-gaap	Loans And Leases Receivable Net Reported Amount LoansAndLeasesReceivableNetReportedAmount	8648296000	USD
CY2018Q4	us-gaap	Loans And Leases Receivable Net Reported Amount LoansAndLeasesReceivableNetReportedAmount	8588110000	USD
CY2018Q4	us-gaap	Other Intangible Assets Net OtherIntangibleAssetsNet	32924000	USD
CY2019Q2	us-gaap	Bank Owned Life Insurance BankOwnedLifeInsurance	178922000	USD
CY2018Q4	us-gaap	Bank Owned Life Insurance BankOwnedLifeInsurance	177467000	USD
CY2019Q2	us-gaap	Deferred Income Tax Assets Net DeferredIncomeTaxAssetsNet	61327000	USD
CY2018Q4	us-gaap	Deferred Income Tax Assets Net DeferredIncomeTaxAssetsNet	75020000	USD
CY2019Q2	us-gaap	Other Assets OtherAssets	135001000	USD
CY2018Q4	us-gaap	Other Assets OtherAssets	74108000	USD
CY2019Q2	us-gaap	Assets Assets	11847374000	USD
CY2018Q4	us-gaap	Assets Assets	11871317000	USD
CY2019Q2	us-gaap	Noninterest Bearing Deposit Liabilities NoninterestBearingDepositLiabilities	3671995000	USD
CY2018Q4	us-gaap	Noninterest Bearing Deposit Liabilities NoninterestBearingDepositLiabilities	3657817000	USD
CY2019Q2	banr	Interest Bearing Domestic Deposit Transaction And Savings InterestBearingDomesticDepositTransactionAndSavings	4546202000	USD
CY2018Q4	banr	Interest Bearing Domestic Deposit Transaction And Savings InterestBearingDomesticDepositTransactionAndSavings	4498966000	USD
CY2019Q2	us-gaap	Interest Bearing Domestic Deposit Certificates Of Deposits InterestBearingDomesticDepositCertificatesOfDeposits	1070770000	USD
CY2018Q4	us-gaap	Interest Bearing Domestic Deposit Certificates Of Deposits InterestBearingDomesticDepositCertificatesOfDeposits	1320265000	USD
CY2019Q2	us-gaap	Deposits Deposits	9288967000	USD
CY2018Q4	us-gaap	Deposits Deposits	9477048000	USD
CY2019Q2	us-gaap	Federal Home Loan Bank Borrowings Fair Value Disclosure FederalHomeLoanBankBorrowingsFairValueDisclosure	606000000	USD
CY2018Q4	us-gaap	Federal Home Loan Bank Borrowings Fair Value Disclosure FederalHomeLoanBankBorrowingsFairValueDisclosure	540189000	USD
CY2019Q2	us-gaap	Other Borrowings OtherBorrowings	118370000	USD
CY2018Q4	us-gaap	Other Borrowings OtherBorrowings	118995000	USD
CY2019Q2	us-gaap	Other Accounts Payable And Accrued Liabilities OtherAccountsPayableAndAccruedLiabilities	159131000	USD
CY2018Q4	us-gaap	Junior Subordinated Debenture Owed To Unconsolidated Subsidiary Trust JuniorSubordinatedDebentureOwedToUnconsolidatedSubsidiaryTrust	114091000	USD
CY2019Q2	us-gaap	Interest Expense Federal Home Loan Bank And Federal Reserve Bank Advances Short Term InterestExpenseFederalHomeLoanBankAndFederalReserveBankAdvancesShortTerm	3370000	USD
CY2019Q2	us-gaap	Junior Subordinated Debenture Owed To Unconsolidated Subsidiary Trust JuniorSubordinatedDebentureOwedToUnconsolidatedSubsidiaryTrust	113621000	USD
CY2018Q4	us-gaap	Other Accounts Payable And Accrued Liabilities OtherAccountsPayableAndAccruedLiabilities	102061000	USD
CY2019Q2	us-gaap	Deferred Compensation Liability Current And Noncurrent DeferredCompensationLiabilityCurrentAndNoncurrent	40230000	USD
CY2018Q4	us-gaap	Deferred Compensation Liability Current And Noncurrent DeferredCompensationLiabilityCurrentAndNoncurrent	40338000	USD
CY2019Q2	us-gaap	Liabilities Liabilities	10326319000	USD
CY2018Q4	us-gaap	Liabilities Liabilities	10392722000	USD
CY2019Q2	us-gaap	Commitments And Contingencies CommitmentsAndContingencies		USD
CY2018Q4	us-gaap	Commitments And Contingencies CommitmentsAndContingencies		USD
CY2019Q2	us-gaap	Preferred Stock Value PreferredStockValue	0	USD
CY2018Q4	us-gaap	Preferred Stock Value PreferredStockValue	0	USD
CY2019Q2	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	178257000	USD
CY2018Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	134055000	USD
CY2019Q2	us-gaap	Common Stock Shares Held In Employee Trust CommonStockSharesHeldInEmployeeTrust	7324000	USD
CY2018Q4	us-gaap	Common Stock Shares Held In Employee Trust CommonStockSharesHeldInEmployeeTrust	7289000	USD
CY2019Q2	us-gaap	Treasury Stock Deferred Employee Stock Ownership Plan TreasuryStockDeferredEmployeeStockOwnershipPlan	7324000	USD
CY2018Q4	us-gaap	Treasury Stock Deferred Employee Stock Ownership Plan TreasuryStockDeferredEmployeeStockOwnershipPlan	7289000	USD
CY2019Q2	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	35910000	USD
CY2018Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	7104000	USD
CY2019Q2	us-gaap	Stockholders Equity StockholdersEquity	1521055000	USD
CY2018Q4	us-gaap	Stockholders Equity StockholdersEquity	1478595000	USD
CY2019Q2	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	11847374000	USD
CY2018Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	11871317000	USD
CY2019Q2	us-gaap	Interest And Fee Income Loans And Leases InterestAndFeeIncomeLoansAndLeases	117007000	USD
CY2018Q2	us-gaap	Interest And Fee Income Loans And Leases InterestAndFeeIncomeLoansAndLeases	99853000	USD
	us-gaap	Interest And Fee Income Loans And Leases InterestAndFeeIncomeLoansAndLeases	232462000	USD
	us-gaap	Interest And Fee Income Loans And Leases InterestAndFeeIncomeLoansAndLeases	193875000	USD
CY2019Q2	us-gaap	Interest Income Securities Mortgage Backed InterestIncomeSecuritiesMortgageBacked	9794000	USD
CY2018Q2	us-gaap	Interest Income Securities Mortgage Backed InterestIncomeSecuritiesMortgageBacked	8899000	USD
	us-gaap	Interest Income Securities Mortgage Backed InterestIncomeSecuritiesMortgageBacked	20301000	USD
	us-gaap	Interest Income Securities Mortgage Backed InterestIncomeSecuritiesMortgageBacked	16230000	USD
CY2019Q2	us-gaap	Interest And Dividend Income Securities Other InterestAndDividendIncomeSecuritiesOther	4037000	USD
CY2018Q2	us-gaap	Interest And Dividend Income Securities Other InterestAndDividendIncomeSecuritiesOther	3671000	USD
	us-gaap	Interest And Dividend Income Securities Other InterestAndDividendIncomeSecuritiesOther	8071000	USD
	us-gaap	Interest And Dividend Income Securities Other InterestAndDividendIncomeSecuritiesOther	7138000	USD
CY2019Q2	us-gaap	Investment Income Interest InvestmentIncomeInterest	130838000	USD
CY2018Q2	us-gaap	Investment Income Interest InvestmentIncomeInterest	112423000	USD
	us-gaap	Investment Income Interest InvestmentIncomeInterest	260834000	USD
	us-gaap	Investment Income Interest InvestmentIncomeInterest	217243000	USD
CY2019Q2	us-gaap	Interest Expense Deposits InterestExpenseDeposits	9023000	USD
CY2018Q2	us-gaap	Interest Expense Deposits InterestExpenseDeposits	4264000	USD
	us-gaap	Interest Expense Deposits InterestExpenseDeposits	17666000	USD
	us-gaap	Interest Expense Deposits InterestExpenseDeposits	7622000	USD
CY2018Q2	us-gaap	Interest Expense Federal Home Loan Bank And Federal Reserve Bank Advances Short Term InterestExpenseFederalHomeLoanBankAndFederalReserveBankAdvancesShortTerm	1499000	USD
	us-gaap	Interest Expense Federal Home Loan Bank And Federal Reserve Bank Advances Short Term InterestExpenseFederalHomeLoanBankAndFederalReserveBankAdvancesShortTerm	6846000	USD
	us-gaap	Interest Expense Federal Home Loan Bank And Federal Reserve Bank Advances Short Term InterestExpenseFederalHomeLoanBankAndFederalReserveBankAdvancesShortTerm	2177000	USD
CY2019Q2	us-gaap	Interest Expense Borrowings InterestExpenseBorrowings	67000	USD
CY2018Q2	us-gaap	Interest Expense Borrowings InterestExpenseBorrowings	49000	USD
	us-gaap	Interest Expense Borrowings InterestExpenseBorrowings	127000	USD
	us-gaap	Interest Expense Borrowings InterestExpenseBorrowings	119000	USD
CY2019Q2	us-gaap	Interest Expense Junior Subordinated Debentures InterestExpenseJuniorSubordinatedDebentures	1683000	USD
CY2018Q2	us-gaap	Interest Expense Junior Subordinated Debentures InterestExpenseJuniorSubordinatedDebentures	1548000	USD
	us-gaap	Interest Expense Junior Subordinated Debentures InterestExpenseJuniorSubordinatedDebentures	3396000	USD
	us-gaap	Interest Expense Junior Subordinated Debentures InterestExpenseJuniorSubordinatedDebentures	2889000	USD
CY2019Q2	us-gaap	Interest Expense InterestExpense	14143000	USD
CY2018Q2	us-gaap	Interest Expense InterestExpense	7360000	USD
	us-gaap	Interest Expense InterestExpense	28035000	USD
	us-gaap	Interest Expense InterestExpense	12807000	USD
CY2019Q2	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	116695000	USD
CY2018Q2	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	105063000	USD
	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	232799000	USD
	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	204436000	USD
CY2019Q2	us-gaap	Provision For Loan And Lease Losses ProvisionForLoanAndLeaseLosses	2000000	USD
CY2018Q2	us-gaap	Provision For Loan And Lease Losses ProvisionForLoanAndLeaseLosses	2000000	USD
	us-gaap	Provision For Loan And Lease Losses ProvisionForLoanAndLeaseLosses	4000000	USD
	us-gaap	Provision For Loan And Lease Losses ProvisionForLoanAndLeaseLosses	4000000	USD
CY2019Q2	us-gaap	Interest Income Expense After Provision For Loan Loss InterestIncomeExpenseAfterProvisionForLoanLoss	114695000	USD
CY2018Q2	us-gaap	Interest Income Expense After Provision For Loan Loss InterestIncomeExpenseAfterProvisionForLoanLoss	103063000	USD
	us-gaap	Interest Income Expense After Provision For Loan Loss InterestIncomeExpenseAfterProvisionForLoanLoss	228799000	USD
	us-gaap	Interest Income Expense After Provision For Loan Loss InterestIncomeExpenseAfterProvisionForLoanLoss	200436000	USD
CY2019Q2	banr	Total Deposit Feesand Other Service Charges TotalDepositFeesandOtherServiceCharges	14046000	USD
CY2018Q2	banr	Total Deposit Feesand Other Service Charges TotalDepositFeesandOtherServiceCharges	11985000	USD
	banr	Total Deposit Feesand Other Service Charges TotalDepositFeesandOtherServiceCharges	26664000	USD
	banr	Total Deposit Feesand Other Service Charges TotalDepositFeesandOtherServiceCharges	23281000	USD
CY2019Q2	us-gaap	Bank Owned Life Insurance Income BankOwnedLifeInsuranceIncome	1123000	USD
CY2018Q2	us-gaap	Bank Owned Life Insurance Income BankOwnedLifeInsuranceIncome	933000	USD
	us-gaap	Bank Owned Life Insurance Income BankOwnedLifeInsuranceIncome	2399000	USD
	us-gaap	Bank Owned Life Insurance Income BankOwnedLifeInsuranceIncome	1785000	USD
CY2019Q2	us-gaap	Other Income OtherIncome	1713000	USD
CY2018Q2	us-gaap	Other Income OtherIncome	3388000	USD
	us-gaap	Other Income OtherIncome	2517000	USD
	us-gaap	Other Income OtherIncome	4426000	USD
CY2019Q2	us-gaap	Other Operating Income OtherOperatingIncome	22818000	USD
CY2018Q2	us-gaap	Other Operating Income OtherOperatingIncome	20949000	USD
	us-gaap	Other Operating Income OtherOperatingIncome	40931000	USD
	us-gaap	Other Operating Income OtherOperatingIncome	38999000	USD
CY2019Q2	us-gaap	Debt And Equity Securities Gain Loss DebtAndEquitySecuritiesGainLoss	-28000	USD
CY2018Q2	us-gaap	Debt And Equity Securities Gain Loss DebtAndEquitySecuritiesGainLoss	44000	USD
	us-gaap	Debt And Equity Securities Gain Loss DebtAndEquitySecuritiesGainLoss	-27000	USD
	us-gaap	Debt And Equity Securities Gain Loss DebtAndEquitySecuritiesGainLoss	48000	USD
CY2019Q2	us-gaap	Increase Decrease In Financial Instruments Used In Operating Activities IncreaseDecreaseInFinancialInstrumentsUsedInOperatingActivities	-114000	USD
CY2018Q2	us-gaap	Increase Decrease In Financial Instruments Used In Operating Activities IncreaseDecreaseInFinancialInstrumentsUsedInOperatingActivities	224000	USD
	us-gaap	Increase Decrease In Financial Instruments Used In Operating Activities IncreaseDecreaseInFinancialInstrumentsUsedInOperatingActivities	-103000	USD
	us-gaap	Increase Decrease In Financial Instruments Used In Operating Activities IncreaseDecreaseInFinancialInstrumentsUsedInOperatingActivities	3532000	USD
CY2019Q2	us-gaap	Operating Income Loss OperatingIncomeLoss	22676000	USD
CY2018Q2	us-gaap	Operating Income Loss OperatingIncomeLoss	21217000	USD
	us-gaap	Operating Income Loss OperatingIncomeLoss	40801000	USD
	us-gaap	Operating Income Loss OperatingIncomeLoss	42579000	USD
CY2019Q2	us-gaap	Labor And Related Expense LaborAndRelatedExpense	55629000	USD
CY2018Q2	us-gaap	Labor And Related Expense LaborAndRelatedExpense	51494000	USD
	us-gaap	Labor And Related Expense LaborAndRelatedExpense	110269000	USD
	us-gaap	Labor And Related Expense LaborAndRelatedExpense	101561000	USD
CY2019Q2	banr	Capitalized Loan Origination Costs CapitalizedLoanOriginationCosts	7399000	USD
CY2018Q2	banr	Capitalized Loan Origination Costs CapitalizedLoanOriginationCosts	4733000	USD
	banr	Capitalized Loan Origination Costs CapitalizedLoanOriginationCosts	12248000	USD
	banr	Capitalized Loan Origination Costs CapitalizedLoanOriginationCosts	8744000	USD
CY2019Q2	us-gaap	Occupancy Net OccupancyNet	12681000	USD
CY2018Q2	us-gaap	Occupancy Net OccupancyNet	11574000	USD
	us-gaap	Occupancy Net OccupancyNet	26447000	USD
	us-gaap	Information Technology And Data Processing InformationTechnologyAndDataProcessing	10599000	USD
	us-gaap	Information Technology And Data Processing InformationTechnologyAndDataProcessing	8945000	USD
	us-gaap	Occupancy Net OccupancyNet	23340000	USD
CY2019Q2	us-gaap	Information Technology And Data Processing InformationTechnologyAndDataProcessing	5273000	USD
CY2018Q2	us-gaap	Information Technology And Data Processing InformationTechnologyAndDataProcessing	4564000	USD
CY2019Q2	banr	Payment And Card Processing Expenses PaymentAndCardProcessingExpenses	4041000	USD
CY2018Q2	banr	Payment And Card Processing Expenses PaymentAndCardProcessingExpenses	3731000	USD
	banr	Payment And Card Processing Expenses PaymentAndCardProcessingExpenses	8025000	USD
	banr	Payment And Card Processing Expenses PaymentAndCardProcessingExpenses	7431000	USD
CY2019Q2	us-gaap	Professional And Contract Services Expense ProfessionalAndContractServicesExpense	2336000	USD
CY2018Q2	us-gaap	Professional And Contract Services Expense ProfessionalAndContractServicesExpense	3838000	USD
	us-gaap	Professional And Contract Services Expense ProfessionalAndContractServicesExpense	4770000	USD
	us-gaap	Professional And Contract Services Expense ProfessionalAndContractServicesExpense	8266000	USD
CY2019Q2	us-gaap	Marketing And Advertising Expense MarketingAndAdvertisingExpense	2065000	USD
CY2018Q2	us-gaap	Marketing And Advertising Expense MarketingAndAdvertisingExpense	2141000	USD
	us-gaap	Marketing And Advertising Expense MarketingAndAdvertisingExpense	3594000	USD
	us-gaap	Marketing And Advertising Expense MarketingAndAdvertisingExpense	3971000	USD
CY2019Q2	us-gaap	Federal Deposit Insurance Corporation Premium Expense FederalDepositInsuranceCorporationPremiumExpense	1418000	USD
CY2018Q2	us-gaap	Federal Deposit Insurance Corporation Premium Expense FederalDepositInsuranceCorporationPremiumExpense	1021000	USD
	us-gaap	Federal Deposit Insurance Corporation Premium Expense FederalDepositInsuranceCorporationPremiumExpense	2836000	USD
	us-gaap	Federal Deposit Insurance Corporation Premium Expense FederalDepositInsuranceCorporationPremiumExpense	2362000	USD
CY2019Q2	us-gaap	Taxes Other TaxesOther	1007000	USD
CY2018Q2	us-gaap	Taxes Other TaxesOther	816000	USD
	us-gaap	Taxes Other TaxesOther	1952000	USD
	us-gaap	Taxes Other TaxesOther	1529000	USD
CY2019Q2	us-gaap	Other Revenue Expense From Real Estate Operations OtherRevenueExpenseFromRealEstateOperations	-260000	USD
CY2018Q2	us-gaap	Other Revenue Expense From Real Estate Operations OtherRevenueExpenseFromRealEstateOperations	319000	USD
	us-gaap	Other Revenue Expense From Real Estate Operations OtherRevenueExpenseFromRealEstateOperations	-137000	USD
	us-gaap	Other Revenue Expense From Real Estate Operations OtherRevenueExpenseFromRealEstateOperations	-121000	USD
CY2019Q2	banr	Amortization Of Core Deposit Intangible Assets AmortizationOfCoreDepositIntangibleAssets	2053000	USD
CY2018Q2	banr	Amortization Of Core Deposit Intangible Assets AmortizationOfCoreDepositIntangibleAssets	1382000	USD
	banr	Amortization Of Core Deposit Intangible Assets AmortizationOfCoreDepositIntangibleAssets	4105000	USD
	banr	Amortization Of Core Deposit Intangible Assets AmortizationOfCoreDepositIntangibleAssets	2764000	USD
CY2019Q2	us-gaap	Other Expenses OtherExpenses	7051000	USD
CY2018Q2	us-gaap	Other Expenses OtherExpenses	7128000	USD
	us-gaap	Other Expenses OtherExpenses	13795000	USD
	us-gaap	Other Expenses OtherExpenses	12797000	USD
CY2019Q2	banr	Noninterest Operating Expense Before Acquisition Related Costs NoninterestOperatingExpenseBeforeAcquisitionRelatedCosts	86415000	USD
CY2018Q2	banr	Noninterest Operating Expense Before Acquisition Related Costs NoninterestOperatingExpenseBeforeAcquisitionRelatedCosts	82637000	USD
	banr	Noninterest Operating Expense Before Acquisition Related Costs NoninterestOperatingExpenseBeforeAcquisitionRelatedCosts	174281000	USD
	banr	Noninterest Operating Expense Before Acquisition Related Costs NoninterestOperatingExpenseBeforeAcquisitionRelatedCosts	164343000	USD
CY2019Q2	us-gaap	Business Combination Acquisition Related Costs BusinessCombinationAcquisitionRelatedCosts	301000	USD
CY2018Q2	us-gaap	Business Combination Acquisition Related Costs BusinessCombinationAcquisitionRelatedCosts	0	USD
	us-gaap	Business Combination Acquisition Related Costs BusinessCombinationAcquisitionRelatedCosts	2449000	USD
	us-gaap	Business Combination Acquisition Related Costs BusinessCombinationAcquisitionRelatedCosts	0	USD
CY2019Q2	us-gaap	Noninterest Expense NoninterestExpense	86716000	USD
CY2018Q2	us-gaap	Noninterest Expense NoninterestExpense	82637000	USD
	us-gaap	Noninterest Expense NoninterestExpense	176730000	USD
	us-gaap	Noninterest Expense NoninterestExpense	164343000	USD
CY2019Q2	us-gaap	Income Loss From Continuing Operations Before Income Taxes Domestic IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic	50655000	USD
CY2018Q2	us-gaap	Income Loss From Continuing Operations Before Income Taxes Domestic IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic	41643000	USD
	us-gaap	Income Loss From Continuing Operations Before Income Taxes Domestic IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic	92870000	USD
	us-gaap	Income Loss From Continuing Operations Before Income Taxes Domestic IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic	78672000	USD
CY2019Q2	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	10955000	USD
CY2018Q2	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	9219000	USD
	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	19824000	USD
	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	17458000	USD
CY2019Q2	us-gaap	Net Income Loss NetIncomeLoss	39700000	USD
CY2018Q2	us-gaap	Net Income Loss NetIncomeLoss	32424000	USD
	us-gaap	Net Income Loss NetIncomeLoss	73046000	USD
	us-gaap	Net Income Loss NetIncomeLoss	61214000	USD
CY2019Q2	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.14
CY2018Q2	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.01
	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	2.09
	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.89
CY2019Q2	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.14
CY2018Q2	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.00
	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	2.09
	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.89
CY2019Q2	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.41
CY2018Q2	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.85
	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.82
	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	1.20
CY2019Q2	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	34831047	shares
CY2018Q2	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	32250514	shares
	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	34940106	shares
	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	32323635	shares
CY2019Q2	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	34882359	shares
CY2018Q2	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	32331609	shares
	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	35028881	shares
	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	32422287	shares
CY2019Q2	us-gaap	Net Income Loss NetIncomeLoss	39700000	USD
CY2018Q2	us-gaap	Net Income Loss NetIncomeLoss	32424000	USD
CY2018Q3	us-gaap	Net Income Loss NetIncomeLoss	37773000	USD
	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Before Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesBeforeTax	-26000	USD
	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Before Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesBeforeTax	51000	USD
	us-gaap	Net Income Loss NetIncomeLoss	73046000	USD
	us-gaap	Net Income Loss NetIncomeLoss	61214000	USD
CY2019Q2	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Before Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodBeforeTax	20751000	USD
CY2018Q2	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Before Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodBeforeTax	-8305000	USD
	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Before Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodBeforeTax	37407000	USD
	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Before Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodBeforeTax	-23073000	USD
CY2019Q2	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Before Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesBeforeTax	-27000	USD
CY2018Q2	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Before Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesBeforeTax	49000	USD
CY2019Q2	us-gaap	Other Comprehensive Income Loss Financial Liability Fair Value Option Before Tax After Reclassification Adjustment OtherComprehensiveIncomeLossFinancialLiabilityFairValueOptionBeforeTaxAfterReclassificationAdjustment	296000	USD
CY2018Q2	us-gaap	Other Comprehensive Income Loss Financial Liability Fair Value Option Before Tax After Reclassification Adjustment OtherComprehensiveIncomeLossFinancialLiabilityFairValueOptionBeforeTaxAfterReclassificationAdjustment	-258000	USD
	us-gaap	Other Comprehensive Income Loss Financial Liability Fair Value Option Before Tax After Reclassification Adjustment OtherComprehensiveIncomeLossFinancialLiabilityFairValueOptionBeforeTaxAfterReclassificationAdjustment	470000	USD
	us-gaap	Other Comprehensive Income Loss Financial Liability Fair Value Option Before Tax After Reclassification Adjustment OtherComprehensiveIncomeLossFinancialLiabilityFairValueOptionBeforeTaxAfterReclassificationAdjustment	-14067000	USD
CY2019Q2	us-gaap	Other Comprehensive Income Loss Tax OtherComprehensiveIncomeLossTax	5058000	USD
CY2018Q2	us-gaap	Other Comprehensive Income Loss Tax OtherComprehensiveIncomeLossTax	-2091000	USD
	us-gaap	Other Comprehensive Income Loss Tax OtherComprehensiveIncomeLossTax	9097000	USD
	us-gaap	Other Comprehensive Income Loss Tax OtherComprehensiveIncomeLossTax	-8893000	USD
CY2019Q2	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	16016000	USD
CY2018Q2	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-6521000	USD
	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	28806000	USD
	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-28298000	USD
CY2019Q2	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	55716000	USD
CY2018Q2	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	25903000	USD
	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	101852000	USD
	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	32916000	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	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
	us-gaap	Net Income Loss NetIncomeLoss	73046000	USD
	us-gaap	Net Income Loss NetIncomeLoss	61214000	USD
	us-gaap	Depreciation Depreciation	8747000	USD
	us-gaap	Depreciation Depreciation	7253000	USD
	us-gaap	Deferred Revenue Period Increase Decrease DeferredRevenuePeriodIncreaseDecrease	-647000	USD
	us-gaap	Deferred Revenue Period Increase Decrease DeferredRevenuePeriodIncreaseDecrease	-1518000	USD
	banr	Amortization Of Core Deposit Intangible Assets AmortizationOfCoreDepositIntangibleAssets	4105000	USD
	banr	Amortization Of Core Deposit Intangible Assets AmortizationOfCoreDepositIntangibleAssets	2764000	USD
	us-gaap	Debt And Equity Securities Gain Loss DebtAndEquitySecuritiesGainLoss	-27000	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	-103000	USD
	us-gaap	Increase Decrease In Other Financial Instruments Used In Operating Activities IncreaseDecreaseInOtherFinancialInstrumentsUsedInOperatingActivities	3532000	USD
	us-gaap	Gain Loss On Sales Of Assets And Asset Impairment Charges GainLossOnSalesOfAssetsAndAssetImpairmentCharges	0	USD
	us-gaap	Gain Loss On Sales Of Assets And Asset Impairment Charges GainLossOnSalesOfAssetsAndAssetImpairmentCharges	249000	USD
	us-gaap	Increase Decrease In Deferred Income Taxes IncreaseDecreaseInDeferredIncomeTaxes	-13693000	USD
	us-gaap	Increase Decrease In Deferred Income Taxes IncreaseDecreaseInDeferredIncomeTaxes	6510000	USD
	us-gaap	Increase Decrease In Accrued Income Taxes Payable IncreaseDecreaseInAccruedIncomeTaxesPayable	943000	USD
	us-gaap	Life Insurance Corporate Or Bank Owned Change In Value LifeInsuranceCorporateOrBankOwnedChangeInValue	2382000	USD
	us-gaap	Life Insurance Corporate Or Bank Owned Change In Value LifeInsuranceCorporateOrBankOwnedChangeInValue	1768000	USD
	us-gaap	Gain Loss On Sales Of Loans Net GainLossOnSalesOfLoansNet	6730000	USD
	us-gaap	Gain Loss On Sales Of Loans Net GainLossOnSalesOfLoansNet	6533000	USD
	us-gaap	Gain Loss On Sale Of Other Assets GainLossOnSaleOfOtherAssets	-721000	USD
	us-gaap	Gain Loss On Sale Of Other Assets GainLossOnSaleOfOtherAssets	1858000	USD
	us-gaap	Provision For Loan And Lease Losses ProvisionForLoanAndLeaseLosses	4000000	USD
	us-gaap	Provision For Loan And Lease Losses ProvisionForLoanAndLeaseLosses	4000000	USD
	us-gaap	Provision For Loan Lease And Other Losses ProvisionForLoanLeaseAndOtherLosses	0	USD
	us-gaap	Provision For Loan Lease And Other Losses ProvisionForLoanLeaseAndOtherLosses	160000	USD
	us-gaap	Payments For Origination And Purchases Of Loans Held For Sale PaymentsForOriginationAndPurchasesOfLoansHeldForSale	397227000	USD
	us-gaap	Payments For Origination And Purchases Of Loans Held For Sale PaymentsForOriginationAndPurchasesOfLoansHeldForSale	415790000	USD
	us-gaap	Proceeds From Sale Of Loans Held For Sale ProceedsFromSaleOfLoansHeldForSale	404244000	USD
	us-gaap	Proceeds From Sale Of Loans Held For Sale ProceedsFromSaleOfLoansHeldForSale	384215000	USD
	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	12131000	USD
	us-gaap	Increase Decrease In Accrued Income Taxes Payable IncreaseDecreaseInAccruedIncomeTaxesPayable	5603000	USD
	us-gaap	Share Based Compensation ShareBasedCompensation	3394000	USD
	us-gaap	Share Based Compensation ShareBasedCompensation	3231000	USD
	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	-1734000	USD
	us-gaap	Increase Decrease In Other Operating Liabilities IncreaseDecreaseInOtherOperatingLiabilities	-5911000	USD
	us-gaap	Increase Decrease In Other Operating Liabilities IncreaseDecreaseInOtherOperatingLiabilities	1797000	USD
	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	87995000	USD
	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	34165000	USD
	us-gaap	Payments To Acquire Available For Sale Securities PaymentsToAcquireAvailableForSaleSecurities	52525000	USD
	us-gaap	Payments To Acquire Available For Sale Securities PaymentsToAcquireAvailableForSaleSecurities	591265000	USD
	us-gaap	Proceeds From Maturities Prepayments And Calls Of Available For Sale Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities	120638000	USD
	us-gaap	Proceeds From Maturities Prepayments And Calls Of Available For Sale Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities	69853000	USD
	us-gaap	Proceeds From Sale Of Available For Sale Securities ProceedsFromSaleOfAvailableForSaleSecurities	40759000	USD
	us-gaap	Proceeds From Sale Of Available For Sale Securities ProceedsFromSaleOfAvailableForSaleSecurities	8363000	USD
	us-gaap	Payments To Acquire Held To Maturity Securities PaymentsToAcquireHeldToMaturitySecurities	0	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	29936000	USD
	us-gaap	Proceeds From Maturities Prepayments And Calls Of Held To Maturity Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfHeldToMaturitySecurities	4422000	USD
	banr	Loans Originated Netof Principal Collections LoansOriginatedNetofPrincipalCollections	-64641000	USD
	banr	Loans Originated Netof Principal Collections LoansOriginatedNetofPrincipalCollections	-82461000	USD
	us-gaap	Payments To Acquire Loans Receivable PaymentsToAcquireLoansReceivable	777000	USD
	us-gaap	Payments To Acquire Loans Receivable PaymentsToAcquireLoansReceivable	2268000	USD
	us-gaap	Proceeds From Sale Of Loans Held For Investment ProceedsFromSaleOfLoansHeldForInvestment	7155000	USD
	us-gaap	Proceeds From Sale Of Loans Held For Investment ProceedsFromSaleOfLoansHeldForInvestment	4733000	USD
	banr	Netcashpaidrelatedtobranchdivestiture Netcashpaidrelatedtobranchdivestiture	0	USD
	banr	Netcashpaidrelatedtobranchdivestiture Netcashpaidrelatedtobranchdivestiture	20412000	USD
	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	11759000	USD
	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	9925000	USD
	us-gaap	Proceeds From Sale Of Property Plant And Equipment ProceedsFromSaleOfPropertyPlantAndEquipment	4243000	USD
	us-gaap	Proceeds From Sale Of Property Plant And Equipment ProceedsFromSaleOfPropertyPlantAndEquipment	6367000	USD
	us-gaap	Proceeds From Sale Of Federal Home Loan Bank Stock ProceedsFromSaleOfFederalHomeLoanBankStock	90373000	USD
	us-gaap	Proceeds From Sale Of Federal Home Loan Bank Stock ProceedsFromSaleOfFederalHomeLoanBankStock	79878000	USD
	us-gaap	Payments To Acquire Federal Home Loan Bank Stock PaymentsToAcquireFederalHomeLoanBankStock	93000000	USD
	us-gaap	Payments To Acquire Federal Home Loan Bank Stock PaymentsToAcquireFederalHomeLoanBankStock	89460000	USD
	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	-947000	USD
	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	-417000	USD
	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	71349000	USD
	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-630227000	USD
	us-gaap	Increase Decrease In Deposits IncreaseDecreaseInDeposits	-188081000	USD
	us-gaap	Increase Decrease In Deposits IncreaseDecreaseInDeposits	364890000	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	189000	USD
	us-gaap	Payments For Federal Home Loan Bank Advances PaymentsForFederalHomeLoanBankAdvances	5000	USD
	banr	Proceedsfrom Repaymentsof Federal Home Loan Bank Borrowings ProceedsfromRepaymentsofFederalHomeLoanBankBorrowings	-234000000	USD
	banr	Proceedsfrom Repaymentsof Federal Home Loan Bank Borrowings ProceedsfromRepaymentsofFederalHomeLoanBankBorrowings	239000000	USD
	us-gaap	Increase Decrease In Other Loans IncreaseDecreaseInOtherLoans	626000	USD
	us-gaap	Increase Decrease In Other Loans IncreaseDecreaseInOtherLoans	-16598000	USD
	us-gaap	Payments Of Dividends PaymentsOfDividends	27906000	USD
	us-gaap	Payments Of Dividends PaymentsOfDividends	19494000	USD
	us-gaap	Payments Related To Tax Withholding For Share Based Compensation PaymentsRelatedToTaxWithholdingForShareBasedCompensation	1869000	USD
	us-gaap	Payments Related To Tax Withholding For Share Based Compensation PaymentsRelatedToTaxWithholdingForShareBasedCompensation	1343000	USD
	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	32073000	USD
	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	15359000	USD
	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-184744000	USD
	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	584287000	USD
	us-gaap	Cash And Cash Equivalents Period Increase Decrease CashAndCashEquivalentsPeriodIncreaseDecrease	-25400000	USD
	us-gaap	Cash And Cash Equivalents Period Increase Decrease CashAndCashEquivalentsPeriodIncreaseDecrease	-11775000	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
CY2019Q2	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	246796000	USD
CY2018Q2	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	249425000	USD
	us-gaap	Interest Paid InterestPaid	29892000	USD
	us-gaap	Interest Paid InterestPaid	11720000	USD
	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	13477000	USD
	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	8806000	USD
	us-gaap	Transfer To Other Real Estate TransferToOtherRealEstate	154000	USD
	us-gaap	Transfer To Other Real Estate TransferToOtherRealEstate	1419000	USD
CY2019Q2	us-gaap	Dividends Payable Current And Noncurrent DividendsPayableCurrentAndNoncurrent	14714000	USD
CY2018Q2	us-gaap	Dividends Payable Current And Noncurrent DividendsPayableCurrentAndNoncurrent	27833000	USD
CY2019Q2	us-gaap	Trading Securities Cost TradingSecuritiesCost	27203000	USD
CY2019Q2	us-gaap	Trading Securities TradingSecurities	25741000	USD
CY2019Q2	us-gaap	Available For Sale Securities Amortized Cost AvailableForSaleSecuritiesAmortizedCost	1535775000	USD
CY2019Q2	us-gaap	Available For Sale Securities Accumulated Gross Unrealized Gain Before Tax AvailableForSaleSecuritiesAccumulatedGrossUnrealizedGainBeforeTax	27751000	USD
CY2019Q2	us-gaap	Available For Sale Securities Accumulated Gross Unrealized Loss Before Tax AvailableForSaleSecuritiesAccumulatedGrossUnrealizedLossBeforeTax	2517000	USD
CY2019Q2	us-gaap	Available For Sale Securities AvailableForSaleSecurities	1561009000	USD
CY2019Q2	us-gaap	Held To Maturity Securities Amortized Cost Before Other Than Temporary Impairment HeldToMaturitySecuritiesAmortizedCostBeforeOtherThanTemporaryImpairment	203222000	USD
CY2019Q2	us-gaap	Held To Maturity Securities Accumulated Unrecognized Holding Gain HeldToMaturitySecuritiesAccumulatedUnrecognizedHoldingGain	4365000	USD
CY2019Q2	us-gaap	Held To Maturity Securities Accumulated Unrecognized Holding Loss HeldToMaturitySecuritiesAccumulatedUnrecognizedHoldingLoss	670000	USD
CY2019Q2	us-gaap	Held To Maturity Securities Fair Value HeldToMaturitySecuritiesFairValue	206917000	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
CY2019Q2	us-gaap	Available For Sale Securities Continuous Unrealized Loss Position Less Than Twelve Months Fair Value AvailableForSaleSecuritiesContinuousUnrealizedLossPositionLessThanTwelveMonthsFairValue	82093000	USD
CY2019Q2	us-gaap	Available For Sale Securities Continuous Unrealized Loss Position Less Than12 Months Accumulated Loss AvailableForSaleSecuritiesContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss	527000	USD
CY2019Q2	us-gaap	Available For Sale Securities Continuous Unrealized Loss Position Twelve Months Or Longer Fair Value AvailableForSaleSecuritiesContinuousUnrealizedLossPositionTwelveMonthsOrLongerFairValue	284527000	USD
CY2019Q2	us-gaap	Available For Sale Securities Continuous Unrealized Loss Position12 Months Or Longer Accumulated Loss AvailableForSaleSecuritiesContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss	1990000	USD
CY2019Q2	us-gaap	Available For Sale Securities Continuous Unrealized Loss Position Fair Value AvailableForSaleSecuritiesContinuousUnrealizedLossPositionFairValue	366620000	USD
CY2019Q2	us-gaap	Available For Sale Securities Continuous Unrealized Loss Position Accumulated Loss AvailableForSaleSecuritiesContinuousUnrealizedLossPositionAccumulatedLoss	2517000	USD
CY2019Q2	us-gaap	Held To Maturity Securities Continuous Unrealized Loss Position Less Than Twelve Months Fair Value HeldToMaturitySecuritiesContinuousUnrealizedLossPositionLessThanTwelveMonthsFairValue	2211000	USD
CY2019Q2	us-gaap	Held To Maturity Securities Continuous Unrealized Loss Position Less Than12 Months Accumulated Loss HeldToMaturitySecuritiesContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss	1000	USD
CY2019Q2	us-gaap	Held To Maturity Securities Continuous Unrealized Loss Position Twelve Months Or Longer Fair Value HeldToMaturitySecuritiesContinuousUnrealizedLossPositionTwelveMonthsOrLongerFairValue	29994000	USD
CY2019Q2	us-gaap	Held To Maturity Securities Continuous Unrealized Loss Position12 Months Or Longer Accumulated Loss HeldToMaturitySecuritiesContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss	669000	USD
CY2019Q2	us-gaap	Held To Maturity Securities Continuous Unrealized Loss Position Fair Value HeldToMaturitySecuritiesContinuousUnrealizedLossPositionFairValue	32205000	USD
CY2019Q2	us-gaap	Held To Maturity Securities Continuous Unrealized Loss Position Accumulated Loss HeldToMaturitySecuritiesContinuousUnrealizedLossPositionAccumulatedLoss	670000	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	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
CY2019Q2	us-gaap	Availableforsale Securities In Unrealized Loss Positions Qualitative Disclosure Number Of Positions1 AvailableforsaleSecuritiesInUnrealizedLossPositionsQualitativeDisclosureNumberOfPositions1	105	security
CY2018Q4	us-gaap	Availableforsale Securities In Unrealized Loss Positions Qualitative Disclosure Number Of Positions1 AvailableforsaleSecuritiesInUnrealizedLossPositionsQualitativeDisclosureNumberOfPositions1	271	security
CY2019Q2	us-gaap	Held To Maturity Securities In Unrealized Loss Positions Qualitative Disclosure Number Of Positions HeldToMaturitySecuritiesInUnrealizedLossPositionsQualitativeDisclosureNumberOfPositions	14	security
CY2018Q4	us-gaap	Held To Maturity Securities In Unrealized Loss Positions Qualitative Disclosure Number Of Positions HeldToMaturitySecuritiesInUnrealizedLossPositionsQualitativeDisclosureNumberOfPositions	90	security
CY2019Q2	banr	Trading Securities Number Of Securities In Nonaccrual Status TradingSecuritiesNumberOfSecuritiesInNonaccrualStatus	0	security
	us-gaap	Trading Securities Unrealized Holding Loss TradingSecuritiesUnrealizedHoldingLoss	-103000	USD
	us-gaap	Trading Securities Unrealized Holding Gain TradingSecuritiesUnrealizedHoldingGain	3400000	USD
	banr	Available For Sale Securities Gross Realized Gains Losses Number Of Securities Sold AvailableForSaleSecuritiesGrossRealizedGainsLossesNumberOfSecuritiesSold	36	security
	us-gaap	Available For Sale Securities Gross Realized Gain Loss Net AvailableForSaleSecuritiesGrossRealizedGainLossNet	-26000	USD
	us-gaap	Available For Sale Securities Gross Realized Gain Loss Net AvailableForSaleSecuritiesGrossRealizedGainLossNet	51000000	USD
CY2019Q2	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
CY2019Q2	banr	Held To Maturity Securities Number Of Securities In Nonaccrual Status HeldToMaturitySecuritiesNumberOfSecuritiesInNonaccrualStatus	0	security
CY2019Q2	banr	Trading Securities Debt Maturities Next Twelve Months Amortized Cost Basis TradingSecuritiesDebtMaturitiesNextTwelveMonthsAmortizedCostBasis	0	USD
CY2019Q2	banr	Trading Securities Debt Maturities Next Twelve Months Fair Value TradingSecuritiesDebtMaturitiesNextTwelveMonthsFairValue	0	USD
CY2019Q2	us-gaap	Available For Sale Securities Debt Maturities Within One Year Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearAmortizedCost	2554000	USD
CY2019Q2	us-gaap	Available For Sale Securities Debt Maturities Within One Year Fair Value AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearFairValue	2556000	USD
CY2019Q2	us-gaap	Held To Maturity Securities Debt Maturities Within One Year Fair Value HeldToMaturitySecuritiesDebtMaturitiesWithinOneYearFairValue	4604000	USD
CY2019Q2	banr	Trading Securities Debt Maturities Year Two Through Five Amortized Cost Basis TradingSecuritiesDebtMaturitiesYearTwoThroughFiveAmortizedCostBasis	0	USD
CY2019Q2	banr	Trading Securities Debt Maturities Year Two Through Five Fair Value TradingSecuritiesDebtMaturitiesYearTwoThroughFiveFairValue	0	USD
CY2019Q2	us-gaap	Available For Sale Securities Debt Maturities After One Through Five Years Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsAmortizedCost	57247000	USD
CY2019Q2	us-gaap	Available For Sale Securities Debt Maturities After One Through Five Years Fair Value AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsFairValue	58238000	USD
CY2019Q2	us-gaap	Held To Maturity Securities Debt Maturities After One Through Five Years Net Carrying Amount HeldToMaturitySecuritiesDebtMaturitiesAfterOneThroughFiveYearsNetCarryingAmount	63805000	USD
CY2019Q2	us-gaap	Held To Maturity Securities Debt Maturities After One Through Five Years Fair Value HeldToMaturitySecuritiesDebtMaturitiesAfterOneThroughFiveYearsFairValue	64663000	USD
CY2019Q2	banr	Trading Securities Debt Maturities Year Six Through Ten Amortized Cost Basis TradingSecuritiesDebtMaturitiesYearSixThroughTenAmortizedCostBasis	0	USD
CY2019Q2	banr	Trading Securities Debt Maturities Year Six Through Ten Fair Value TradingSecuritiesDebtMaturitiesYearSixThroughTenFairValue	0	USD
CY2019Q2	us-gaap	Available For Sale Securities Debt Maturities After Five Through Ten Years Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsAmortizedCost	393053000	USD
CY2019Q2	us-gaap	Available For Sale Securities Debt Maturities After Five Through Ten Years Fair Value AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsFairValue	404449000	USD
CY2019Q2	us-gaap	Held To Maturity Securities Debt Maturities After Five Through Ten Years Net Carrying Amount HeldToMaturitySecuritiesDebtMaturitiesAfterFiveThroughTenYearsNetCarryingAmount	43943000	USD
CY2019Q2	us-gaap	Held To Maturity Securities Debt Maturities After Five Through Ten Years Fair Value HeldToMaturitySecuritiesDebtMaturitiesAfterFiveThroughTenYearsFairValue	45457000	USD
CY2019Q2	banr	Trading Securities Debt Maturities Year Eleven Through Twenty Amortized Cost Basis TradingSecuritiesDebtMaturitiesYearElevenThroughTwentyAmortizedCostBasis	27203000	USD
CY2019Q2	banr	Trading Securities Debt Maturities Year Eleven Through Twenty Fair Value TradingSecuritiesDebtMaturitiesYearElevenThroughTwentyFairValue	25741000	USD
CY2019Q2	banr	Available For Sale Securities Debt Maturities Year Eleven Through Twenty Amortized Cost Basis AvailableForSaleSecuritiesDebtMaturitiesYearElevenThroughTwentyAmortizedCostBasis	178802000	USD
CY2019Q2	banr	Available For Sale Securities Debt Maturities Year Eleven Through Twenty Fair Value AvailableForSaleSecuritiesDebtMaturitiesYearElevenThroughTwentyFairValue	183689000	USD
CY2019Q2	banr	Held To Maturity Securities Debt Maturities After Eleven Through Twenty Years Net Carrying Amount HeldToMaturitySecuritiesDebtMaturitiesAfterElevenThroughTwentyYearsNetCarryingAmount	58805000	USD
CY2019Q2	banr	Held To Maturity Securities Debt Maturities Year Eleven Through Twenty Fair Value HeldToMaturitySecuritiesDebtMaturitiesYearElevenThroughTwentyFairValue	60672000	USD
CY2019Q2	banr	Trading Securities Debt Maturities After Twenty Years Amortized Cost Basis TradingSecuritiesDebtMaturitiesAfterTwentyYearsAmortizedCostBasis	0	USD
CY2019Q2	banr	Trading Securities Debt Maturities After Twenty Years Fair Value TradingSecuritiesDebtMaturitiesAfterTwentyYearsFairValue	0	USD
CY2019Q2	banr	Available For Sale Securities Debt Maturities After Twenty Years Amortized Cost Basis AvailableForSaleSecuritiesDebtMaturitiesAfterTwentyYearsAmortizedCostBasis	904119000	USD
CY2019Q2	banr	Available For Sale Securities Debt Maturities After Twenty Years Fair Value AvailableForSaleSecuritiesDebtMaturitiesAfterTwentyYearsFairValue	912077000	USD
CY2019Q2	banr	Held To Maturity Securities Debt Maturities After Twenty Years Net Carrying Amount HeldToMaturitySecuritiesDebtMaturitiesAfterTwentyYearsNetCarryingAmount	32067000	USD
CY2019Q2	banr	Held To Maturity Securities Debt Maturities After Twenty Years Fair Value HeldToMaturitySecuritiesDebtMaturitiesAfterTwentyYearsFairValue	31521000	USD
CY2019Q2	us-gaap	Trading Securities Cost TradingSecuritiesCost	27203000	USD
CY2019Q2	us-gaap	Trading Securities TradingSecurities	25741000	USD
CY2019Q2	us-gaap	Available For Sale Securities Amortized Cost AvailableForSaleSecuritiesAmortizedCost	1535775000	USD
CY2019Q2	us-gaap	Available For Sale Securities AvailableForSaleSecurities	1561009000	USD
CY2019Q2	us-gaap	Held To Maturity Securities HeldToMaturitySecurities	203222000	USD
CY2019Q2	us-gaap	Held To Maturity Securities Fair Value HeldToMaturitySecuritiesFairValue	206917000	USD
CY2019Q2	banr	Pledged Financial Instruments Not Separately Reported Securitiesfor Stateand Local Government Public Deposits PledgedFinancialInstrumentsNotSeparatelyReportedSecuritiesforStateandLocalGovernmentPublicDeposits	136556000	USD
CY2019Q2	banr	Pledged Financial Instruments Not Separately Reported Securitiesfor Stateand Local Government Public Deposits Amortized Cost PledgedFinancialInstrumentsNotSeparatelyReportedSecuritiesforStateandLocalGovernmentPublicDepositsAmortizedCost	136217000	USD
CY2019Q2	banr	Pledged Financial Instruments Not Separately Reported Securitiesfor Stateand Local Government Public Deposits Fair Value PledgedFinancialInstrumentsNotSeparatelyReportedSecuritiesforStateandLocalGovernmentPublicDepositsFairValue	139723000	USD
CY2019Q2	banr	Pledged Financial Instruments Not Separately Reported Securitiesfor Interest Rate Swap Counterparties PledgedFinancialInstrumentsNotSeparatelyReportedSecuritiesforInterestRateSwapCounterparties	15560000	USD
CY2019Q2	banr	Pledged Financial Instruments Not Separately Reported Securities For Interest Rate Swap Counterparties Amortized Cost PledgedFinancialInstrumentsNotSeparatelyReportedSecuritiesForInterestRateSwapCounterpartiesAmortizedCost	15494000	USD
CY2019Q2	banr	Pledged Financial Instruments Not Separately Reported Securities For Interest Rate Swap Counterparties Fair Value PledgedFinancialInstrumentsNotSeparatelyReportedSecuritiesForInterestRateSwapCounterpartiesFairValue	15741000	USD
CY2019Q2	us-gaap	Pledged Financial Instruments Not Separately Reported Securities For Repurchase Agreements PledgedFinancialInstrumentsNotSeparatelyReportedSecuritiesForRepurchaseAgreements	144625000	USD
CY2019Q2	banr	Pledged Financial Instruments Not Separately Reported Securities For Repurchase Agreements Amortized Cost PledgedFinancialInstrumentsNotSeparatelyReportedSecuritiesForRepurchaseAgreementsAmortizedCost	142411000	USD
CY2019Q2	banr	Pledged Financial Instruments Not Separately Reported Securities For Repurchase Agreements Fair Value PledgedFinancialInstrumentsNotSeparatelyReportedSecuritiesForRepurchaseAgreementsFairValue	144625000	USD
CY2019Q2	banr	Pledged Financial Instruments Not Separately Reported Interestbearing Depositsfor Other Debt Facilities PledgedFinancialInstrumentsNotSeparatelyReportedInterestbearingDepositsforOtherDebtFacilities	2721000	USD
CY2019Q2	banr	Pledged Financial Instruments Not Separately Reported Interestbearing Depositsfor Other Debt Facilities Amortized Cost PledgedFinancialInstrumentsNotSeparatelyReportedInterestbearingDepositsforOtherDebtFacilitiesAmortizedCost	2721000	USD
CY2019Q2	banr	Pledged Financial Instruments Not Separately Reported Interestbearing Depositsfor Other Debt Facilities Fair Value PledgedFinancialInstrumentsNotSeparatelyReportedInterestbearingDepositsforOtherDebtFacilitiesFairValue	2698000	USD
CY2019Q2	us-gaap	Pledged Financial Instruments Not Separately Reported Securities Pledged PledgedFinancialInstrumentsNotSeparatelyReportedSecuritiesPledged	299462000	USD
CY2019Q2	banr	Pledged Financial Instruments Not Separately Reported Securities Amortized Cost PledgedFinancialInstrumentsNotSeparatelyReportedSecuritiesAmortizedCost	296843000	USD
CY2019Q2	banr	Pledged Financial Instruments Not Separately Reported Securities Fair Value PledgedFinancialInstrumentsNotSeparatelyReportedSecuritiesFairValue	302787000	USD
CY2019Q2	us-gaap	Loans And Leases Receivable Gross Carrying Amount LoansAndLeasesReceivableGrossCarryingAmount	8746550000	USD
CY2019Q2	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
CY2019Q2	us-gaap	Loans And Leases Receivable Allowance LoansAndLeasesReceivableAllowance	98254000	USD
CY2018Q4	us-gaap	Loans And Leases Receivable Allowance LoansAndLeasesReceivableAllowance	96485000	USD
CY2019Q2	us-gaap	Loans And Leases Receivable Net Reported Amount LoansAndLeasesReceivableNetReportedAmount	8648296000	USD
CY2018Q4	us-gaap	Loans And Leases Receivable Net Reported Amount LoansAndLeasesReceivableNetReportedAmount	8588110000	USD
CY2019Q2	us-gaap	Unamortized Loan Commitment And Origination Fees And Unamortized Discounts Or Premiums UnamortizedLoanCommitmentAndOriginationFeesAndUnamortizedDiscountsOrPremiums	847000	USD
CY2018Q4	us-gaap	Unamortized Loan Commitment And Origination Fees And Unamortized Discounts Or Premiums UnamortizedLoanCommitmentAndOriginationFeesAndUnamortizedDiscountsOrPremiums	-1400000	USD
CY2019Q2	us-gaap	Receivable With Imputed Interest Discount ReceivableWithImputedInterestDiscount	22600000	USD
CY2018Q4	us-gaap	Receivable With Imputed Interest Discount ReceivableWithImputedInterestDiscount	25700000	USD
CY2019Q2	us-gaap	Certain Loans Acquired In Transfer Not Accounted For As Debt Securities Outstanding Balance CertainLoansAcquiredInTransferNotAccountedForAsDebtSecuritiesOutstandingBalance	20200000	USD
CY2018Q4	us-gaap	Certain Loans Acquired In Transfer Not Accounted For As Debt Securities Outstanding Balance CertainLoansAcquiredInTransferNotAccountedForAsDebtSecuritiesOutstandingBalance	22000000.0	USD
CY2019Q2	us-gaap	Certain Loans Acquired In Transfer Not Accounted For As Debt Securities Carrying Amount Net CertainLoansAcquiredInTransferNotAccountedForAsDebtSecuritiesCarryingAmountNet	12900000	USD
CY2018Q4	us-gaap	Certain Loans Acquired In Transfer Not Accounted For As Debt Securities Carrying Amount Net CertainLoansAcquiredInTransferNotAccountedForAsDebtSecuritiesCarryingAmountNet	14400000	USD
CY2019Q1	us-gaap	Certain Loans Acquired In Transfer Not Accounted For As Debt Securities Accretable Yield CertainLoansAcquiredInTransferNotAccountedForAsDebtSecuritiesAccretableYield	4778000	USD
CY2018Q1	us-gaap	Certain Loans Acquired In Transfer Not Accounted For As Debt Securities Accretable Yield CertainLoansAcquiredInTransferNotAccountedForAsDebtSecuritiesAccretableYield	6288000	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
CY2019Q2	us-gaap	Certain Loans Acquired In Transfer Not Accounted For As Debt Securities Accretable Yield Accretion CertainLoansAcquiredInTransferNotAccountedForAsDebtSecuritiesAccretableYieldAccretion	456000	USD
CY2018Q2	us-gaap	Certain Loans Acquired In Transfer Not Accounted For As Debt Securities Accretable Yield Accretion CertainLoansAcquiredInTransferNotAccountedForAsDebtSecuritiesAccretableYieldAccretion	734000	USD
	us-gaap	Certain Loans Acquired In Transfer Not Accounted For As Debt Securities Accretable Yield Accretion CertainLoansAcquiredInTransferNotAccountedForAsDebtSecuritiesAccretableYieldAccretion	949000	USD
	us-gaap	Certain Loans Acquired In Transfer Not Accounted For As Debt Securities Accretable Yield Accretion CertainLoansAcquiredInTransferNotAccountedForAsDebtSecuritiesAccretableYieldAccretion	1831000	USD
CY2019Q2	us-gaap	Certain Loans Acquired In Transfer Not Accounted For As Debt Securities Accretable Yield Disposals Of Loans CertainLoansAcquiredInTransferNotAccountedForAsDebtSecuritiesAccretableYieldDisposalsOfLoans	0	USD
CY2018Q2	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
	us-gaap	Certain Loans Acquired In Transfer Not Accounted For As Debt Securities Accretable Yield Disposals Of Loans CertainLoansAcquiredInTransferNotAccountedForAsDebtSecuritiesAccretableYieldDisposalsOfLoans	58000	USD
CY2019Q2	us-gaap	Certain Loans Acquired In Transfer Not Accounted For As Debt Securities Accretable Yield Reclassifications From Nonaccretable Difference CertainLoansAcquiredInTransferNotAccountedForAsDebtSecuritiesAccretableYieldReclassificationsFromNonaccretableDifference	421000	USD
CY2018Q2	us-gaap	Certain Loans Acquired In Transfer Not Accounted For As Debt Securities Accretable Yield Reclassifications From Nonaccretable Difference CertainLoansAcquiredInTransferNotAccountedForAsDebtSecuritiesAccretableYieldReclassificationsFromNonaccretableDifference	555000	USD
	us-gaap	Certain Loans Acquired In Transfer Not Accounted For As Debt Securities Accretable Yield Reclassifications From Nonaccretable Difference CertainLoansAcquiredInTransferNotAccountedForAsDebtSecuritiesAccretableYieldReclassificationsFromNonaccretableDifference	476000	USD
	us-gaap	Certain Loans Acquired In Transfer Not Accounted For As Debt Securities Accretable Yield Reclassifications From Nonaccretable Difference CertainLoansAcquiredInTransferNotAccountedForAsDebtSecuritiesAccretableYieldReclassificationsFromNonaccretableDifference	1362000	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
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
CY2019Q2	us-gaap	Certain Loans Acquired In Transfer Nonaccretable Difference CertainLoansAcquiredInTransferNonaccretableDifference	6200000	USD
CY2018Q4	banr	Certain Loans Acquiredin Transfer Not Accountedforas Debt Securities Nonaccretable Difference CertainLoansAcquiredinTransferNotAccountedforasDebtSecuritiesNonaccretableDifference	7100000	USD
CY2019Q2	us-gaap	Impaired Financing Receivable Unpaid Principal Balance ImpairedFinancingReceivableUnpaidPrincipalBalance	27926000	USD
CY2019Q2	us-gaap	Impaired Financing Receivable With No Related Allowance Recorded Investment ImpairedFinancingReceivableWithNoRelatedAllowanceRecordedInvestment	18738000	USD
CY2019Q2	us-gaap	Impaired Financing Receivable With Related Allowance Recorded Investment ImpairedFinancingReceivableWithRelatedAllowanceRecordedInvestment	6265000	USD
CY2019Q2	us-gaap	Impaired Financing Receivable Related Allowance ImpairedFinancingReceivableRelatedAllowance	297000	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
CY2019Q2	us-gaap	Impaired Financing Receivable Average Recorded Investment ImpairedFinancingReceivableAverageRecordedInvestment	27506000	USD
CY2019Q2	us-gaap	Impaired Financing Receivable Interest Income Accrual Method ImpairedFinancingReceivableInterestIncomeAccrualMethod	121000	USD
CY2018Q2	us-gaap	Impaired Financing Receivable Average Recorded Investment ImpairedFinancingReceivableAverageRecordedInvestment	30291000	USD
CY2018Q2	us-gaap	Impaired Financing Receivable Interest Income Accrual Method ImpairedFinancingReceivableInterestIncomeAccrualMethod	178000	USD
	us-gaap	Impaired Financing Receivable Average Recorded Investment ImpairedFinancingReceivableAverageRecordedInvestment	29502000	USD
	us-gaap	Impaired Financing Receivable Interest Income Accrual Method ImpairedFinancingReceivableInterestIncomeAccrualMethod	302000	USD
	us-gaap	Impaired Financing Receivable Average Recorded Investment ImpairedFinancingReceivableAverageRecordedInvestment	35298000	USD
	us-gaap	Impaired Financing Receivable Interest Income Accrual Method ImpairedFinancingReceivableInterestIncomeAccrualMethod	412000	USD
CY2019Q2	banr	Financing Receivable Modifications Accrual Status FinancingReceivableModificationsAccrualStatus	6594000	USD
CY2018Q4	banr	Financing Receivable Modifications Accrual Status FinancingReceivableModificationsAccrualStatus	13422000	USD
CY2019Q2	banr	Financing Receivable Modifications Nonaccrual Status FinancingReceivableModificationsNonaccrualStatus	1552000	USD
CY2019Q2	us-gaap	Financing Receivable Modifications Recorded Investment FinancingReceivableModificationsRecordedInvestment	8146000	USD
CY2019Q2	banr	Financing Receivable Modifications Commitments To Advance Funds FinancingReceivableModificationsCommitmentsToAdvanceFunds	49000	USD
CY2019Q2	us-gaap	Loans And Leases Receivable Gross Carrying Amount LoansAndLeasesReceivableGrossCarryingAmount	8746550000	USD
CY2018Q4	banr	Financing Receivable Modifications Nonaccrual Status FinancingReceivableModificationsNonaccrualStatus	317000	USD
CY2018Q4	us-gaap	Financing Receivable Modifications Recorded Investment FinancingReceivableModificationsRecordedInvestment	13739000	USD
CY2018Q4	banr	Financing Receivable Modifications Commitments To Advance Funds FinancingReceivableModificationsCommitmentsToAdvanceFunds	0	USD
	us-gaap	Financing Receivable Modifications Number Of Contracts2 FinancingReceivableModificationsNumberOfContracts2	0	contract
CY2019Q2	us-gaap	Financing Receivable Modifications Number Of Contracts2 FinancingReceivableModificationsNumberOfContracts2	2	contract
CY2019Q2	us-gaap	Financing Receivable Modifications Pre Modification Recorded Investment2 FinancingReceivableModificationsPreModificationRecordedInvestment2	756000	USD
CY2019Q2	us-gaap	Financing Receivable Modifications Post Modification Recorded Investment2 FinancingReceivableModificationsPostModificationRecordedInvestment2	756000	USD
	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
CY2019Q2	us-gaap	Loans And Leases Receivable Gross Carrying Amount LoansAndLeasesReceivableGrossCarryingAmount	8746550000	USD
CY2018Q4	us-gaap	Loans And Leases Receivable Gross Carrying Amount LoansAndLeasesReceivableGrossCarryingAmount	8684595000	USD
CY2019Q2	us-gaap	Financing Receivable Recorded Investment Past Due FinancingReceivableRecordedInvestmentPastDue	34419000	USD
CY2019Q2	us-gaap	Certain Loans Acquired In Transfer Not Accounted For As Debt Securities Carrying Amount Net CertainLoansAcquiredInTransferNotAccountedForAsDebtSecuritiesCarryingAmountNet	12945000	USD
CY2019Q2	us-gaap	Financing Receivable Recorded Investment Current FinancingReceivableRecordedInvestmentCurrent	8699186000	USD
CY2019Q2	us-gaap	Financing Receivable Recorded Investment90 Days Past Due And Still Accruing FinancingReceivableRecordedInvestment90DaysPastDueAndStillAccruing	1355000	USD
CY2019Q2	us-gaap	Financing Receivable Recorded Investment Nonaccrual Status FinancingReceivableRecordedInvestmentNonaccrualStatus	17054000	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
CY2019Q1	us-gaap	Loans And Leases Receivable Allowance LoansAndLeasesReceivableAllowance	97308000	USD
CY2019Q2	us-gaap	Provision For Loan And Lease Losses ProvisionForLoanAndLeaseLosses	2000000	USD
CY2019Q2	us-gaap	Financing Receivable Allowance For Credit Losses Recovery FinancingReceivableAllowanceForCreditLossesRecovery	882000	USD
CY2019Q2	us-gaap	Financing Receivable Allowance For Credit Losses Write Offs FinancingReceivableAllowanceForCreditLossesWriteOffs	1936000	USD
CY2019Q2	us-gaap	Loans And Leases Receivable Allowance LoansAndLeasesReceivableAllowance	98254000	USD
CY2018Q4	us-gaap	Loans And Leases Receivable Allowance LoansAndLeasesReceivableAllowance	96485000	USD
	us-gaap	Provision For Loan And Lease Losses ProvisionForLoanAndLeaseLosses	4000000	USD
	us-gaap	Financing Receivable Allowance For Credit Losses Recovery FinancingReceivableAllowanceForCreditLossesRecovery	1101000	USD
	us-gaap	Financing Receivable Allowance For Credit Losses Write Offs FinancingReceivableAllowanceForCreditLossesWriteOffs	3332000	USD
CY2019Q2	us-gaap	Loans And Leases Receivable Allowance LoansAndLeasesReceivableAllowance	98254000	USD
CY2019Q2	us-gaap	Financing Receivable Allowance For Credit Losses Individually Evaluated For Impairment1 FinancingReceivableAllowanceForCreditLossesIndividuallyEvaluatedForImpairment1	297000	USD
CY2019Q2	us-gaap	Financing Receivable Allowance For Credit Losses Collectively Evaluated For Impairment FinancingReceivableAllowanceForCreditLossesCollectivelyEvaluatedForImpairment	97877000	USD
CY2019Q2	us-gaap	Certain Loans Acquired In Transfer Not Accounted For As Debt Securities Allowance For Loan Losses CertainLoansAcquiredInTransferNotAccountedForAsDebtSecuritiesAllowanceForLoanLosses	80000	USD
CY2019Q2	us-gaap	Loans And Leases Receivable Allowance LoansAndLeasesReceivableAllowance	98254000	USD
CY2019Q2	us-gaap	Financing Receivable Individually Evaluated For Impairment FinancingReceivableIndividuallyEvaluatedForImpairment	14672000	USD
CY2019Q2	us-gaap	Financing Receivable Collectively Evaluated For Impairment FinancingReceivableCollectivelyEvaluatedForImpairment	8718933000	USD
CY2019Q2	us-gaap	Certain Loans Acquired In Transfer Not Accounted For As Debt Securities Carrying Amount Net CertainLoansAcquiredInTransferNotAccountedForAsDebtSecuritiesCarryingAmountNet	12945000	USD
CY2019Q2	us-gaap	Loans And Leases Receivable Gross Carrying Amount LoansAndLeasesReceivableGrossCarryingAmount	8746550000	USD
CY2018Q1	us-gaap	Loans And Leases Receivable Allowance LoansAndLeasesReceivableAllowance	92207000	USD
CY2018Q2	us-gaap	Provision For Loan And Lease Losses ProvisionForLoanAndLeaseLosses	2000000	USD
CY2018Q2	us-gaap	Financing Receivable Allowance For Credit Losses Recovery FinancingReceivableAllowanceForCreditLossesRecovery	830000	USD
CY2018Q2	us-gaap	Financing Receivable Allowance For Credit Losses Write Offs FinancingReceivableAllowanceForCreditLossesWriteOffs	1162000	USD
CY2018Q2	us-gaap	Loans And Leases Receivable Allowance LoansAndLeasesReceivableAllowance	93875000	USD
CY2017Q4	us-gaap	Loans And Leases Receivable Allowance LoansAndLeasesReceivableAllowance	89028000	USD
	us-gaap	Provision For Loan And Lease Losses ProvisionForLoanAndLeaseLosses	4000000	USD
	us-gaap	Financing Receivable Allowance For Credit Losses Recovery FinancingReceivableAllowanceForCreditLossesRecovery	2928000	USD
	us-gaap	Financing Receivable Allowance For Credit Losses Write Offs FinancingReceivableAllowanceForCreditLossesWriteOffs	2081000	USD
CY2018Q2	us-gaap	Loans And Leases Receivable Allowance LoansAndLeasesReceivableAllowance	93875000	USD
CY2018Q2	us-gaap	Financing Receivable Allowance For Credit Losses Individually Evaluated For Impairment1 FinancingReceivableAllowanceForCreditLossesIndividuallyEvaluatedForImpairment1	468000	USD
CY2018Q2	us-gaap	Financing Receivable Allowance For Credit Losses Collectively Evaluated For Impairment FinancingReceivableAllowanceForCreditLossesCollectivelyEvaluatedForImpairment	93314000	USD
CY2018Q2	us-gaap	Certain Loans Acquired In Transfer Not Accounted For As Debt Securities Allowance For Loan Losses CertainLoansAcquiredInTransferNotAccountedForAsDebtSecuritiesAllowanceForLoanLosses	93000	USD
CY2018Q2	us-gaap	Loans And Leases Receivable Allowance LoansAndLeasesReceivableAllowance	93875000	USD
CY2018Q2	us-gaap	Financing Receivable Individually Evaluated For Impairment FinancingReceivableIndividuallyEvaluatedForImpairment	18409000	USD
CY2018Q2	us-gaap	Financing Receivable Collectively Evaluated For Impairment FinancingReceivableCollectivelyEvaluatedForImpairment	7648260000	USD
CY2018Q2	us-gaap	Certain Loans Acquired In Transfer Not Accounted For As Debt Securities Carrying Amount Net CertainLoansAcquiredInTransferNotAccountedForAsDebtSecuritiesCarryingAmountNet	18063000	USD
CY2018Q2	us-gaap	Loans And Leases Receivable Gross Carrying Amount LoansAndLeasesReceivableGrossCarryingAmount	7684732000	USD
CY2019Q1	us-gaap	Real Estate Acquired Through Foreclosure RealEstateAcquiredThroughForeclosure	2611000	USD
CY2018Q1	us-gaap	Real Estate Acquired Through Foreclosure RealEstateAcquiredThroughForeclosure	328000	USD
CY2018Q4	us-gaap	Real Estate Acquired Through Foreclosure RealEstateAcquiredThroughForeclosure	2611000	USD
CY2017Q4	us-gaap	Real Estate Acquired Through Foreclosure RealEstateAcquiredThroughForeclosure	360000	USD
CY2019Q2	us-gaap	Real Estate Acquisitions Through Foreclosures RealEstateAcquisitionsThroughForeclosures	61000	USD
CY2018Q2	us-gaap	Real Estate Acquisitions Through Foreclosures RealEstateAcquisitionsThroughForeclosures	393000	USD
	us-gaap	Real Estate Acquisitions Through Foreclosures RealEstateAcquisitionsThroughForeclosures	61000	USD
	us-gaap	Real Estate Acquisitions Through Foreclosures RealEstateAcquisitionsThroughForeclosures	521000	USD
CY2019Q2	us-gaap	Proceeds From Sale Of Other Real Estate ProceedsFromSaleOfOtherRealEstate	150000	USD
CY2018Q2	us-gaap	Proceeds From Sale Of Other Real Estate ProceedsFromSaleOfOtherRealEstate	314000	USD
	us-gaap	Proceeds From Sale Of Other Real Estate ProceedsFromSaleOfOtherRealEstate	150000	USD
	us-gaap	Proceeds From Sale Of Other Real Estate ProceedsFromSaleOfOtherRealEstate	314000	USD
CY2019Q2	us-gaap	Gains Losses On Sales Of Other Real Estate GainsLossesOnSalesOfOtherRealEstate	9000	USD
CY2018Q2	us-gaap	Gains Losses On Sales Of Other Real Estate GainsLossesOnSalesOfOtherRealEstate	-66000	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	-66000	USD
CY2019Q2	us-gaap	Real Estate Owned Valuation Allowance Period Increase Decrease RealEstateOwnedValuationAllowancePeriodIncreaseDecrease	0	USD
CY2018Q2	us-gaap	Real Estate Owned Valuation Allowance Period Increase Decrease RealEstateOwnedValuationAllowancePeriodIncreaseDecrease	0	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	-160000	USD
CY2019Q2	us-gaap	Real Estate Acquired Through Foreclosure RealEstateAcquiredThroughForeclosure	2513000	USD
CY2018Q2	us-gaap	Real Estate Acquired Through Foreclosure RealEstateAcquiredThroughForeclosure	473000	USD
CY2019Q2	us-gaap	Real Estate Acquired Through Foreclosure RealEstateAcquiredThroughForeclosure	2513000	USD
CY2018Q2	us-gaap	Real Estate Acquired Through Foreclosure RealEstateAcquiredThroughForeclosure	473000	USD
CY2019Q2	us-gaap	Mortgage Loans In Process Of Foreclosure Amount MortgageLoansInProcessOfForeclosureAmount	1800000	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	4112000	USD
	us-gaap	Goodwill Purchase Accounting Adjustments GoodwillPurchaseAccountingAdjustments	217000	USD
CY2019Q2	us-gaap	Goodwill Goodwill	339154000	USD
CY2019Q2	us-gaap	Intangible Assets Net Including Goodwill IntangibleAssetsNetIncludingGoodwill	367749000	USD
CY2019Q2	us-gaap	Interest Bearing Domestic Deposit Brokered InterestBearingDomesticDepositBrokered	138395000	USD
CY2018Q4	us-gaap	Interest Bearing Domestic Deposit Brokered InterestBearingDomesticDepositBrokered	377347000	USD
CY2019Q2	banr	Business Combination Acquired Deposits Time Deposit Premium BusinessCombinationAcquiredDepositsTimeDepositPremium	384000	USD
CY2019Q2	banr	Servicing Assetat Amortized Cost Additions Acquisitions ServicingAssetatAmortizedCostAdditionsAcquisitions	22000	USD
CY2018Q2	banr	Servicing Assetat Amortized Cost Additions Acquisitions ServicingAssetatAmortizedCostAdditionsAcquisitions	30000	USD
	us-gaap	Servicing Asset At Amortized Value Additions ServicingAssetAtAmortizedValueAdditions	69000	USD
	us-gaap	Servicing Asset At Amortized Value Additions ServicingAssetAtAmortizedValueAdditions	45000	USD
CY2019Q2	us-gaap	Noninterest Bearing Deposit Liabilities Domestic NoninterestBearingDepositLiabilitiesDomestic	3671995000	USD
CY2018Q4	us-gaap	Noninterest Bearing Deposit Liabilities Domestic NoninterestBearingDepositLiabilitiesDomestic	3657817000	USD
CY2019Q2	us-gaap	Interest Bearing Domestic Deposit Checking InterestBearingDomesticDepositChecking	1187035000	USD
CY2018Q4	us-gaap	Interest Bearing Domestic Deposit Checking InterestBearingDomesticDepositChecking	1191016000	USD
CY2019Q2	us-gaap	Interest Bearing Domestic Deposit Savings InterestBearingDomesticDepositSavings	1848048000	USD
CY2018Q4	us-gaap	Interest Bearing Domestic Deposit Savings InterestBearingDomesticDepositSavings	1842581000	USD
CY2019Q2	us-gaap	Interest Bearing Domestic Deposit Money Market InterestBearingDomesticDepositMoneyMarket	1511119000	USD
CY2018Q4	us-gaap	Interest Bearing Domestic Deposit Money Market InterestBearingDomesticDepositMoneyMarket	1465369000	USD
CY2019Q2	banr	Deposits Domestic Transaction And Saving Accounts DepositsDomesticTransactionAndSavingAccounts	4546202000	USD
CY2018Q4	banr	Deposits Domestic Transaction And Saving Accounts DepositsDomesticTransactionAndSavingAccounts	4498966000	USD
CY2019Q2	banr	Time Deposits250000orless TimeDeposits250000orless	891312000	USD
CY2018Q4	banr	Time Deposits250000orless TimeDeposits250000orless	1143303000	USD
CY2019Q2	banr	Time Deposits Morethan250000 TimeDepositsMorethan250000	179458000	USD
CY2018Q4	banr	Time Deposits Morethan250000 TimeDepositsMorethan250000	176962000	USD
CY2019Q2	us-gaap	Interest Bearing Domestic Deposit Certificates Of Deposits InterestBearingDomesticDepositCertificatesOfDeposits	1070770000	USD
CY2018Q4	us-gaap	Interest Bearing Domestic Deposit Certificates Of Deposits InterestBearingDomesticDepositCertificatesOfDeposits	1320265000	USD
CY2019Q2	us-gaap	Deposits Domestic DepositsDomestic	9288967000	USD
CY2018Q4	us-gaap	Deposits Domestic DepositsDomestic	9477048000	USD
CY2019Q2	banr	Deposits Domestic Public Fund Transaction DepositsDomesticPublicFundTransaction	223610000	USD
CY2018Q4	banr	Deposits Domestic Public Fund Transaction DepositsDomesticPublicFundTransaction	217401000	USD
CY2019Q2	banr	Interest Bearing Domestic Deposit Public Fund Certificates InterestBearingDomesticDepositPublicFundCertificates	28656000	USD
CY2018Q4	banr	Interest Bearing Domestic Deposit Public Fund Certificates InterestBearingDomesticDepositPublicFundCertificates	30089000	USD
CY2019Q2	banr	Deposits Domestic Public Deposits DepositsDomesticPublicDeposits	252266000	USD
CY2018Q4	banr	Deposits Domestic Public Deposits DepositsDomesticPublicDeposits	247490000	USD
CY2018Q4	banr	Business Combination Acquired Deposits Time Deposit Premium BusinessCombinationAcquiredDepositsTimeDepositPremium	563000	USD
CY2019Q2	us-gaap	Time Deposits At Or Above Fdic Insurance Limit TimeDepositsAtOrAboveFDICInsuranceLimit	184500000	USD
CY2018Q4	us-gaap	Time Deposits At Or Above Fdic Insurance Limit TimeDepositsAtOrAboveFDICInsuranceLimit	180500000	USD
CY2019Q2	us-gaap	Time Deposit Maturities Year One TimeDepositMaturitiesYearOne	766901000	USD
CY2019Q2	us-gaap	Time Deposits Weighted Average Interest Rate Maturities Year One TimeDepositsWeightedAverageInterestRateMaturitiesYearOne	0.0114
CY2019Q2	us-gaap	Time Deposit Maturities Year Two TimeDepositMaturitiesYearTwo	196538000	USD
CY2019Q2	us-gaap	Time Deposits Weighted Average Interest Rate Maturities Year Two TimeDepositsWeightedAverageInterestRateMaturitiesYearTwo	0.0165
CY2019Q2	us-gaap	Time Deposit Maturities Year Three TimeDepositMaturitiesYearThree	81540000	USD
CY2019Q2	us-gaap	Time Deposits Weighted Average Interest Rate Maturities Year Three TimeDepositsWeightedAverageInterestRateMaturitiesYearThree	0.0187
CY2019Q2	us-gaap	Time Deposit Maturities Year Four TimeDepositMaturitiesYearFour	12620000	USD
CY2019Q2	us-gaap	Time Deposits Weighted Average Interest Rate Maturities Year Four TimeDepositsWeightedAverageInterestRateMaturitiesYearFour	0.0145
CY2019Q2	us-gaap	Time Deposit Maturities Year Five TimeDepositMaturitiesYearFive	10778000	USD
CY2019Q2	us-gaap	Time Deposits Weighted Average Interest Rate Maturities Year Five TimeDepositsWeightedAverageInterestRateMaturitiesYearFive	0.0224
CY2019Q2	us-gaap	Time Deposit Maturities After Year Five TimeDepositMaturitiesAfterYearFive	2393000	USD
CY2019Q2	us-gaap	Time Deposits Weighted Average Interest Rate Maturities Greater Than Five Years TimeDepositsWeightedAverageInterestRateMaturitiesGreaterThanFiveYears	0.0114
CY2019Q2	us-gaap	Interest Bearing Domestic Deposit Certificates Of Deposits InterestBearingDomesticDepositCertificatesOfDeposits	1070770000	USD
CY2019Q2	us-gaap	Weighted Average Rate Domestic Deposit Time Deposits WeightedAverageRateDomesticDepositTimeDeposits	0.0131
CY2019Q2	us-gaap	Amortization Method Qualified Affordable Housing Project Investments AmortizationMethodQualifiedAffordableHousingProjectInvestments	21359000	USD
CY2018Q4	us-gaap	Amortization Method Qualified Affordable Housing Project Investments AmortizationMethodQualifiedAffordableHousingProjectInvestments	17360000	USD
CY2019Q2	us-gaap	Qualified Affordable Housing Project Investments Commitment QualifiedAffordableHousingProjectInvestmentsCommitment	15700000	USD
CY2018Q4	us-gaap	Qualified Affordable Housing Project Investments Commitment QualifiedAffordableHousingProjectInvestmentsCommitment	12726000	USD
CY2019Q2	us-gaap	Affordable Housing Tax Credits And Other Tax Benefits Amount AffordableHousingTaxCreditsAndOtherTaxBenefitsAmount	494000	USD
CY2018Q2	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	988000	USD
	us-gaap	Affordable Housing Tax Credits And Other Tax Benefits Amount AffordableHousingTaxCreditsAndOtherTaxBenefitsAmount	728000	USD
CY2019Q2	us-gaap	Amortization Method Qualified Affordable Housing Project Investments Amortization AmortizationMethodQualifiedAffordableHousingProjectInvestmentsAmortization	405000	USD
CY2018Q2	us-gaap	Amortization Method Qualified Affordable Housing Project Investments Amortization AmortizationMethodQualifiedAffordableHousingProjectInvestmentsAmortization	288000	USD
	us-gaap	Amortization Method Qualified Affordable Housing Project Investments Amortization AmortizationMethodQualifiedAffordableHousingProjectInvestmentsAmortization	810000	USD
	us-gaap	Amortization Method Qualified Affordable Housing Project Investments Amortization AmortizationMethodQualifiedAffordableHousingProjectInvestmentsAmortization	575000	USD
CY2019Q2	us-gaap	Net Income Loss NetIncomeLoss	39700000	USD
CY2018Q2	us-gaap	Net Income Loss NetIncomeLoss	32424000	USD
	us-gaap	Net Income Loss NetIncomeLoss	73046000	USD
	us-gaap	Net Income Loss NetIncomeLoss	61214000	USD
CY2019Q2	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	34831047	shares
CY2018Q2	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	32250514	shares
	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	34940106	shares
	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	32323635	shares
CY2019Q2	us-gaap	Incremental Common Shares Attributable To Nonvested Shares With Forfeitable Dividends IncrementalCommonSharesAttributableToNonvestedSharesWithForfeitableDividends	51312	shares
CY2018Q2	us-gaap	Incremental Common Shares Attributable To Nonvested Shares With Forfeitable Dividends IncrementalCommonSharesAttributableToNonvestedSharesWithForfeitableDividends	81095	shares
	us-gaap	Incremental Common Shares Attributable To Nonvested Shares With Forfeitable Dividends IncrementalCommonSharesAttributableToNonvestedSharesWithForfeitableDividends	88775	shares
	us-gaap	Incremental Common Shares Attributable To Nonvested Shares With Forfeitable Dividends IncrementalCommonSharesAttributableToNonvestedSharesWithForfeitableDividends	98652	shares
CY2019Q2	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	34882359	shares
CY2018Q2	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	32331609	shares
	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	35028881	shares
	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	32422287	shares
CY2019Q2	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.14
CY2018Q2	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.01
	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	2.09
	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.89
CY2019Q2	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.14
CY2018Q2	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.00
	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	2.09
	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.89
CY2019Q2	banr	Reservefor Unfunded Loan Commitments ReserveforUnfundedLoanCommitments	2600000	USD
	banr	Mortgage Loan Applications Day Interest Rate Is Locked MortgageLoanApplicationsDayInterestRateIsLocked	P45D
CY2019Q2	us-gaap	Derivative Net Liability Position Aggregate Fair Value DerivativeNetLiabilityPositionAggregateFairValue	13600000	USD
CY2018Q4	us-gaap	Derivative Net Liability Position Aggregate Fair Value DerivativeNetLiabilityPositionAggregateFairValue	1300000	USD
CY2019Q2	us-gaap	Collateral Already Posted Aggregate Fair Value CollateralAlreadyPostedAggregateFairValue	20700000	USD
CY2018Q4	us-gaap	Collateral Already Posted Aggregate Fair Value CollateralAlreadyPostedAggregateFairValue	13600000	USD
CY2019Q2	us-gaap	Derivative Fair Value Of Derivative Asset DerivativeFairValueOfDerivativeAsset	13621000	USD
CY2019Q2	us-gaap	Derivative Asset Fair Value Gross Liability DerivativeAssetFairValueGrossLiability	17000	USD
CY2019Q2	us-gaap	Derivative Fair Value Of Derivative Asset Amount Not Offset Against Collateral DerivativeFairValueOfDerivativeAssetAmountNotOffsetAgainstCollateral	13604000	USD
CY2019Q2	us-gaap	Derivative Collateral Obligation To Return Securities DerivativeCollateralObligationToReturnSecurities	0	USD
CY2019Q2	us-gaap	Derivative Collateral Obligation To Return Cash DerivativeCollateralObligationToReturnCash	0	USD
CY2019Q2	us-gaap	Derivative Fair Value Of Derivative Asset Amount Offset Against Collateral DerivativeFairValueOfDerivativeAssetAmountOffsetAgainstCollateral	13604000	USD
CY2019Q2	us-gaap	Derivative Fair Value Of Derivative Liability DerivativeFairValueOfDerivativeLiability	13621000	USD
CY2019Q2	us-gaap	Derivative Liability Fair Value Gross Asset DerivativeLiabilityFairValueGrossAsset	2554000	USD
CY2019Q2	us-gaap	Derivative Fair Value Of Derivative Liability Amount Not Offset Against Collateral DerivativeFairValueOfDerivativeLiabilityAmountNotOffsetAgainstCollateral	11067000	USD
CY2019Q2	us-gaap	Derivative Collateral Right To Reclaim Securities DerivativeCollateralRightToReclaimSecurities	0	USD
CY2019Q2	us-gaap	Derivative Collateral Right To Reclaim Cash DerivativeCollateralRightToReclaimCash	10919000	USD
CY2019Q2	us-gaap	Derivative Fair Value Of Derivative Liability Amount Offset Against Collateral DerivativeFairValueOfDerivativeLiabilityAmountOffsetAgainstCollateral	148000	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
CY2019Q2	banr	Debit And Credit Card Interchange Fees DebitAndCreditCardInterchangeFees	9272000	USD
CY2018Q2	banr	Debit And Credit Card Interchange Fees DebitAndCreditCardInterchangeFees	7872000	USD
	banr	Debit And Credit Card Interchange Fees DebitAndCreditCardInterchangeFees	17203000	USD
	banr	Debit And Credit Card Interchange Fees DebitAndCreditCardInterchangeFees	15191000	USD
CY2019Q2	banr	Debitand Credit Card Expense DebitandCreditCardExpense	-1949000	USD
CY2018Q2	banr	Debitand Credit Card Expense DebitandCreditCardExpense	-1933000	USD
	banr	Debitand Credit Card Expense DebitandCreditCardExpense	-4398000	USD
	banr	Debitand Credit Card Expense DebitandCreditCardExpense	-3903000	USD
CY2019Q2	banr	Merchant Services Expenses MerchantServicesExpenses	-2661000	USD
CY2018Q2	banr	Merchant Services Expenses MerchantServicesExpenses	-1924000	USD
	banr	Merchant Services Expenses MerchantServicesExpenses	-4981000	USD
	banr	Merchant Services Expenses MerchantServicesExpenses	-3729000	USD
CY2019Q2	banr	Other Service Charges OtherServiceCharges	1210000	USD
CY2018Q2	banr	Other Service Charges OtherServiceCharges	929000	USD
	banr	Other Service Charges OtherServiceCharges	3223000	USD
	banr	Other Service Charges OtherServiceCharges	2100000	USD
CY2019Q2	banr	Total Deposit Feesand Other Service Charges TotalDepositFeesandOtherServiceCharges	14046000	USD
CY2018Q2	banr	Total Deposit Feesand Other Service Charges TotalDepositFeesandOtherServiceCharges	11985000	USD
	banr	Total Deposit Feesand Other Service Charges TotalDepositFeesandOtherServiceCharges	26664000	USD
	banr	Total Deposit Feesand Other Service Charges TotalDepositFeesandOtherServiceCharges	23281000	USD
	banr	Operating Lease Number Of Buildings And Offices Under Lease OperatingLeaseNumberOfBuildingsAndOfficesUnderLease	106	office
CY2019Q2	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	54515000	USD
CY2019Q2	us-gaap	Operating Lease Liability OperatingLeaseLiability	57638000	USD
CY2019Q2	us-gaap	Operating Lease Weighted Average Remaining Lease Term1 OperatingLeaseWeightedAverageRemainingLeaseTerm1	P5Y9M18D
CY2019Q2	us-gaap	Operating Lease Weighted Average Discount Rate Percent OperatingLeaseWeightedAverageDiscountRatePercent	0.0424
CY2019Q2	us-gaap	Operating Lease Cost OperatingLeaseCost	3858000	USD
	us-gaap	Operating Lease Cost OperatingLeaseCost	7832000	USD
CY2019Q2	us-gaap	Short Term Lease Cost ShortTermLeaseCost	99000	USD
	us-gaap	Short Term Lease Cost ShortTermLeaseCost	222000	USD
CY2019Q2	us-gaap	Variable Lease Cost VariableLeaseCost	567000	USD
	us-gaap	Variable Lease Cost VariableLeaseCost	1128000	USD
CY2019Q2	us-gaap	Sublease Income SubleaseIncome	231000	USD
	us-gaap	Sublease Income SubleaseIncome	468000	USD
CY2019Q2	us-gaap	Lease Cost LeaseCost	4293000	USD
	us-gaap	Lease Cost LeaseCost	8714000	USD
CY2019Q2	us-gaap	Operating Lease Payments OperatingLeasePayments	3800000	USD
	us-gaap	Operating Lease Payments OperatingLeasePayments	7700000	USD
CY2019Q2	us-gaap	Right Of Use Asset Obtained In Exchange For Operating Lease Liability RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability	2900000	USD
	us-gaap	Right Of Use Asset Obtained In Exchange For Operating Lease Liability RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability	64100000	USD
CY2019Q2	us-gaap	Lessee Operating Lease Liability Payments Remainder Of Fiscal Year LesseeOperatingLeaseLiabilityPaymentsRemainderOfFiscalYear	7514000	USD
CY2019Q2	us-gaap	Lessee Operating Lease Liability Payments Due Year Two LesseeOperatingLeaseLiabilityPaymentsDueYearTwo	14330000	USD
CY2019Q2	us-gaap	Lessee Operating Lease Liability Payments Due Year Three LesseeOperatingLeaseLiabilityPaymentsDueYearThree	12611000	USD
CY2019Q2	us-gaap	Lessee Operating Lease Liability Payments Due Year Four LesseeOperatingLeaseLiabilityPaymentsDueYearFour	9083000	USD
CY2019Q2	us-gaap	Lessee Operating Lease Liability Payments Due Year Five LesseeOperatingLeaseLiabilityPaymentsDueYearFive	6011000	USD
CY2019Q2	us-gaap	Lessee Operating Lease Liability Payments Due After Year Five LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive	15659000	USD
CY2019Q2	us-gaap	Lessee Operating Lease Liability Payments Due LesseeOperatingLeaseLiabilityPaymentsDue	65208000	USD
CY2019Q2	us-gaap	Lessee Operating Lease Liability Undiscounted Excess Amount LesseeOperatingLeaseLiabilityUndiscountedExcessAmount	7570000	USD
CY2019Q2	us-gaap	Operating Lease Liability OperatingLeaseLiability	57638000	USD
	banr	Lessee Operating Lease Not Yet Commenced LesseeOperatingLeaseNotYetCommenced	2800000	USD
CY2019Q2	us-gaap	Lessee Operating Lease Lease Not Yet Commenced Term Of Contract1 LesseeOperatingLeaseLeaseNotYetCommencedTermOfContract1	P20Y

Files In Submission

Name	View Source	Status
0000946673-19-000018-index-headers.html	Edgar Link	pending
0000946673-19-000018-index.html	Edgar Link	pending
0000946673-19-000018.txt	Edgar Link	pending
0000946673-19-000018-xbrl.zip	Edgar Link	pending
banr-20190630.xsd	Edgar Link	pending
banr-20190630_cal.xml	Edgar Link	unprocessable
banr-20190630_def.xml	Edgar Link	unprocessable
banr-20190630_lab.xml	Edgar Link	unprocessable
banr-20190630_pre.xml	Edgar Link	unprocessable
banr-6302019x10q.htm	Edgar Link	pending
banr-6302019x10q_htm.xml	Edgar Link	completed
banr-6302019xex311.htm	Edgar Link	pending
banr-6302019xex312.htm	Edgar Link	pending
banr-6302019xex32.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
R10.htm	Edgar Link	pending
R11.htm	Edgar Link	pending
R12.htm	Edgar Link	pending
R13.htm	Edgar Link	pending
R14.htm	Edgar Link	pending
R15.htm	Edgar Link	pending
R16.htm	Edgar Link	pending
R17.htm	Edgar Link	pending
R18.htm	Edgar Link	pending
R19.htm	Edgar Link	pending
R2.htm	Edgar Link	pending
R20.htm	Edgar Link	pending
R21.htm	Edgar Link	pending
R22.htm	Edgar Link	pending
R23.htm	Edgar Link	pending
R24.htm	Edgar Link	pending
R25.htm	Edgar Link	pending
R26.htm	Edgar Link	pending
R27.htm	Edgar Link	pending
R28.htm	Edgar Link	pending
R29.htm	Edgar Link	pending
R3.htm	Edgar Link	pending
R30.htm	Edgar Link	pending
R31.htm	Edgar Link	pending
R32.htm	Edgar Link	pending
R33.htm	Edgar Link	pending
R34.htm	Edgar Link	pending
R35.htm	Edgar Link	pending
R36.htm	Edgar Link	pending
R37.htm	Edgar Link	pending
R38.htm	Edgar Link	pending
R39.htm	Edgar Link	pending
R4.htm	Edgar Link	pending
R40.htm	Edgar Link	pending
R41.htm	Edgar Link	pending
R42.htm	Edgar Link	pending
R43.htm	Edgar Link	pending
R44.htm	Edgar Link	pending
R45.htm	Edgar Link	pending
R46.htm	Edgar Link	pending
R47.htm	Edgar Link	pending
R48.htm	Edgar Link	pending
R49.htm	Edgar Link	pending
R5.htm	Edgar Link	pending
R50.htm	Edgar Link	pending
R51.htm	Edgar Link	pending
R52.htm	Edgar Link	pending
R53.htm	Edgar Link	pending
R54.htm	Edgar Link	pending
R55.htm	Edgar Link	pending
R56.htm	Edgar Link	pending
R57.htm	Edgar Link	pending
R58.htm	Edgar Link	pending
R59.htm	Edgar Link	pending
R6.htm	Edgar Link	pending
R60.htm	Edgar Link	pending
R61.htm	Edgar Link	pending
R62.htm	Edgar Link	pending
R63.htm	Edgar Link	pending
R64.htm	Edgar Link	pending
R65.htm	Edgar Link	pending
R66.htm	Edgar Link	pending
R67.htm	Edgar Link	pending
R68.htm	Edgar Link	pending
R69.htm	Edgar Link	pending
R7.htm	Edgar Link	pending
R70.htm	Edgar Link	pending
R71.htm	Edgar Link	pending
R72.htm	Edgar Link	pending
R73.htm	Edgar Link	pending
R74.htm	Edgar Link	pending
R75.htm	Edgar Link	pending
R76.htm	Edgar Link	pending
R77.htm	Edgar Link	pending
R78.htm	Edgar Link	pending
R79.htm	Edgar Link	pending
R8.htm	Edgar Link	pending
R80.htm	Edgar Link	pending
R9.htm	Edgar Link	pending
report.css	Edgar Link	pending
Show.js	Edgar Link	pending

Create your account

Find Stocks Worth Researching

Deeply Understand Businesses

Value Businesses Intelligently

$BANR
BANNER CORP Stock $banr

2019 Q2 Form 10-Q Financial Statement

#000094667319000018 Filed on August 02, 2019

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$BANR BANNER CORP Stock $banr

2019 Q2 Form 10-Q Financial Statement

#000094667319000018 Filed on August 02, 2019

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$BANR
BANNER CORP Stock $banr