$HFWA
HERITAGE FINANCIAL CORP /WA/ Stock $hfwa

$hfwa Overview Financials Valuation SEC Filings Company Website

2018 Q4 Form 10-K Financial Statement

#000104602520000037 Filed on February 28, 2020

Income Statement

Concept	2018 Q4	2018 Q3	2018 Q2
Revenue	$54.88M	$54.61M	$46.67M
YoY Change	38.79%	46.49%	29.49%
Cost Of Revenue
YoY Change
Gross Profit
YoY Change
Gross Profit Margin
Selling, General & Admin
YoY Change
% of Gross Profit
Research & Development		$2.343M	$2.507M
YoY Change		12.11%	25.22%
% of Gross Profit
Depreciation & Amortization	$3.380M	$3.520M	$3.300M
YoY Change	16.55%	18.12%	10.74%
% of Gross Profit
Operating Expenses		$2.343M	$2.507M
YoY Change		12.11%	25.22%
Operating Profit
YoY Change
Interest Expense	$3.595M	$3.480M	$2.928M
YoY Change	50.48%	49.16%	53.54%
% of Operating Profit
Other Income/Expense, Net
YoY Change
Pretax Income	$21.30M	$18.65M	$13.86M
YoY Change	23.17%	28.21%	-12.85%
Income Tax	$4.690M	$3.146M	$2.003M
% Of Pretax Income	22.02%	16.87%	14.45%
Net Earnings	$16.61M	$15.50M	$11.86M
YoY Change	65.71%	45.93%	0.25%
Net Earnings / Revenue	30.26%	28.39%	25.41%
Basic Earnings Per Share	$0.45	$0.42	$0.35
Diluted Earnings Per Share	$0.45	$0.42	$0.35
COMMON SHARES
Basic Shares Outstanding	36.87M shares	36.77M shares	33.93M shares
Diluted Shares Outstanding		36.96M shares	34.11M shares

Balance Sheet

Concept	2018 Q4	2018 Q3	2018 Q2
SHORT-TERM ASSETS
Cash & Short-Term Investments
YoY Change
Cash & Equivalents	$161.9M	$170.1M	$129.9M
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	$81.10M	$80.44M	$75.36M
YoY Change	34.44%	33.05%	24.36%
Goodwill	$240.9M	$240.8M	$187.5M
YoY Change	102.42%	102.33%	57.57%
Intangibles	$20.61M	$21.73M	$15.77M
YoY Change	238.6%	239.08%	134.38%
Long-Term Investments
YoY Change
Other Assets
YoY Change
Total Long-Term Assets
YoY Change
TOTAL ASSETS
Total Short-Term Assets
Total Long-Term Assets
Total Assets	$5.317B	$5.276B	$4.789B
YoY Change	29.26%	30.28%	20.01%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable
YoY Change
Accrued Expenses	$72.00M	$79.50M	$63.20M
YoY Change	6.51%	42.99%	32.77%
Deferred Revenue
YoY Change
Short-Term Debt	$31.50M	$32.20M	$22.20M
YoY Change	-0.94%	12.2%	4.23%
Long-Term Debt Due
YoY Change
Total Short-Term Liabilities	$72.00M	$79.50M	$63.20M
YoY Change	6.51%	42.99%	32.77%
LONG-TERM LIABILITIES
Long-Term Debt	$20.30M	$20.20M	$20.20M
YoY Change	1.5%	1.51%	1.51%
Other Long-Term Liabilities
YoY Change
Total Long-Term Liabilities	$20.30M	$20.20M	$20.20M
YoY Change	1.5%	1.51%	1.51%
TOTAL LIABILITIES
Total Short-Term Liabilities	$72.00M	$79.50M	$63.20M
Total Long-Term Liabilities	$20.30M	$20.20M	$20.20M
Total Liabilities	$4.556B	$4.530B	$4.150B
YoY Change	26.39%	27.88%	18.88%
SHAREHOLDERS EQUITY
Retained Earnings	$176.4M	$169.8M	$159.8M
YoY Change	18.36%	16.53%	15.0%
Common Stock	$591.8M	$591.1M	$491.0M
YoY Change	64.12%	64.13%	36.57%
Preferred Stock
YoY Change
Treasury Stock (at cost)
YoY Change
Treasury Stock Shares
Shareholders Equity	$760.7M	$746.1M	$639.5M
YoY Change
Total Liabilities & Shareholders Equity	$5.317B	$5.276B	$4.789B
YoY Change	29.26%	30.28%	20.01%

Cashflow Statement

Concept	2018 Q4	2018 Q3	2018 Q2
OPERATING ACTIVITIES
Net Income	$16.61M	$15.50M	$11.86M
YoY Change	65.71%	45.93%	0.25%
Depreciation, Depletion And Amortization	$3.380M	$3.520M	$3.300M
YoY Change	16.55%	18.12%	10.74%
Cash From Operating Activities	$27.02M	$25.69M	$20.60M
YoY Change	37.02%	162.68%	-8.61%
INVESTING ACTIVITIES
Capital Expenditures	-$1.800M	-$4.810M	-$14.51M
YoY Change	114.29%	472.62%	2637.74%
Acquisitions
YoY Change
Other Investing Activities	-$57.00M	-$3.770M	-$106.2M
YoY Change	-19.33%	-93.87%	18.28%
Cash From Investing Activities	-$58.80M	-$8.570M	-$120.7M
YoY Change	-17.76%	-86.26%	33.66%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net
YoY Change
Debt Paid & Issued, Net
YoY Change
Cash From Financing Activities	23.54M	23.09M	99.71M
YoY Change	-45.92%	-41.74%	13.82%
NET CHANGE
Cash From Operating Activities	27.02M	25.69M	20.60M
Cash From Investing Activities	-58.80M	-8.570M	-120.7M
Cash From Financing Activities	23.54M	23.09M	99.71M
Net Change In Cash	-8.240M	40.21M	-360.0K
YoY Change	-0.12%	-410.02%	-101.81%
FREE CASH FLOW
Cash From Operating Activities	$27.02M	$25.69M	$20.60M
Capital Expenditures	-$1.800M	-$4.810M	-$14.51M
Free Cash Flow	$28.82M	$30.50M	$35.11M
YoY Change	40.18%	187.19%	52.19%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value	Unit
CY2019	dei	Amendment Flag AmendmentFlag	false
CY2019	dei	Current Fiscal Year End Date CurrentFiscalYearEndDate	--12-31
CY2019	dei	Document Fiscal Period Focus DocumentFiscalPeriodFocus	FY
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CY2019	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2019
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CY2018Q4	hfwa	Concentration Risk Percentage Greater Than Ten Percent ConcentrationRiskPercentageGreaterThanTenPercent	0
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CY2019	dei	Entity File Number EntityFileNumber	000-29480
CY2019	dei	Entity Registrant Name EntityRegistrantName	HERITAGE FINANCIAL CORP
CY2019	dei	Entity Incorporation State Country Code EntityIncorporationStateCountryCode	WA
CY2019	dei	Entity Tax Identification Number EntityTaxIdentificationNumber	91-1857900
CY2019	dei	Entity Address Address Line1 EntityAddressAddressLine1	201 Fifth Avenue SW,
CY2019	dei	Entity Address City Or Town EntityAddressCityOrTown	Olympia
CY2019	dei	Entity Address State Or Province EntityAddressStateOrProvince	WA
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CY2019	dei	Security12b Title Security12bTitle	Common Stock
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CY2019	dei	Security Exchange Name SecurityExchangeName	NASDAQ
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CY2017	us-gaap	Occupancy Net OccupancyNet	15396000	USD
CY2019	us-gaap	Communications And Information Technology CommunicationsAndInformationTechnology	8976000	USD
CY2018	us-gaap	Communications And Information Technology CommunicationsAndInformationTechnology	9888000	USD
CY2017	us-gaap	Communications And Information Technology CommunicationsAndInformationTechnology	8176000	USD
CY2019	us-gaap	Marketing Expense MarketingExpense	3481000	USD
CY2018	us-gaap	Marketing Expense MarketingExpense	3228000	USD
CY2017	us-gaap	Marketing Expense MarketingExpense	2943000	USD
CY2019	us-gaap	Professional Fees ProfessionalFees	5192000	USD
CY2018	us-gaap	Professional Fees ProfessionalFees	9670000	USD
CY2017	us-gaap	Professional Fees ProfessionalFees	4777000	USD
CY2019	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	3754000	USD
CY2018	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	3002000	USD
CY2017	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	2461000	USD
CY2019	us-gaap	Federal Deposit Insurance Corporation Premium Expense FederalDepositInsuranceCorporationPremiumExpense	725000	USD
CY2018	us-gaap	Federal Deposit Insurance Corporation Premium Expense FederalDepositInsuranceCorporationPremiumExpense	1480000	USD
CY2017	us-gaap	Federal Deposit Insurance Corporation Premium Expense FederalDepositInsuranceCorporationPremiumExpense	1435000	USD
CY2019	hfwa	Foreclosed Real Estate Income Expense ForeclosedRealEstateIncomeExpense	-352000	USD
CY2018	hfwa	Foreclosed Real Estate Income Expense ForeclosedRealEstateIncomeExpense	-106000	USD
CY2017	hfwa	Foreclosed Real Estate Income Expense ForeclosedRealEstateIncomeExpense	70000	USD
CY2019	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	4001000	USD
CY2018	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	3819000	USD
CY2018	us-gaap	Net Income Loss NetIncomeLoss	53057000	USD
CY2017	us-gaap	Net Income Loss NetIncomeLoss	41791000	USD
CY2017	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	1286000	USD
CY2019	us-gaap	Other Noninterest Expense OtherNoninterestExpense	11049000	USD
CY2018	us-gaap	Other Noninterest Expense OtherNoninterestExpense	11385000	USD
CY2017	us-gaap	Other Noninterest Expense OtherNoninterestExpense	9903000	USD
CY2019	us-gaap	Noninterest Expense NoninterestExpense	146788000	USD
CY2018	us-gaap	Noninterest Expense NoninterestExpense	149187000	USD
CY2017	us-gaap	Noninterest Expense NoninterestExpense	110575000	USD
CY2019	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	81045000	USD
CY2018	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	64295000	USD
CY2017	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	60147000	USD
CY2019	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	13488000	USD
CY2018	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	11238000	USD
CY2017	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	18356000	USD
CY2019	us-gaap	Net Income Loss NetIncomeLoss	67557000	USD
CY2018	us-gaap	Net Income Loss NetIncomeLoss	53057000	USD
CY2017	us-gaap	Net Income Loss NetIncomeLoss	41791000	USD
CY2019	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.84
CY2018	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.49
CY2017	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.39
CY2019	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.83
CY2018	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.49
CY2017	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.39
CY2019	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.84
CY2018	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.72
CY2017	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.61
CY2019	us-gaap	Net Income Loss NetIncomeLoss	67557000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	17833000	USD
CY2018	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-6064000	USD
CY2017	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	1526000	USD
CY2019	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	85390000	USD
CY2018	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	46993000	USD
CY2017	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	43317000	USD
CY2018Q4	us-gaap	Stockholders Equity StockholdersEquity	760723000	USD
CY2019Q1	us-gaap	Cumulative Effect Of New Accounting Principle In Period Of Adoption CumulativeEffectOfNewAccountingPrincipleInPeriodOfAdoption	-399000	USD
CY2019	us-gaap	Stock Issued During Period Value Restricted Stock Award Forfeitures StockIssuedDuringPeriodValueRestrictedStockAwardForfeitures	0	USD
CY2019	us-gaap	Stock Issued During Period Value Stock Options Exercised StockIssuedDuringPeriodValueStockOptionsExercised	58000	USD
CY2019	us-gaap	Adjustments To Additional Paid In Capital Share Based Compensation Restricted Stock Units Requisite Service Period Recognition AdjustmentsToAdditionalPaidInCapitalShareBasedCompensationRestrictedStockUnitsRequisiteServicePeriodRecognition	3231000	USD
CY2019	us-gaap	Stock Repurchased And Retired During Period Value StockRepurchasedAndRetiredDuringPeriodValue	8636000	USD
CY2019	us-gaap	Net Income Loss NetIncomeLoss	67557000	USD
CY2019	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	31056000	USD
CY2019Q4	us-gaap	Stockholders Equity StockholdersEquity	809311000	USD
CY2017Q4	us-gaap	Stockholders Equity StockholdersEquity	508305000	USD
CY2018Q1	us-gaap	Cumulative Effect Of New Accounting Principle In Period Of Adoption CumulativeEffectOfNewAccountingPrincipleInPeriodOfAdoption	0	USD
CY2019	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	17833000	USD
CY2018	us-gaap	Stock Issued During Period Value Restricted Stock Award Forfeitures StockIssuedDuringPeriodValueRestrictedStockAwardForfeitures	0	USD
CY2018	us-gaap	Stock Issued During Period Value Stock Options Exercised StockIssuedDuringPeriodValueStockOptionsExercised	133000	USD
CY2018	us-gaap	Adjustments To Additional Paid In Capital Share Based Compensation Restricted Stock Units Requisite Service Period Recognition AdjustmentsToAdditionalPaidInCapitalShareBasedCompensationRestrictedStockUnitsRequisiteServicePeriodRecognition	2744000	USD
CY2018	us-gaap	Stock Repurchased And Retired During Period Value StockRepurchasedAndRetiredDuringPeriodValue	1704000	USD
CY2018	us-gaap	Net Income Loss NetIncomeLoss	53057000	USD
CY2018	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-6064000	USD
CY2018	us-gaap	Stock Issued During Period Value Acquisitions StockIssuedDuringPeriodValueAcquisitions	230043000	USD
CY2018	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	25791000	USD
CY2018Q4	us-gaap	Stockholders Equity StockholdersEquity	760723000	USD
CY2016Q4	us-gaap	Stockholders Equity StockholdersEquity	481763000	USD
CY2017Q1	us-gaap	Cumulative Effect Of New Accounting Principle In Period Of Adoption CumulativeEffectOfNewAccountingPrincipleInPeriodOfAdoption	0	USD
CY2017	us-gaap	Stock Issued During Period Value Restricted Stock Award Forfeitures StockIssuedDuringPeriodValueRestrictedStockAwardForfeitures	0	USD
CY2017	us-gaap	Stock Issued During Period Value Stock Options Exercised StockIssuedDuringPeriodValueStockOptionsExercised	164000	USD
CY2017	us-gaap	Adjustments To Additional Paid In Capital Share Based Compensation Restricted Stock Units Requisite Service Period Recognition AdjustmentsToAdditionalPaidInCapitalShareBasedCompensationRestrictedStockUnitsRequisiteServicePeriodRecognition	2103000	USD
CY2017	us-gaap	Stock Repurchased And Retired During Period Value StockRepurchasedAndRetiredDuringPeriodValue	737000	USD
CY2017	us-gaap	Net Income Loss NetIncomeLoss	41791000	USD
CY2017	us-gaap	Net Income Loss NetIncomeLoss	41791000	USD
CY2017	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	1526000	USD
CY2017	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	18305000	USD
CY2017Q4	us-gaap	Stockholders Equity StockholdersEquity	508305000	USD
CY2019	us-gaap	Net Income Loss NetIncomeLoss	67557000	USD
CY2018	us-gaap	Net Income Loss NetIncomeLoss	53057000	USD
CY2017	us-gaap	Net Income Loss NetIncomeLoss	41791000	USD
CY2019	us-gaap	Depreciation Amortization And Accretion Net DepreciationAmortizationAndAccretionNet	8169000	USD
CY2018	us-gaap	Depreciation Amortization And Accretion Net DepreciationAmortizationAndAccretionNet	9808000	USD
CY2017	us-gaap	Depreciation Amortization And Accretion Net DepreciationAmortizationAndAccretionNet	10704000	USD
CY2019	us-gaap	Amortization Of Deferred Loan Origination Fees Net AmortizationOfDeferredLoanOriginationFeesNet	-1068000	USD
CY2018	us-gaap	Amortization Of Deferred Loan Origination Fees Net AmortizationOfDeferredLoanOriginationFeesNet	150000	USD
CY2017	us-gaap	Amortization Of Deferred Loan Origination Fees Net AmortizationOfDeferredLoanOriginationFeesNet	1007000	USD
CY2019	us-gaap	Provision For Loan And Lease Losses ProvisionForLoanAndLeaseLosses	4311000	USD
CY2018	us-gaap	Provision For Loan And Lease Losses ProvisionForLoanAndLeaseLosses	5129000	USD
CY2017	us-gaap	Provision For Loan And Lease Losses ProvisionForLoanAndLeaseLosses	4220000	USD
CY2019	hfwa	Net Change In Accrued Interest Receivable Prepaid Expenses And Other Assets Accrued Expenses And Other Liabilities NetChangeInAccruedInterestReceivablePrepaidExpensesAndOtherAssetsAccruedExpensesAndOtherLiabilities	5748000	USD
CY2018	hfwa	Net Change In Accrued Interest Receivable Prepaid Expenses And Other Assets Accrued Expenses And Other Liabilities NetChangeInAccruedInterestReceivablePrepaidExpensesAndOtherAssetsAccruedExpensesAndOtherLiabilities	10195000	USD
CY2017	hfwa	Net Change In Accrued Interest Receivable Prepaid Expenses And Other Assets Accrued Expenses And Other Liabilities NetChangeInAccruedInterestReceivablePrepaidExpensesAndOtherAssetsAccruedExpensesAndOtherLiabilities	11634000	USD
CY2019	us-gaap	Employee Benefits And Share Based Compensation EmployeeBenefitsAndShareBasedCompensation	3231000	USD
CY2018	us-gaap	Employee Benefits And Share Based Compensation EmployeeBenefitsAndShareBasedCompensation	2744000	USD
CY2017	us-gaap	Employee Benefits And Share Based Compensation EmployeeBenefitsAndShareBasedCompensation	2103000	USD
CY2019	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	4001000	USD
CY2018	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	3819000	USD
CY2017	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	1286000	USD
CY2019	us-gaap	Payments For Origination And Purchases Of Loans Held For Sale PaymentsForOriginationAndPurchasesOfLoansHeldForSale	72216000	USD
CY2019	us-gaap	Other Real Estate Valuation Adjustments OtherRealEstateValuationAdjustments	-51000	USD
CY2018	us-gaap	Gain Loss On Sale Of Property Plant Equipment GainLossOnSaleOfPropertyPlantEquipment	-32000	USD
CY2017	us-gaap	Gain Loss On Sale Of Property Plant Equipment GainLossOnSaleOfPropertyPlantEquipment	-13000	USD
CY2019	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	87614000	USD
CY2018	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	82447000	USD
CY2018	us-gaap	Payments For Origination And Purchases Of Loans Held For Sale PaymentsForOriginationAndPurchasesOfLoansHeldForSale	76101000	USD
CY2017	us-gaap	Payments For Origination And Purchases Of Loans Held For Sale PaymentsForOriginationAndPurchasesOfLoansHeldForSale	108696000	USD
CY2019	us-gaap	Proceeds From Sale Of Loans Held For Sale ProceedsFromSaleOfLoansHeldForSale	70397000	USD
CY2018	us-gaap	Proceeds From Sale Of Loans Held For Sale ProceedsFromSaleOfLoansHeldForSale	79237000	USD
CY2017	us-gaap	Proceeds From Sale Of Loans Held For Sale ProceedsFromSaleOfLoansHeldForSale	121482000	USD
CY2019	us-gaap	Bank Owned Life Insurance Income BankOwnedLifeInsuranceIncome	2151000	USD
CY2018	us-gaap	Bank Owned Life Insurance Income BankOwnedLifeInsuranceIncome	1753000	USD
CY2017	us-gaap	Bank Owned Life Insurance Income BankOwnedLifeInsuranceIncome	1424000	USD
CY2018	us-gaap	Other Real Estate Valuation Adjustments OtherRealEstateValuationAdjustments	-49000	USD
CY2017	us-gaap	Other Real Estate Valuation Adjustments OtherRealEstateValuationAdjustments	0	USD
CY2019	us-gaap	Gains Losses On Sales Of Other Real Estate GainsLossesOnSalesOfOtherRealEstate	-227000	USD
CY2018	us-gaap	Gains Losses On Sales Of Other Real Estate GainsLossesOnSalesOfOtherRealEstate	0	USD
CY2017	us-gaap	Gains Losses On Sales Of Other Real Estate GainsLossesOnSalesOfOtherRealEstate	144000	USD
CY2019	us-gaap	Gain Loss On Sale Of Loans And Leases GainLossOnSaleOfLoansAndLeases	2424000	USD
CY2018	us-gaap	Gain Loss On Sale Of Loans And Leases GainLossOnSaleOfLoansAndLeases	2759000	USD
CY2017	us-gaap	Gain Loss On Sale Of Loans And Leases GainLossOnSaleOfLoansAndLeases	7696000	USD
CY2019	us-gaap	Gain Loss On Sale Of Investments GainLossOnSaleOfInvestments	330000	USD
CY2018	us-gaap	Gain Loss On Sale Of Investments GainLossOnSaleOfInvestments	137000	USD
CY2017	us-gaap	Gain Loss On Sale Of Investments GainLossOnSaleOfInvestments	6000	USD
CY2019	hfwa	Gain Lossof Assets Heldfor Sale GainLossofAssetsHeldforSale	169000	USD
CY2018	hfwa	Gain Lossof Assets Heldfor Sale GainLossofAssetsHeldforSale	798000	USD
CY2017	hfwa	Gain Lossof Assets Heldfor Sale GainLossofAssetsHeldforSale	747000	USD
CY2019	us-gaap	Asset Impairment Charges AssetImpairmentCharges	102000	USD
CY2018	us-gaap	Asset Impairment Charges AssetImpairmentCharges	75000	USD
CY2017	us-gaap	Asset Impairment Charges AssetImpairmentCharges	0	USD
CY2019	us-gaap	Impairment Of Long Lived Assets To Be Disposed Of ImpairmentOfLongLivedAssetsToBeDisposedOf	117000	USD
CY2018	us-gaap	Impairment Of Long Lived Assets To Be Disposed Of ImpairmentOfLongLivedAssetsToBeDisposedOf	0	USD
CY2017	us-gaap	Impairment Of Long Lived Assets To Be Disposed Of ImpairmentOfLongLivedAssetsToBeDisposedOf	0	USD
CY2019	us-gaap	Gain Loss On Sale Of Property Plant Equipment GainLossOnSaleOfPropertyPlantEquipment	75000	USD
CY2017	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	73513000	USD
CY2019	us-gaap	Payments For Proceeds From Loans And Leases PaymentsForProceedsFromLoansAndLeases	121266000	USD
CY2018	us-gaap	Payments For Proceeds From Loans And Leases PaymentsForProceedsFromLoansAndLeases	98563000	USD
CY2017	us-gaap	Payments For Proceeds From Loans And Leases PaymentsForProceedsFromLoansAndLeases	235154000	USD
CY2019	us-gaap	Proceeds From Maturities Prepayments And Calls Of Available For Sale Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities	242348000	USD
CY2018	us-gaap	Proceeds From Maturities Prepayments And Calls Of Available For Sale Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities	92563000	USD
CY2017	us-gaap	Proceeds From Maturities Prepayments And Calls Of Available For Sale Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities	98894000	USD
CY2019	us-gaap	Payments To Acquire Available For Sale Securities PaymentsToAcquireAvailableForSaleSecurities	242776000	USD
CY2018	us-gaap	Payments To Acquire Available For Sale Securities PaymentsToAcquireAvailableForSaleSecurities	342141000	USD
CY2017	us-gaap	Payments To Acquire Available For Sale Securities PaymentsToAcquireAvailableForSaleSecurities	149914000	USD
CY2019	us-gaap	Proceeds From Sale Of Available For Sale Securities ProceedsFromSaleOfAvailableForSaleSecurities	43962000	USD
CY2018	us-gaap	Proceeds From Sale Of Available For Sale Securities ProceedsFromSaleOfAvailableForSaleSecurities	156014000	USD
CY2017	us-gaap	Proceeds From Sale Of Available For Sale Securities ProceedsFromSaleOfAvailableForSaleSecurities	31028000	USD
CY2019	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	13041000	USD
CY2018	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	23265000	USD
CY2017	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	3063000	USD
CY2019	us-gaap	Proceeds From Sales Of Assets Investing Activities ProceedsFromSalesOfAssetsInvestingActivities	3562000	USD
CY2018	us-gaap	Proceeds From Sales Of Assets Investing Activities ProceedsFromSalesOfAssetsInvestingActivities	9993000	USD
CY2017	us-gaap	Proceeds From Sales Of Assets Investing Activities ProceedsFromSalesOfAssetsInvestingActivities	28874000	USD
CY2019	us-gaap	Proceeds From Sale Of Foreclosed Assets ProceedsFromSaleOfForeclosedAssets	864000	USD
CY2018	us-gaap	Proceeds From Sale Of Foreclosed Assets ProceedsFromSaleOfForeclosedAssets	198000	USD
CY2017	us-gaap	Proceeds From Sale Of Foreclosed Assets ProceedsFromSaleOfForeclosedAssets	930000	USD
CY2019	hfwa	Proceedsfrom Saleof Assets Heldfor Sale ProceedsfromSaleofAssetsHeldforSale	1664000	USD
CY2018	hfwa	Proceedsfrom Saleof Assets Heldfor Sale ProceedsfromSaleofAssetsHeldforSale	1908000	USD
CY2017	hfwa	Proceedsfrom Saleof Assets Heldfor Sale ProceedsfromSaleofAssetsHeldforSale	1849000	USD
CY2019	us-gaap	Payments For Proceeds From Federal Home Loan Bank Stock PaymentsForProceedsFromFederalHomeLoanBankStock	-18032000	USD
CY2018	us-gaap	Payments For Proceeds From Federal Home Loan Bank Stock PaymentsForProceedsFromFederalHomeLoanBankStock	-26538000	USD
CY2017	us-gaap	Payments For Proceeds From Federal Home Loan Bank Stock PaymentsForProceedsFromFederalHomeLoanBankStock	-30018000	USD
CY2019	us-gaap	Payments To Acquire Federal Home Loan Bank Stock PaymentsToAcquireFederalHomeLoanBankStock	18333000	USD
CY2018	us-gaap	Payments To Acquire Federal Home Loan Bank Stock PaymentsToAcquireFederalHomeLoanBankStock	22524000	USD
CY2017	us-gaap	Payments To Acquire Federal Home Loan Bank Stock PaymentsToAcquireFederalHomeLoanBankStock	30801000	USD
CY2019	us-gaap	Proceeds From Sale Of Property Plant And Equipment ProceedsFromSaleOfPropertyPlantAndEquipment	96000	USD
CY2018	us-gaap	Proceeds From Sale Of Property Plant And Equipment ProceedsFromSaleOfPropertyPlantAndEquipment	28000	USD
CY2017	us-gaap	Proceeds From Sale Of Property Plant And Equipment ProceedsFromSaleOfPropertyPlantAndEquipment	0	USD
CY2019	hfwa	Purchasebankownedlifeinsurance Purchasebankownedlifeinsurance	8053000	USD
CY2018	hfwa	Purchasebankownedlifeinsurance Purchasebankownedlifeinsurance	54000	USD
CY2017	hfwa	Purchasebankownedlifeinsurance Purchasebankownedlifeinsurance	4394000	USD
CY2019	us-gaap	Proceeds From Life Insurance Policies ProceedsFromLifeInsurancePolicies	0	USD
CY2018	us-gaap	Proceeds From Life Insurance Policies ProceedsFromLifeInsurancePolicies	0	USD
CY2017	us-gaap	Proceeds From Life Insurance Policies ProceedsFromLifeInsurancePolicies	1101000	USD
CY2019	hfwa	Changeinlowincometaxhousingtaxcreditpartnership Changeinlowincometaxhousingtaxcreditpartnership	-27485000	USD
CY2018	hfwa	Changeinlowincometaxhousingtaxcreditpartnership Changeinlowincometaxhousingtaxcreditpartnership	-8303000	USD
CY2017	hfwa	Changeinlowincometaxhousingtaxcreditpartnership Changeinlowincometaxhousingtaxcreditpartnership	-10762000	USD
CY2019	us-gaap	Cash Acquired From Acquisition CashAcquiredFromAcquisition	0	USD
CY2018	us-gaap	Cash Acquired From Acquisition CashAcquiredFromAcquisition	105974000	USD
CY2017	us-gaap	Cash Acquired From Acquisition CashAcquiredFromAcquisition	0	USD
CY2019	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-120426000	USD
CY2018	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-101634000	USD
CY2017	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-241394000	USD
CY2019	us-gaap	Increase Decrease In Deposits IncreaseDecreaseInDeposits	150274000	USD
CY2018	us-gaap	Increase Decrease In Deposits IncreaseDecreaseInDeposits	214740000	USD
CY2017	us-gaap	Increase Decrease In Deposits IncreaseDecreaseInDeposits	163412000	USD
CY2019	us-gaap	Increase Decrease In Loans To Federal Home Loan Banks IncreaseDecreaseInLoansToFederalHomeLoanBanks	-445800000	USD
CY2018	us-gaap	Increase Decrease In Loans To Federal Home Loan Banks IncreaseDecreaseInLoansToFederalHomeLoanBanks	-554950000	USD
CY2017	us-gaap	Increase Decrease In Loans To Federal Home Loan Banks IncreaseDecreaseInLoansToFederalHomeLoanBanks	-763350000	USD
CY2019	us-gaap	Repayments Of Debt RepaymentsOfDebt	445800000	USD
CY2018	us-gaap	Repayments Of Debt RepaymentsOfDebt	663450000	USD
CY2017	us-gaap	Repayments Of Debt RepaymentsOfDebt	750450000	USD
CY2019	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	30908000	USD
CY2018	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	25791000	USD
CY2017	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	18305000	USD
CY2019	us-gaap	Increase Decrease In Receivables Under Repurchase Agreements IncreaseDecreaseInReceivablesUnderRepurchaseAgreements	11318000	USD
CY2018	us-gaap	Increase Decrease In Receivables Under Repurchase Agreements IncreaseDecreaseInReceivablesUnderRepurchaseAgreements	796000	USD
CY2017	us-gaap	Increase Decrease In Receivables Under Repurchase Agreements IncreaseDecreaseInReceivablesUnderRepurchaseAgreements	-9717000	USD
CY2019	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	58000	USD
CY2018	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	133000	USD
CY2017	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	164000	USD
CY2019	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	8636000	USD
CY2018	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	1704000	USD
CY2017	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	737000	USD
CY2019	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	99470000	USD
CY2018	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	78082000	USD
CY2017	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	167151000	USD
CY2019	us-gaap	Cash And Cash Equivalents Period Increase Decrease CashAndCashEquivalentsPeriodIncreaseDecrease	66658000	USD
CY2018	us-gaap	Cash And Cash Equivalents Period Increase Decrease CashAndCashEquivalentsPeriodIncreaseDecrease	58895000	USD
CY2017	us-gaap	Cash And Cash Equivalents Period Increase Decrease CashAndCashEquivalentsPeriodIncreaseDecrease	-730000	USD
CY2018Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	161910000	USD
CY2017Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	103015000	USD
CY2016Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	103745000	USD
CY2019Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	228568000	USD
CY2018Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	161910000	USD
CY2017Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	103015000	USD
CY2019	us-gaap	Interest Paid Net InterestPaidNet	17867000	USD
CY2018	us-gaap	Interest Paid Net InterestPaidNet	12385000	USD
CY2017	us-gaap	Interest Paid Net InterestPaidNet	8399000	USD
CY2019	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	7528000	USD
CY2018	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	5634000	USD
CY2017	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	2045000	USD
CY2019	us-gaap	Transfer To Other Real Estate TransferToOtherRealEstate	0	USD
CY2018	us-gaap	Transfer To Other Real Estate TransferToOtherRealEstate	434000	USD
CY2017	us-gaap	Transfer To Other Real Estate TransferToOtherRealEstate	32000	USD
CY2019	hfwa	Transferof Propertyand Equipmentto Prepaid Expensesand Other Assets Heldforsale TransferofPropertyandEquipmenttoPrepaidExpensesandOtherAssetsHeldforsale	1533000	USD
CY2018	hfwa	Transferof Propertyand Equipmentto Prepaid Expensesand Other Assets Heldforsale TransferofPropertyandEquipmenttoPrepaidExpensesandOtherAssetsHeldforsale	1836000	USD
CY2017	hfwa	Transferof Propertyand Equipmentto Prepaid Expensesand Other Assets Heldforsale TransferofPropertyandEquipmenttoPrepaidExpensesandOtherAssetsHeldforsale	2687000	USD
CY2019	hfwa	Investmentinlowincomehousingtaxpartnership Investmentinlowincomehousingtaxpartnership	46677000	USD
CY2018	hfwa	Investmentinlowincomehousingtaxpartnership Investmentinlowincomehousingtaxpartnership	0	USD
CY2017	hfwa	Investmentinlowincomehousingtaxpartnership Investmentinlowincomehousingtaxpartnership	33171000	USD
CY2019	hfwa	Transferof Bank Owned Life Insurance To Prepaid Expenses And Other Assets TransferofBankOwnedLifeInsuranceToPrepaidExpensesAndOtherAssets	209000	USD
CY2018	hfwa	Transferof Bank Owned Life Insurance To Prepaid Expenses And Other Assets TransferofBankOwnedLifeInsuranceToPrepaidExpensesAndOtherAssets	421000	USD
CY2017	hfwa	Transferof Bank Owned Life Insurance To Prepaid Expenses And Other Assets TransferofBankOwnedLifeInsuranceToPrepaidExpensesAndOtherAssets	0	USD
CY2019	us-gaap	Stock Issued During Period Value Acquisitions StockIssuedDuringPeriodValueAcquisitions	0	USD
CY2018	us-gaap	Stock Issued During Period Value Acquisitions StockIssuedDuringPeriodValueAcquisitions	230043000	USD
CY2017	us-gaap	Stock Issued During Period Value Acquisitions StockIssuedDuringPeriodValueAcquisitions	0	USD
CY2019	hfwa	Noncash Or Part Noncash Acquisition Investment Available For Sale NoncashOrPartNoncashAcquisitionInvestmentAvailableForSale	0	USD
CY2018	hfwa	Noncash Or Part Noncash Acquisition Investment Available For Sale NoncashOrPartNoncashAcquisitionInvestmentAvailableForSale	84846000	USD
CY2017	hfwa	Noncash Or Part Noncash Acquisition Investment Available For Sale NoncashOrPartNoncashAcquisitionInvestmentAvailableForSale	0	USD
CY2019	hfwa	Noncash Or Part Noncash Acquisition Purchased Non Covered Loans Receivable NoncashOrPartNoncashAcquisitionPurchasedNonCoveredLoansReceivable	0	USD
CY2018	hfwa	Noncash Or Part Noncash Acquisition Purchased Non Covered Loans Receivable NoncashOrPartNoncashAcquisitionPurchasedNonCoveredLoansReceivable	718620000	USD
CY2017	hfwa	Noncash Or Part Noncash Acquisition Purchased Non Covered Loans Receivable NoncashOrPartNoncashAcquisitionPurchasedNonCoveredLoansReceivable	0	USD
CY2019	hfwa	Noncash Or Part Noncash Acquisition Other Real Estate Owned NoncashOrPartNoncashAcquisitionOtherRealEstateOwned	0	USD
CY2018	hfwa	Noncash Or Part Noncash Acquisition Other Real Estate Owned NoncashOrPartNoncashAcquisitionOtherRealEstateOwned	1796000	USD
CY2017	hfwa	Noncash Or Part Noncash Acquisition Other Real Estate Owned NoncashOrPartNoncashAcquisitionOtherRealEstateOwned	0	USD
CY2019	us-gaap	Noncash Or Part Noncash Acquisition Fixed Assets Acquired1 NoncashOrPartNoncashAcquisitionFixedAssetsAcquired1	0	USD
CY2018	us-gaap	Noncash Or Part Noncash Acquisition Fixed Assets Acquired1 NoncashOrPartNoncashAcquisitionFixedAssetsAcquired1	3785000	USD
CY2017	us-gaap	Noncash Or Part Noncash Acquisition Fixed Assets Acquired1 NoncashOrPartNoncashAcquisitionFixedAssetsAcquired1	0	USD
CY2019	hfwa	Noncash Or Part Noncash Acquisition Accounts Fhlb Stock Acquired NoncashOrPartNoncashAcquisitionAccountsFhlbStockAcquired	0	USD
CY2018	hfwa	Noncash Or Part Noncash Acquisition Accounts Fhlb Stock Acquired NoncashOrPartNoncashAcquisitionAccountsFhlbStockAcquired	1743000	USD
CY2017	hfwa	Noncash Or Part Noncash Acquisition Accounts Fhlb Stock Acquired NoncashOrPartNoncashAcquisitionAccountsFhlbStockAcquired	0	USD
CY2019	us-gaap	Noncash Or Part Noncash Acquisition Accounts Receivable Acquired1 NoncashOrPartNoncashAcquisitionAccountsReceivableAcquired1	0	USD
CY2018	us-gaap	Noncash Or Part Noncash Acquisition Accounts Receivable Acquired1 NoncashOrPartNoncashAcquisitionAccountsReceivableAcquired1	2454000	USD
CY2017	us-gaap	Noncash Or Part Noncash Acquisition Accounts Receivable Acquired1 NoncashOrPartNoncashAcquisitionAccountsReceivableAcquired1	0	USD
CY2019	hfwa	Noncashor Part Noncash Bank Owned Life Insuranceacquired NoncashorPartNoncashBankOwnedLifeInsuranceacquired	0	USD
CY2018	hfwa	Noncashor Part Noncash Bank Owned Life Insuranceacquired NoncashorPartNoncashBankOwnedLifeInsuranceacquired	17116000	USD
CY2017	hfwa	Noncashor Part Noncash Bank Owned Life Insuranceacquired NoncashorPartNoncashBankOwnedLifeInsuranceacquired	0	USD
CY2019	us-gaap	Noncash Or Part Noncash Acquisition Other Assets Acquired1 NoncashOrPartNoncashAcquisitionOtherAssetsAcquired1	0	USD
CY2018	us-gaap	Noncash Or Part Noncash Acquisition Other Assets Acquired1 NoncashOrPartNoncashAcquisitionOtherAssetsAcquired1	2957000	USD
CY2017	us-gaap	Noncash Or Part Noncash Acquisition Other Assets Acquired1 NoncashOrPartNoncashAcquisitionOtherAssetsAcquired1	0	USD
CY2019	us-gaap	Noncash Or Part Noncash Acquisition Intangible Assets Acquired1 NoncashOrPartNoncashAcquisitionIntangibleAssetsAcquired1	0	USD
CY2018	us-gaap	Noncash Or Part Noncash Acquisition Intangible Assets Acquired1 NoncashOrPartNoncashAcquisitionIntangibleAssetsAcquired1	18345000	USD
CY2017	us-gaap	Noncash Or Part Noncash Acquisition Intangible Assets Acquired1 NoncashOrPartNoncashAcquisitionIntangibleAssetsAcquired1	0	USD
CY2019	us-gaap	Goodwill Acquired During Period GoodwillAcquiredDuringPeriod	0	USD
CY2018	us-gaap	Goodwill Acquired During Period GoodwillAcquiredDuringPeriod	121910000	USD
CY2017	us-gaap	Goodwill Acquired During Period GoodwillAcquiredDuringPeriod	0	USD
CY2019	hfwa	Noncash Or Part Noncash Acquisition Deposits Liability NoncashOrPartNoncashAcquisitionDepositsLiability	0	USD
CY2018	hfwa	Noncash Or Part Noncash Acquisition Deposits Liability NoncashOrPartNoncashAcquisitionDepositsLiability	824602000	USD
CY2017	hfwa	Noncash Or Part Noncash Acquisition Deposits Liability NoncashOrPartNoncashAcquisitionDepositsLiability	0	USD
CY2019	us-gaap	Noncash Or Part Noncash Acquisition Debt Assumed1 NoncashOrPartNoncashAcquisitionDebtAssumed1	0	USD
CY2018	us-gaap	Noncash Or Part Noncash Acquisition Debt Assumed1 NoncashOrPartNoncashAcquisitionDebtAssumed1	16000000	USD
CY2017	us-gaap	Noncash Or Part Noncash Acquisition Debt Assumed1 NoncashOrPartNoncashAcquisitionDebtAssumed1	0	USD
CY2019	hfwa	Noncashorpartnoncashacquisitionsecuritiessoldunderagreementstorepurchase Noncashorpartnoncashacquisitionsecuritiessoldunderagreementstorepurchase	0	USD
CY2018	hfwa	Noncashorpartnoncashacquisitionsecuritiessoldunderagreementstorepurchase Noncashorpartnoncashacquisitionsecuritiessoldunderagreementstorepurchase	462000	USD
CY2017	hfwa	Noncashorpartnoncashacquisitionsecuritiessoldunderagreementstorepurchase Noncashorpartnoncashacquisitionsecuritiessoldunderagreementstorepurchase	0	USD
CY2019	us-gaap	Noncash Or Part Noncash Acquisition Other Liabilities Assumed1 NoncashOrPartNoncashAcquisitionOtherLiabilitiesAssumed1	0	USD
CY2018	us-gaap	Noncash Or Part Noncash Acquisition Other Liabilities Assumed1 NoncashOrPartNoncashAcquisitionOtherLiabilitiesAssumed1	8439000	USD
CY2017	us-gaap	Noncash Or Part Noncash Acquisition Other Liabilities Assumed1 NoncashOrPartNoncashAcquisitionOtherLiabilitiesAssumed1	0	USD
CY2019	us-gaap	Prior Period Reclassification Adjustment Description PriorPeriodReclassificationAdjustmentDescription	<div style="line-height:120%;padding-top:6px;text-align:justify;text-indent:48px;font-size:10pt;"><span style="font-family:Arial;font-size:10pt;">Certain prior year amounts in the Consolidated Statements of Income have been reclassified to conform to the current year’s presentation. Reclassifications had no effect on the prior years' net income or stockholders’ equity.</span></div>
CY2019Q4	hfwa	Allowancefor Loanlossesfor Off Balance Sheet Financial Instruments AllowanceforLoanlossesforOffBalanceSheetFinancialInstruments	306000000	USD
CY2019Q4	us-gaap	Interest Rate Derivatives At Fair Value Net InterestRateDerivativesAtFairValueNet	0	USD
CY2019Q4	hfwa	Capitalization Threshold Policy Contractual Lease Payments CapitalizationThresholdPolicyContractualLeasePayments	25000	USD
CY2019	hfwa	Variable Interest Entity Numberof Investments VariableInterestEntityNumberofInvestments	2	investment
CY2019	us-gaap	Number Of Operating Segments NumberOfOperatingSegments	1	segment
CY2018	us-gaap	Business Acquisitions Pro Forma Revenue BusinessAcquisitionsProFormaRevenue	194989000	USD
CY2017	us-gaap	Business Acquisitions Pro Forma Revenue BusinessAcquisitionsProFormaRevenue	174190000	USD
CY2018	us-gaap	Business Acquisitions Pro Forma Net Income Loss BusinessAcquisitionsProFormaNetIncomeLoss	69515000	USD
CY2017	us-gaap	Business Acquisitions Pro Forma Net Income Loss BusinessAcquisitionsProFormaNetIncomeLoss	41551000	USD
CY2018	us-gaap	Business Acquisition Pro Forma Earnings Per Share Basic BusinessAcquisitionProFormaEarningsPerShareBasic	1.88
CY2017	us-gaap	Business Acquisition Pro Forma Earnings Per Share Basic BusinessAcquisitionProFormaEarningsPerShareBasic	1.12
CY2018	us-gaap	Business Acquisition Pro Forma Earnings Per Share Diluted BusinessAcquisitionProFormaEarningsPerShareDiluted	1.87
CY2017	us-gaap	Business Acquisition Pro Forma Earnings Per Share Diluted BusinessAcquisitionProFormaEarningsPerShareDiluted	1.12
CY2019Q4	us-gaap	Available For Sale Debt Securities Amortized Cost Basis AvailableForSaleDebtSecuritiesAmortizedCostBasis	939160000	USD
CY2019Q4	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Gain Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax	14660000	USD
CY2019Q4	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Loss Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax	1508000	USD
CY2019Q4	us-gaap	Available For Sale Securities Debt Securities AvailableForSaleSecuritiesDebtSecurities	952312000	USD
CY2018Q4	us-gaap	Available For Sale Debt Securities Amortized Cost Basis AvailableForSaleDebtSecuritiesAmortizedCostBasis	985541000	USD
CY2018Q4	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Gain Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax	3285000	USD
CY2018Q4	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Loss Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax	12731000	USD
CY2018Q4	us-gaap	Available For Sale Securities Debt Securities AvailableForSaleSecuritiesDebtSecurities	976095000	USD
CY2019Q4	us-gaap	Trading Securities TradingSecurities	0	USD
CY2019Q4	us-gaap	Available For Sale Securities Debt Maturities Within One Year Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearAmortizedCost	18745000	USD
CY2019Q4	us-gaap	Available For Sale Securities Debt Maturities Within One Year Fair Value AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearFairValue	18888000	USD
CY2019Q4	us-gaap	Available For Sale Securities Debt Maturities After One Through Five Years Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsAmortizedCost	174623000	USD
CY2019Q4	us-gaap	Available For Sale Securities Debt Maturities After One Through Five Years Fair Value AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsFairValue	176734000	USD
CY2019Q4	us-gaap	Available For Sale Securities Debt Maturities After Five Through Ten Years Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsAmortizedCost	293616000	USD
CY2019Q4	us-gaap	Available For Sale Securities Debt Maturities After Five Through Ten Years Fair Value AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsFairValue	298650000	USD
CY2019Q4	us-gaap	Available For Sale Securities Debt Maturities After Ten Years Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesAfterTenYearsAmortizedCost	452176000	USD
CY2019Q4	us-gaap	Available For Sale Securities Debt Maturities After Ten Years Fair Value AvailableForSaleSecuritiesDebtMaturitiesAfterTenYearsFairValue	458040000	USD
CY2019Q4	us-gaap	Available For Sale Securities Amortized Cost AvailableForSaleSecuritiesAmortizedCost	939160000	USD
CY2019Q4	us-gaap	Available For Sale Securities AvailableForSaleSecurities	952312000	USD
CY2019Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position Less Than12 Months DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12Months	145676000	USD
CY2019Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position Less Than12 Months Accumulated Loss DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss	558000	USD
CY2019Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position12 Months Or Longer DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLonger	107451000	USD
CY2019Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position12 Months Or Longer Accumulated Loss DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss	950000	USD
CY2019Q4	us-gaap	Debt Securities Available For Sale Unrealized Loss Position DebtSecuritiesAvailableForSaleUnrealizedLossPosition	253127000	USD
CY2019Q4	us-gaap	Debt Securities Available For Sale Unrealized Loss Position Accumulated Loss DebtSecuritiesAvailableForSaleUnrealizedLossPositionAccumulatedLoss	1508000	USD
CY2018Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position Less Than12 Months DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12Months	202036000	USD
CY2018Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position Less Than12 Months Accumulated Loss DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss	823000	USD
CY2018Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position12 Months Or Longer DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLonger	432404000	USD
CY2018Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position12 Months Or Longer Accumulated Loss DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss	11908000	USD
CY2018Q4	us-gaap	Debt Securities Available For Sale Unrealized Loss Position DebtSecuritiesAvailableForSaleUnrealizedLossPosition	634440000	USD
CY2018Q4	us-gaap	Debt Securities Available For Sale Unrealized Loss Position Accumulated Loss DebtSecuritiesAvailableForSaleUnrealizedLossPositionAccumulatedLoss	12731000	USD
CY2019	us-gaap	Other Than Temporary Impairment Losses Investments Portion Recognized In Earnings Net Heldtomaturity Securities OtherThanTemporaryImpairmentLossesInvestmentsPortionRecognizedInEarningsNetHeldtomaturitySecurities	0	USD
CY2019	us-gaap	Debt Securities Available For Sale Realized Gain DebtSecuritiesAvailableForSaleRealizedGain	558000	USD
CY2018	us-gaap	Debt Securities Available For Sale Realized Gain DebtSecuritiesAvailableForSaleRealizedGain	273000	USD
CY2017	us-gaap	Debt Securities Available For Sale Realized Gain DebtSecuritiesAvailableForSaleRealizedGain	193000	USD
CY2019	us-gaap	Debt Securities Available For Sale Realized Loss DebtSecuritiesAvailableForSaleRealizedLoss	228000	USD
CY2018	us-gaap	Debt Securities Available For Sale Realized Loss DebtSecuritiesAvailableForSaleRealizedLoss	136000	USD
CY2017	us-gaap	Debt Securities Available For Sale Realized Loss DebtSecuritiesAvailableForSaleRealizedLoss	187000	USD
CY2019	us-gaap	Debt Securities Available For Sale Realized Gain Loss DebtSecuritiesAvailableForSaleRealizedGainLoss	330000	USD
CY2018	us-gaap	Debt Securities Available For Sale Realized Gain Loss DebtSecuritiesAvailableForSaleRealizedGainLoss	137000	USD
CY2017	us-gaap	Debt Securities Available For Sale Realized Gain Loss DebtSecuritiesAvailableForSaleRealizedGainLoss	6000	USD
CY2019Q4	us-gaap	Deposit Liabilities Collateral Issued Financial Instruments DepositLiabilitiesCollateralIssuedFinancialInstruments	229189000	USD
CY2019Q4	us-gaap	Pledged Assets Separately Reported Securities Pledged As Collateral At Fair Value PledgedAssetsSeparatelyReportedSecuritiesPledgedAsCollateralAtFairValue	232917000	USD
CY2018Q4	us-gaap	Deposit Liabilities Collateral Issued Financial Instruments DepositLiabilitiesCollateralIssuedFinancialInstruments	267977000	USD
CY2018Q4	us-gaap	Pledged Assets Separately Reported Securities Pledged As Collateral At Fair Value PledgedAssetsSeparatelyReportedSecuritiesPledgedAsCollateralAtFairValue	264675000	USD
CY2019	hfwa	Number Of Loan Segments NumberOfLoanSegments	4	segment
CY2019	hfwa	Loans And Leases Receivable Maximum Percentage Consumer Loans LoansAndLeasesReceivableMaximumPercentageConsumerLoans	0.80
CY2019Q4	us-gaap	Loans And Leases Receivable Gross Carrying Amount LoansAndLeasesReceivableGrossCarryingAmount	3765438000	USD
CY2018Q4	us-gaap	Loans And Leases Receivable Gross Carrying Amount LoansAndLeasesReceivableGrossCarryingAmount	3650651000	USD
CY2019Q4	us-gaap	Unamortized Loan Commitment And Origination Fees And Unamortized Discounts Or Premiums UnamortizedLoanCommitmentAndOriginationFeesAndUnamortizedDiscountsOrPremiums	2441000	USD
CY2018Q4	us-gaap	Unamortized Loan Commitment And Origination Fees And Unamortized Discounts Or Premiums UnamortizedLoanCommitmentAndOriginationFeesAndUnamortizedDiscountsOrPremiums	3509000	USD
CY2019Q4	us-gaap	Loans And Leases Receivable Net Of Deferred Income LoansAndLeasesReceivableNetOfDeferredIncome	3767879000	USD
CY2018Q4	us-gaap	Loans And Leases Receivable Net Of Deferred Income LoansAndLeasesReceivableNetOfDeferredIncome	3654160000	USD
CY2019Q4	us-gaap	Loans And Leases Receivable Allowance LoansAndLeasesReceivableAllowance	36171000	USD
CY2018Q4	us-gaap	Loans And Leases Receivable Allowance LoansAndLeasesReceivableAllowance	35042000	USD
CY2019Q4	us-gaap	Loans And Leases Receivable Net Reported Amount LoansAndLeasesReceivableNetReportedAmount	3731708000	USD
CY2018Q4	us-gaap	Loans And Leases Receivable Net Reported Amount LoansAndLeasesReceivableNetReportedAmount	3619118000	USD
CY2019Q4	hfwa	Concentration Risk Percentage Greater Than Ten Percent ConcentrationRiskPercentageGreaterThanTenPercent	0
CY2019	us-gaap	Concentration Risk Percentage1 ConcentrationRiskPercentage1	0.10
CY2019Q4	hfwa	Financing Receivables Pass Rated FinancingReceivablesPassRated	3622596000	USD
CY2019Q4	hfwa	Financing Receivables Oaem Rated FinancingReceivablesOaemRated	48895000	USD
CY2019Q4	hfwa	Financing Receivables Substandard Rated FinancingReceivablesSubstandardRated	93423000	USD
CY2019Q4	hfwa	Financing Receivables Doubtful Rated FinancingReceivablesDoubtfulRated	524000	USD
CY2019Q4	us-gaap	Loans And Leases Receivable Gross Carrying Amount LoansAndLeasesReceivableGrossCarryingAmount	3765438000	USD
CY2018Q4	hfwa	Financing Receivables Pass Rated FinancingReceivablesPassRated	3518105000	USD
CY2018Q4	hfwa	Financing Receivables Oaem Rated FinancingReceivablesOaemRated	53640000	USD
CY2018Q4	hfwa	Financing Receivables Substandard Rated FinancingReceivablesSubstandardRated	78382000	USD
CY2018Q4	hfwa	Financing Receivables Doubtful Rated FinancingReceivablesDoubtfulRated	524000	USD
CY2018Q4	us-gaap	Loans And Leases Receivable Gross Carrying Amount LoansAndLeasesReceivableGrossCarryingAmount	3650651000	USD
CY2019Q4	hfwa	Potential Problem Loans Receivable PotentialProblemLoansReceivable	87800000	USD
CY2018Q4	hfwa	Potential Problem Loans Receivable PotentialProblemLoansReceivable	101300000	USD
CY2019Q4	us-gaap	Financing Receivable Recorded Investment Nonaccrual Status FinancingReceivableRecordedInvestmentNonaccrualStatus	44536000	USD
CY2018Q4	us-gaap	Financing Receivable Recorded Investment Nonaccrual Status FinancingReceivableRecordedInvestmentNonaccrualStatus	13703000	USD
CY2019Q4	us-gaap	Financing Receivable Recorded Investment Past Due FinancingReceivableRecordedInvestmentPastDue	25393000	USD
CY2019Q4	us-gaap	Financing Receivable Recorded Investment Current FinancingReceivableRecordedInvestmentCurrent	3721932000	USD
CY2019Q4	hfwa	Loanand Lease Receivable Grossexcluding Purchase Credit Impaired Loans LoanandLeaseReceivableGrossexcludingPurchaseCreditImpairedLoans	3747325000	USD
CY2019Q4	us-gaap	Certain Loans And Debt Securities Acquired In Transfer With Related Allowance For Credit Losses Due To Subsequent Impairment CertainLoansAndDebtSecuritiesAcquiredInTransferWithRelatedAllowanceForCreditLossesDueToSubsequentImpairment	18113000	USD
CY2019Q4	us-gaap	Loans And Leases Receivable Gross Carrying Amount LoansAndLeasesReceivableGrossCarryingAmount	3765438000	USD
CY2018Q4	us-gaap	Financing Receivable Recorded Investment Past Due FinancingReceivableRecordedInvestmentPastDue	14113000	USD
CY2018Q4	us-gaap	Financing Receivable Recorded Investment Current FinancingReceivableRecordedInvestmentCurrent	3611631000	USD
CY2018Q4	hfwa	Loanand Lease Receivable Grossexcluding Purchase Credit Impaired Loans LoanandLeaseReceivableGrossexcludingPurchaseCreditImpairedLoans	3625744000	USD
CY2018Q4	us-gaap	Certain Loans And Debt Securities Acquired In Transfer With Related Allowance For Credit Losses Due To Subsequent Impairment CertainLoansAndDebtSecuritiesAcquiredInTransferWithRelatedAllowanceForCreditLossesDueToSubsequentImpairment	24907000	USD
CY2018Q4	us-gaap	Loans And Leases Receivable Gross Carrying Amount LoansAndLeasesReceivableGrossCarryingAmount	3650651000	USD
CY2019Q4	us-gaap	Financing Receivable Recorded Investment90 Days Past Due And Still Accruing FinancingReceivableRecordedInvestment90DaysPastDueAndStillAccruing	0	USD
CY2019Q4	us-gaap	Impaired Financing Receivable With No Related Allowance Recorded Investment ImpairedFinancingReceivableWithNoRelatedAllowanceRecordedInvestment	39660000	USD
CY2019Q4	us-gaap	Impaired Financing Receivable With Related Allowance Recorded Investment ImpairedFinancingReceivableWithRelatedAllowanceRecordedInvestment	17831000	USD
CY2019Q4	us-gaap	Impaired Financing Receivable Recorded Investment ImpairedFinancingReceivableRecordedInvestment	57491000	USD
CY2019Q4	us-gaap	Impaired Financing Receivable Unpaid Principal Balance ImpairedFinancingReceivableUnpaidPrincipalBalance	59837000	USD
CY2019Q4	us-gaap	Impaired Financing Receivable Related Allowance ImpairedFinancingReceivableRelatedAllowance	2143000	USD
CY2018Q4	us-gaap	Impaired Financing Receivable With No Related Allowance Recorded Investment ImpairedFinancingReceivableWithNoRelatedAllowanceRecordedInvestment	7590000	USD
CY2018Q4	us-gaap	Impaired Financing Receivable With Related Allowance Recorded Investment ImpairedFinancingReceivableWithRelatedAllowanceRecordedInvestment	28849000	USD
CY2018Q4	us-gaap	Impaired Financing Receivable Recorded Investment ImpairedFinancingReceivableRecordedInvestment	36439000	USD
CY2018Q4	us-gaap	Impaired Financing Receivable Unpaid Principal Balance ImpairedFinancingReceivableUnpaidPrincipalBalance	39233000	USD
CY2018Q4	us-gaap	Impaired Financing Receivable Related Allowance ImpairedFinancingReceivableRelatedAllowance	4170000	USD
CY2019	us-gaap	Impaired Financing Receivable Average Recorded Investment ImpairedFinancingReceivableAverageRecordedInvestment	47166000	USD
CY2018	us-gaap	Impaired Financing Receivable Average Recorded Investment ImpairedFinancingReceivableAverageRecordedInvestment	39488000	USD
CY2017	us-gaap	Impaired Financing Receivable Average Recorded Investment ImpairedFinancingReceivableAverageRecordedInvestment	32751000	USD
CY2019Q4	hfwa	Financing Receivable Modifications Accruing Recorded Investment FinancingReceivableModificationsAccruingRecordedInvestment	14466000	USD
CY2019Q4	hfwa	Financing Receivable Modifications Non Accruing Recorded Investment FinancingReceivableModificationsNonAccruingRecordedInvestment	26343000	USD
CY2018Q4	hfwa	Financing Receivable Modifications Accruing Recorded Investment FinancingReceivableModificationsAccruingRecordedInvestment	22736000	USD
CY2018Q4	hfwa	Financing Receivable Modifications Non Accruing Recorded Investment FinancingReceivableModificationsNonAccruingRecordedInvestment	6943000	USD
CY2019Q4	hfwa	Allowancefor Loan Losseson Financing Receivable Modifications Accruing Recorded Investment AllowanceforLoanLossesonFinancingReceivableModificationsAccruingRecordedInvestment	1300000	USD
CY2019Q4	hfwa	Allowancefor Loan Losseson Financing Receivable Modifications Non Accruing Recorded Investment AllowanceforLoanLossesonFinancingReceivableModificationsNonAccruingRecordedInvestment	218000	USD
CY2018Q4	hfwa	Allowancefor Loan Losseson Financing Receivable Modifications Accruing Recorded Investment AllowanceforLoanLossesonFinancingReceivableModificationsAccruingRecordedInvestment	2257000	USD
CY2018Q4	hfwa	Allowancefor Loan Losseson Financing Receivable Modifications Non Accruing Recorded Investment AllowanceforLoanLossesonFinancingReceivableModificationsNonAccruingRecordedInvestment	658000	USD
CY2019Q4	us-gaap	Loans And Leases Receivable Impaired Commitment To Lend LoansAndLeasesReceivableImpairedCommitmentToLend	736000	USD
CY2018Q4	us-gaap	Loans And Leases Receivable Impaired Commitment To Lend LoansAndLeasesReceivableImpairedCommitmentToLend	943000	USD
CY2019	us-gaap	Financing Receivable Modifications Number Of Contracts2 FinancingReceivableModificationsNumberOfContracts2	17	contract
CY2018	us-gaap	Financing Receivable Modifications Number Of Contracts2 FinancingReceivableModificationsNumberOfContracts2	18	contract
CY2017	us-gaap	Financing Receivable Modifications Number Of Contracts2 FinancingReceivableModificationsNumberOfContracts2	12	contract
CY2019Q4	us-gaap	Certain Loans Acquired In Transfer Not Accounted For As Debt Securities Outstanding Balance CertainLoansAcquiredInTransferNotAccountedForAsDebtSecuritiesOutstandingBalance	20950000	USD
CY2019Q4	us-gaap	Certain Loans And Debt Securities Acquired In Transfer With Related Allowance For Credit Losses Due To Subsequent Impairment CertainLoansAndDebtSecuritiesAcquiredInTransferWithRelatedAllowanceForCreditLossesDueToSubsequentImpairment	18113000	USD
CY2018Q4	us-gaap	Certain Loans Acquired In Transfer Not Accounted For As Debt Securities Outstanding Balance CertainLoansAcquiredInTransferNotAccountedForAsDebtSecuritiesOutstandingBalance	28461000	USD
CY2018Q4	us-gaap	Certain Loans And Debt Securities Acquired In Transfer With Related Allowance For Credit Losses Due To Subsequent Impairment CertainLoansAndDebtSecuritiesAcquiredInTransferWithRelatedAllowanceForCreditLossesDueToSubsequentImpairment	24907000	USD
CY2018Q4	us-gaap	Loans And Leases Receivable Related Parties LoansAndLeasesReceivableRelatedParties	8367000	USD
CY2017Q4	us-gaap	Loans And Leases Receivable Related Parties LoansAndLeasesReceivableRelatedParties	8460000	USD
CY2016Q4	us-gaap	Loans And Leases Receivable Related Parties LoansAndLeasesReceivableRelatedParties	19917000	USD
CY2019	hfwa	Loansand Leases Receivable Related Parties Elimination Dueto Changein Related Party Status LoansandLeasesReceivableRelatedPartiesEliminationDuetoChangeinRelatedPartyStatus	0	USD
CY2018	hfwa	Loansand Leases Receivable Related Parties Elimination Dueto Changein Related Party Status LoansandLeasesReceivableRelatedPartiesEliminationDuetoChangeinRelatedPartyStatus	0	USD
CY2017	hfwa	Loansand Leases Receivable Related Parties Elimination Dueto Changein Related Party Status LoansandLeasesReceivableRelatedPartiesEliminationDuetoChangeinRelatedPartyStatus	-10930000	USD
CY2019	us-gaap	Loans And Leases Receivable Related Parties Additions LoansAndLeasesReceivableRelatedPartiesAdditions	0	USD
CY2018	us-gaap	Loans And Leases Receivable Related Parties Additions LoansAndLeasesReceivableRelatedPartiesAdditions	211000	USD
CY2017	us-gaap	Loans And Leases Receivable Related Parties Additions LoansAndLeasesReceivableRelatedPartiesAdditions	0	USD
CY2019	us-gaap	Loans And Leases Receivable Related Parties Proceeds LoansAndLeasesReceivableRelatedPartiesProceeds	223000	USD
CY2018	us-gaap	Loans And Leases Receivable Related Parties Proceeds LoansAndLeasesReceivableRelatedPartiesProceeds	304000	USD
CY2017	us-gaap	Loans And Leases Receivable Related Parties Proceeds LoansAndLeasesReceivableRelatedPartiesProceeds	527000	USD
CY2019Q4	us-gaap	Loans And Leases Receivable Related Parties LoansAndLeasesReceivableRelatedParties	8144000	USD
CY2018Q4	us-gaap	Loans And Leases Receivable Related Parties LoansAndLeasesReceivableRelatedParties	8367000	USD
CY2017Q4	us-gaap	Loans And Leases Receivable Related Parties LoansAndLeasesReceivableRelatedParties	8460000	USD
CY2019Q4	hfwa	Unfunded Commitmentson Loansand Leases Receivable Related Parties UnfundedCommitmentsonLoansandLeasesReceivableRelatedParties	557000000	USD
CY2018Q4	hfwa	Unfunded Commitmentson Loansand Leases Receivable Related Parties UnfundedCommitmentsonLoansandLeasesReceivableRelatedParties	592000000	USD
CY2019Q4	hfwa	Borrowingsfrom Related Parties BorrowingsfromRelatedParties	0	USD
CY2019Q4	us-gaap	Loans Receivable Held For Sale Net Not Part Of Disposal Group LoansReceivableHeldForSaleNetNotPartOfDisposalGroup	5500000	USD
CY2018Q4	us-gaap	Loans Receivable Held For Sale Net Not Part Of Disposal Group LoansReceivableHeldForSaleNetNotPartOfDisposalGroup	1600000	USD
CY2019Q4	us-gaap	Servicing Asset At Fair Value Amount ServicingAssetAtFairValueAmount	361000	USD
CY2019Q4	us-gaap	Valuation Allowance For Impairment Of Recognized Servicing Assets Balance ValuationAllowanceForImpairmentOfRecognizedServicingAssetsBalance	0	USD
CY2018Q4	us-gaap	Loans And Leases Receivable Allowance LoansAndLeasesReceivableAllowance	35042000	USD
CY2017Q4	us-gaap	Loans And Leases Receivable Allowance LoansAndLeasesReceivableAllowance	32086000	USD
CY2016Q4	us-gaap	Loans And Leases Receivable Allowance LoansAndLeasesReceivableAllowance	31083000	USD
CY2019	us-gaap	Allowance For Loan And Lease Losses Write Offs AllowanceForLoanAndLeaseLossesWriteOffs	4989000	USD
CY2018	us-gaap	Allowance For Loan And Lease Losses Write Offs AllowanceForLoanAndLeaseLossesWriteOffs	3605000	USD
CY2017	us-gaap	Allowance For Loan And Lease Losses Write Offs AllowanceForLoanAndLeaseLossesWriteOffs	4838000	USD
CY2019	us-gaap	Allowance For Loan And Lease Loss Recovery Of Bad Debts AllowanceForLoanAndLeaseLossRecoveryOfBadDebts	1807000	USD
CY2018	us-gaap	Allowance For Loan And Lease Loss Recovery Of Bad Debts AllowanceForLoanAndLeaseLossRecoveryOfBadDebts	1432000	USD
CY2017	us-gaap	Allowance For Loan And Lease Loss Recovery Of Bad Debts AllowanceForLoanAndLeaseLossRecoveryOfBadDebts	1621000	USD
CY2019	us-gaap	Provision For Loan And Lease Losses ProvisionForLoanAndLeaseLosses	4311000	USD
CY2018	us-gaap	Provision For Loan And Lease Losses ProvisionForLoanAndLeaseLosses	5129000	USD
CY2017	us-gaap	Provision For Loan And Lease Losses ProvisionForLoanAndLeaseLosses	4220000	USD
CY2019Q4	us-gaap	Loans And Leases Receivable Allowance LoansAndLeasesReceivableAllowance	36171000	USD
CY2018Q4	us-gaap	Loans And Leases Receivable Allowance LoansAndLeasesReceivableAllowance	35042000	USD
CY2017Q4	us-gaap	Loans And Leases Receivable Allowance LoansAndLeasesReceivableAllowance	32086000	USD
CY2018Q4	us-gaap	Loans And Leases Receivable Allowance LoansAndLeasesReceivableAllowance	35042000	USD
CY2019	us-gaap	Allowance For Loan And Lease Losses Write Offs AllowanceForLoanAndLeaseLossesWriteOffs	4989000	USD
CY2019	us-gaap	Allowance For Loan And Lease Loss Recovery Of Bad Debts AllowanceForLoanAndLeaseLossRecoveryOfBadDebts	1807000	USD
CY2019	us-gaap	Provision For Loan And Lease Losses ProvisionForLoanAndLeaseLosses	4311000	USD
CY2019Q4	us-gaap	Loans And Leases Receivable Allowance LoansAndLeasesReceivableAllowance	36171000	USD
CY2019Q4	us-gaap	Financing Receivable Allowance For Credit Losses Individually Evaluated For Impairment1 FinancingReceivableAllowanceForCreditLossesIndividuallyEvaluatedForImpairment1	2143000	USD
CY2019Q4	us-gaap	Financing Receivable Allowance For Credit Losses Collectively Evaluated For Impairment FinancingReceivableAllowanceForCreditLossesCollectivelyEvaluatedForImpairment	31759000	USD
CY2019Q4	us-gaap	Certain Loans And Debt Securities Acquired In Transfer Allowance For Credit Losses Due To Subsequent Impairment CertainLoansAndDebtSecuritiesAcquiredInTransferAllowanceForCreditLossesDueToSubsequentImpairment	2269000	USD
CY2019Q4	us-gaap	Loans And Leases Receivable Allowance LoansAndLeasesReceivableAllowance	36171000	USD
CY2019Q4	us-gaap	Financing Receivable Individually Evaluated For Impairment FinancingReceivableIndividuallyEvaluatedForImpairment	57491000	USD
CY2019Q4	us-gaap	Financing Receivable Collectively Evaluated For Impairment FinancingReceivableCollectivelyEvaluatedForImpairment	3689834000	USD
CY2019Q4	hfwa	Certain Loans Acquired In Transfer Not Accounted For As Debt Securities Carrying Amount CertainLoansAcquiredInTransferNotAccountedForAsDebtSecuritiesCarryingAmount	18113000	USD
CY2019Q4	us-gaap	Loans And Leases Receivable Gross Carrying Amount LoansAndLeasesReceivableGrossCarryingAmount	3765438000	USD
CY2017Q4	us-gaap	Loans And Leases Receivable Allowance LoansAndLeasesReceivableAllowance	32086000	USD
CY2018	us-gaap	Allowance For Loan And Lease Losses Write Offs AllowanceForLoanAndLeaseLossesWriteOffs	3605000	USD
CY2018	us-gaap	Allowance For Loan And Lease Loss Recovery Of Bad Debts AllowanceForLoanAndLeaseLossRecoveryOfBadDebts	1432000	USD
CY2018	us-gaap	Provision For Loan And Lease Losses ProvisionForLoanAndLeaseLosses	5129000	USD
CY2018Q4	us-gaap	Loans And Leases Receivable Allowance LoansAndLeasesReceivableAllowance	35042000	USD
CY2018Q4	us-gaap	Financing Receivable Allowance For Credit Losses Individually Evaluated For Impairment1 FinancingReceivableAllowanceForCreditLossesIndividuallyEvaluatedForImpairment1	4170000	USD
CY2018Q4	us-gaap	Financing Receivable Allowance For Credit Losses Collectively Evaluated For Impairment FinancingReceivableAllowanceForCreditLossesCollectivelyEvaluatedForImpairment	27854000	USD
CY2018Q4	us-gaap	Certain Loans And Debt Securities Acquired In Transfer Allowance For Credit Losses Due To Subsequent Impairment CertainLoansAndDebtSecuritiesAcquiredInTransferAllowanceForCreditLossesDueToSubsequentImpairment	3018000	USD
CY2018Q4	us-gaap	Loans And Leases Receivable Allowance LoansAndLeasesReceivableAllowance	35042000	USD
CY2018Q4	us-gaap	Financing Receivable Individually Evaluated For Impairment FinancingReceivableIndividuallyEvaluatedForImpairment	36439000	USD
CY2018Q4	us-gaap	Financing Receivable Collectively Evaluated For Impairment FinancingReceivableCollectivelyEvaluatedForImpairment	3589305000	USD
CY2018Q4	hfwa	Certain Loans Acquired In Transfer Not Accounted For As Debt Securities Carrying Amount CertainLoansAcquiredInTransferNotAccountedForAsDebtSecuritiesCarryingAmount	24907000	USD
CY2018Q4	us-gaap	Loans And Leases Receivable Gross Carrying Amount LoansAndLeasesReceivableGrossCarryingAmount	3650651000	USD
CY2016Q4	us-gaap	Loans And Leases Receivable Allowance LoansAndLeasesReceivableAllowance	31083000	USD
CY2017	us-gaap	Allowance For Loan And Lease Losses Write Offs AllowanceForLoanAndLeaseLossesWriteOffs	4838000	USD
CY2017	us-gaap	Allowance For Loan And Lease Loss Recovery Of Bad Debts AllowanceForLoanAndLeaseLossRecoveryOfBadDebts	1621000	USD
CY2017	us-gaap	Provision For Loan And Lease Losses ProvisionForLoanAndLeaseLosses	4220000	USD
CY2017Q4	us-gaap	Loans And Leases Receivable Allowance LoansAndLeasesReceivableAllowance	32086000	USD
CY2018Q4	us-gaap	Other Real Estate OtherRealEstate	1983000	USD
CY2017Q4	us-gaap	Other Real Estate OtherRealEstate	0	USD
CY2016Q4	us-gaap	Other Real Estate OtherRealEstate	754000	USD
CY2019	us-gaap	Other Real Estate Additions OtherRealEstateAdditions	0	USD
CY2018	us-gaap	Other Real Estate Additions OtherRealEstateAdditions	434000	USD
CY2017	us-gaap	Other Real Estate Additions OtherRealEstateAdditions	32000	USD
CY2019	hfwa	Noncash Or Part Noncash Acquisition Other Real Estate Owned NoncashOrPartNoncashAcquisitionOtherRealEstateOwned	0	USD
CY2018	hfwa	Noncash Or Part Noncash Acquisition Other Real Estate Owned NoncashOrPartNoncashAcquisitionOtherRealEstateOwned	1796000	USD
CY2017	hfwa	Noncash Or Part Noncash Acquisition Other Real Estate Owned NoncashOrPartNoncashAcquisitionOtherRealEstateOwned	0	USD
CY2019	us-gaap	Other Real Estate Disposals OtherRealEstateDisposals	864000	USD
CY2018	us-gaap	Other Real Estate Disposals OtherRealEstateDisposals	198000	USD
CY2017	us-gaap	Other Real Estate Disposals OtherRealEstateDisposals	930000	USD
CY2019	us-gaap	Gains Losses On Sales Of Other Real Estate GainsLossesOnSalesOfOtherRealEstate	-227000	USD
CY2018	us-gaap	Gains Losses On Sales Of Other Real Estate GainsLossesOnSalesOfOtherRealEstate	0	USD
CY2017	us-gaap	Gains Losses On Sales Of Other Real Estate GainsLossesOnSalesOfOtherRealEstate	144000	USD
CY2019	us-gaap	Other Real Estate Valuation Adjustments OtherRealEstateValuationAdjustments	-51000	USD
CY2018	us-gaap	Other Real Estate Valuation Adjustments OtherRealEstateValuationAdjustments	-49000	USD
CY2017	us-gaap	Other Real Estate Valuation Adjustments OtherRealEstateValuationAdjustments	0	USD
CY2019Q4	us-gaap	Other Real Estate OtherRealEstate	841000	USD
CY2018Q4	us-gaap	Other Real Estate OtherRealEstate	1983000	USD
CY2017Q4	us-gaap	Other Real Estate OtherRealEstate	0	USD
CY2019Q4	us-gaap	Mortgage Loans In Process Of Foreclosure Amount MortgageLoansInProcessOfForeclosureAmount	0	USD
CY2019Q4	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	121167000	USD
CY2018Q4	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	117623000	USD
CY2019Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	33279000	USD
CY2018Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	36523000	USD
CY2019Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	87888000	USD
CY2018Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	81100000	USD
CY2019	us-gaap	Depreciation Depreciation	4700000	USD
CY2018	us-gaap	Depreciation Depreciation	4400000	USD
CY2017	us-gaap	Depreciation Depreciation	3900000	USD
CY2018Q4	us-gaap	Goodwill Goodwill	240939000	USD
CY2017Q4	us-gaap	Goodwill Goodwill	119029000	USD
CY2016Q4	us-gaap	Goodwill Goodwill	119029000	USD
CY2019	us-gaap	Goodwill Acquired During Period GoodwillAcquiredDuringPeriod	0	USD
CY2018	us-gaap	Goodwill Acquired During Period GoodwillAcquiredDuringPeriod	121910000	USD
CY2017	us-gaap	Goodwill Acquired During Period GoodwillAcquiredDuringPeriod	0	USD
CY2019Q4	us-gaap	Goodwill Goodwill	240939000	USD
CY2018Q4	us-gaap	Goodwill Goodwill	240939000	USD
CY2017Q4	us-gaap	Goodwill Goodwill	119029000	USD
CY2019	us-gaap	Goodwill Impairment Loss GoodwillImpairmentLoss	0	USD
CY2018	us-gaap	Goodwill Impairment Loss GoodwillImpairmentLoss	0	USD
CY2017	us-gaap	Goodwill Impairment Loss GoodwillImpairmentLoss	0	USD
CY2018Q4	us-gaap	Intangible Assets Gross Excluding Goodwill IntangibleAssetsGrossExcludingGoodwill	20614000	USD
CY2017Q4	us-gaap	Intangible Assets Gross Excluding Goodwill IntangibleAssetsGrossExcludingGoodwill	6088000	USD
CY2016Q4	us-gaap	Intangible Assets Gross Excluding Goodwill IntangibleAssetsGrossExcludingGoodwill	7374000	USD
CY2019	hfwa	Intangible Assets Additionsdueto Acquisitions IntangibleAssetsAdditionsduetoAcquisitions	0	USD
CY2018	hfwa	Intangible Assets Additionsdueto Acquisitions IntangibleAssetsAdditionsduetoAcquisitions	18345000	USD
CY2017	hfwa	Intangible Assets Additionsdueto Acquisitions IntangibleAssetsAdditionsduetoAcquisitions	0	USD
CY2019	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	4001000	USD
CY2018	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	3819000	USD
CY2017	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	1286000	USD
CY2019Q4	us-gaap	Intangible Assets Gross Excluding Goodwill IntangibleAssetsGrossExcludingGoodwill	16613000	USD
CY2018Q4	us-gaap	Intangible Assets Gross Excluding Goodwill IntangibleAssetsGrossExcludingGoodwill	20614000	USD
CY2017Q4	us-gaap	Intangible Assets Gross Excluding Goodwill IntangibleAssetsGrossExcludingGoodwill	6088000	USD
CY2019Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Next Twelve Months FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths	3525000	USD
CY2019Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Two FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo	3111000	USD
CY2019Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Three FiniteLivedIntangibleAssetsAmortizationExpenseYearThree	2750000	USD
CY2019Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Four FiniteLivedIntangibleAssetsAmortizationExpenseYearFour	2435000	USD
CY2019Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Five FiniteLivedIntangibleAssetsAmortizationExpenseYearFive	1640000	USD
CY2019Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense After Year Five FiniteLivedIntangibleAssetsAmortizationExpenseAfterYearFive	3152000	USD
CY2019Q4	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	16613000	USD
CY2019Q4	us-gaap	Noninterest Bearing Domestic Deposit Demand NoninterestBearingDomesticDepositDemand	1446502000	USD
CY2019Q4	hfwa	Percentage Of Noninterest Bearing Domestic Deposit Demand PercentageOfNoninterestBearingDomesticDepositDemand	0.316
CY2018Q4	us-gaap	Noninterest Bearing Domestic Deposit Demand NoninterestBearingDomesticDepositDemand	1362268000	USD
CY2018Q4	hfwa	Percentage Of Noninterest Bearing Domestic Deposit Demand PercentageOfNoninterestBearingDomesticDepositDemand	0.307
CY2019Q4	us-gaap	Interest Bearing Domestic Deposit Demand InterestBearingDomesticDepositDemand	1348817000	USD
CY2019Q4	us-gaap	Percentage Of Interest Bearing Domestic Deposits To Deposits Demand PercentageOfInterestBearingDomesticDepositsToDepositsDemand	0.294
CY2018Q4	us-gaap	Interest Bearing Domestic Deposit Demand InterestBearingDomesticDepositDemand	1317513000	USD
CY2018Q4	us-gaap	Percentage Of Interest Bearing Domestic Deposits To Deposits Demand PercentageOfInterestBearingDomesticDepositsToDepositsDemand	0.297
CY2019Q4	us-gaap	Interest Bearing Domestic Deposit Money Market InterestBearingDomesticDepositMoneyMarket	753684000	USD
CY2019Q4	us-gaap	Percentage Of Interest Bearing Domestic Deposits To Deposits Money Market PercentageOfInterestBearingDomesticDepositsToDepositsMoneyMarket	0.164
CY2018Q4	us-gaap	Interest Bearing Domestic Deposit Money Market InterestBearingDomesticDepositMoneyMarket	765316000	USD
CY2018Q4	us-gaap	Percentage Of Interest Bearing Domestic Deposits To Deposits Money Market PercentageOfInterestBearingDomesticDepositsToDepositsMoneyMarket	0.173
CY2019Q4	us-gaap	Interest Bearing Domestic Deposit Savings InterestBearingDomesticDepositSavings	509095000	USD
CY2019Q4	us-gaap	Percentage Of Interest Bearing Domestic Deposits To Deposits Savings PercentageOfInterestBearingDomesticDepositsToDepositsSavings	0.112
CY2018Q4	us-gaap	Interest Bearing Domestic Deposit Savings InterestBearingDomesticDepositSavings	520413000	USD
CY2018Q4	us-gaap	Percentage Of Interest Bearing Domestic Deposits To Deposits Savings PercentageOfInterestBearingDomesticDepositsToDepositsSavings	0.118
CY2019Q4	us-gaap	Interest Bearing Domestic Deposit Time Deposits InterestBearingDomesticDepositTimeDeposits	4058098000	USD
CY2019Q4	us-gaap	Percentage Of Interest Bearing Domestic Deposits To Deposits Time Deposits PercentageOfInterestBearingDomesticDepositsToDepositsTimeDeposits	0.886
CY2018Q4	us-gaap	Interest Bearing Domestic Deposit Time Deposits InterestBearingDomesticDepositTimeDeposits	3965510000	USD
CY2018Q4	us-gaap	Percentage Of Interest Bearing Domestic Deposits To Deposits Time Deposits PercentageOfInterestBearingDomesticDepositsToDepositsTimeDeposits	0.895
CY2019Q4	us-gaap	Interest Bearing Domestic Deposit Certificates Of Deposits InterestBearingDomesticDepositCertificatesOfDeposits	524578000	USD
CY2019Q4	us-gaap	Percentage Of Interest Bearing Domestic Deposits To Deposits Certificates Of Deposit PercentageOfInterestBearingDomesticDepositsToDepositsCertificatesOfDeposit	0.114
CY2018Q4	us-gaap	Interest Bearing Domestic Deposit Certificates Of Deposits InterestBearingDomesticDepositCertificatesOfDeposits	466892000	USD
CY2018Q4	us-gaap	Percentage Of Interest Bearing Domestic Deposits To Deposits Certificates Of Deposit PercentageOfInterestBearingDomesticDepositsToDepositsCertificatesOfDeposit	0.105
CY2019Q4	us-gaap	Deposits Deposits	4582676000	USD
CY2019Q4	us-gaap	Percentage Of Interest Bearing Domestic Deposits To Deposits PercentageOfInterestBearingDomesticDepositsToDeposits	1.000
CY2018Q4	us-gaap	Deposits Deposits	4432402000	USD
CY2018Q4	us-gaap	Percentage Of Interest Bearing Domestic Deposits To Deposits PercentageOfInterestBearingDomesticDepositsToDeposits	1.000
CY2019Q4	us-gaap	Deposit Liabilities Accrued Interest DepositLiabilitiesAccruedInterest	160000	USD
CY2018Q4	us-gaap	Deposit Liabilities Accrued Interest DepositLiabilitiesAccruedInterest	144000	USD
CY2019	us-gaap	Interest Expense Demand Deposit Accounts InterestExpenseDemandDepositAccounts	3940000	USD
CY2018	us-gaap	Interest Expense Demand Deposit Accounts InterestExpenseDemandDepositAccounts	2728000	USD
CY2017	us-gaap	Interest Expense Demand Deposit Accounts InterestExpenseDemandDepositAccounts	1812000	USD
CY2019	us-gaap	Interest Expense Money Market Deposits InterestExpenseMoneyMarketDeposits	2754000	USD
CY2018	us-gaap	Interest Expense Money Market Deposits InterestExpenseMoneyMarketDeposits	1654000	USD
CY2017	us-gaap	Interest Expense Money Market Deposits InterestExpenseMoneyMarketDeposits	682000	USD
CY2019	us-gaap	Interest Expense Savings Deposits InterestExpenseSavingsDeposits	2634000	USD
CY2018	us-gaap	Interest Expense Savings Deposits InterestExpenseSavingsDeposits	2056000	USD
CY2017	us-gaap	Interest Expense Savings Deposits InterestExpenseSavingsDeposits	1311000	USD
CY2019	us-gaap	Interest Expense Domestic Deposit Liabilities Certificates Of Deposit InterestExpenseDomesticDepositLiabilitiesCertificatesOfDeposit	7021000	USD
CY2018	us-gaap	Interest Expense Domestic Deposit Liabilities Certificates Of Deposit InterestExpenseDomesticDepositLiabilitiesCertificatesOfDeposit	3959000	USD
CY2017	us-gaap	Interest Expense Domestic Deposit Liabilities Certificates Of Deposit InterestExpenseDomesticDepositLiabilitiesCertificatesOfDeposit	2244000	USD
CY2019	us-gaap	Interest Expense Deposits InterestExpenseDeposits	16349000	USD
CY2018	us-gaap	Interest Expense Deposits InterestExpenseDeposits	10397000	USD
CY2017	us-gaap	Interest Expense Deposits InterestExpenseDeposits	6049000	USD
CY2019Q4	us-gaap	Time Deposit Maturities After Next Rolling Twelve Months TimeDepositMaturitiesAfterNextRollingTwelveMonths	440996000	USD
CY2019Q4	us-gaap	Time Deposit Maturities Rolling Year Two TimeDepositMaturitiesRollingYearTwo	29151000	USD
CY2019Q4	us-gaap	Time Deposit Maturities Rolling Year Three TimeDepositMaturitiesRollingYearThree	26386000	USD
CY2019Q4	us-gaap	Time Deposit Maturities Rolling Year Four TimeDepositMaturitiesRollingYearFour	19976000	USD
CY2019Q4	us-gaap	Time Deposit Maturities Rolling Year Five TimeDepositMaturitiesRollingYearFive	8043000	USD
CY2019Q4	us-gaap	Time Deposit Maturities After Rolling Year Five TimeDepositMaturitiesAfterRollingYearFive	26000	USD
CY2019Q4	us-gaap	Interest Bearing Domestic Deposit Certificates Of Deposits InterestBearingDomesticDepositCertificatesOfDeposits	524578000	USD
CY2019Q4	hfwa	Time Deposits250000or More Domestic TimeDeposits250000orMoreDomestic	182900000	USD
CY2018Q4	hfwa	Time Deposits250000or More Domestic TimeDeposits250000orMoreDomestic	146200000	USD
CY2019Q4	us-gaap	Related Party Deposit Liabilities RelatedPartyDepositLiabilities	6900000	USD
CY2018Q4	us-gaap	Related Party Deposit Liabilities RelatedPartyDepositLiabilities	6100000	USD
CY2019Q4	us-gaap	Junior Subordinated Notes JuniorSubordinatedNotes	20600000	USD
CY2018Q4	us-gaap	Junior Subordinated Notes JuniorSubordinatedNotes	20300000	USD
CY2007Q4	us-gaap	Debt Instrument Face Amount DebtInstrumentFaceAmount	25000000.0	USD
CY2019Q4	hfwa	Adjustablerateoftrustpreferredsecurities Adjustablerateoftrustpreferredsecurities	0.0347
CY2019	us-gaap	Schedule Of Repurchase Agreements ScheduleOfRepurchaseAgreements	<div style="line-height:120%;padding-top:6px;text-align:justify;text-indent:48px;font-size:10pt;"><span style="font-family:Arial;font-size:10pt;">The following table presents the Company's </span><span style="font-family:Arial;font-size:10pt;color:#1a1a1a;">securities sold under agreement to repurchase </span><span style="font-family:Arial;font-size:10pt;">obligations by class of collateral pledged at the dates indicated:</span></div><div style="line-height:120%;padding-top:6px;text-align:center;font-size:10pt;"><div style="padding-left:0px;text-indent:0px;line-height:normal;padding-top:10px;"><table cellpadding="0" cellspacing="0" style="font-family:Times New Roman;font-size:10pt;margin-left:auto;margin-right:auto;width:100%;border-collapse:collapse;text-align:left;"><tr><td colspan="8"/></tr><tr><td style="width:59%;"/><td style="width:1%;"/><td style="width:18%;"/><td style="width:1%;"/><td style="width:1%;"/><td style="width:1%;"/><td style="width:18%;"/><td style="width:1%;"/></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"> </span></div></td><td colspan="3" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:center;font-size:9pt;"><span style="font-family:Arial;font-size:9pt;font-weight:bold;">December 31, 2019</span></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"> </span></div></td><td colspan="3" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:center;font-size:9pt;"><span style="font-family:Arial;font-size:9pt;font-weight:bold;">December 31, 2018</span></div></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"> </span></div></td><td colspan="7" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;border-top:1px solid #000000;"><div style="text-align:center;font-size:9pt;"><span style="font-family:Arial;font-size:9pt;font-weight:bold;">(In thousands)</span></div></td></tr><tr><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:10pt;"><span style="font-family:Arial;font-size:10pt;">U.S. Treasury and U.S. Government-sponsored agencies</span></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;background-color:#cceeff;"><div style="text-align:left;font-size:10pt;"><span style="font-family:Arial;font-size:10pt;">$</span></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:10pt;"><span style="font-family:Arial;font-size:10pt;"><span>—</span></span></div></td><td style="vertical-align:bottom;background-color:#cceeff;"><div style="text-align:left;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"><br/></span></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"> </span></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;background-color:#cceeff;"><div style="text-align:left;font-size:10pt;"><span style="font-family:Arial;font-size:10pt;">$</span></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:10pt;"><span style="font-family:Arial;font-size:10pt;"><span>4,878</span></span></div></td><td style="vertical-align:bottom;background-color:#cceeff;"><div style="text-align:left;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"><br/></span></div></td></tr><tr><td style="vertical-align:top;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="padding-left:24px;text-indent:-24px;font-size:10pt;"><span style="font-family:Arial;font-size:10pt;">Mortgage-backed securities and collateralized mortgage obligations </span><span style="font-family:Arial;font-size:10pt;"><sup style="vertical-align:top;line-height:120%;font-size:6pt">(1)</sup></span><span style="font-family:Arial;font-size:10pt;">:</span></div></td><td colspan="3" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"> </span></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"> </span></div></td><td colspan="3" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"> </span></div></td></tr><tr><td style="vertical-align:top;background-color:#cceeff;padding-left:28px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;padding-left:18px;text-indent:-18px;font-size:10pt;"><span style="font-family:Arial;font-size:10pt;">Residential</span></div></td><td colspan="2" style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:10pt;"><span style="font-family:Arial;font-size:10pt;"><span>8,452</span></span></div></td><td style="vertical-align:bottom;background-color:#cceeff;"><div style="text-align:left;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"><br/></span></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"> </span></div></td><td colspan="2" style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:10pt;"><span style="font-family:Arial;font-size:10pt;"><span>9,335</span></span></div></td><td style="vertical-align:bottom;background-color:#cceeff;"><div style="text-align:left;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"><br/></span></div></td></tr><tr><td style="vertical-align:top;padding-left:28px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;padding-left:18px;text-indent:-18px;font-size:10pt;"><span style="font-family:Arial;font-size:10pt;">Commercial</span></div></td><td colspan="2" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:10pt;"><span style="font-family:Arial;font-size:10pt;"><span>11,717</span></span></div></td><td style="vertical-align:bottom;"><div style="text-align:left;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"><br/></span></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"> </span></div></td><td colspan="2" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:10pt;"><span style="font-family:Arial;font-size:10pt;"><span>17,274</span></span></div></td><td style="vertical-align:bottom;"><div style="text-align:left;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"><br/></span></div></td></tr><tr><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="font-size:10pt;"><span style="font-family:Arial;font-size:10pt;">Total </span><span style="font-family:Arial;font-size:10pt;color:#1a1a1a;">securities sold under agreement to repurchase</span></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;background-color:#cceeff;border-top:1px solid #000000;"><div style="text-align:left;font-size:10pt;"><span style="font-family:Arial;font-size:10pt;">$</span></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;background-color:#cceeff;padding-top:2px;padding-bottom:2px;border-top:1px solid #000000;"><div style="text-align:right;font-size:10pt;"><span style="font-family:Arial;font-size:10pt;"><span>20,169</span></span></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;background-color:#cceeff;border-top:1px solid #000000;"><div style="text-align:left;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"><br/></span></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"> </span></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;background-color:#cceeff;border-top:1px solid #000000;"><div style="text-align:left;font-size:10pt;"><span style="font-family:Arial;font-size:10pt;">$</span></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;background-color:#cceeff;padding-top:2px;padding-bottom:2px;border-top:1px solid #000000;"><div style="text-align:right;font-size:10pt;"><span style="font-family:Arial;font-size:10pt;"><span>31,487</span></span></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;background-color:#cceeff;border-top:1px solid #000000;"><div style="text-align:left;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"><br/></span></div></td></tr></table></div></div><div style="line-height:120%;padding-left:60px;font-size:9pt;"><span style="font-family:Arial;font-size:9pt;"><sup style="vertical-align:top;line-height:120%;font-size:6pt">(1)</sup></span><span style="font-family:Arial;font-size:9pt;"> Issued and guaranteed by U.S. Government-sponsored agencies.</span></div>
CY2019Q4	us-gaap	Securities Sold Under Agreements To Repurchase SecuritiesSoldUnderAgreementsToRepurchase	20169000	USD
CY2018Q4	us-gaap	Securities Sold Under Agreements To Repurchase SecuritiesSoldUnderAgreementsToRepurchase	31487000	USD
CY2019Q4	us-gaap	Federal Home Loan Bank Advances General Debt Obligations Disclosures Maximum Amount Available FederalHomeLoanBankAdvancesGeneralDebtObligationsDisclosuresMaximumAmountAvailable	945200000	USD
CY2018Q4	us-gaap	Federal Home Loan Bank Advances Branch Of Fhlb Bank Amount Of Advances By Branch FederalHomeLoanBankAdvancesBranchOfFHLBBankAmountOfAdvancesByBranch	0	USD
CY2019	us-gaap	Federal Home Loan Bank Advances Activity For Year Average Balance Of Agreements Outstanding FederalHomeLoanBankAdvancesActivityForYearAverageBalanceOfAgreementsOutstanding	11898000	USD
CY2018	us-gaap	Federal Home Loan Bank Advances Activity For Year Average Balance Of Agreements Outstanding FederalHomeLoanBankAdvancesActivityForYearAverageBalanceOfAgreementsOutstanding	33913000	USD
CY2019Q4	us-gaap	Federal Home Loan Bank Advances Activity For Year Maximum Outstanding At Any Month End FederalHomeLoanBankAdvancesActivityForYearMaximumOutstandingAtAnyMonthEnd	90700000	USD
CY2018Q4	us-gaap	Federal Home Loan Bank Advances Activity For Year Maximum Outstanding At Any Month End FederalHomeLoanBankAdvancesActivityForYearMaximumOutstandingAtAnyMonthEnd	154500000	USD
CY2019	us-gaap	Federal Home Loan Bank Advances Activity For Year Average Interest Rate For Year FederalHomeLoanBankAdvancesActivityForYearAverageInterestRateForYear	0.0257
CY2018	us-gaap	Federal Home Loan Bank Advances Activity For Year Average Interest Rate For Year FederalHomeLoanBankAdvancesActivityForYearAverageInterestRateForYear	0.0198
CY2019	hfwa	Advance Line Maintainedto Purchase Federal Funds AdvanceLineMaintainedtoPurchaseFederalFunds	140000000.0	USD
CY2019Q4	us-gaap	Federal Funds Purchased FederalFundsPurchased	0	USD
CY2019Q4	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	23000000.0	USD
CY2019Q4	us-gaap	Operating Lease Liability OperatingLeaseLiability	24200000	USD
CY2019	us-gaap	Operating Lease Cost OperatingLeaseCost	4950000	USD
CY2019	us-gaap	Variable Lease Cost VariableLeaseCost	876000	USD
CY2019	us-gaap	Sublease Income SubleaseIncome	71000	USD
CY2019	us-gaap	Lease Cost LeaseCost	5755000	USD
CY2019	us-gaap	Operating Lease Payments OperatingLeasePayments	4858000	USD
CY2019	us-gaap	Right Of Use Asset Obtained In Exchange For Operating Lease Liability RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability	1505000	USD
CY2019Q4	us-gaap	Operating Lease Weighted Average Remaining Lease Term1 OperatingLeaseWeightedAverageRemainingLeaseTerm1	P8Y25D
CY2019Q4	us-gaap	Operating Lease Weighted Average Discount Rate Percent OperatingLeaseWeightedAverageDiscountRatePercent	0.0327
CY2019Q4	us-gaap	Lessee Operating Lease Liability Payments Remainder Of Fiscal Year LesseeOperatingLeaseLiabilityPaymentsRemainderOfFiscalYear	4842000	USD
CY2019Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Two LesseeOperatingLeaseLiabilityPaymentsDueYearTwo	3630000	USD
CY2019Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Three LesseeOperatingLeaseLiabilityPaymentsDueYearThree	3207000	USD
CY2019Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Four LesseeOperatingLeaseLiabilityPaymentsDueYearFour	3167000	USD
CY2019Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Five LesseeOperatingLeaseLiabilityPaymentsDueYearFive	2810000	USD
CY2019Q4	us-gaap	Lessee Operating Lease Liability Payments Due After Year Five LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive	10046000	USD
CY2019Q4	us-gaap	Lessee Operating Lease Liability Payments Due LesseeOperatingLeaseLiabilityPaymentsDue	27702000	USD
CY2019Q4	us-gaap	Lessee Operating Lease Liability Undiscounted Excess Amount LesseeOperatingLeaseLiabilityUndiscountedExcessAmount	3484000	USD
CY2019Q4	us-gaap	Operating Lease Liability OperatingLeaseLiability	24218000	USD
CY2019Q4	hfwa	Lessee Operating Lease Lease Not Yet Commenced Undiscounted Amount LesseeOperatingLeaseLeaseNotYetCommencedUndiscountedAmount	7700000	USD
CY2018Q4	us-gaap	Operating Leases Future Minimum Payments Due Current OperatingLeasesFutureMinimumPaymentsDueCurrent	4766000	USD
CY2018Q4	us-gaap	Operating Leases Future Minimum Payments Due In Two Years OperatingLeasesFutureMinimumPaymentsDueInTwoYears	4251000	USD
CY2018Q4	us-gaap	Operating Leases Future Minimum Payments Due In Three Years OperatingLeasesFutureMinimumPaymentsDueInThreeYears	2477000	USD
CY2018Q4	us-gaap	Operating Leases Future Minimum Payments Due In Four Years OperatingLeasesFutureMinimumPaymentsDueInFourYears	1704000	USD
CY2018Q4	us-gaap	Operating Leases Future Minimum Payments Due In Five Years OperatingLeasesFutureMinimumPaymentsDueInFiveYears	1568000	USD
CY2018Q4	us-gaap	Operating Leases Future Minimum Payments Due Thereafter OperatingLeasesFutureMinimumPaymentsDueThereafter	1788000	USD
CY2018Q4	us-gaap	Operating Leases Future Minimum Payments Due OperatingLeasesFutureMinimumPaymentsDue	16554000	USD
CY2018	us-gaap	Operating Leases Rent Expense Net OperatingLeasesRentExpenseNet	6100000	USD
CY2017	us-gaap	Operating Leases Rent Expense Net OperatingLeasesRentExpenseNet	3800000	USD
CY2019	hfwa	Percentageof Employer Contribution Fully Vested PercentageofEmployerContributionFullyVested	1
CY2018Q4	us-gaap	Deferred Compensation Arrangement With Individual Recorded Liability DeferredCompensationArrangementWithIndividualRecordedLiability	3654000	USD
CY2017Q4	us-gaap	Deferred Compensation Arrangement With Individual Recorded Liability DeferredCompensationArrangementWithIndividualRecordedLiability	2844000	USD
CY2016Q4	us-gaap	Deferred Compensation Arrangement With Individual Recorded Liability DeferredCompensationArrangementWithIndividualRecordedLiability	2192000	USD
CY2019	us-gaap	Deferred Compensation Arrangement With Individual Contributions By Employer DeferredCompensationArrangementWithIndividualContributionsByEmployer	443000	USD
CY2018	us-gaap	Deferred Compensation Arrangement With Individual Contributions By Employer DeferredCompensationArrangementWithIndividualContributionsByEmployer	713000	USD
CY2017	us-gaap	Deferred Compensation Arrangement With Individual Contributions By Employer DeferredCompensationArrangementWithIndividualContributionsByEmployer	567000	USD
CY2019	hfwa	Deferred Compensation Arrangementswithindividual Contributionbyemployer Investment Return DeferredCompensationArrangementswithindividualContributionbyemployerInvestmentReturn	147000	USD
CY2018	hfwa	Deferred Compensation Arrangementswithindividual Contributionbyemployer Investment Return DeferredCompensationArrangementswithindividualContributionbyemployerInvestmentReturn	97000	USD
CY2017	hfwa	Deferred Compensation Arrangementswithindividual Contributionbyemployer Investment Return DeferredCompensationArrangementswithindividualContributionbyemployerInvestmentReturn	85000	USD
CY2019Q4	us-gaap	Deferred Compensation Arrangement With Individual Recorded Liability DeferredCompensationArrangementWithIndividualRecordedLiability	4244000	USD
CY2018Q4	us-gaap	Deferred Compensation Arrangement With Individual Recorded Liability DeferredCompensationArrangementWithIndividualRecordedLiability	3654000	USD
CY2017Q4	us-gaap	Deferred Compensation Arrangement With Individual Recorded Liability DeferredCompensationArrangementWithIndividualRecordedLiability	2844000	USD
CY2018Q4	hfwa	Salary Continuation Plan SalaryContinuationPlan	4600000	USD
CY2017Q4	hfwa	Salary Continuation Plan SalaryContinuationPlan	0	USD
CY2019	hfwa	Salary Continuation Plan Benefit Paid SalaryContinuationPlanBenefitPaid	554000	USD
CY2018	hfwa	Salary Continuation Plan Benefit Paid SalaryContinuationPlanBenefitPaid	529000	USD
CY2019	hfwa	Salary Continuation Plan Expense SalaryContinuationPlanExpense	288000	USD
CY2018	hfwa	Salary Continuation Plan Expense SalaryContinuationPlanExpense	411000	USD
CY2019Q4	hfwa	Salary Continuation Plan SalaryContinuationPlan	4334000	USD
CY2018Q4	hfwa	Salary Continuation Plan SalaryContinuationPlan	4600000	USD
CY2019Q4	hfwa	Investmentsin Affordable Housing Limited Entities InvestmentsinAffordableHousingLimitedEntities	92700000	USD
CY2018Q4	hfwa	Investmentsin Affordable Housing Limited Entities InvestmentsinAffordableHousingLimitedEntities	50900000	USD
CY2019	us-gaap	Affordable Housing Tax Credits And Other Tax Benefits Amount AffordableHousingTaxCreditsAndOtherTaxBenefitsAmount	5700000	USD
CY2018	us-gaap	Affordable Housing Tax Credits And Other Tax Benefits Amount AffordableHousingTaxCreditsAndOtherTaxBenefitsAmount	2400000	USD
CY2017	us-gaap	Affordable Housing Tax Credits And Other Tax Benefits Amount AffordableHousingTaxCreditsAndOtherTaxBenefitsAmount	2900000	USD
CY2019	us-gaap	Amortization Method Qualified Affordable Housing Project Investments Amortization AmortizationMethodQualifiedAffordableHousingProjectInvestmentsAmortization	5000000.0	USD
CY2019Q4	us-gaap	Unused Commitments To Extend Credit UnusedCommitmentsToExtendCredit	1212359000	USD
CY2018Q4	us-gaap	Unused Commitments To Extend Credit UnusedCommitmentsToExtendCredit	990030000	USD
CY2018	us-gaap	Amortization Method Qualified Affordable Housing Project Investments Amortization AmortizationMethodQualifiedAffordableHousingProjectInvestmentsAmortization	3100000	USD
CY2017	us-gaap	Amortization Method Qualified Affordable Housing Project Investments Amortization AmortizationMethodQualifiedAffordableHousingProjectInvestmentsAmortization	2200000	USD
CY2019Q4	us-gaap	Qualified Affordable Housing Project Investments Commitment QualifiedAffordableHousingProjectInvestmentsCommitment	50700000	USD
CY2018Q4	us-gaap	Qualified Affordable Housing Project Investments Commitment QualifiedAffordableHousingProjectInvestmentsCommitment	31500000	USD
CY2019	us-gaap	Affordable Housing Project Investment Write Down Amount AffordableHousingProjectInvestmentWriteDownAmount	0	USD
CY2019Q4	hfwa	Investmentin Certified Development Entities InvestmentinCertifiedDevelopmentEntities	25400000	USD
CY2018Q4	hfwa	Investmentin Certified Development Entities InvestmentinCertifiedDevelopmentEntities	25700000	USD
CY2019	us-gaap	Income Loss From Affordable Housing Projects Equity Method Investments IncomeLossFromAffordableHousingProjectsEquityMethodInvestments	701000	USD
CY2018	us-gaap	Income Loss From Affordable Housing Projects Equity Method Investments IncomeLossFromAffordableHousingProjectsEquityMethodInvestments	708000	USD
CY2017	us-gaap	Income Loss From Affordable Housing Projects Equity Method Investments IncomeLossFromAffordableHousingProjectsEquityMethodInvestments	735000	USD
CY2019	us-gaap	Affordable Housing Project Investment Write Down Amount AffordableHousingProjectInvestmentWriteDownAmount	0	USD
CY2019	us-gaap	Undistributed Earnings Diluted UndistributedEarningsDiluted	67500000	USD
CY2018	us-gaap	Undistributed Earnings Diluted UndistributedEarningsDiluted	52834000	USD
CY2017	us-gaap	Undistributed Earnings Diluted UndistributedEarningsDiluted	41498000	USD
CY2019	hfwa	Gross Weighted Average Number Of Shares Outstanding Basic GrossWeightedAverageNumberOfSharesOutstandingBasic	36789244	shares
CY2019	us-gaap	Net Income Loss NetIncomeLoss	67557000	USD
CY2018	us-gaap	Net Income Loss NetIncomeLoss	53057000	USD
CY2017	us-gaap	Net Income Loss NetIncomeLoss	41791000	USD
CY2019	hfwa	Dividends And Undistributed Earnings DividendsAndUndistributedEarnings	57000	USD
CY2018	hfwa	Dividends And Undistributed Earnings DividendsAndUndistributedEarnings	223000	USD
CY2017	hfwa	Dividends And Undistributed Earnings DividendsAndUndistributedEarnings	293000	USD
CY2018	hfwa	Gross Weighted Average Number Of Shares Outstanding Basic GrossWeightedAverageNumberOfSharesOutstandingBasic	35281408	shares
CY2017	hfwa	Gross Weighted Average Number Of Shares Outstanding Basic GrossWeightedAverageNumberOfSharesOutstandingBasic	29937400	shares
CY2019	us-gaap	Weighted Average Number Of Shares Restricted Stock WeightedAverageNumberOfSharesRestrictedStock	31014	shares
CY2018	us-gaap	Weighted Average Number Of Shares Restricted Stock WeightedAverageNumberOfSharesRestrictedStock	87405	shares
CY2017	us-gaap	Weighted Average Number Of Shares Restricted Stock WeightedAverageNumberOfSharesRestrictedStock	179581	shares
CY2019	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	36758230	shares
CY2018	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	35194003	shares
CY2017	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	29757819	shares
CY2019	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	36758230	shares
CY2018	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	35194003	shares
CY2017	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	29757819	shares
CY2019	us-gaap	Weighted Average Number Diluted Shares Outstanding Adjustment WeightedAverageNumberDilutedSharesOutstandingAdjustment	227536	shares
CY2018	us-gaap	Weighted Average Number Diluted Shares Outstanding Adjustment WeightedAverageNumberDilutedSharesOutstandingAdjustment	177587	shares
CY2017	us-gaap	Weighted Average Number Diluted Shares Outstanding Adjustment WeightedAverageNumberDilutedSharesOutstandingAdjustment	91512	shares
CY2019	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	36985766	shares
CY2018	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	35371590	shares
CY2017	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	29849331	shares
CY2019	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	1501	shares
CY2018	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	0	shares
CY2017Q1	us-gaap	Dividends Payable Date Declared Day Month And Year DividendsPayableDateDeclaredDayMonthAndYear	2017-01-25
CY2017Q1	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.12
CY2018Q2	us-gaap	Dividends Payable Date Declared Day Month And Year DividendsPayableDateDeclaredDayMonthAndYear	2018-04-25
CY2018Q4	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.17
CY2018Q4	us-gaap	Dividends Payable Date Of Record Day Month And Year DividendsPayableDateOfRecordDayMonthAndYear	2018-11-07
CY2018Q4	us-gaap	Dividend Payable Date To Be Paid Day Month And Year DividendPayableDateToBePaidDayMonthAndYear	2018-11-21
CY2019Q1	us-gaap	Dividends Payable Date Declared Day Month And Year DividendsPayableDateDeclaredDayMonthAndYear	2019-01-23
CY2019Q1	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.18
CY2019Q1	us-gaap	Dividends Payable Date Of Record Day Month And Year DividendsPayableDateOfRecordDayMonthAndYear	2019-02-07
CY2017Q1	us-gaap	Dividends Payable Date Of Record Day Month And Year DividendsPayableDateOfRecordDayMonthAndYear	2017-02-09
CY2017Q1	us-gaap	Dividend Payable Date To Be Paid Day Month And Year DividendPayableDateToBePaidDayMonthAndYear	2017-02-23
CY2017Q2	us-gaap	Dividends Payable Date Declared Day Month And Year DividendsPayableDateDeclaredDayMonthAndYear	2017-04-25
CY2017Q2	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.13
CY2017Q2	us-gaap	Dividends Payable Date Of Record Day Month And Year DividendsPayableDateOfRecordDayMonthAndYear	2017-05-10
CY2017Q2	us-gaap	Dividend Payable Date To Be Paid Day Month And Year DividendPayableDateToBePaidDayMonthAndYear	2017-05-24
CY2017Q3	us-gaap	Dividends Payable Date Declared Day Month And Year DividendsPayableDateDeclaredDayMonthAndYear	2017-07-25
CY2017Q3	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.13
CY2017Q3	us-gaap	Dividends Payable Date Of Record Day Month And Year DividendsPayableDateOfRecordDayMonthAndYear	2017-08-10
CY2017Q3	us-gaap	Dividend Payable Date To Be Paid Day Month And Year DividendPayableDateToBePaidDayMonthAndYear	2017-08-24
CY2017Q4	us-gaap	Dividends Payable Date Declared Day Month And Year DividendsPayableDateDeclaredDayMonthAndYear	2017-10-25
CY2017Q4	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.13
CY2017Q4	us-gaap	Dividends Payable Date Of Record Day Month And Year DividendsPayableDateOfRecordDayMonthAndYear	2017-11-08
CY2017Q4	us-gaap	Dividend Payable Date To Be Paid Day Month And Year DividendPayableDateToBePaidDayMonthAndYear	2017-11-22
CY2018Q1	us-gaap	Dividends Payable Date Declared Day Month And Year DividendsPayableDateDeclaredDayMonthAndYear	2018-01-24
CY2018Q1	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.15
CY2018Q1	us-gaap	Dividends Payable Date Of Record Day Month And Year DividendsPayableDateOfRecordDayMonthAndYear	2018-02-07
CY2018Q1	us-gaap	Dividend Payable Date To Be Paid Day Month And Year DividendPayableDateToBePaidDayMonthAndYear	2018-02-21
CY2018Q2	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.15
CY2018Q2	us-gaap	Dividends Payable Date Of Record Day Month And Year DividendsPayableDateOfRecordDayMonthAndYear	2018-05-10
CY2018Q2	us-gaap	Dividend Payable Date To Be Paid Day Month And Year DividendPayableDateToBePaidDayMonthAndYear	2018-05-24
CY2018Q3	us-gaap	Dividends Payable Date Declared Day Month And Year DividendsPayableDateDeclaredDayMonthAndYear	2018-07-24
CY2018Q3	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.15
CY2018Q3	us-gaap	Dividends Payable Date Of Record Day Month And Year DividendsPayableDateOfRecordDayMonthAndYear	2018-08-09
CY2018Q3	us-gaap	Dividend Payable Date To Be Paid Day Month And Year DividendPayableDateToBePaidDayMonthAndYear	2018-08-23
CY2018Q4	us-gaap	Dividends Payable Date Declared Day Month And Year DividendsPayableDateDeclaredDayMonthAndYear	2018-10-24
CY2019Q1	us-gaap	Dividend Payable Date To Be Paid Day Month And Year DividendPayableDateToBePaidDayMonthAndYear	2019-02-21
CY2019Q2	us-gaap	Dividends Payable Date Declared Day Month And Year DividendsPayableDateDeclaredDayMonthAndYear	2019-04-24
CY2019Q2	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.18
CY2019Q2	us-gaap	Dividends Payable Date Of Record Day Month And Year DividendsPayableDateOfRecordDayMonthAndYear	2019-05-08
CY2019Q2	us-gaap	Dividend Payable Date To Be Paid Day Month And Year DividendPayableDateToBePaidDayMonthAndYear	2019-05-22
CY2019Q3	us-gaap	Dividends Payable Date Declared Day Month And Year DividendsPayableDateDeclaredDayMonthAndYear	2019-07-24
CY2019Q3	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.19
CY2019Q3	us-gaap	Dividends Payable Date Of Record Day Month And Year DividendsPayableDateOfRecordDayMonthAndYear	2019-08-08
CY2019Q3	us-gaap	Dividend Payable Date To Be Paid Day Month And Year DividendPayableDateToBePaidDayMonthAndYear	2019-08-22
CY2019Q4	us-gaap	Dividends Payable Date Declared Day Month And Year DividendsPayableDateDeclaredDayMonthAndYear	2019-10-23
CY2019Q4	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.19
CY2019Q4	us-gaap	Dividends Payable Date Of Record Day Month And Year DividendsPayableDateOfRecordDayMonthAndYear	2019-11-07
CY2019Q4	us-gaap	Dividend Payable Date To Be Paid Day Month And Year DividendPayableDateToBePaidDayMonthAndYear	2019-11-21
CY2018Q4	hfwa	Business Combination Shares Issuedin Mergerbut Forfeitedto Pay Taxes BusinessCombinationSharesIssuedinMergerbutForfeitedtoPayTaxes	26741	shares
CY2018Q4	us-gaap	Business Acquisition Share Price BusinessAcquisitionSharePrice	31.80
CY2019	hfwa	Fair Value Assets Transfers Between Level1and Level2 Transfers Amount FairValueAssetsTransfersBetweenLevel1andLevel2TransfersAmount	0	USD
CY2018	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures And Expirations In Period Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriodWeightedAverageExercisePrice	14.77
CY2018Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	12558	shares
CY2019Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Number Of Shares Available For Grant ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant	838932	shares
CY2016Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	37495	shares
CY2016Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	13.77
CY2017	us-gaap	Stock Issued During Period Shares Stock Options Exercised StockIssuedDuringPeriodSharesStockOptionsExercised	12662	shares
CY2017	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Exercises In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice	12.97
CY2017	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures And Expirations In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriod	1602	shares
CY2017	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures And Expirations In Period Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriodWeightedAverageExercisePrice	13.76
CY2017Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	23231	shares
CY2017Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	14.21
CY2018	us-gaap	Stock Issued During Period Shares Stock Options Exercised StockIssuedDuringPeriodSharesStockOptionsExercised	9842	shares
CY2018	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Exercises In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice	13.45
CY2018	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures And Expirations In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriod	831	shares
CY2018Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	14.77
CY2019	us-gaap	Stock Issued During Period Shares Stock Options Exercised StockIssuedDuringPeriodSharesStockOptionsExercised	3901	shares
CY2019	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Exercises In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice	14.77
CY2019Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Vested And Expected To Vest Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingNumber	8657	shares
CY2019Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Vested And Expected To Vest Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingWeightedAverageExercisePrice	14.77
CY2019	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Vested And Expected To Vest Outstanding Weighted Average Remaining Contractual Term1 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingWeightedAverageRemainingContractualTerm1	P0M12D
CY2019Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Vested And Expected To Vest Outstanding Aggregate Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingAggregateIntrinsicValue	117000	USD
CY2019	us-gaap	Stock Issued During Period Value Restricted Stock Award Gross StockIssuedDuringPeriodValueRestrictedStockAwardGross	1300000	USD
CY2018	us-gaap	Stock Issued During Period Value Restricted Stock Award Gross StockIssuedDuringPeriodValueRestrictedStockAwardGross	2200000	USD
CY2017	us-gaap	Stock Issued During Period Value Restricted Stock Award Gross StockIssuedDuringPeriodValueRestrictedStockAwardGross	2900000	USD
CY2019Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExercisePrice	30.06
CY2018Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExercisePrice	27.69
CY2017Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExercisePrice	24.39
CY2019Q4	us-gaap	Restricted Cash And Cash Equivalents RestrictedCashAndCashEquivalents	17100000	USD
CY2018Q4	us-gaap	Restricted Cash And Cash Equivalents RestrictedCashAndCashEquivalents	9200000	USD
CY2019	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	12504000	USD
CY2018	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	9866000	USD
CY2017	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	12171000	USD
CY2019	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	984000	USD
CY2018	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	1372000	USD
CY2017	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	6185000	USD
CY2019	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	13488000	USD
CY2018	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	11238000	USD
CY2017	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	18356000	USD
CY2019	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.21
CY2018	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.21
CY2017	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.35
CY2019	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	17020000	USD
CY2018	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	13710000	USD
CY2017	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	21051000	USD
CY2019	us-gaap	Income Tax Reconciliation Tax Exempt Income IncomeTaxReconciliationTaxExemptIncome	1745000	USD
CY2018	us-gaap	Income Tax Reconciliation Tax Exempt Income IncomeTaxReconciliationTaxExemptIncome	1879000	USD
CY2017	us-gaap	Income Tax Reconciliation Tax Exempt Income IncomeTaxReconciliationTaxExemptIncome	3212000	USD
CY2019	hfwa	Effective Income Tax Rate Reconciliation Nondeductible Expense Acquisition Costs Amount EffectiveIncomeTaxRateReconciliationNondeductibleExpenseAcquisitionCostsAmount	0	USD
CY2018	hfwa	Effective Income Tax Rate Reconciliation Nondeductible Expense Acquisition Costs Amount EffectiveIncomeTaxRateReconciliationNondeductibleExpenseAcquisitionCostsAmount	336000	USD
CY2017	hfwa	Effective Income Tax Rate Reconciliation Nondeductible Expense Acquisition Costs Amount EffectiveIncomeTaxRateReconciliationNondeductibleExpenseAcquisitionCostsAmount	210000	USD
CY2019	us-gaap	Income Tax Reconciliation Tax Credits IncomeTaxReconciliationTaxCredits	1961000	USD
CY2018	us-gaap	Income Tax Reconciliation Tax Credits IncomeTaxReconciliationTaxCredits	515000	USD
CY2017	us-gaap	Income Tax Reconciliation Tax Credits IncomeTaxReconciliationTaxCredits	1510000	USD
CY2019	hfwa	Income Tax Reconciliation Bank Owned Life Insurance Tax Fee Income IncomeTaxReconciliationBankOwnedLifeInsuranceTaxFeeIncome	368000	USD
CY2018	hfwa	Income Tax Reconciliation Bank Owned Life Insurance Tax Fee Income IncomeTaxReconciliationBankOwnedLifeInsuranceTaxFeeIncome	330000	USD
CY2017	hfwa	Income Tax Reconciliation Bank Owned Life Insurance Tax Fee Income IncomeTaxReconciliationBankOwnedLifeInsuranceTaxFeeIncome	531000	USD
CY2019	us-gaap	Income Tax Reconciliation Change In Enacted Tax Rate IncomeTaxReconciliationChangeInEnactedTaxRate	0	USD
CY2018	us-gaap	Income Tax Reconciliation Change In Enacted Tax Rate IncomeTaxReconciliationChangeInEnactedTaxRate	0	USD
CY2017	us-gaap	Income Tax Reconciliation Change In Enacted Tax Rate IncomeTaxReconciliationChangeInEnactedTaxRate	2568000	USD
CY2019	us-gaap	Income Tax Reconciliation Other Adjustments IncomeTaxReconciliationOtherAdjustments	542000	USD
CY2018	us-gaap	Income Tax Reconciliation Other Adjustments IncomeTaxReconciliationOtherAdjustments	-84000	USD
CY2017	us-gaap	Income Tax Reconciliation Other Adjustments IncomeTaxReconciliationOtherAdjustments	-220000	USD
CY2019	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	13488000	USD
CY2018	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	11238000	USD
CY2017	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	18356000	USD
CY2019Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Provision For Loan Losses DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsProvisionForLoanLosses	7389000	USD
CY2018Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Provision For Loan Losses DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsProvisionForLoanLosses	6941000	USD
CY2019Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Accrued Liabilities DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAccruedLiabilities	3058000	USD
CY2018Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Accrued Liabilities DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAccruedLiabilities	3379000	USD
CY2019Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Share Based Compensation Cost DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost	904000	USD
CY2018Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Share Based Compensation Cost DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost	769000	USD
CY2019Q4	us-gaap	Deferred Tax Assets Unrealized Losses On Availablefor Sale Securities Gross DeferredTaxAssetsUnrealizedLossesOnAvailableforSaleSecuritiesGross	0	USD
CY2018Q4	us-gaap	Deferred Tax Assets Unrealized Losses On Availablefor Sale Securities Gross DeferredTaxAssetsUnrealizedLossesOnAvailableforSaleSecuritiesGross	2070000	USD
CY2019Q4	hfwa	Deferred Tax Assets Market Discounton Loans DeferredTaxAssetsMarketDiscountonLoans	621000	USD
CY2018Q4	hfwa	Deferred Tax Assets Market Discounton Loans DeferredTaxAssetsMarketDiscountonLoans	1054000	USD
CY2019Q4	hfwa	Deferred Tax Assets Foregone Intereston Nonaccrual Loans DeferredTaxAssetsForegoneInterestonNonaccrualLoans	914000	USD
CY2018Q4	hfwa	Deferred Tax Assets Foregone Intereston Nonaccrual Loans DeferredTaxAssetsForegoneInterestonNonaccrualLoans	811000	USD
CY2019Q4	us-gaap	Deferred Tax Assets Operating Loss Carryforwards DeferredTaxAssetsOperatingLossCarryforwards	228000	USD
CY2018Q4	us-gaap	Deferred Tax Assets Operating Loss Carryforwards DeferredTaxAssetsOperatingLossCarryforwards	336000	USD
CY2019Q4	hfwa	Deferred Tax Assets Other Real Estate Owned DeferredTaxAssetsOtherRealEstateOwned	0	USD
CY2018Q4	hfwa	Deferred Tax Assets Other Real Estate Owned DeferredTaxAssetsOtherRealEstateOwned	754000	USD
CY2019Q4	hfwa	Deferred Tax Assets Rightof Use Liability DeferredTaxAssetsRightofUseLiability	5227000	USD
CY2018Q4	hfwa	Deferred Tax Assets Rightof Use Liability DeferredTaxAssetsRightofUseLiability	0	USD
CY2019Q4	us-gaap	Deferred Tax Assets Other DeferredTaxAssetsOther	134000	USD
CY2018Q4	us-gaap	Deferred Tax Assets Other DeferredTaxAssetsOther	364000	USD
CY2019Q4	us-gaap	Deferred Tax Assets Gross DeferredTaxAssetsGross	18475000	USD
CY2018Q4	us-gaap	Deferred Tax Assets Gross DeferredTaxAssetsGross	16478000	USD
CY2019Q4	hfwa	Deferred Tax Liabilities Deferred Loan Fees DeferredTaxLiabilitiesDeferredLoanFees	3328000	USD
CY2018Q4	hfwa	Deferred Tax Liabilities Deferred Loan Fees DeferredTaxLiabilitiesDeferredLoanFees	3333000	USD
CY2019Q4	us-gaap	Deferred Tax Liabilities Property Plant And Equipment DeferredTaxLiabilitiesPropertyPlantAndEquipment	2510000	USD
CY2018Q4	us-gaap	Deferred Tax Liabilities Property Plant And Equipment DeferredTaxLiabilitiesPropertyPlantAndEquipment	1819000	USD
CY2019Q4	hfwa	Deferred Tax Liabilities Fhl Band Frb Stock DeferredTaxLiabilitiesFHLBandFRBStock	569000	USD
CY2018Q4	hfwa	Deferred Tax Liabilities Fhl Band Frb Stock DeferredTaxLiabilitiesFHLBandFRBStock	569000	USD
CY2019Q4	us-gaap	Deferred Tax Liabilities Goodwill And Intangible Assets DeferredTaxLiabilitiesGoodwillAndIntangibleAssets	2807000	USD
CY2018Q4	us-gaap	Deferred Tax Liabilities Goodwill And Intangible Assets DeferredTaxLiabilitiesGoodwillAndIntangibleAssets	3526000	USD
CY2019Q4	hfwa	Deferred Tax Liabilities Tax Credits DeferredTaxLiabilitiesTaxCredits	1781000	USD
CY2018Q4	hfwa	Deferred Tax Liabilities Tax Credits DeferredTaxLiabilitiesTaxCredits	1457000	USD
CY2019Q4	hfwa	Deferred Tax Liabilities Business Combination Junior Subordinated Debentures DeferredTaxLiabilitiesBusinessCombinationJuniorSubordinatedDebentures	1113000	USD
CY2018Q4	hfwa	Deferred Tax Liabilities Business Combination Junior Subordinated Debentures DeferredTaxLiabilitiesBusinessCombinationJuniorSubordinatedDebentures	1176000	USD
CY2019Q4	us-gaap	Deferred Tax Liabilities Other DeferredTaxLiabilitiesOther	239000	USD
CY2018Q4	us-gaap	Deferred Tax Liabilities Other DeferredTaxLiabilitiesOther	540000	USD
CY2019Q4	hfwa	Deferred Tax Liabilities Rightof Use Asset DeferredTaxLiabilitiesRightofUseAsset	4956000	USD
CY2018Q4	hfwa	Deferred Tax Liabilities Rightof Use Asset DeferredTaxLiabilitiesRightofUseAsset	0	USD
CY2019Q4	hfwa	Deferred Tax Liabilities Net Unrealized Gains Chargedto Other Comprehensive Incomeon Securities DeferredTaxLiabilitiesNetUnrealizedGainsChargedtoOtherComprehensiveIncomeonSecurities	2753000	USD
CY2018Q4	hfwa	Deferred Tax Liabilities Net Unrealized Gains Chargedto Other Comprehensive Incomeon Securities DeferredTaxLiabilitiesNetUnrealizedGainsChargedtoOtherComprehensiveIncomeonSecurities	0	USD
CY2019Q4	us-gaap	Deferred Income Tax Liabilities DeferredIncomeTaxLiabilities	20056000	USD
CY2018Q4	us-gaap	Deferred Income Tax Liabilities DeferredIncomeTaxLiabilities	12420000	USD
CY2019Q4	us-gaap	Deferred Tax Liabilities DeferredTaxLiabilities	1581000	USD
CY2018Q4	us-gaap	Deferred Tax Assets Liabilities Net DeferredTaxAssetsLiabilitiesNet	4058000	USD
CY2019Q4	us-gaap	Operating Loss Carryforwards OperatingLossCarryforwards	1100000	USD
CY2018Q4	us-gaap	Operating Loss Carryforwards OperatingLossCarryforwards	1600000	USD
CY2019Q4	us-gaap	Valuation Allowances And Reserves Balance ValuationAllowancesAndReservesBalance	0	USD
CY2019Q4	us-gaap	Bad Debt Reserve For Tax Purposes Of Qualified Lender BadDebtReserveForTaxPurposesOfQualifiedLender	2800000	USD
CY2019Q4	us-gaap	Deferred Tax Liability Not Recognized Amount Of Unrecognized Deferred Tax Liability Bad Debt Reserve For Tax Purposes Of Qualified Lender DeferredTaxLiabilityNotRecognizedAmountOfUnrecognizedDeferredTaxLiabilityBadDebtReserveForTaxPurposesOfQualifiedLender	588000	USD
CY2019Q4	us-gaap	Common Equity Tier One Capital Required For Capital Adequacy CommonEquityTierOneCapitalRequiredForCapitalAdequacy	211110000	USD
CY2019Q4	hfwa	Common Equity Tier One Capital Requiredfor Capital Adequacyto Average Assets CommonEquityTierOneCapitalRequiredforCapitalAdequacytoAverageAssets	0.045
CY2019Q4	us-gaap	Common Equity Tier One Capital CommonEquityTierOneCapital	541154000	USD
CY2019Q4	hfwa	Common Equity Tier One Capitalto Average Assets CommonEquityTierOneCapitaltoAverageAssets	0.115
CY2019Q4	us-gaap	Tier One Leverage Capital Required For Capital Adequacy TierOneLeverageCapitalRequiredForCapitalAdequacy	212578000	USD
CY2019Q4	us-gaap	Tier One Leverage Capital Required For Capital Adequacy To Average Assets TierOneLeverageCapitalRequiredForCapitalAdequacyToAverageAssets	0.040
CY2019Q4	us-gaap	Tier One Leverage Capital TierOneLeverageCapital	561749000	USD
CY2019Q4	us-gaap	Tier One Leverage Capital To Average Assets TierOneLeverageCapitalToAverageAssets	0.106
CY2019Q4	us-gaap	Tier One Risk Based Capital Required For Capital Adequacy TierOneRiskBasedCapitalRequiredForCapitalAdequacy	281479000	USD
CY2019Q4	us-gaap	Tier One Risk Based Capital Required For Capital Adequacy To Risk Weighted Assets TierOneRiskBasedCapitalRequiredForCapitalAdequacyToRiskWeightedAssets	0.060
CY2019Q4	us-gaap	Tier One Risk Based Capital TierOneRiskBasedCapital	561749000	USD
CY2019Q4	us-gaap	Tier One Risk Based Capital To Risk Weighted Assets TierOneRiskBasedCapitalToRiskWeightedAssets	0.120
CY2019Q4	us-gaap	Capital Required For Capital Adequacy CapitalRequiredForCapitalAdequacy	375306000	USD
CY2019Q4	us-gaap	Capital Required For Capital Adequacy To Risk Weighted Assets CapitalRequiredForCapitalAdequacyToRiskWeightedAssets	0.080
CY2019Q4	us-gaap	Capital Capital	598226000	USD
CY2019Q4	us-gaap	Capital To Risk Weighted Assets CapitalToRiskWeightedAssets	0.128
CY2018Q4	us-gaap	Common Equity Tier One Capital Required For Capital Adequacy CommonEquityTierOneCapitalRequiredForCapitalAdequacy	197189000	USD
CY2018Q4	hfwa	Common Equity Tier One Capital Requiredfor Capital Adequacyto Average Assets CommonEquityTierOneCapitalRequiredforCapitalAdequacytoAverageAssets	0.045
CY2018Q4	us-gaap	Common Equity Tier One Capital CommonEquityTierOneCapital	510618000	USD
CY2018Q4	hfwa	Common Equity Tier One Capitalto Average Assets CommonEquityTierOneCapitaltoAverageAssets	0.117
CY2018Q4	us-gaap	Tier One Leverage Capital Required For Capital Adequacy TierOneLeverageCapitalRequiredForCapitalAdequacy	201920000	USD
CY2018Q4	us-gaap	Tier One Leverage Capital Required For Capital Adequacy To Average Assets TierOneLeverageCapitalRequiredForCapitalAdequacyToAverageAssets	0.040
CY2018Q4	us-gaap	Tier One Leverage Capital TierOneLeverageCapital	530920000	USD
CY2018Q4	us-gaap	Tier One Leverage Capital To Average Assets TierOneLeverageCapitalToAverageAssets	0.105
CY2018Q4	us-gaap	Tier One Risk Based Capital Required For Capital Adequacy TierOneRiskBasedCapitalRequiredForCapitalAdequacy	262918000	USD
CY2018Q4	us-gaap	Tier One Risk Based Capital Required For Capital Adequacy To Risk Weighted Assets TierOneRiskBasedCapitalRequiredForCapitalAdequacyToRiskWeightedAssets	0.060
CY2018Q4	us-gaap	Tier One Risk Based Capital TierOneRiskBasedCapital	530920000	USD
CY2018Q4	us-gaap	Tier One Risk Based Capital To Risk Weighted Assets TierOneRiskBasedCapitalToRiskWeightedAssets	0.121
CY2018Q4	us-gaap	Capital Required For Capital Adequacy CapitalRequiredForCapitalAdequacy	350558000	USD
CY2018Q4	us-gaap	Capital Required For Capital Adequacy To Risk Weighted Assets CapitalRequiredForCapitalAdequacyToRiskWeightedAssets	0.080
CY2018Q4	us-gaap	Capital Capital	566268000	USD
CY2018Q4	us-gaap	Capital To Risk Weighted Assets CapitalToRiskWeightedAssets	0.129
CY2019Q4	hfwa	Capital Conservation Buffer Company CapitalConservationBufferCompany	0.048
CY2019Q4	hfwa	Capital Conservation Buffer Bank CapitalConservationBufferBank	0.043
CY2019Q1	us-gaap	Interest And Dividend Income Operating InterestAndDividendIncomeOperating	53807000	USD
CY2019Q2	us-gaap	Interest And Dividend Income Operating InterestAndDividendIncomeOperating	55216000	USD
CY2019Q3	us-gaap	Interest And Dividend Income Operating InterestAndDividendIncomeOperating	54884000	USD
CY2019Q4	us-gaap	Interest And Dividend Income Operating InterestAndDividendIncomeOperating	53943000	USD
CY2019Q1	us-gaap	Interest Expense InterestExpense	4019000	USD
CY2019Q2	us-gaap	Interest Expense InterestExpense	4680000	USD
CY2019Q3	us-gaap	Interest Expense InterestExpense	4641000	USD
CY2019Q4	us-gaap	Interest Expense InterestExpense	4828000	USD
CY2019Q1	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	49788000	USD
CY2019Q2	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	50536000	USD
CY2019Q3	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	50243000	USD
CY2019Q4	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	49115000	USD
CY2019Q1	us-gaap	Provision For Loan And Lease Losses ProvisionForLoanAndLeaseLosses	920000	USD
CY2019Q2	us-gaap	Provision For Loan And Lease Losses ProvisionForLoanAndLeaseLosses	1367000	USD
CY2019Q3	us-gaap	Provision For Loan And Lease Losses ProvisionForLoanAndLeaseLosses	466000	USD
CY2019Q4	us-gaap	Provision For Loan And Lease Losses ProvisionForLoanAndLeaseLosses	1558000	USD
CY2019Q1	us-gaap	Interest Income Expense After Provision For Loan Loss InterestIncomeExpenseAfterProvisionForLoanLoss	48868000	USD
CY2019Q2	us-gaap	Interest Income Expense After Provision For Loan Loss InterestIncomeExpenseAfterProvisionForLoanLoss	49169000	USD
CY2019Q3	us-gaap	Interest Income Expense After Provision For Loan Loss InterestIncomeExpenseAfterProvisionForLoanLoss	49777000	USD
CY2019Q4	us-gaap	Interest Income Expense After Provision For Loan Loss InterestIncomeExpenseAfterProvisionForLoanLoss	47557000	USD
CY2019Q1	us-gaap	Noninterest Income NoninterestIncome	7429000	USD
CY2019Q2	us-gaap	Noninterest Income NoninterestIncome	7564000	USD
CY2019Q3	us-gaap	Noninterest Income NoninterestIncome	8458000	USD
CY2019Q4	us-gaap	Noninterest Income NoninterestIncome	9011000	USD
CY2019Q1	us-gaap	Noninterest Expense NoninterestExpense	36525000	USD
CY2019Q2	us-gaap	Noninterest Expense NoninterestExpense	37547000	USD
CY2019Q3	us-gaap	Noninterest Expense NoninterestExpense	36719000	USD
CY2019Q4	us-gaap	Noninterest Expense NoninterestExpense	35997000	USD
CY2019Q1	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	19772000	USD
CY2019Q2	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	19186000	USD
CY2019Q3	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	21516000	USD
CY2019Q4	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	20571000	USD
CY2019Q1	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	3220000	USD
CY2019Q2	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	3202000	USD
CY2019Q3	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	3621000	USD
CY2019Q4	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	3445000	USD
CY2019Q1	us-gaap	Net Income Loss NetIncomeLoss	16552000	USD
CY2019Q2	us-gaap	Net Income Loss NetIncomeLoss	15984000	USD
CY2019Q3	us-gaap	Net Income Loss NetIncomeLoss	17895000	USD
CY2019Q4	us-gaap	Net Income Loss NetIncomeLoss	17126000	USD
CY2019Q1	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.45
CY2019Q2	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.43
CY2019Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.49
CY2019Q4	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.47
CY2019Q1	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.45
CY2019Q2	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.43
CY2019Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.48
CY2019Q4	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.47
CY2019Q1	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.18
CY2019Q2	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.18
CY2019Q3	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.19
CY2019Q4	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.29
CY2018Q1	us-gaap	Interest And Dividend Income Operating InterestAndDividendIncomeOperating	43247000	USD
CY2018Q2	us-gaap	Interest And Dividend Income Operating InterestAndDividendIncomeOperating	46669000	USD
CY2018Q3	us-gaap	Interest And Dividend Income Operating InterestAndDividendIncomeOperating	54606000	USD
CY2018Q4	us-gaap	Interest And Dividend Income Operating InterestAndDividendIncomeOperating	54884000	USD
CY2018Q1	us-gaap	Interest Expense InterestExpense	2410000	USD
CY2018Q2	us-gaap	Interest Expense InterestExpense	2928000	USD
CY2018Q4	us-gaap	Interest Expense InterestExpense	3595000	USD
CY2018Q3	us-gaap	Interest Expense InterestExpense	3480000	USD
CY2018Q1	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	40837000	USD
CY2018Q2	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	43741000	USD
CY2018Q3	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	51126000	USD
CY2018Q4	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	51289000	USD
CY2018Q1	us-gaap	Provision For Loan And Lease Losses ProvisionForLoanAndLeaseLosses	1152000	USD
CY2018Q2	us-gaap	Provision For Loan And Lease Losses ProvisionForLoanAndLeaseLosses	1750000	USD
CY2018Q3	us-gaap	Provision For Loan And Lease Losses ProvisionForLoanAndLeaseLosses	1065000	USD
CY2018Q4	us-gaap	Provision For Loan And Lease Losses ProvisionForLoanAndLeaseLosses	1162000	USD
CY2018Q1	us-gaap	Interest Income Expense After Provision For Loan Loss InterestIncomeExpenseAfterProvisionForLoanLoss	39685000	USD
CY2018Q2	us-gaap	Interest Income Expense After Provision For Loan Loss InterestIncomeExpenseAfterProvisionForLoanLoss	41991000	USD
CY2018Q3	us-gaap	Interest Income Expense After Provision For Loan Loss InterestIncomeExpenseAfterProvisionForLoanLoss	50061000	USD
CY2018Q4	us-gaap	Interest Income Expense After Provision For Loan Loss InterestIncomeExpenseAfterProvisionForLoanLoss	50127000	USD
CY2018Q1	us-gaap	Noninterest Income NoninterestIncome	7548000	USD
CY2018Q2	us-gaap	Noninterest Income NoninterestIncome	7575000	USD
CY2018Q3	us-gaap	Noninterest Income NoninterestIncome	8050000	USD
CY2018Q4	us-gaap	Noninterest Income NoninterestIncome	8445000	USD
CY2018Q1	us-gaap	Noninterest Expense NoninterestExpense	36747000	USD
CY2018Q2	us-gaap	Noninterest Expense NoninterestExpense	35706000	USD
CY2018Q3	us-gaap	Noninterest Expense NoninterestExpense	39461000	USD
CY2018Q4	us-gaap	Noninterest Expense NoninterestExpense	37273000	USD
CY2018Q1	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	10486000	USD
CY2018Q2	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	13860000	USD
CY2018Q3	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	18650000	USD
CY2018Q4	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	21299000	USD
CY2018Q1	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	1399000	USD
CY2018Q2	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	2003000	USD
CY2018Q3	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	3146000	USD
CY2018Q4	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	4690000	USD
CY2018Q1	us-gaap	Net Income Loss NetIncomeLoss	9087000	USD
CY2018Q2	us-gaap	Net Income Loss NetIncomeLoss	11857000	USD
CY2018Q3	us-gaap	Net Income Loss NetIncomeLoss	15504000	USD
CY2018Q4	us-gaap	Net Income Loss NetIncomeLoss	16609000	USD
CY2018Q1	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.27
CY2018Q2	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.35
CY2018Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.42
CY2018Q4	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.45
CY2018Q1	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.27
CY2018Q2	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.35
CY2018Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.42
CY2018Q4	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.45
CY2018Q1	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.15
CY2018Q2	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.15
CY2018Q3	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.15
CY2018Q4	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.27

Files In Submission

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$HFWA
HERITAGE FINANCIAL CORP /WA/ Stock $hfwa

2018 Q4 Form 10-K Financial Statement

#000104602520000037 Filed on February 28, 2020

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$HFWA HERITAGE FINANCIAL CORP /WA/ Stock $hfwa

2018 Q4 Form 10-K Financial Statement

#000104602520000037 Filed on February 28, 2020

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$HFWA
HERITAGE FINANCIAL CORP /WA/ Stock $hfwa