$HFWA
HERITAGE FINANCIAL CORP /WA/ Stock $hfwa

$hfwa Overview Financials Valuation SEC Filings Company Website

2019 Q2 Form 10-Q Financial Statement

#000104602519000146 Filed on August 08, 2019

Income Statement

Concept	2019 Q2	2018 Q2	2018 Q1
Revenue	$55.22M	$46.67M	$43.25M
YoY Change	18.31%	29.49%	24.1%
Cost Of Revenue
YoY Change
Gross Profit
YoY Change
Gross Profit Margin
Selling, General & Admin
YoY Change
% of Gross Profit
Research & Development	$2.109M	$2.507M	$2.605M
YoY Change	-15.88%	25.22%	36.03%
% of Gross Profit
Depreciation & Amortization	$3.050M	$3.300M	$3.430M
YoY Change	-7.58%	10.74%	9.58%
% of Gross Profit
Operating Expenses	$2.109M	$2.507M	$2.605M
YoY Change	-15.88%	25.22%	36.03%
Operating Profit
YoY Change
Interest Expense	$4.680M	$2.928M	$2.410M
YoY Change	59.84%	53.54%	40.36%
% of Operating Profit
Other Income/Expense, Net
YoY Change
Pretax Income	$19.19M	$13.86M	$10.49M
YoY Change	38.43%	-12.85%	-15.47%
Income Tax	$3.202M	$2.003M	$1.399M
% Of Pretax Income	16.69%	14.45%	13.34%
Net Earnings	$15.98M	$11.86M	$9.087M
YoY Change	34.81%	0.25%	-2.46%
Net Earnings / Revenue	28.95%	25.41%	21.01%
Basic Earnings Per Share	$0.43	$0.35	$0.27
Diluted Earnings Per Share	$0.43	$0.35	$0.27
COMMON SHARES
Basic Shares Outstanding	36.87M shares	33.93M shares	33.21M shares
Diluted Shares Outstanding	37.01M shares	34.11M shares	33.35M shares

Balance Sheet

Concept	2019 Q2	2018 Q2	2018 Q1
SHORT-TERM ASSETS
Cash & Short-Term Investments
YoY Change
Cash & Equivalents	$139.3M	$129.9M	$130.3M
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	$84.30M	$75.36M	$62.15M
YoY Change	11.85%	24.36%	1.78%
Goodwill	$240.9M	$187.5M	$187.5M
YoY Change	28.47%	57.57%	57.57%
Intangibles	$18.56M	$15.77M	$16.56M
YoY Change	17.73%	134.38%	134.94%
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	$5.377B	$4.789B	$4.676B
YoY Change	12.26%	20.01%	20.35%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable
YoY Change
Accrued Expenses	$98.10M	$63.20M	$59.90M
YoY Change	55.22%	32.77%	33.11%
Deferred Revenue
YoY Change
Short-Term Debt	$23.10M	$22.20M	$26.10M
YoY Change	4.05%	4.23%	21.96%
Long-Term Debt Due
YoY Change
Total Short-Term Liabilities	$98.10M	$63.20M	$59.90M
YoY Change	55.22%	32.77%	33.11%
LONG-TERM LIABILITIES
Long-Term Debt	$20.40M	$20.20M	$20.10M
YoY Change	0.99%	1.51%	1.52%
Other Long-Term Liabilities
YoY Change
Total Long-Term Liabilities	$20.40M	$20.20M	$20.10M
YoY Change	0.99%	1.51%	1.52%
TOTAL LIABILITIES
Total Short-Term Liabilities	$98.10M	$63.20M	$59.90M
Total Long-Term Liabilities	$20.40M	$20.20M	$20.10M
Total Liabilities	$4.580B	$4.150B	$4.042B
YoY Change	10.36%	18.88%	18.99%
SHAREHOLDERS EQUITY
Retained Earnings	$195.2M	$159.8M	$153.1M
YoY Change	22.13%	15.0%	16.84%
Common Stock	$591.7M	$491.0M	$490.6M
YoY Change	20.5%	36.57%	36.53%
Preferred Stock
YoY Change
Treasury Stock (at cost)
YoY Change
Treasury Stock Shares
Shareholders Equity	$796.6M	$639.5M	$634.7M
YoY Change
Total Liabilities & Shareholders Equity	$5.377B	$4.789B	$4.676B
YoY Change	12.26%	20.01%	20.35%

Cashflow Statement

Concept	2019 Q2	2018 Q2	2018 Q1
OPERATING ACTIVITIES
Net Income	$15.98M	$11.86M	$9.087M
YoY Change	34.81%	0.25%	-2.46%
Depreciation, Depletion And Amortization	$3.050M	$3.300M	$3.430M
YoY Change	-7.58%	10.74%	9.58%
Cash From Operating Activities	$15.78M	$20.60M	$9.139M
YoY Change	-23.4%	-8.61%	-57.43%
INVESTING ACTIVITIES
Capital Expenditures	-$5.340M	-$14.51M	$2.146M
YoY Change	-63.2%	2637.74%	153.36%
Acquisitions
YoY Change
Other Investing Activities	$7.260M	-$106.2M	$88.56M
YoY Change	-106.84%	18.28%	-640.66%
Cash From Investing Activities	$1.910M	-$120.7M	$86.41M
YoY Change	-101.58%	33.66%	-601.56%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net			$1.438M
YoY Change			277.43%
Debt Paid & Issued, Net
YoY Change
Cash From Financing Activities	10.43M	99.71M	-$68.26M
YoY Change	-89.54%	13.82%	1789.26%
NET CHANGE
Cash From Operating Activities	15.78M	20.60M	$9.139M
Cash From Investing Activities	1.910M	-120.7M	$86.41M
Cash From Financing Activities	10.43M	99.71M	-$68.26M
Net Change In Cash	28.12M	-360.0K	$27.29M
YoY Change	-7911.11%	-101.81%	4253.11%
FREE CASH FLOW
Cash From Operating Activities	$15.78M	$20.60M	$9.139M
Capital Expenditures	-$5.340M	-$14.51M	$2.146M
Free Cash Flow	$21.12M	$35.11M	$6.993M
YoY Change	-39.85%	52.19%	-66.09%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value	Unit
	us-gaap	Proceeds From Sale Of Property Plant And Equipment ProceedsFromSaleOfPropertyPlantAndEquipment	21000	USD
	hfwa	Changeinlowincometaxhousingtaxcreditpartnership Changeinlowincometaxhousingtaxcreditpartnership	-2242000	USD
	hfwa	Changeinlowincometaxhousingtaxcreditpartnership Changeinlowincometaxhousingtaxcreditpartnership	-8169000	USD
	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	100324000	USD
	dei	Amendment Flag AmendmentFlag	false
CY2018Q2	hfwa	Fair Value Assets Transfers Between Level1and Level2 Transfers Amount FairValueAssetsTransfersBetweenLevel1andLevel2TransfersAmount	0	USD
CY2018Q4	us-gaap	Federal Funds Purchased FederalFundsPurchased	0	USD
	dei	Current Fiscal Year End Date CurrentFiscalYearEndDate	--12-31
	dei	Document Fiscal Period Focus DocumentFiscalPeriodFocus	Q2
	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2019
	dei	Entity Central Index Key EntityCentralIndexKey	0001046025
CY2018Q4	hfwa	Concentration Risk Percentage Greater Than Ten Percent ConcentrationRiskPercentageGreaterThanTenPercent	0	Loan
	hfwa	Fair Value Assets Transfers Between Level1and Level2 Transfers Amount FairValueAssetsTransfersBetweenLevel1andLevel2TransfersAmount	0	USD
CY2019Q2	hfwa	Fair Value Assets Transfers Between Level1and Level2 Transfers Amount FairValueAssetsTransfersBetweenLevel1andLevel2TransfersAmount	0	USD
CY2018Q2	hfwa	Number Of Securities Other Than Temporally Impaired NumberOfSecuritiesOtherThanTemporallyImpaired	0	Loan
	hfwa	Number Of Securities Other Than Temporally Impaired NumberOfSecuritiesOtherThanTemporallyImpaired	0	Loan
	hfwa	Number Of Securities Other Than Temporally Impaired NumberOfSecuritiesOtherThanTemporallyImpaired	0	Loan
	hfwa	Repurchase Agreements Maturity Period RepurchaseAgreementsMaturityPeriod	P1D
	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.30
CY2018Q4	us-gaap	Common Stock No Par Value CommonStockNoParValue	0
CY2019Q2	us-gaap	Common Stock No Par Value CommonStockNoParValue	0
CY2018Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	50000000	shares
CY2019Q2	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	50000000	shares
CY2018Q4	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	36874055	shares
CY2019Q2	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	36882771	shares
CY2018Q4	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	36874055	shares
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CY2018	us-gaap	Concentration Risk Percentage1 ConcentrationRiskPercentage1	0.1
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	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesTax	12000	USD
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	dei	Document Type DocumentType	10-Q
	dei	Document Period End Date DocumentPeriodEndDate	2019-06-30
	dei	Document Transition Report DocumentTransitionReport	false
	dei	Entity File Number EntityFileNumber	000-29480
	dei	Entity Registrant Name EntityRegistrantName	HERITAGE FINANCIAL CORP
	dei	Entity Incorporation State Country Code EntityIncorporationStateCountryCode	WA
	dei	Entity Tax Identification Number EntityTaxIdentificationNumber	91-1857900
CY2019Q2	dei	Entity Address Address Line1 EntityAddressAddressLine1	201 Fifth Avenue SW,
CY2019Q2	dei	Entity Address City Or Town EntityAddressCityOrTown	Olympia
CY2019Q2	dei	Entity Address State Or Province EntityAddressStateOrProvince	WA
CY2019Q2	dei	Entity Address Postal Zip Code EntityAddressPostalZipCode	98501
	dei	City Area Code CityAreaCode	360
	dei	Local Phone Number LocalPhoneNumber	943-1500
	dei	Security12b Title Security12bTitle	Common stock, no par value
	dei	Trading Symbol TradingSymbol	HFWA
	dei	Security Exchange Name SecurityExchangeName	NASDAQ
	dei	Entity Current Reporting Status EntityCurrentReportingStatus	Yes
	dei	Entity Interactive Data Current EntityInteractiveDataCurrent	Yes
	dei	Entity Filer Category EntityFilerCategory	Large Accelerated Filer
	dei	Entity Small Business EntitySmallBusiness	false
	dei	Entity Emerging Growth Company EntityEmergingGrowthCompany	false
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CY2018Q2	us-gaap	Gain Loss On Sales Of Loans Net GainLossOnSalesOfLoansNet	706000	USD
	us-gaap	Gain Loss On Sales Of Loans Net GainLossOnSalesOfLoansNet	620000	USD
	us-gaap	Gain Loss On Sales Of Loans Net GainLossOnSalesOfLoansNet	1580000	USD
CY2019Q2	hfwa	Interest Rate Swap Fee Income InterestRateSwapFeeIncome	161000	USD
CY2018Q2	hfwa	Interest Rate Swap Fee Income InterestRateSwapFeeIncome	309000	USD
	hfwa	Interest Rate Swap Fee Income InterestRateSwapFeeIncome	161000	USD
	hfwa	Interest Rate Swap Fee Income InterestRateSwapFeeIncome	360000	USD
CY2019Q2	us-gaap	Noninterest Income Other NoninterestIncomeOther	2157000	USD
CY2018Q2	us-gaap	Noninterest Income Other NoninterestIncomeOther	1847000	USD
	us-gaap	Noninterest Income Other NoninterestIncomeOther	4834000	USD
	us-gaap	Noninterest Income Other NoninterestIncomeOther	3892000	USD
CY2019Q2	us-gaap	Noninterest Income NoninterestIncome	7564000	USD
CY2018Q2	us-gaap	Noninterest Income NoninterestIncome	7575000	USD
	us-gaap	Noninterest Income NoninterestIncome	14993000	USD
	us-gaap	Noninterest Income NoninterestIncome	15123000	USD
CY2019Q2	us-gaap	Labor And Related Expense LaborAndRelatedExpense	21982000	USD
CY2018Q2	us-gaap	Labor And Related Expense LaborAndRelatedExpense	19321000	USD
	us-gaap	Labor And Related Expense LaborAndRelatedExpense	43896000	USD
	us-gaap	Labor And Related Expense LaborAndRelatedExpense	40688000	USD
CY2019Q2	us-gaap	Occupancy Net OccupancyNet	5451000	USD
CY2018Q2	us-gaap	Occupancy Net OccupancyNet	4810000	USD
	us-gaap	Occupancy Net OccupancyNet	10909000	USD
	us-gaap	Occupancy Net OccupancyNet	9437000	USD
CY2019Q2	us-gaap	Communications And Information Technology CommunicationsAndInformationTechnology	2109000	USD
CY2018Q2	us-gaap	Communications And Information Technology CommunicationsAndInformationTechnology	2507000	USD
	us-gaap	Communications And Information Technology CommunicationsAndInformationTechnology	4282000	USD
CY2018Q2	us-gaap	Marketing Expense MarketingExpense	823000	USD
	us-gaap	Marketing Expense MarketingExpense	2204000	USD
	us-gaap	Marketing Expense MarketingExpense	1631000	USD
CY2019Q2	us-gaap	Professional Fees ProfessionalFees	1305000	USD
CY2018Q2	us-gaap	Professional Fees ProfessionalFees	3529000	USD
	us-gaap	Professional Fees ProfessionalFees	2478000	USD
	us-gaap	Professional Fees ProfessionalFees	6366000	USD
CY2019Q2	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	809000	USD
CY2018Q2	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	716000	USD
	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	1607000	USD
	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	1404000	USD
CY2019Q2	us-gaap	Federal Deposit Insurance Corporation Premium Expense FederalDepositInsuranceCorporationPremiumExpense	426000	USD
CY2018Q2	us-gaap	Federal Deposit Insurance Corporation Premium Expense FederalDepositInsuranceCorporationPremiumExpense	375000	USD
	us-gaap	Federal Deposit Insurance Corporation Premium Expense FederalDepositInsuranceCorporationPremiumExpense	711000	USD
	us-gaap	Federal Deposit Insurance Corporation Premium Expense FederalDepositInsuranceCorporationPremiumExpense	730000	USD
CY2019Q2	us-gaap	Foreclosed Real Estate Expense ForeclosedRealEstateExpense	289000	USD
CY2018Q2	us-gaap	Foreclosed Real Estate Expense ForeclosedRealEstateExpense	0	USD
	us-gaap	Foreclosed Real Estate Expense ForeclosedRealEstateExpense	375000	USD
	us-gaap	Foreclosed Real Estate Expense ForeclosedRealEstateExpense	0	USD
CY2019Q2	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	1026000	USD
CY2018Q2	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	796000	USD
	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	2051000	USD
	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	1591000	USD
CY2019Q2	us-gaap	Other Noninterest Expense OtherNoninterestExpense	3044000	USD
CY2018Q2	us-gaap	Other Noninterest Expense OtherNoninterestExpense	2829000	USD
	us-gaap	Other Noninterest Expense OtherNoninterestExpense	5559000	USD
	us-gaap	Other Noninterest Expense OtherNoninterestExpense	5494000	USD
CY2019Q2	us-gaap	Noninterest Expense NoninterestExpense	37547000	USD
CY2018Q2	us-gaap	Noninterest Expense NoninterestExpense	35706000	USD
	us-gaap	Noninterest Expense NoninterestExpense	74072000	USD
	us-gaap	Noninterest Expense NoninterestExpense	72453000	USD
CY2019Q2	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	19186000	USD
CY2018Q2	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	13860000	USD
	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	38958000	USD
	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	24346000	USD
CY2019Q2	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	3202000	USD
CY2018Q2	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	2003000	USD
	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	6422000	USD
	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	3402000	USD
CY2019Q2	us-gaap	Net Income Loss NetIncomeLoss	15984000	USD
CY2018Q2	us-gaap	Net Income Loss NetIncomeLoss	11857000	USD
	us-gaap	Net Income Loss NetIncomeLoss	32536000	USD
	us-gaap	Net Income Loss NetIncomeLoss	20944000	USD
CY2019Q2	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax	9219000	USD
CY2019Q2	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.43
CY2018Q2	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.35
	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.88
	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.62
CY2019Q2	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.43
CY2018Q2	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.35
	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.88
	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.62
CY2019Q2	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.18
CY2018Q2	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.15
	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.36
	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.30
CY2019Q2	us-gaap	Net Income Loss NetIncomeLoss	15984000	USD
CY2018Q2	us-gaap	Net Income Loss NetIncomeLoss	11857000	USD
	us-gaap	Net Income Loss NetIncomeLoss	32536000	USD
	us-gaap	Net Income Loss NetIncomeLoss	20944000	USD
CY2018Q2	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax	-2358000	USD
	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax	17247000	USD
	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax	-9874000	USD
CY2019Q2	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetOfTax	26000	USD
CY2018Q2	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetOfTax	14000	USD
	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetOfTax	38000	USD
	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetOfTax	41000	USD
CY2019Q2	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	9193000	USD
CY2018Q2	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-2372000	USD
	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	17209000	USD
	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-9915000	USD
CY2019Q2	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	25177000	USD
CY2018Q2	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	9485000	USD
	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	49745000	USD
	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	11029000	USD
CY2019Q1	us-gaap	Stockholders Equity StockholdersEquity	778191000	USD
CY2019Q2	us-gaap	Stock Issued During Period Value Restricted Stock Award Forfeitures StockIssuedDuringPeriodValueRestrictedStockAwardForfeitures	0	USD
CY2019Q2	us-gaap	Stock Issued During Period Value Stock Options Exercised StockIssuedDuringPeriodValueStockOptionsExercised	20000	USD
CY2019Q2	us-gaap	Adjustments To Additional Paid In Capital Share Based Compensation Restricted Stock Units Requisite Service Period Recognition AdjustmentsToAdditionalPaidInCapitalShareBasedCompensationRestrictedStockUnitsRequisiteServicePeriodRecognition	795000	USD
CY2019Q2	us-gaap	Stock Repurchased And Retired During Period Value StockRepurchasedAndRetiredDuringPeriodValue	879000	USD
CY2019Q2	us-gaap	Net Income Loss NetIncomeLoss	15984000	USD
CY2019Q2	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	9193000	USD
CY2019Q2	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	6679000	USD
CY2019Q2	us-gaap	Stockholders Equity StockholdersEquity	796625000	USD
CY2018Q4	us-gaap	Stockholders Equity StockholdersEquity	760723000	USD
	us-gaap	Stock Issued During Period Value Restricted Stock Award Forfeitures StockIssuedDuringPeriodValueRestrictedStockAwardForfeitures	0	USD
	us-gaap	Stock Issued During Period Value Stock Options Exercised StockIssuedDuringPeriodValueStockOptionsExercised	42000	USD
	us-gaap	Adjustments To Additional Paid In Capital Share Based Compensation Restricted Stock Units Requisite Service Period Recognition AdjustmentsToAdditionalPaidInCapitalShareBasedCompensationRestrictedStockUnitsRequisiteServicePeriodRecognition	1536000	USD
	us-gaap	Stock Repurchased And Retired During Period Value StockRepurchasedAndRetiredDuringPeriodValue	1681000	USD
	us-gaap	Net Income Loss NetIncomeLoss	32536000	USD
	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	17209000	USD
	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	13341000	USD
CY2019Q1	us-gaap	Cumulative Effect Of New Accounting Principle In Period Of Adoption CumulativeEffectOfNewAccountingPrincipleInPeriodOfAdoption	-399000	USD
CY2019Q2	us-gaap	Stockholders Equity StockholdersEquity	796625000	USD
CY2018Q1	us-gaap	Stockholders Equity StockholdersEquity	634708000	USD
CY2018Q2	us-gaap	Stock Issued During Period Value Restricted Stock Award Forfeitures StockIssuedDuringPeriodValueRestrictedStockAwardForfeitures	0	USD
CY2018Q2	us-gaap	Stock Issued During Period Value Stock Options Exercised StockIssuedDuringPeriodValueStockOptionsExercised	26000	USD
CY2018Q2	us-gaap	Adjustments To Additional Paid In Capital Share Based Compensation Restricted Stock Units Requisite Service Period Recognition AdjustmentsToAdditionalPaidInCapitalShareBasedCompensationRestrictedStockUnitsRequisiteServicePeriodRecognition	684000	USD
CY2018Q2	us-gaap	Stock Repurchased And Retired During Period Value StockRepurchasedAndRetiredDuringPeriodValue	250000	USD
CY2018Q2	us-gaap	Net Income Loss NetIncomeLoss	11857000	USD
CY2018Q2	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-2372000	USD
CY2018Q2	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	5130000	USD
CY2018Q2	us-gaap	Stockholders Equity StockholdersEquity	639523000	USD
CY2017Q4	us-gaap	Stockholders Equity StockholdersEquity	508305000	USD
	us-gaap	Stock Issued During Period Value Restricted Stock Award Forfeitures StockIssuedDuringPeriodValueRestrictedStockAwardForfeitures	0	USD
	us-gaap	Stock Issued During Period Value Stock Options Exercised StockIssuedDuringPeriodValueStockOptionsExercised	47000	USD
	us-gaap	Adjustments To Additional Paid In Capital Share Based Compensation Restricted Stock Units Requisite Service Period Recognition AdjustmentsToAdditionalPaidInCapitalShareBasedCompensationRestrictedStockUnitsRequisiteServicePeriodRecognition	1307000	USD
	us-gaap	Stock Repurchased And Retired During Period Value StockRepurchasedAndRetiredDuringPeriodValue	1688000	USD
	us-gaap	Net Income Loss NetIncomeLoss	20944000	USD
	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-9915000	USD
	us-gaap	Stock Issued During Period Value Acquisitions StockIssuedDuringPeriodValueAcquisitions	130770000	USD
	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	10247000	USD
CY2018Q1	us-gaap	Cumulative Effect Of New Accounting Principle In Period Of Adoption CumulativeEffectOfNewAccountingPrincipleInPeriodOfAdoption	0	USD
CY2018Q2	us-gaap	Stockholders Equity StockholdersEquity	639523000	USD
	us-gaap	Net Income Loss NetIncomeLoss	32536000	USD
	us-gaap	Net Income Loss NetIncomeLoss	20944000	USD
	us-gaap	Depreciation Amortization And Accretion Net DepreciationAmortizationAndAccretionNet	4255000	USD
	us-gaap	Depreciation Amortization And Accretion Net DepreciationAmortizationAndAccretionNet	5140000	USD
	us-gaap	Amortization Of Deferred Loan Origination Fees Net AmortizationOfDeferredLoanOriginationFeesNet	-829000	USD
	us-gaap	Amortization Of Deferred Loan Origination Fees Net AmortizationOfDeferredLoanOriginationFeesNet	254000	USD
	us-gaap	Provision For Loan And Lease Losses ProvisionForLoanAndLeaseLosses	2287000	USD
	us-gaap	Provision For Loan And Lease Losses ProvisionForLoanAndLeaseLosses	2902000	USD
	hfwa	Net Change In Accrued Interest Receivable Prepaid Expenses And Other Assets Accrued Expenses And Other Liabilities NetChangeInAccruedInterestReceivablePrepaidExpensesAndOtherAssetsAccruedExpensesAndOtherLiabilities	-3645000	USD
	hfwa	Net Change In Accrued Interest Receivable Prepaid Expenses And Other Assets Accrued Expenses And Other Liabilities NetChangeInAccruedInterestReceivablePrepaidExpensesAndOtherAssetsAccruedExpensesAndOtherLiabilities	419000	USD
	us-gaap	Employee Benefits And Share Based Compensation EmployeeBenefitsAndShareBasedCompensation	1536000	USD
	us-gaap	Employee Benefits And Share Based Compensation EmployeeBenefitsAndShareBasedCompensation	1307000	USD
	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	2051000	USD
	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	1591000	USD
	us-gaap	Payments For Origination And Purchases Of Loans Held For Sale PaymentsForOriginationAndPurchasesOfLoansHeldForSale	20328000	USD
	us-gaap	Payments For Origination And Purchases Of Loans Held For Sale PaymentsForOriginationAndPurchasesOfLoansHeldForSale	40048000	USD
	us-gaap	Proceeds From Sale Of Loans Held For Sale ProceedsFromSaleOfLoansHeldForSale	18811000	USD
	us-gaap	Proceeds From Sale Of Loans Held For Sale ProceedsFromSaleOfLoansHeldForSale	39962000	USD
	us-gaap	Bank Owned Life Insurance Income BankOwnedLifeInsuranceIncome	1014000	USD
	us-gaap	Bank Owned Life Insurance Income BankOwnedLifeInsuranceIncome	666000	USD
	us-gaap	Other Real Estate Valuation Adjustments OtherRealEstateValuationAdjustments	-51000	USD
	us-gaap	Other Real Estate Valuation Adjustments OtherRealEstateValuationAdjustments	0	USD
	us-gaap	Gains Losses On Sales Of Other Real Estate GainsLossesOnSalesOfOtherRealEstate	-279000	USD
	us-gaap	Gains Losses On Sales Of Other Real Estate GainsLossesOnSalesOfOtherRealEstate	0	USD
	us-gaap	Gain Loss On Sale Of Loans And Leases GainLossOnSaleOfLoansAndLeases	620000	USD
	us-gaap	Gain Loss On Sale Of Loans And Leases GainLossOnSaleOfLoansAndLeases	1580000	USD
	us-gaap	Gain Loss On Sale Of Investments GainLossOnSaleOfInvestments	48000	USD
	us-gaap	Gain Loss On Sale Of Investments GainLossOnSaleOfInvestments	53000	USD
	us-gaap	Asset Impairment Charges AssetImpairmentCharges	0	USD
	us-gaap	Asset Impairment Charges AssetImpairmentCharges	75000	USD
	us-gaap	Impairment Of Long Lived Assets To Be Disposed Of ImpairmentOfLongLivedAssetsToBeDisposedOf	117000	USD
	us-gaap	Impairment Of Long Lived Assets To Be Disposed Of ImpairmentOfLongLivedAssetsToBeDisposedOf	0	USD
	us-gaap	Gain Loss On Sale Of Property Plant Equipment GainLossOnSaleOfPropertyPlantEquipment	10000	USD
	us-gaap	Gain Loss On Sale Of Property Plant Equipment GainLossOnSaleOfPropertyPlantEquipment	0	USD
	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	37087000	USD
	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	29739000	USD
	us-gaap	Payments For Proceeds From Loans And Leases PaymentsForProceedsFromLoansAndLeases	65972000	USD
	us-gaap	Payments For Proceeds From Loans And Leases PaymentsForProceedsFromLoansAndLeases	96127000	USD
	us-gaap	Proceeds From Maturities Prepayments And Calls Of Available For Sale Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities	105400000	USD
	us-gaap	Proceeds From Maturities Prepayments And Calls Of Available For Sale Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities	41436000	USD
	us-gaap	Payments To Acquire Available For Sale Securities PaymentsToAcquireAvailableForSaleSecurities	104324000	USD
	us-gaap	Payments To Acquire Available For Sale Securities PaymentsToAcquireAvailableForSaleSecurities	147360000	USD
	us-gaap	Proceeds From Sale Of Available For Sale Securities ProceedsFromSaleOfAvailableForSaleSecurities	34479000	USD
	us-gaap	Proceeds From Sale Of Available For Sale Securities ProceedsFromSaleOfAvailableForSaleSecurities	107579000	USD
	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	6374000	USD
	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	16659000	USD
	us-gaap	Proceeds From Sales Of Assets Investing Activities ProceedsFromSalesOfAssetsInvestingActivities	54000	USD
	us-gaap	Proceeds From Sales Of Assets Investing Activities ProceedsFromSalesOfAssetsInvestingActivities	4532000	USD
	us-gaap	Proceeds From Sale Of Foreclosed Assets ProceedsFromSaleOfForeclosedAssets	429000	USD
	us-gaap	Proceeds From Sale Of Foreclosed Assets ProceedsFromSaleOfForeclosedAssets	0	USD
	us-gaap	Payments For Proceeds From Federal Home Loan Bank Stock PaymentsForProceedsFromFederalHomeLoanBankStock	-12684000	USD
	us-gaap	Payments For Proceeds From Federal Home Loan Bank Stock PaymentsForProceedsFromFederalHomeLoanBankStock	-22138000	USD
	us-gaap	Payments To Acquire Federal Home Loan Bank Stock PaymentsToAcquireFederalHomeLoanBankStock	16613000	USD
	us-gaap	Payments To Acquire Federal Home Loan Bank Stock PaymentsToAcquireFederalHomeLoanBankStock	21784000	USD
	us-gaap	Proceeds From Sale Of Property Plant And Equipment ProceedsFromSaleOfPropertyPlantAndEquipment	31000	USD
	us-gaap	Cash Acquired From Acquisition CashAcquiredFromAcquisition	0	USD
	us-gaap	Cash Acquired From Acquisition CashAcquiredFromAcquisition	80133000	USD
	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-42448000	USD
	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-34260000	USD
	us-gaap	Increase Decrease In Deposits IncreaseDecreaseInDeposits	-84694000	USD
	us-gaap	Increase Decrease In Deposits IncreaseDecreaseInDeposits	69990000	USD
	us-gaap	Increase Decrease In Loans To Federal Home Loan Banks IncreaseDecreaseInLoansToFederalHomeLoanBanks	-402800000	USD
	us-gaap	Increase Decrease In Loans To Federal Home Loan Banks IncreaseDecreaseInLoansToFederalHomeLoanBanks	-536450000	USD
	us-gaap	Repayments Of Debt RepaymentsOfDebt	312100000	USD
	us-gaap	Repayments Of Debt RepaymentsOfDebt	553450000	USD
	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	13280000	USD
	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	10247000	USD
	us-gaap	Increase Decrease In Receivables Under Repurchase Agreements IncreaseDecreaseInReceivablesUnderRepurchaseAgreements	8346000	USD
	us-gaap	Increase Decrease In Receivables Under Repurchase Agreements IncreaseDecreaseInReceivablesUnderRepurchaseAgreements	9653000	USD
	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	42000	USD
	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	47000	USD
	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	1681000	USD
	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	1688000	USD
	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-17259000	USD
	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	31449000	USD
	us-gaap	Cash And Cash Equivalents Period Increase Decrease CashAndCashEquivalentsPeriodIncreaseDecrease	-22620000	USD
	us-gaap	Cash And Cash Equivalents Period Increase Decrease CashAndCashEquivalentsPeriodIncreaseDecrease	26928000	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
CY2019Q2	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	139290000	USD
CY2018Q2	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	129943000	USD
	us-gaap	Interest Paid Net InterestPaidNet	8535000	USD
	us-gaap	Interest Paid Net InterestPaidNet	5156000	USD
	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	5545000	USD
	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	2724000	USD
	us-gaap	Transfer To Other Real Estate TransferToOtherRealEstate	0	USD
	us-gaap	Transfer To Other Real Estate TransferToOtherRealEstate	434000	USD
	hfwa	Transferof Propertyand Equipmentto Prepaid Expensesand Other Assets Heldforsale TransferofPropertyandEquipmenttoPrepaidExpensesandOtherAssetsHeldforsale	763000	USD
	hfwa	Transferof Propertyand Equipmentto Prepaid Expensesand Other Assets Heldforsale TransferofPropertyandEquipmenttoPrepaidExpensesandOtherAssetsHeldforsale	221000	USD
	hfwa	Transferof Bank Owned Life Insurance To Prepaid Expenses And Other Assets TransferofBankOwnedLifeInsuranceToPrepaidExpensesAndOtherAssets	209000	USD
	hfwa	Transferof Bank Owned Life Insurance To Prepaid Expenses And Other Assets TransferofBankOwnedLifeInsuranceToPrepaidExpensesAndOtherAssets	0	USD
	us-gaap	Stock Issued During Period Value Acquisitions StockIssuedDuringPeriodValueAcquisitions	0	USD
	us-gaap	Stock Issued During Period Value Acquisitions StockIssuedDuringPeriodValueAcquisitions	130770000	USD
	hfwa	Noncash Or Part Noncash Acquisition Investment Available For Sale NoncashOrPartNoncashAcquisitionInvestmentAvailableForSale	0	USD
	hfwa	Noncash Or Part Noncash Acquisition Investment Available For Sale NoncashOrPartNoncashAcquisitionInvestmentAvailableForSale	80353000	USD
	hfwa	Noncash Or Part Noncash Acquisition Purchased Non Covered Loans Receivable NoncashOrPartNoncashAcquisitionPurchasedNonCoveredLoansReceivable	0	USD
	hfwa	Noncash Or Part Noncash Acquisition Purchased Non Covered Loans Receivable NoncashOrPartNoncashAcquisitionPurchasedNonCoveredLoansReceivable	388462000	USD
	us-gaap	Noncash Or Part Noncash Acquisition Fixed Assets Acquired1 NoncashOrPartNoncashAcquisitionFixedAssetsAcquired1	0	USD
	us-gaap	Noncash Or Part Noncash Acquisition Fixed Assets Acquired1 NoncashOrPartNoncashAcquisitionFixedAssetsAcquired1	732000	USD
	hfwa	Noncash Or Part Noncash Acquisition Accounts Fhlb Stock Acquired NoncashOrPartNoncashAcquisitionAccountsFhlbStockAcquired	0	USD
	hfwa	Noncash Or Part Noncash Acquisition Accounts Fhlb Stock Acquired NoncashOrPartNoncashAcquisitionAccountsFhlbStockAcquired	623000	USD
	us-gaap	Noncash Or Part Noncash Acquisition Accounts Receivable Acquired1 NoncashOrPartNoncashAcquisitionAccountsReceivableAcquired1	0	USD
	us-gaap	Noncash Or Part Noncash Acquisition Accounts Receivable Acquired1 NoncashOrPartNoncashAcquisitionAccountsReceivableAcquired1	1448000	USD
	hfwa	Noncashor Part Noncash Bank Owned Life Insuranceacquired NoncashorPartNoncashBankOwnedLifeInsuranceacquired	0	USD
	hfwa	Noncashor Part Noncash Bank Owned Life Insuranceacquired NoncashorPartNoncashBankOwnedLifeInsuranceacquired	6264000	USD
	us-gaap	Noncash Or Part Noncash Acquisition Other Assets Acquired1 NoncashOrPartNoncashAcquisitionOtherAssetsAcquired1	0	USD
	us-gaap	Noncash Or Part Noncash Acquisition Other Assets Acquired1 NoncashOrPartNoncashAcquisitionOtherAssetsAcquired1	1354000	USD
	us-gaap	Noncash Or Part Noncash Acquisition Intangible Assets Acquired1 NoncashOrPartNoncashAcquisitionIntangibleAssetsAcquired1	0	USD
	us-gaap	Noncash Or Part Noncash Acquisition Intangible Assets Acquired1 NoncashOrPartNoncashAcquisitionIntangibleAssetsAcquired1	11270000	USD
	hfwa	Noncash Or Part Noncash Acquisition Deposits Liability NoncashOrPartNoncashAcquisitionDepositsLiability	0	USD
	hfwa	Noncash Or Part Noncash Acquisition Deposits Liability NoncashOrPartNoncashAcquisitionDepositsLiability	505885000	USD
	us-gaap	Noncash Or Part Noncash Acquisition Other Liabilities Assumed1 NoncashOrPartNoncashAcquisitionOtherLiabilitiesAssumed1	0	USD
	us-gaap	Noncash Or Part Noncash Acquisition Other Liabilities Assumed1 NoncashOrPartNoncashAcquisitionOtherLiabilitiesAssumed1	2504000	USD
	us-gaap	Nature Of Operations NatureOfOperations	Description of Business<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;">Heritage is a bank holding company that was incorporated in the State of Washington in August 1997. The Company is primarily engaged in the business of planning, directing and coordinating the business activities of its wholly-owned subsidiary, the Bank. The Bank is a Washington-chartered commercial bank and its deposits are insured by the FDIC. The Bank is headquartered in Olympia, Washington and conducts business from its </span><span style="font-family:inherit;font-size:10pt;"><span>62</span></span><span style="font-family:Arial;font-size:10pt;"> branch offices as of </span><span style="font-family:Arial;font-size:10pt;">June 30, 2019</span><span style="font-family:Arial;font-size:10pt;"> located throughout Washington State and the greater Portland, Oregon area. The Bank’s business consists primarily of commercial lending and deposit relationships with small businesses and their owners in its market areas and attracting deposits from the general public. The Bank also makes real estate construction and land development loans, consumer loans and originates first mortgage loans on residential properties primarily located in its market areas.</span></div><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;">Effective January 16, 2018, the Company completed the Puget Sound Merger and on July 2, 2018, the Company completed the Premier Merger. See Note (2) Business Combinations for additional information on the Premier and Puget Mergers.</span></div><div style="line-height:120%;padding-top:6px;text-align:justify;font-size:10pt;"><span style="font-family:Arial;font-size:10pt;"><br/></span></div>
CY2019Q2	hfwa	Capitalization Threshold Policy Contractual Lease Payments CapitalizationThresholdPolicyContractualLeasePayments	25000	USD
CY2019Q1	us-gaap	Cumulative Effect Of New Accounting Principle In Period Of Adoption CumulativeEffectOfNewAccountingPrincipleInPeriodOfAdoption	-399000	USD
CY2019Q2	us-gaap	Available For Sale Debt Securities Amortized Cost Basis AvailableForSaleDebtSecuritiesAmortizedCostBasis	948319000	USD
CY2019Q2	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Gain Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax	14281000	USD
CY2019Q2	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Loss Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax	1920000	USD
CY2019Q2	us-gaap	Available For Sale Securities Debt Securities AvailableForSaleSecuritiesDebtSecurities	960680000	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
CY2019Q2	us-gaap	Trading Securities TradingSecurities	0	USD
CY2019Q2	us-gaap	Available For Sale Securities Debt Maturities Within One Year Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearAmortizedCost	33196000	USD
CY2019Q2	us-gaap	Available For Sale Securities Debt Maturities Within One Year Fair Value AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearFairValue	33253000	USD
CY2019Q2	us-gaap	Available For Sale Securities Debt Maturities After One Through Five Years Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsAmortizedCost	182529000	USD
CY2019Q2	us-gaap	Available For Sale Securities Debt Maturities After One Through Five Years Fair Value AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsFairValue	184643000	USD
CY2019Q2	us-gaap	Available For Sale Securities Debt Maturities After Five Through Ten Years Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsAmortizedCost	283379000	USD
CY2019Q2	us-gaap	Available For Sale Securities Debt Maturities After Five Through Ten Years Fair Value AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsFairValue	288386000	USD
CY2019Q2	us-gaap	Available For Sale Securities Debt Maturities After Ten Years Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesAfterTenYearsAmortizedCost	449215000	USD
CY2019Q2	us-gaap	Available For Sale Securities Debt Maturities After Ten Years Fair Value AvailableForSaleSecuritiesDebtMaturitiesAfterTenYearsFairValue	454398000	USD
CY2019Q2	us-gaap	Available For Sale Debt Securities Amortized Cost Basis AvailableForSaleDebtSecuritiesAmortizedCostBasis	948319000	USD
CY2019Q2	us-gaap	Available For Sale Securities Debt Securities AvailableForSaleSecuritiesDebtSecurities	960680000	USD
CY2019Q2	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position Less Than12 Months DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12Months	46060000	USD
CY2019Q2	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position Less Than12 Months Accumulated Loss DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss	323000	USD
CY2019Q2	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position12 Months Or Longer DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLonger	176114000	USD
CY2019Q2	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position12 Months Or Longer Accumulated Loss DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss	1597000	USD
CY2019Q2	us-gaap	Debt Securities Available For Sale Unrealized Loss Position DebtSecuritiesAvailableForSaleUnrealizedLossPosition	222174000	USD
CY2019Q2	us-gaap	Debt Securities Available For Sale Unrealized Loss Position Accumulated Loss DebtSecuritiesAvailableForSaleUnrealizedLossPositionAccumulatedLoss	1920000	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
CY2019Q2	hfwa	Number Of Securities Other Than Temporally Impaired NumberOfSecuritiesOtherThanTemporallyImpaired	0	Loan
CY2019Q2	us-gaap	Debt Securities Available For Sale Realized Gain DebtSecuritiesAvailableForSaleRealizedGain	187000	USD
CY2018Q2	us-gaap	Debt Securities Available For Sale Realized Gain DebtSecuritiesAvailableForSaleRealizedGain	18000	USD
	us-gaap	Debt Securities Available For Sale Realized Gain DebtSecuritiesAvailableForSaleRealizedGain	276000	USD
	us-gaap	Debt Securities Available For Sale Realized Gain DebtSecuritiesAvailableForSaleRealizedGain	122000	USD
CY2019Q2	us-gaap	Debt Securities Available For Sale Realized Loss DebtSecuritiesAvailableForSaleRealizedLoss	154000	USD
CY2018Q2	us-gaap	Debt Securities Available For Sale Realized Loss DebtSecuritiesAvailableForSaleRealizedLoss	0	USD
	us-gaap	Debt Securities Available For Sale Realized Loss DebtSecuritiesAvailableForSaleRealizedLoss	228000	USD
	us-gaap	Debt Securities Available For Sale Realized Loss DebtSecuritiesAvailableForSaleRealizedLoss	69000	USD
CY2019Q2	us-gaap	Debt Securities Available For Sale Realized Gain Loss DebtSecuritiesAvailableForSaleRealizedGainLoss	33000	USD
CY2018Q2	us-gaap	Debt Securities Available For Sale Realized Gain Loss DebtSecuritiesAvailableForSaleRealizedGainLoss	18000	USD
	us-gaap	Debt Securities Available For Sale Realized Gain Loss DebtSecuritiesAvailableForSaleRealizedGainLoss	48000	USD
	us-gaap	Debt Securities Available For Sale Realized Gain Loss DebtSecuritiesAvailableForSaleRealizedGainLoss	53000	USD
CY2019Q2	us-gaap	Deposit Liabilities Collateral Issued Financial Instruments DepositLiabilitiesCollateralIssuedFinancialInstruments	247056000	USD
CY2019Q2	us-gaap	Pledged Assets Separately Reported Securities Pledged As Collateral At Fair Value PledgedAssetsSeparatelyReportedSecuritiesPledgedAsCollateralAtFairValue	249958000	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
	hfwa	Number Of Loan Segments NumberOfLoanSegments	4	segment
CY2019Q2	us-gaap	Loans And Leases Receivable Gross Carrying Amount LoansAndLeasesReceivableGrossCarryingAmount	3715603000	USD
CY2018Q4	us-gaap	Loans And Leases Receivable Gross Carrying Amount LoansAndLeasesReceivableGrossCarryingAmount	3650651000	USD
CY2019Q2	us-gaap	Loans And Leases Receivable Allowance LoansAndLeasesReceivableAllowance	36363000	USD
CY2018Q4	us-gaap	Loans And Leases Receivable Allowance LoansAndLeasesReceivableAllowance	35042000	USD
CY2018Q4	us-gaap	Financing Receivable Recorded Investment Nonaccrual Status FinancingReceivableRecordedInvestmentNonaccrualStatus	13703000	USD
CY2019Q2	us-gaap	Unamortized Loan Commitment And Origination Fees And Unamortized Discounts Or Premiums UnamortizedLoanCommitmentAndOriginationFeesAndUnamortizedDiscountsOrPremiums	2680000	USD
CY2018Q4	us-gaap	Unamortized Loan Commitment And Origination Fees And Unamortized Discounts Or Premiums UnamortizedLoanCommitmentAndOriginationFeesAndUnamortizedDiscountsOrPremiums	3509000	USD
CY2019Q2	us-gaap	Loans And Leases Receivable Net Of Deferred Income LoansAndLeasesReceivableNetOfDeferredIncome	3718283000	USD
CY2018Q4	us-gaap	Loans And Leases Receivable Net Of Deferred Income LoansAndLeasesReceivableNetOfDeferredIncome	3654160000	USD
CY2019Q2	us-gaap	Loans And Leases Receivable Net Reported Amount LoansAndLeasesReceivableNetReportedAmount	3681920000	USD
CY2018Q4	us-gaap	Loans And Leases Receivable Net Reported Amount LoansAndLeasesReceivableNetReportedAmount	3619118000	USD
CY2019Q2	hfwa	Concentration Risk Percentage Greater Than Ten Percent ConcentrationRiskPercentageGreaterThanTenPercent	0
	us-gaap	Concentration Risk Percentage1 ConcentrationRiskPercentage1	0.10
CY2019Q2	hfwa	Financing Receivables Pass Rated FinancingReceivablesPassRated	3561145000	USD
CY2019Q2	hfwa	Financing Receivables Oaem Rated FinancingReceivablesOaemRated	64667000	USD
CY2019Q2	hfwa	Financing Receivables Substandard Rated FinancingReceivablesSubstandardRated	89267000	USD
CY2019Q2	hfwa	Financing Receivables Doubtful Rated FinancingReceivablesDoubtfulRated	524000	USD
CY2019Q2	us-gaap	Loans And Leases Receivable Gross Carrying Amount LoansAndLeasesReceivableGrossCarryingAmount	3715603000	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
CY2019Q2	hfwa	Potential Problem Loans Receivable PotentialProblemLoansReceivable	114100000	USD
CY2018Q4	hfwa	Potential Problem Loans Receivable PotentialProblemLoansReceivable	101300000	USD
CY2019Q2	us-gaap	Financing Receivable Recorded Investment Nonaccrual Status FinancingReceivableRecordedInvestmentNonaccrualStatus	19293000	USD
CY2019Q2	us-gaap	Financing Receivable Recorded Investment Past Due FinancingReceivableRecordedInvestmentPastDue	10352000	USD
CY2019Q2	us-gaap	Financing Receivable Recorded Investment Current FinancingReceivableRecordedInvestmentCurrent	3705251000	USD
CY2019Q2	hfwa	Gross Loanand Lease Receivablenetof Pci Loans GrossLoanandLeaseReceivablenetofPCILoans	3715603000	USD
CY2018Q4	us-gaap	Financing Receivable Recorded Investment Past Due FinancingReceivableRecordedInvestmentPastDue	16934000	USD
CY2018Q4	us-gaap	Financing Receivable Recorded Investment Current FinancingReceivableRecordedInvestmentCurrent	3633717000	USD
CY2019Q2	hfwa	Allowancefor Loan Losseson Financing Receivable Modifications Non Accruing Recorded Investment AllowanceforLoanLossesonFinancingReceivableModificationsNonAccruingRecordedInvestment	981000	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
CY2019Q2	us-gaap	Loans And Leases Receivable Impaired Commitment To Lend LoansAndLeasesReceivableImpairedCommitmentToLend	1700000	USD
CY2018Q4	us-gaap	Loans And Leases Receivable Impaired Commitment To Lend LoansAndLeasesReceivableImpairedCommitmentToLend	943000	USD
CY2018Q4	hfwa	Gross Loanand Lease Receivablenetof Pci Loans GrossLoanandLeaseReceivablenetofPCILoans	3650651000	USD
CY2019Q2	us-gaap	Financing Receivable Recorded Investment90 Days Past Due And Still Accruing FinancingReceivableRecordedInvestment90DaysPastDueAndStillAccruing	0	USD
CY2019Q2	us-gaap	Impaired Financing Receivable With No Related Allowance Recorded Investment ImpairedFinancingReceivableWithNoRelatedAllowanceRecordedInvestment	11324000	USD
CY2019Q2	us-gaap	Impaired Financing Receivable With Related Allowance Recorded Investment ImpairedFinancingReceivableWithRelatedAllowanceRecordedInvestment	33894000	USD
CY2019Q2	us-gaap	Impaired Financing Receivable Recorded Investment ImpairedFinancingReceivableRecordedInvestment	45218000	USD
CY2019Q2	us-gaap	Impaired Financing Receivable Unpaid Principal Balance ImpairedFinancingReceivableUnpaidPrincipalBalance	47151000	USD
CY2019Q2	us-gaap	Impaired Financing Receivable Related Allowance ImpairedFinancingReceivableRelatedAllowance	5373000	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
CY2019Q2	us-gaap	Impaired Financing Receivable Average Recorded Investment ImpairedFinancingReceivableAverageRecordedInvestment	41332000	USD
CY2018Q2	us-gaap	Impaired Financing Receivable Average Recorded Investment ImpairedFinancingReceivableAverageRecordedInvestment	42158000	USD
	us-gaap	Impaired Financing Receivable Average Recorded Investment ImpairedFinancingReceivableAverageRecordedInvestment	39701000	USD
	us-gaap	Impaired Financing Receivable Average Recorded Investment ImpairedFinancingReceivableAverageRecordedInvestment	40592000	USD
CY2019Q2	hfwa	Financing Receivable Modifications Accruing Recorded Investment FinancingReceivableModificationsAccruingRecordedInvestment	25925000	USD
CY2019Q2	hfwa	Financing Receivable Modifications Non Accruing Recorded Investment FinancingReceivableModificationsNonAccruingRecordedInvestment	8090000	USD
CY2018Q4	hfwa	Financing Receivable Modifications Accruing Recorded Investment FinancingReceivableModificationsAccruingRecordedInvestment	22736000	USD
CY2018Q4	hfwa	Financing Receivable Modifications Non Accruing Recorded Investment FinancingReceivableModificationsNonAccruingRecordedInvestment	6943000	USD
CY2019Q2	hfwa	Allowancefor Loan Losseson Financing Receivable Modifications Accruing Recorded Investment AllowanceforLoanLossesonFinancingReceivableModificationsAccruingRecordedInvestment	2887000	USD
CY2019Q2	us-gaap	Financing Receivable Modifications Number Of Contracts2 FinancingReceivableModificationsNumberOfContracts2	12	contract
	us-gaap	Financing Receivable Modifications Number Of Contracts2 FinancingReceivableModificationsNumberOfContracts2	20	contract
CY2018Q2	us-gaap	Financing Receivable Modifications Number Of Contracts2 FinancingReceivableModificationsNumberOfContracts2	10	contract
	us-gaap	Financing Receivable Modifications Number Of Contracts2 FinancingReceivableModificationsNumberOfContracts2	23	contract
CY2019Q2	us-gaap	Certain Loans Acquired In Transfer Not Accounted For As Debt Securities Outstanding Balance CertainLoansAcquiredInTransferNotAccountedForAsDebtSecuritiesOutstandingBalance	24761000	USD
CY2019Q2	hfwa	Certain Loans Acquired In Transfer Not Accounted For As Debt Securities Carrying Amount CertainLoansAcquiredInTransferNotAccountedForAsDebtSecuritiesCarryingAmount	22353000	USD
CY2018Q4	us-gaap	Certain Loans Acquired In Transfer Not Accounted For As Debt Securities Outstanding Balance CertainLoansAcquiredInTransferNotAccountedForAsDebtSecuritiesOutstandingBalance	28461000	USD
CY2018Q4	hfwa	Certain Loans Acquired In Transfer Not Accounted For As Debt Securities Carrying Amount CertainLoansAcquiredInTransferNotAccountedForAsDebtSecuritiesCarryingAmount	24907000	USD
CY2019Q1	us-gaap	Loans And Leases Receivable Allowance LoansAndLeasesReceivableAllowance	36152000	USD
CY2019Q2	us-gaap	Allowance For Loan And Lease Losses Write Offs AllowanceForLoanAndLeaseLossesWriteOffs	1355000	USD
CY2019Q2	us-gaap	Allowance For Loan And Lease Loss Recovery Of Bad Debts AllowanceForLoanAndLeaseLossRecoveryOfBadDebts	199000	USD
CY2019Q2	us-gaap	Provision For Loan And Lease Losses ProvisionForLoanAndLeaseLosses	1367000	USD
CY2019Q2	us-gaap	Loans And Leases Receivable Allowance LoansAndLeasesReceivableAllowance	36363000	USD
CY2018Q4	us-gaap	Loans And Leases Receivable Allowance LoansAndLeasesReceivableAllowance	35042000	USD
	us-gaap	Allowance For Loan And Lease Losses Write Offs AllowanceForLoanAndLeaseLossesWriteOffs	2059000	USD
	us-gaap	Allowance For Loan And Lease Loss Recovery Of Bad Debts AllowanceForLoanAndLeaseLossRecoveryOfBadDebts	1093000	USD
	us-gaap	Provision For Loan And Lease Losses ProvisionForLoanAndLeaseLosses	2287000	USD
CY2019Q2	us-gaap	Loans And Leases Receivable Allowance LoansAndLeasesReceivableAllowance	36363000	USD
CY2019Q2	us-gaap	Financing Receivable Allowance For Credit Losses Individually Evaluated For Impairment1 FinancingReceivableAllowanceForCreditLossesIndividuallyEvaluatedForImpairment1	5373000	USD
CY2019Q2	us-gaap	Financing Receivable Allowance For Credit Losses Collectively Evaluated For Impairment FinancingReceivableAllowanceForCreditLossesCollectivelyEvaluatedForImpairment	28415000	USD
CY2019Q2	us-gaap	Certain Loans And Debt Securities Acquired In Transfer Allowance For Credit Losses Due To Subsequent Impairment CertainLoansAndDebtSecuritiesAcquiredInTransferAllowanceForCreditLossesDueToSubsequentImpairment	2575000	USD
CY2019Q2	us-gaap	Loans And Leases Receivable Allowance LoansAndLeasesReceivableAllowance	36363000	USD
CY2019Q2	us-gaap	Financing Receivable Individually Evaluated For Impairment FinancingReceivableIndividuallyEvaluatedForImpairment	45218000	USD
CY2019Q2	us-gaap	Financing Receivable Collectively Evaluated For Impairment FinancingReceivableCollectivelyEvaluatedForImpairment	3648032000	USD
CY2019Q2	hfwa	Certain Loans Acquired In Transfer Not Accounted For As Debt Securities Carrying Amount CertainLoansAcquiredInTransferNotAccountedForAsDebtSecuritiesCarryingAmount	22353000	USD
CY2019Q2	us-gaap	Loans And Leases Receivable Gross Carrying Amount LoansAndLeasesReceivableGrossCarryingAmount	3715603000	USD
CY2018Q1	us-gaap	Loans And Leases Receivable Allowance LoansAndLeasesReceivableAllowance	33261000	USD
CY2018Q2	us-gaap	Allowance For Loan And Lease Losses Write Offs AllowanceForLoanAndLeaseLossesWriteOffs	1251000	USD
CY2018Q2	us-gaap	Allowance For Loan And Lease Loss Recovery Of Bad Debts AllowanceForLoanAndLeaseLossRecoveryOfBadDebts	212000	USD
CY2018Q2	us-gaap	Provision For Loan And Lease Losses ProvisionForLoanAndLeaseLosses	1750000	USD
CY2018Q2	us-gaap	Loans And Leases Receivable Allowance LoansAndLeasesReceivableAllowance	33972000	USD
	us-gaap	Allowance For Loan And Lease Losses Write Offs AllowanceForLoanAndLeaseLossesWriteOffs	1817000	USD
CY2017Q4	us-gaap	Loans And Leases Receivable Allowance LoansAndLeasesReceivableAllowance	32086000	USD
	us-gaap	Allowance For Loan And Lease Loss Recovery Of Bad Debts AllowanceForLoanAndLeaseLossRecoveryOfBadDebts	801000	USD
	us-gaap	Provision For Loan And Lease Losses ProvisionForLoanAndLeaseLosses	2902000	USD
CY2018Q2	us-gaap	Loans And Leases Receivable Allowance LoansAndLeasesReceivableAllowance	33972000	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
CY2019Q1	us-gaap	Other Real Estate OtherRealEstate	1904000	USD
CY2018Q1	us-gaap	Other Real Estate OtherRealEstate	0	USD
CY2018Q4	us-gaap	Other Real Estate OtherRealEstate	1983000	USD
CY2017Q4	us-gaap	Other Real Estate OtherRealEstate	0	USD
CY2019Q2	us-gaap	Other Real Estate Additions OtherRealEstateAdditions	0	USD
CY2018Q2	us-gaap	Other Real Estate Additions OtherRealEstateAdditions	434000	USD
	us-gaap	Other Real Estate Additions OtherRealEstateAdditions	0	USD
	us-gaap	Other Real Estate Additions OtherRealEstateAdditions	434000	USD
CY2019Q2	us-gaap	Other Real Estate Disposals OtherRealEstateDisposals	350000	USD
CY2018Q2	us-gaap	Other Real Estate Disposals OtherRealEstateDisposals	0	USD
	us-gaap	Other Real Estate Disposals OtherRealEstateDisposals	429000	USD
	us-gaap	Other Real Estate Disposals OtherRealEstateDisposals	0	USD
CY2019Q2	us-gaap	Gains Losses On Sales Of Other Real Estate GainsLossesOnSalesOfOtherRealEstate	-279000	USD
CY2018Q2	us-gaap	Gains Losses On Sales Of Other Real Estate GainsLossesOnSalesOfOtherRealEstate	0	USD
	us-gaap	Gains Losses On Sales Of Other Real Estate GainsLossesOnSalesOfOtherRealEstate	-279000	USD
	us-gaap	Gains Losses On Sales Of Other Real Estate GainsLossesOnSalesOfOtherRealEstate	0	USD
CY2019Q2	us-gaap	Other Real Estate Valuation Adjustments OtherRealEstateValuationAdjustments	-51000	USD
CY2018Q2	us-gaap	Other Real Estate Valuation Adjustments OtherRealEstateValuationAdjustments	0	USD
	us-gaap	Other Real Estate Valuation Adjustments OtherRealEstateValuationAdjustments	-51000	USD
	us-gaap	Other Real Estate Valuation Adjustments OtherRealEstateValuationAdjustments	0	USD
CY2019Q2	us-gaap	Other Real Estate OtherRealEstate	1224000	USD
CY2018Q2	us-gaap	Other Real Estate OtherRealEstate	434000	USD
CY2019Q2	us-gaap	Other Real Estate OtherRealEstate	1224000	USD
CY2018Q2	us-gaap	Other Real Estate OtherRealEstate	434000	USD
CY2019Q2	us-gaap	Other Real Estate And Foreclosed Assets OtherRealEstateAndForeclosedAssets	383000	USD
CY2019Q2	us-gaap	Mortgage Loans In Process Of Foreclosure Amount MortgageLoansInProcessOfForeclosureAmount	0	USD
CY2018Q4	us-gaap	Goodwill Goodwill	240939000	USD
CY2018Q1	us-gaap	Goodwill Goodwill	187549000	USD
CY2018Q4	us-gaap	Goodwill Goodwill	240939000	USD
CY2017Q4	us-gaap	Goodwill Goodwill	119029000	USD
CY2019Q2	us-gaap	Goodwill Acquired During Period GoodwillAcquiredDuringPeriod	0	USD
CY2018Q2	us-gaap	Goodwill Acquired During Period GoodwillAcquiredDuringPeriod	0	USD
	us-gaap	Goodwill Acquired During Period GoodwillAcquiredDuringPeriod	0	USD
	us-gaap	Goodwill Acquired During Period GoodwillAcquiredDuringPeriod	68520000	USD
CY2019Q2	us-gaap	Goodwill Goodwill	240939000	USD
CY2018Q2	us-gaap	Goodwill Goodwill	187549000	USD
CY2019Q2	us-gaap	Goodwill Goodwill	240939000	USD
CY2018Q2	us-gaap	Goodwill Goodwill	187549000	USD
CY2019Q1	us-gaap	Intangible Assets Gross Excluding Goodwill IntangibleAssetsGrossExcludingGoodwill	19589000	USD
CY2018Q1	us-gaap	Intangible Assets Gross Excluding Goodwill IntangibleAssetsGrossExcludingGoodwill	16563000	USD
CY2018Q4	us-gaap	Intangible Assets Gross Excluding Goodwill IntangibleAssetsGrossExcludingGoodwill	20614000	USD
CY2017Q4	us-gaap	Intangible Assets Gross Excluding Goodwill IntangibleAssetsGrossExcludingGoodwill	6088000	USD
CY2019Q2	hfwa	Intangible Assets Acquired IntangibleAssetsAcquired	0	USD
CY2018Q2	hfwa	Intangible Assets Acquired IntangibleAssetsAcquired	0	USD
	hfwa	Intangible Assets Acquired IntangibleAssetsAcquired	0	USD
	hfwa	Intangible Assets Acquired IntangibleAssetsAcquired	11270000	USD
CY2019Q2	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	1026000	USD
CY2018Q2	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	796000	USD
	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	2051000	USD
	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	1591000	USD
CY2019Q2	us-gaap	Intangible Assets Gross Excluding Goodwill IntangibleAssetsGrossExcludingGoodwill	18563000	USD
CY2018Q2	us-gaap	Intangible Assets Gross Excluding Goodwill IntangibleAssetsGrossExcludingGoodwill	15767000	USD
CY2019Q2	us-gaap	Intangible Assets Gross Excluding Goodwill IntangibleAssetsGrossExcludingGoodwill	18563000	USD
CY2018Q2	us-gaap	Intangible Assets Gross Excluding Goodwill IntangibleAssetsGrossExcludingGoodwill	15767000	USD
CY2019Q2	us-gaap	Junior Subordinated Notes JuniorSubordinatedNotes	20400000	USD
CY2018Q4	us-gaap	Junior Subordinated Notes JuniorSubordinatedNotes	20300000	USD
CY2019Q2	hfwa	Adjustablerateoftrustpreferredsecurities Adjustablerateoftrustpreferredsecurities	0.0388
	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 securities sold under agreement to repurchase 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:73%;"/><td style="width:1%;"/><td style="width:11%;"/><td style="width:1%;"/><td style="width:1%;"/><td style="width:1%;"/><td style="width:11%;"/><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;">June 30, 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;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="7" style="vertical-align:bottom;background-color:#cceeff;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;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;"><div style="text-align:left;font-size:10pt;"><span style="font-family:Arial;font-size:10pt;">$</span></div></td><td style="vertical-align:bottom;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:10pt;"><span style="font-family:Arial;font-size:10pt;"><span>4,952</span></span></div></td><td style="vertical-align:bottom;"><div style="text-align:left;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"><br/></span></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"> </span></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:left;font-size:10pt;"><span style="font-family:Arial;font-size:10pt;">$</span></div></td><td style="vertical-align:bottom;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;"><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;background-color:#cceeff;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></div></td><td colspan="3" 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;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="3" 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></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;">Residential</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>5,536</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>9,335</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: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;">Commercial</span></div></td><td colspan="2" style="vertical-align:bottom;border-bottom:1px solid #000000;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>12,653</span></span></div></td><td style="vertical-align:bottom;border-bottom:1px solid #000000;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>17,274</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:bottom;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;">Total 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;border-top:1px solid #000000;"><div style="text-align:left;font-size:10pt;"><span style="font-family:Arial;font-size:10pt;">$</span></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;padding-top:2px;padding-bottom:2px;border-top:1px solid #000000;"><div style="text-align:right;font-size:10pt;"><span style="font-family:Arial;font-size:10pt;"><span>23,141</span></span></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;border-top:1px solid #000000;"><div style="text-align:left;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"><br/></span></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"> </span></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;border-top:1px solid #000000;"><div style="text-align:left;font-size:10pt;"><span style="font-family:Arial;font-size:10pt;">$</span></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;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;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;text-indent:-12px;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>
CY2019Q2	us-gaap	Securities Sold Under Agreements To Repurchase SecuritiesSoldUnderAgreementsToRepurchase	23141000	USD
CY2018Q4	us-gaap	Securities Sold Under Agreements To Repurchase SecuritiesSoldUnderAgreementsToRepurchase	31487000	USD
CY2019Q2	us-gaap	Federal Home Loan Bank Advances General Debt Obligations Disclosures Maximum Amount Available FederalHomeLoanBankAdvancesGeneralDebtObligationsDisclosuresMaximumAmountAvailable	827700000	USD
CY2019Q2	us-gaap	Federal Home Loan Bank Advances Branch Of Fhlb Bank Amount Of Advances By Branch FederalHomeLoanBankAdvancesBranchOfFHLBBankAmountOfAdvancesByBranch	90700000	USD
CY2018Q4	us-gaap	Federal Home Loan Bank Advances Branch Of Fhlb Bank Amount Of Advances By Branch FederalHomeLoanBankAdvancesBranchOfFHLBBankAmountOfAdvancesByBranch	0	USD
CY2019Q2	us-gaap	Federal Home Loan Bank Advances Activity For Year Average Balance Of Agreements Outstanding FederalHomeLoanBankAdvancesActivityForYearAverageBalanceOfAgreementsOutstanding	42101000	USD
CY2018Q2	us-gaap	Federal Home Loan Bank Advances Activity For Year Average Balance Of Agreements Outstanding FederalHomeLoanBankAdvancesActivityForYearAverageBalanceOfAgreementsOutstanding	79120000	USD
	us-gaap	Federal Home Loan Bank Advances Activity For Year Average Balance Of Agreements Outstanding FederalHomeLoanBankAdvancesActivityForYearAverageBalanceOfAgreementsOutstanding	22086000	USD
	us-gaap	Federal Home Loan Bank Advances Activity For Year Average Balance Of Agreements Outstanding FederalHomeLoanBankAdvancesActivityForYearAverageBalanceOfAgreementsOutstanding	57546000	USD
CY2019Q2	hfwa	Federal Home Loan Bank Advances Activity For Period Maximum Outstanding At Any Month End FederalHomeLoanBankAdvancesActivityForPeriodMaximumOutstandingAtAnyMonthEnd	90700000	USD
CY2018Q2	hfwa	Federal Home Loan Bank Advances Activity For Period Maximum Outstanding At Any Month End FederalHomeLoanBankAdvancesActivityForPeriodMaximumOutstandingAtAnyMonthEnd	154500000	USD
	hfwa	Federal Home Loan Bank Advances Activity For Period Maximum Outstanding At Any Month End FederalHomeLoanBankAdvancesActivityForPeriodMaximumOutstandingAtAnyMonthEnd	90700000	USD
	hfwa	Federal Home Loan Bank Advances Activity For Period Maximum Outstanding At Any Month End FederalHomeLoanBankAdvancesActivityForPeriodMaximumOutstandingAtAnyMonthEnd	154500000	USD
CY2019Q2	us-gaap	Federal Home Loan Bank Advances Activity For Year Average Interest Rate For Year FederalHomeLoanBankAdvancesActivityForYearAverageInterestRateForYear	0.0265
CY2018Q2	us-gaap	Federal Home Loan Bank Advances Activity For Year Average Interest Rate For Year FederalHomeLoanBankAdvancesActivityForYearAverageInterestRateForYear	0.0204
	us-gaap	Federal Home Loan Bank Advances Activity For Year Average Interest Rate For Year FederalHomeLoanBankAdvancesActivityForYearAverageInterestRateForYear	0.0268
	us-gaap	Federal Home Loan Bank Advances Activity For Year Average Interest Rate For Year FederalHomeLoanBankAdvancesActivityForYearAverageInterestRateForYear	0.0193
	hfwa	Advance Line Maintainedto Purchase Federal Funds AdvanceLineMaintainedtoPurchaseFederalFunds	90000000.0	USD
CY2019Q2	us-gaap	Federal Funds Purchased FederalFundsPurchased	0	USD
CY2019Q2	us-gaap	Net Income Loss NetIncomeLoss	15984000	USD
CY2018Q2	us-gaap	Net Income Loss NetIncomeLoss	11857000	USD
	us-gaap	Net Income Loss NetIncomeLoss	32536000	USD
	us-gaap	Net Income Loss NetIncomeLoss	20944000	USD
CY2019Q2	hfwa	Dividends And Undistributed Earnings DividendsAndUndistributedEarnings	48000	USD
CY2018Q2	hfwa	Dividends And Undistributed Earnings DividendsAndUndistributedEarnings	57000	USD
	hfwa	Dividends And Undistributed Earnings DividendsAndUndistributedEarnings	100000	USD
	hfwa	Dividends And Undistributed Earnings DividendsAndUndistributedEarnings	110000	USD
CY2019Q2	us-gaap	Undistributed Earnings Diluted UndistributedEarningsDiluted	15936000	USD
CY2018Q2	us-gaap	Undistributed Earnings Diluted UndistributedEarningsDiluted	11800000	USD
	us-gaap	Undistributed Earnings Diluted UndistributedEarningsDiluted	32436000	USD
	us-gaap	Undistributed Earnings Diluted UndistributedEarningsDiluted	20834000	USD
CY2019Q2	hfwa	Gross Weighted Average Number Of Shares Outstanding Basic GrossWeightedAverageNumberOfSharesOutstandingBasic	36895625	shares
CY2018Q2	hfwa	Gross Weighted Average Number Of Shares Outstanding Basic GrossWeightedAverageNumberOfSharesOutstandingBasic	34023566	shares
	hfwa	Gross Weighted Average Number Of Shares Outstanding Basic GrossWeightedAverageNumberOfSharesOutstandingBasic	36888601	shares
	hfwa	Gross Weighted Average Number Of Shares Outstanding Basic GrossWeightedAverageNumberOfSharesOutstandingBasic	33680014	shares
CY2019Q2	us-gaap	Weighted Average Number Of Shares Restricted Stock WeightedAverageNumberOfSharesRestrictedStock	25466	shares
CY2018Q2	us-gaap	Weighted Average Number Of Shares Restricted Stock WeightedAverageNumberOfSharesRestrictedStock	88905	shares
	us-gaap	Weighted Average Number Of Shares Restricted Stock WeightedAverageNumberOfSharesRestrictedStock	40632	shares
	us-gaap	Weighted Average Number Of Shares Restricted Stock WeightedAverageNumberOfSharesRestrictedStock	107897	shares
CY2019Q2	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	36870159	shares
CY2018Q2	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	33934661	shares
	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	36847969	shares
	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	33572117	shares
CY2019Q2	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	36870159	shares
CY2018Q2	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	33934661	shares
	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	36847969	shares
	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	33572117	shares
CY2019Q2	us-gaap	Weighted Average Number Diluted Shares Outstanding Adjustment WeightedAverageNumberDilutedSharesOutstandingAdjustment	144714	shares
CY2018Q2	us-gaap	Weighted Average Number Diluted Shares Outstanding Adjustment WeightedAverageNumberDilutedSharesOutstandingAdjustment	172631	shares
	us-gaap	Weighted Average Number Diluted Shares Outstanding Adjustment WeightedAverageNumberDilutedSharesOutstandingAdjustment	163767	shares
	us-gaap	Weighted Average Number Diluted Shares Outstanding Adjustment WeightedAverageNumberDilutedSharesOutstandingAdjustment	157819	shares
CY2019Q2	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	37014873	shares
CY2018Q2	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	34107292	shares
	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	37011736	shares
	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	33729936	shares
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	Dividends Payable Date Declared Day Month And Year DividendsPayableDateDeclaredDayMonthAndYear	2018-04-25
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
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
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
CY2019Q2	hfwa	Business Combination Shares Issuedin Mergerbut Forfeitedto Pay Taxes BusinessCombinationSharesIssuedinMergerbutForfeitedtoPayTaxes	26741	shares
CY2019Q2	us-gaap	Business Acquisition Share Price BusinessAcquisitionSharePrice	31.80
	hfwa	Fair Value Assets Transfers Between Level1and Level2 Transfers Amount FairValueAssetsTransfersBetweenLevel1andLevel2TransfersAmount	0	USD
CY2019Q2	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	27300000	USD
CY2019Q2	us-gaap	Operating Lease Liability OperatingLeaseLiability	28600000	USD
CY2019Q2	us-gaap	Restricted Cash And Cash Equivalents RestrictedCashAndCashEquivalents	14200000	USD
CY2018Q4	us-gaap	Restricted Cash And Cash Equivalents RestrictedCashAndCashEquivalents	9200000	USD
CY2019Q2	us-gaap	Operating Lease Cost OperatingLeaseCost	1209000	USD
	us-gaap	Operating Lease Cost OperatingLeaseCost	2452000	USD
CY2019Q2	us-gaap	Variable Lease Cost VariableLeaseCost	174000	USD
	us-gaap	Variable Lease Cost VariableLeaseCost	392000	USD
CY2019Q2	us-gaap	Sublease Income SubleaseIncome	61000	USD
	us-gaap	Sublease Income SubleaseIncome	99000	USD
CY2019Q2	us-gaap	Lease Cost LeaseCost	1322000	USD
	us-gaap	Lease Cost LeaseCost	2745000	USD
CY2019Q2	us-gaap	Operating Lease Payments OperatingLeasePayments	1179000	USD
	us-gaap	Operating Lease Payments OperatingLeasePayments	2366000	USD
CY2019Q2	us-gaap	Right Of Use Asset Obtained In Exchange For Operating Lease Liability RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability	0	USD
	us-gaap	Right Of Use Asset Obtained In Exchange For Operating Lease Liability RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability	335000	USD
CY2019Q2	us-gaap	Operating Lease Weighted Average Remaining Lease Term1 OperatingLeaseWeightedAverageRemainingLeaseTerm1	P8Y8M1D
CY2019Q2	us-gaap	Operating Lease Weighted Average Discount Rate Percent OperatingLeaseWeightedAverageDiscountRatePercent	0.0333
CY2019Q2	us-gaap	Lessee Operating Lease Liability Payments Remainder Of Fiscal Year LesseeOperatingLeaseLiabilityPaymentsRemainderOfFiscalYear	2421000	USD
CY2019Q2	us-gaap	Lessee Operating Lease Liability Payments Due Year Two LesseeOperatingLeaseLiabilityPaymentsDueYearTwo	4581000	USD
CY2019Q2	us-gaap	Lessee Operating Lease Liability Payments Due Year Three LesseeOperatingLeaseLiabilityPaymentsDueYearThree	4155000	USD
CY2019Q2	us-gaap	Lessee Operating Lease Liability Payments Due Year Four LesseeOperatingLeaseLiabilityPaymentsDueYearFour	3730000	USD
CY2019Q2	us-gaap	Lessee Operating Lease Liability Payments Due Year Five LesseeOperatingLeaseLiabilityPaymentsDueYearFive	3738000	USD
CY2019Q2	us-gaap	Lessee Operating Lease Liability Payments Due After Year Five LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive	14220000	USD
CY2019Q2	us-gaap	Lessee Operating Lease Liability Payments Due LesseeOperatingLeaseLiabilityPaymentsDue	32845000	USD
CY2019Q2	us-gaap	Lessee Operating Lease Liability Undiscounted Excess Amount LesseeOperatingLeaseLiabilityUndiscountedExcessAmount	4271000	USD
CY2019Q2	us-gaap	Operating Lease Liability OperatingLeaseLiability	28574000	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

Files In Submission

Name	View Source	Status
R34.htm	Edgar Link	pending
0001046025-19-000146-index-headers.html	Edgar Link	pending
0001046025-19-000146-index.html	Edgar Link	pending
0001046025-19-000146.txt	Edgar Link	pending
0001046025-19-000146-xbrl.zip	Edgar Link	pending
ex-31110q063019.htm	Edgar Link	pending
ex-31210q063019.htm	Edgar Link	pending
ex-32110q063019.htm	Edgar Link	pending
FilingSummary.xml	Edgar Link	unprocessable
Financial_Report.xlsx	Edgar Link	pending
hfwa-20190630.xsd	Edgar Link	pending
hfwa-2019063010q.htm	Edgar Link	pending
hfwa-2019063010q_htm.xml	Edgar Link	completed
hfwa-20190630_cal.xml	Edgar Link	unprocessable
hfwa-20190630_def.xml	Edgar Link	unprocessable
hfwa-20190630_lab.xml	Edgar Link	unprocessable
hfwa-20190630_pre.xml	Edgar Link	unprocessable
MetaLinks.json	Edgar Link	pending
R1.htm	Edgar Link	pending
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report.css	Edgar Link	pending
Show.js	Edgar Link	pending

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$HFWA
HERITAGE FINANCIAL CORP /WA/ Stock $hfwa

2019 Q2 Form 10-Q Financial Statement

#000104602519000146 Filed on August 08, 2019

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$HFWA HERITAGE FINANCIAL CORP /WA/ Stock $hfwa

2019 Q2 Form 10-Q Financial Statement

#000104602519000146 Filed on August 08, 2019

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$HFWA
HERITAGE FINANCIAL CORP /WA/ Stock $hfwa