XML 106 R92.htm IDEA: XBRL DOCUMENT
v3.22.0.1

Employee Benefit Plans - Salary Continuation Plan (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019
Retirement Benefits [Abstract] |  |  |
Obligation, at the beginning of the year | $ 4,162 | $ 4,334 | $ 4,600
Benefits paid | (536) | (460) | (554)
Expenses incurred | 209 | 288 | 288
Obligation, at the end of the year | $ 3,835 | $ 4,162 | $ 4,334

X
- Definition Salary Continuation Plan + References No definition available. + Details
Name: | hfwa_SalaryContinuationPlan
Namespace Prefix: | hfwa_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Salary Continuation Plan Benefit Paid + References No definition available. + Details
Name: | hfwa_SalaryContinuationPlanBenefitPaid
Namespace Prefix: | hfwa_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Salary Continuation Plan Expense + References No definition available. + Details
Name: | hfwa_SalaryContinuationPlanExpense
Namespace Prefix: | hfwa_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- References No definition available. + Details
Name: | us-gaap_CompensationAndRetirementDisclosureAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration