XML 27 R18.htm IDEA: XBRL DOCUMENT
v3.22.2

Cash Restriction | 6 Months Ended
--- | ---
Jun. 30, 2022
Banking and Thrift, Other Disclosures [Abstract] |
Cash Restriction | Cash RestrictionThe Bank had no cash restrictions at June 30, 2022 and had restricted cash included in interest earning deposits of $9.8 million at December 31, 2021 relating to collateral required on interest rate swaps from third-parties as discussed in Note (6) Derivative Financial Instruments. The Bank does not have a collateral requirement with customers.

X
- Definition Regulatory Cash Requirements Under Banking Regulations [Text Block] + References No definition available. + Details
Name: | hfwa_RegulatoryCashRequirementsUnderBankingRegulationsTextBlock
Namespace Prefix: | hfwa_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

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