XML 44 R29.htm IDEA: XBRL DOCUMENT
v3.20.4

Cash Restrictions | 12 Months Ended
--- | ---
Dec. 31, 2020
Banking and Thrift, Other Disclosures [Abstract] |
Cash Requirement | Cash Restrictions The Company is required to maintain an average reserve balance with the Federal Reserve Bank or maintain such reserve balance in the form of cash. Effective March 24, 2020 the Federal Reserve lowered the reserve ratios on transaction accounts maintained at a depository institution to zero percent. There was no required reserve balance at December 31, 2020 and a required balance of $17.1 million at December 31, 2019 was met by holding cash and maintaining an average balance with the Federal Reserve Bank. The Company had restricted cash included in Interest earning deposits on the Consolidated Statements of Financial Condition of $34.2 million and $15.8 million as of December 31, 2020 and December 31, 2019, respectively, relating to collateral required on interest rate swaps from third-parties as discussed in Note (16) Derivative Financial Instruments. The Company 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: | nonnum: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