XML 45 R35.htm IDEA: XBRL DOCUMENT v3.25.1

LOANS AND CREDIT QUALITY - Narrative (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2025 USD ($) segment	Mar. 31, 2024 USD ($)	Dec. 31, 2024 USD ($)
Financing Receivable, Impaired [Line Items]
Number of portfolio segments | segment	2
Loans held for investment ("LHFI")	$ 6,023,582		$ 6,193,053
Allowance for unfunded commitments	1,300		1,100
Accrued interest receivable	24,200		25,100
Payment Deferral [Member]
Financing Receivable, Impaired [Line Items]
Loan modifications with subsequent default		$ 241
Term Extension
Financing Receivable, Impaired [Line Items]
Loan modifications with subsequent default		4,420
Extended Maturity and Interest Rate Reduction
Financing Receivable, Impaired [Line Items]
Loan modifications with subsequent default		0
Significant Payment Delay and Term Extension
Financing Receivable, Impaired [Line Items]
Loan modifications with subsequent default		20,415
Contractual Interest Rate Reduction, Payment Deferral, And Extended Maturity [Member]
Financing Receivable, Impaired [Line Items]
Loan modifications with subsequent default		0
Commercial business | Commercial loans | Payment Deferral [Member]
Financing Receivable, Impaired [Line Items]
Loan modifications with subsequent default		0
Commercial business | Commercial loans | Term Extension
Financing Receivable, Impaired [Line Items]
Loan modifications with subsequent default		4,420
Commercial business | Commercial loans | Extended Maturity and Interest Rate Reduction
Financing Receivable, Impaired [Line Items]
Loan modifications with subsequent default		0
Commercial business | Commercial loans | Significant Payment Delay and Term Extension
Financing Receivable, Impaired [Line Items]
Loan modifications with subsequent default		0
Commercial business | Commercial loans | Contractual Interest Rate Reduction, Payment Deferral, And Extended Maturity [Member]
Financing Receivable, Impaired [Line Items]
Loan modifications with subsequent default		0
Non-owner occupied CRE | Commercial business | Payment Deferral [Member]
Financing Receivable, Impaired [Line Items]
Loan modifications with subsequent default		0
Non-owner occupied CRE | Commercial business | Term Extension
Financing Receivable, Impaired [Line Items]
Loan modifications with subsequent default		0
Non-owner occupied CRE | Commercial business | Extended Maturity and Interest Rate Reduction
Financing Receivable, Impaired [Line Items]
Loan modifications with subsequent default		0
Non-owner occupied CRE | Commercial business | Significant Payment Delay and Term Extension
Financing Receivable, Impaired [Line Items]
Loan modifications with subsequent default		16,240
Non-owner occupied CRE | Commercial business | Contractual Interest Rate Reduction, Payment Deferral, And Extended Maturity [Member]
Financing Receivable, Impaired [Line Items]
Loan modifications with subsequent default		0
CRE construction | Commercial business | Payment Deferral [Member]
Financing Receivable, Impaired [Line Items]
Loan modifications with subsequent default		0
CRE construction | Commercial business | Term Extension
Financing Receivable, Impaired [Line Items]
Loan modifications with subsequent default		0
CRE construction | Commercial business | Extended Maturity and Interest Rate Reduction
Financing Receivable, Impaired [Line Items]
Loan modifications with subsequent default		0
CRE construction | Commercial business | Significant Payment Delay and Term Extension
Financing Receivable, Impaired [Line Items]
Loan modifications with subsequent default		3,824
CRE construction | Commercial business | Contractual Interest Rate Reduction, Payment Deferral, And Extended Maturity [Member]
Financing Receivable, Impaired [Line Items]
Loan modifications with subsequent default		0
Single Family [Member] | Consumer loans | Payment Deferral [Member]
Financing Receivable, Impaired [Line Items]
Loan modifications with subsequent default	0	241
Single Family [Member] | Consumer loans | Term Extension
Financing Receivable, Impaired [Line Items]
Loan modifications with subsequent default	0	0
Single Family [Member] | Consumer loans | Extended Maturity and Interest Rate Reduction
Financing Receivable, Impaired [Line Items]
Loan modifications with subsequent default	0	0
Single Family [Member] | Consumer loans | Significant Payment Delay and Term Extension
Financing Receivable, Impaired [Line Items]
Loan modifications with subsequent default	325	351
Single Family [Member] | Consumer loans | Contractual Interest Rate Reduction, Payment Deferral, And Extended Maturity [Member]
Financing Receivable, Impaired [Line Items]
Loan modifications with subsequent default	$ 0	$ 0
Washington | Single Family [Member]
Financing Receivable, Impaired [Line Items]
Percentage of loan portfolio	13.00%
California | Multifamily
Financing Receivable, Impaired [Line Items]
Percentage of loan portfolio	30.00%
Federal Home Loan Bank Advances | Asset Pledged as Collateral without Right
Financing Receivable, Impaired [Line Items]
Loans held for investment ("LHFI")	$ 3,300,000		4,000,000
Federal Reserve Bank Advances | Asset Pledged as Collateral without Right
Financing Receivable, Impaired [Line Items]
Loans held for investment ("LHFI")	$ 1,900,000		$ 1,400,000

X

- Definition

Allowance For Unfunded Commitments

+ References

No definition available.

+ Details

Name:	hmst_AllowanceForUnfundedCommitments
Namespace Prefix:	hmst_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

X

- Definition

Number Of Portfolio Segments

+ References

No definition available.

+ Details

Name:	hmst_NumberOfPortfolioSegments
Namespace Prefix:	hmst_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Percentage of total loan portfolio.

+ References

No definition available.

+ Details

Name:	hmst_PercentageOfLoanPortfolio
Namespace Prefix:	hmst_
Data Type:	dtr-types1:percentItemType
Balance Type:	na
Period Type:	instant

X

- Definition

Amount, after allowance for credit loss, of accrued interest on financing receivable.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
-Section 45
-Paragraph 5
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479344/326-20-45-5

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 3A
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479319/326-20-50-3A

+ Details

Name:	us-gaap_FinancingReceivableAccruedInterestAfterAllowanceForCreditLoss
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

X

- Definition

Amortized cost excluding accrued interest, after allowance for credit loss, of financing receivable. Excludes net investment in lease.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
-Section 45
-Paragraph 1
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479344/326-20-45-1

+ Details

Name:	us-gaap_FinancingReceivableExcludingAccruedInterestAfterAllowanceForCreditLoss
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

X

- Definition

Amortized cost excluding accrued interest, of financing receivable with payment default in current period and modified within previous 12 months preceding payment default for debtor experiencing financial difficulty.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 310
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 44
-Subparagraph (a)(2)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481962/310-10-50-44

+ Details

Name:	us-gaap_FinancingReceivableExcludingAccruedInterestModifiedSubsequentDefault
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

Name:	us-gaap_FinancingReceivableImpairedLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Details

Name:	us-gaap_LoanRestructuringModificationAxis=us-gaap_PaymentDeferralMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_LoanRestructuringModificationAxis=us-gaap_ExtendedMaturityMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_LoanRestructuringModificationAxis=us-gaap_ExtendedMaturityAndInterestRateReductionMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_LoanRestructuringModificationAxis=hmst_PaymentDeferralAndExtendedMaturityMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_LoanRestructuringModificationAxis=hmst_ContractualInterestRateReductionPaymentDeferralAndExtendedMaturityMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=us-gaap_CommercialLoanMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_FinancingReceivablePortfolioSegmentAxis=us-gaap_CommercialPortfolioSegmentMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=hmst_NonOwnerOccupiedCommercialRealEstateMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_FinancingReceivablePortfolioSegmentAxis=us-gaap_CommercialLoanMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=hmst_CommercialRealEstateConstructionMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=srt_SingleFamilyMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_FinancingReceivablePortfolioSegmentAxis=us-gaap_ConsumerLoanMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	srt_StatementGeographicalAxis=stpr_WA
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	srt_StatementGeographicalAxis=stpr_CA
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=srt_MultifamilyMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_FinancialInstrumentAxis=us-gaap_FederalHomeLoanBankAdvancesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_PledgedStatusAxis=us-gaap_AssetPledgedAsCollateralWithoutRightMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_FinancialInstrumentAxis=us-gaap_FederalReserveBankAdvancesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: