XML 59 R49.htm IDEA: XBRL DOCUMENT v3.24.1.u1

LOANS AND CREDIT QUALITY - Loan Modifications with Subsequent Default, by Loan Modification (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Commercial business | Commercial business | Significant Payment Delay
Financing Receivable, Troubled Debt Restructuring [Line Items]
Loan modifications with subsequent default	$ 0
Commercial business | Commercial business | Term Extension
Financing Receivable, Troubled Debt Restructuring [Line Items]
Loan modifications with subsequent default	4,420
Commercial business | Commercial business | Extended Maturity and Interest Rate Reduction [Member]
Financing Receivable, Troubled Debt Restructuring [Line Items]
Loan modifications with subsequent default	0
Commercial business | Commercial business | Significant Payment Delay and Term Extension
Financing Receivable, Troubled Debt Restructuring [Line Items]
Loan modifications with subsequent default	0
Commercial business | Commercial business | Interest Rate Reduction, Significant Payment Delay and Term Extension
Financing Receivable, Troubled Debt Restructuring [Line Items]
Loan modifications with subsequent default	0
Commercial business | Non-owner occupied CRE | Significant Payment Delay
Financing Receivable, Troubled Debt Restructuring [Line Items]
Loan modifications with subsequent default	0
Commercial business | Non-owner occupied CRE | Term Extension
Financing Receivable, Troubled Debt Restructuring [Line Items]
Loan modifications with subsequent default	0
Commercial business | Non-owner occupied CRE | Extended Maturity and Interest Rate Reduction [Member]
Financing Receivable, Troubled Debt Restructuring [Line Items]
Loan modifications with subsequent default	0
Commercial business | Non-owner occupied CRE | Significant Payment Delay and Term Extension
Financing Receivable, Troubled Debt Restructuring [Line Items]
Loan modifications with subsequent default	16,240
Commercial business | Non-owner occupied CRE | Interest Rate Reduction, Significant Payment Delay and Term Extension
Financing Receivable, Troubled Debt Restructuring [Line Items]
Loan modifications with subsequent default	0
Commercial business | CRE construction | Significant Payment Delay
Financing Receivable, Troubled Debt Restructuring [Line Items]
Loan modifications with subsequent default	0
Commercial business | CRE construction | Term Extension
Financing Receivable, Troubled Debt Restructuring [Line Items]
Loan modifications with subsequent default	0
Commercial business | CRE construction | Extended Maturity and Interest Rate Reduction [Member]
Financing Receivable, Troubled Debt Restructuring [Line Items]
Loan modifications with subsequent default	0
Commercial business | CRE construction | Significant Payment Delay and Term Extension
Financing Receivable, Troubled Debt Restructuring [Line Items]
Loan modifications with subsequent default	3,824
Commercial business | CRE construction | Interest Rate Reduction, Significant Payment Delay and Term Extension
Financing Receivable, Troubled Debt Restructuring [Line Items]
Loan modifications with subsequent default	0
Consumer loans | Significant Payment Delay
Financing Receivable, Troubled Debt Restructuring [Line Items]
Loan modifications with subsequent default	241
Consumer loans | Term Extension
Financing Receivable, Troubled Debt Restructuring [Line Items]
Loan modifications with subsequent default	4,420
Consumer loans | Extended Maturity and Interest Rate Reduction [Member]
Financing Receivable, Troubled Debt Restructuring [Line Items]
Loan modifications with subsequent default	0
Consumer loans | Significant Payment Delay and Term Extension
Financing Receivable, Troubled Debt Restructuring [Line Items]
Loan modifications with subsequent default	20,415
Consumer loans | Interest Rate Reduction, Significant Payment Delay and Term Extension
Financing Receivable, Troubled Debt Restructuring [Line Items]
Loan modifications with subsequent default	0
Consumer loans | Single family | Significant Payment Delay
Financing Receivable, Troubled Debt Restructuring [Line Items]
Loan modifications with subsequent default	241	$ 0
Consumer loans | Single family | Term Extension
Financing Receivable, Troubled Debt Restructuring [Line Items]
Loan modifications with subsequent default	0	0
Consumer loans | Single family | Extended Maturity and Interest Rate Reduction [Member]
Financing Receivable, Troubled Debt Restructuring [Line Items]
Loan modifications with subsequent default	0	0
Consumer loans | Single family | Significant Payment Delay and Term Extension
Financing Receivable, Troubled Debt Restructuring [Line Items]
Loan modifications with subsequent default	351	2,030
Consumer loans | Single family | Interest Rate Reduction, Significant Payment Delay and Term Extension
Financing Receivable, Troubled Debt Restructuring [Line Items]
Loan modifications with subsequent default	$ 0	$ 623

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

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 310
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 42
-Subparagraph (a)(1)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147481962/310-10-50-42

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 310
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 42
-Subparagraph (a)(2)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147481962/310-10-50-42

Reference 3: http://www.xbrl.org/2003/role/exampleRef
-Topic 310
-SubTopic 10
-Name Accounting Standards Codification
-Section 55
-Paragraph 12A
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147481933/310-10-55-12A

Reference 4: http://www.xbrl.org/2003/role/disclosureRef
-Topic 310
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 33
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147481962/310-10-50-33

Reference 5: http://www.xbrl.org/2003/role/disclosureRef
-Topic 310
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 34
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147481962/310-10-50-34

+ Details

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

X

- Details

Name:	us-gaap_FinancingReceivablePortfolioSegmentAxis=us-gaap_CommercialLoanMember
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_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=hmst_NonOwnerOccupiedCommercialRealEstateMember
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_FinancingReceivablePortfolioSegmentAxis=us-gaap_ConsumerLoanMember
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: