XML 60 R48.htm IDEA: XBRL DOCUMENT v3.23.1

LOANS AND CREDIT QUALITY - Loan Modifications with Subsequent Default, by Loan Modification (Details) - Consumer Loan - Single family $ in Thousands	3 Months Ended
	Mar. 31, 2023 USD ($)
Significant Payment Delay
Financing Receivable, Troubled Debt Restructuring [Line Items]
Loan modifications with subsequent default	$ 0
Term Extension
Financing Receivable, Troubled Debt Restructuring [Line Items]
Loan modifications with subsequent default	0
Interest Rate Reduction and Term Extension
Financing Receivable, Troubled Debt Restructuring [Line Items]
Loan modifications with subsequent default	0
Significant Payment Delay and Term Extension
Financing Receivable, Troubled Debt Restructuring [Line Items]
Loan modifications with subsequent default	2,030
Interest Rate Reduction, Significant Payment Delay and Term Extension
Financing Receivable, Troubled Debt Restructuring [Line Items]
Loan modifications with subsequent default	$ 623

X

- Definition

Financing Receivable, Excluding Accrued Interest, Modified, Subsequent Default

+ References

No definition available.

+ Details

Name:	hmst_FinancingReceivableExcludingAccruedInterestModifiedSubsequentDefault
Namespace Prefix:	hmst_
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_FinancingReceivableModificationsLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

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:

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=hmst_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: