XML 72 R63.htm IDEA: XBRL DOCUMENT v3.22.2.2

MORTGAGE BANKING OPERATIONS - Revenue from Mortgage Servicing (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Servicing income, net:
Servicing fees and other	$ 7,673	$ 7,897	$ 25,501	$ 26,055
Amortization of single family MSRs	(2,112)	(4,579)	(8,052)	(15,453)
Amortization of multifamily and SBA MSRs	(1,828)	(1,758)	(5,877)	(5,235)
Net servicing income	3,733	1,560	11,572	5,367
Risk management, single family MSRs:
Changes in fair value of MSRs due to assumptions	1,989	747	16,615	7,186
Mortgage servicing rights, risk management	(992)	454	(1,866)	(674)
Loan servicing income	2,741	2,014	9,706	4,693
Servicing contracts
Risk management, single family MSRs:
Net gain (loss) from economic hedging	$ (2,981)	$ (293)	$ (18,481)	$ (7,860)

X

- Definition

Changes in the fair value of mortgage servicing rights due to modeled amortization.

+ References

No definition available.

+ Details

Name:	hmst_ChangesInFairValueOfMortgageServicingRightsDueToModeledAmortization
Namespace Prefix:	hmst_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- Definition

Derivative, Gain (Loss) on Derivative, Net, And Debt Securities, Trading, Unrealized Gain (Loss)

+ References

No definition available.

+ Details

Name:	hmst_DerivativeGainLossOnDerivativeNetAndDebtSecuritiesTradingUnrealizedGainLoss
Namespace Prefix:	hmst_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

X

- Definition

Changes in MSR fair value due to changes in model inputs and assumptions, net of risk management derivatives.

+ References

No definition available.

+ Details

Name:	hmst_MortgageServicingRightsRiskManagement
Namespace Prefix:	hmst_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

X

- Definition

Servicing and other related fees, net of payments.

+ References

No definition available.

+ Details

Name:	hmst_NetServicingIncome
Namespace Prefix:	hmst_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

X

- Definition

Risk Management, Single Family MSRs [Abstract]

+ References

No definition available.

+ Details

Name:	hmst_RiskManagementSingleFamilyMSRsAbstract
Namespace Prefix:	hmst_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Servicing fees and other.

+ References

No definition available.

+ Details

Name:	hmst_ServicingFeesAndOther
Namespace Prefix:	hmst_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

X

- Definition

Servicing Fees Net, Including Discontinued Operations

+ References

No definition available.

+ Details

Name:	hmst_ServicingFeesNetIncludingDiscontinuedOperations
Namespace Prefix:	hmst_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

X

- Definition

Servicing Income, Net [Abstract]

+ References

No definition available.

+ Details

Name:	hmst_ServicingIncomeNetAbstract
Namespace Prefix:	hmst_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

The periodic amortization (in proportion to and over the period of estimated net servicing income or loss) of capitalized servicing rights, which contractually entitle the servicer to receive fees and ancillary revenues for performing billing, collection, disbursement and recordkeeping services in connection with a mortgage portfolio. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 28
-Subparagraph (b)
-URI https://asc.fasb.org/extlink&oid=126954810&loc=d3e3602-108585

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 860
-SubTopic 50
-Section 50
-Paragraph 4
-Subparagraph (a)(4)
-URI https://asc.fasb.org/extlink&oid=128311188&loc=d3e122739-111746

+ Details

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

X

- Definition

Amount of increase (decrease) from changes in fair value classified as other for a contract to service financial assets under which the benefits of servicing are expected to more than adequately compensate the servicer.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 860
-SubTopic 50
-Section 50
-Paragraph 3
-Subparagraph (a)(4)(ii)
-URI https://asc.fasb.org/extlink&oid=128311188&loc=d3e122625-111746

+ Details

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

X

- Details

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