XML 66 R56.htm IDEA: XBRL DOCUMENT v3.21.2

MORTGAGE BANKING OPERATIONS - Mortgage Repurchase Liability (Details) - Representations and warranties reserve for loan receivables - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Mortgage Repurchase Losses [Roll Forward]
Balance, beginning of period	$ 1,612	$ 2,083	$ 2,122	$ 2,871
Additions, net of adjustments	(183)	252	(229)	(275)
Realized (losses) recoveries, net	14	(240)	(450)	(501)
Balance, end of period	$ 1,443	$ 2,095	$ 1,443	$ 2,095

X

- Definition

Loss Contingency Accrual, Realized (Loss) Recovery, Net

+ References

No definition available.

+ Details

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

X

- Definition

Amount of loss contingency liability.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 450
-SubTopic 20
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=121557415&loc=d3e14326-108349

+ Details

Name:	us-gaap_LossContingencyAccrualAtCarryingValue
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

X

- Definition

Amount charged against operating income increasing loss contingency liability, after adjustments to reduce previously estimated charges.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 450
-SubTopic 20
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=121557415&loc=d3e14326-108349

+ Details

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

X

- Definition

A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

+ References

No definition available.

+ Details

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

X

- Details

Name:	us-gaap_LossContingenciesByNatureOfContingencyAxis=hmst_RepresentationsAndWarrantiesReserveForLoanReceivablesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: