XML 68 R58.htm IDEA: XBRL DOCUMENT
v3.22.1

MORTGAGE BANKING OPERATIONS - Mortgage Repurchase Liability (Details) - Representations and warranties reserve for loan receivables - USD ($) $ in Thousands | 3 Months Ended
--- | ---
Mar. 31, 2022 | Mar. 31, 2021
Mortgage Repurchase Losses [Roll Forward] |  |
Balance, beginning of period | $ 1,312 | $ 2,122
Additions, net of adjustments | 358 | (20)
Realized (losses) recoveries, net | (32) | (161)
Balance, end of period | $ 1,638 | $ 1,941

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: |