XML 90 R80.htm IDEA: XBRL DOCUMENT v3.24.1.u1

SUBSEQUENT EVENTS (Details)	Apr. 30, 2024
Subsequent Event | FirstSun Bank | HomeStreet Bank
Subsequent Event [Line Items]
Merger, Equity, Exchange Ratio	0.3867

X

- Definition

Merger, Equity, Exchange Ratio

+ References

No definition available.

+ Details

Name:	hmst_MergerEquityExchangeRatio
Namespace Prefix:	hmst_
Data Type:	xbrli:pureItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Detail information of subsequent event by type. User is expected to use existing line items from elsewhere in the taxonomy as the primary line items for this disclosure, which is further associated with dimension and member elements pertaining to a subsequent event.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 830
-SubTopic 30
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147481674/830-30-50-2

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 855
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147483399/855-10-50-2

+ Details

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

X

- Details

Name:	us-gaap_SubsequentEventTypeAxis=us-gaap_SubsequentEventMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	srt_CounterpartyNameAxis=hmst_FirstSunBankMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_BusinessAcquisitionAxis=hmst_HomeStreetBankMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: