Amount, excluding unamortized premium (discount) and debt issuance cost, of long-term debt. Excludes lease obligation.

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

LONG-TERM DEBT - Narrative (Details) - USD ($) $ in Thousands	Jan. 19, 2022	Jun. 30, 2022	Dec. 31, 2021
Debt Instrument [Line Items]
Outstanding balance, subordinated notes		$ 224,227	$ 126,026
Subordinated Debt
Debt Instrument [Line Items]
Outstanding balance, subordinated notes		62,000
3.5% Subordinated Notes Due 2032 \| Subordinated Debt
Debt Instrument [Line Items]
Stated interest rate (percent)	0.035%
Basis spread on variable rate	2.15%
Outstanding balance, subordinated notes		$ 98,000
Senior Notes 6.50% Due 2026 \| Senior Notes
Debt Instrument [Line Items]
Stated interest rate (percent)		6.50%	6.50%
Outstanding balance, subordinated notes		$ 64,000	$ 64,000
Home Street Statutory Trust Subordinated Debt Securities \| Subordinated Debt
Debt Instrument [Line Items]
Outstanding balance, subordinated notes			$ 62,000