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LOANS AND CREDIT QUALITY - Loans on Nonaccrual with No Related Allowance (Details) - USD ($) $ in Thousands	Mar. 31, 2025	Dec. 31, 2024
Financing Receivable, Nonaccrual [Line Items]
Nonaccrual with no related ACL	$ 34,069	$ 32,742
Total Nonaccrual	55,791	54,994
CRE
Financing Receivable, Nonaccrual [Line Items]
Nonaccrual with no related ACL	21,800	21,966
Total Nonaccrual	21,800	21,966
CRE | Non-owner occupied CRE
Financing Receivable, Nonaccrual [Line Items]
Nonaccrual with no related ACL	16,089	16,230
Total Nonaccrual	16,089	16,230
CRE | Multifamily
Financing Receivable, Nonaccrual [Line Items]
Nonaccrual with no related ACL	1,915	1,915
Total Nonaccrual	1,915	1,915
CRE | CRE construction
Financing Receivable, Nonaccrual [Line Items]
Nonaccrual with no related ACL	3,796	3,821
Total Nonaccrual	3,796	3,821
CRE | Multifamily construction
Financing Receivable, Nonaccrual [Line Items]
Total Nonaccrual	0	0
Commercial and industrial loans
Financing Receivable, Nonaccrual [Line Items]
Nonaccrual with no related ACL	11,438	9,670
Total Nonaccrual	26,967	26,901
Commercial and industrial loans | Owner occupied CRE
Financing Receivable, Nonaccrual [Line Items]
Nonaccrual with no related ACL	932	1,161
Total Nonaccrual	932	1,161
Commercial and industrial loans | Commercial business
Financing Receivable, Nonaccrual [Line Items]
Nonaccrual with no related ACL	10,506	8,509
Total Nonaccrual	26,035	25,740
Consumer loans
Financing Receivable, Nonaccrual [Line Items]
Nonaccrual with no related ACL	831	1,106
Total Nonaccrual	7,024	6,127
Consumer loans | Single family
Financing Receivable, Nonaccrual [Line Items]
Nonaccrual with no related ACL	831	1,106
Total Nonaccrual	3,348	2,990
Consumer loans | Home equity and other
Financing Receivable, Nonaccrual [Line Items]
Nonaccrual with no related ACL	0	0
Total Nonaccrual	$ 3,676	$ 3,137

X

- Definition

Amortized cost excluding accrued interest, of financing receivable on nonaccrual status. Excludes net investment in lease.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 16
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479319/326-20-50-16

+ Details

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X

- Definition

Amortized cost excluding accrued interest, of financing receivable on nonaccrual status with no allowance for credit loss. Excludes net investment in lease.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 16
-Subparagraph (d)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479319/326-20-50-16

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- Definition

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+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 16
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479319/326-20-50-16

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