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LOANS AND RELATED ALLOWANCE FOR CREDIT LOSSES - Schedule of Collateral Dependent Loans (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Allowance for loan losses
Nonaccrual Amortized Cost	$ 31,114	$ 35,326
Real Estate
Allowance for loan losses
Nonaccrual Amortized Cost	7,878	31,409
Investment Securities/Cash
Allowance for loan losses
Nonaccrual Amortized Cost	0	0
Other
Allowance for loan losses
Nonaccrual Amortized Cost	16,931	1,040
Construction and commercial multifamily | Construction
Allowance for loan losses
Nonaccrual Amortized Cost	0	0
Construction and commercial multifamily | Construction | Real Estate
Allowance for loan losses
Nonaccrual Amortized Cost	0	9,429
Construction and commercial multifamily | Construction | Investment Securities/Cash
Allowance for loan losses
Nonaccrual Amortized Cost	0	0
Construction and commercial multifamily | Construction | Other
Allowance for loan losses
Nonaccrual Amortized Cost	0	0
Construction and commercial multifamily | Commercial multifamily
Allowance for loan losses
Nonaccrual Amortized Cost	0	187
Construction and commercial multifamily | Commercial multifamily | Real Estate
Allowance for loan losses
Nonaccrual Amortized Cost	0	188
Construction and commercial multifamily | Commercial multifamily | Investment Securities/Cash
Allowance for loan losses
Nonaccrual Amortized Cost	0	0
Construction and commercial multifamily | Commercial multifamily | Other
Allowance for loan losses
Nonaccrual Amortized Cost	0	0
Commercial real estate loans | Commercial real estate owner occupied
Allowance for loan losses
Nonaccrual Amortized Cost	2,202	4,221
Commercial real estate loans | Commercial real estate owner occupied | Real Estate
Allowance for loan losses
Nonaccrual Amortized Cost	2,793	4,466
Commercial real estate loans | Commercial real estate owner occupied | Investment Securities/Cash
Allowance for loan losses
Nonaccrual Amortized Cost	0	0
Commercial real estate loans | Commercial real estate owner occupied | Other
Allowance for loan losses
Nonaccrual Amortized Cost	0	0
Commercial real estate loans | Commercial real estate non-owner occupied
Allowance for loan losses
Nonaccrual Amortized Cost	191	8,877
Commercial real estate loans | Commercial real estate non-owner occupied | Real Estate
Allowance for loan losses
Nonaccrual Amortized Cost	384	9,501
Commercial real estate loans | Commercial real estate non-owner occupied | Investment Securities/Cash
Allowance for loan losses
Nonaccrual Amortized Cost	0	0
Commercial real estate loans | Commercial real estate non-owner occupied | Other
Allowance for loan losses
Nonaccrual Amortized Cost	0	0
Commercial and industrial loans
Allowance for loan losses
Nonaccrual Amortized Cost	16,992	6,747
Commercial and industrial loans | Real Estate
Allowance for loan losses
Nonaccrual Amortized Cost	288	526
Commercial and industrial loans | Investment Securities/Cash
Allowance for loan losses
Nonaccrual Amortized Cost	0	0
Commercial and industrial loans | Other
Allowance for loan losses
Nonaccrual Amortized Cost	16,931	1,040
Residential real estate | Residential real estate
Allowance for loan losses
Nonaccrual Amortized Cost	8,901	10,698
Residential real estate | Residential real estate | Real Estate
Allowance for loan losses
Nonaccrual Amortized Cost	3,910	7,035
Residential real estate | Residential real estate | Investment Securities/Cash
Allowance for loan losses
Nonaccrual Amortized Cost	0	0
Residential real estate | Residential real estate | Other
Allowance for loan losses
Nonaccrual Amortized Cost	0	0
Consumer loans | Home equity
Allowance for loan losses
Nonaccrual Amortized Cost	1,568	1,901
Consumer loans | Home equity | Real Estate
Allowance for loan losses
Nonaccrual Amortized Cost	501	262
Consumer loans | Home equity | Investment Securities/Cash
Allowance for loan losses
Nonaccrual Amortized Cost	0	0
Consumer loans | Home equity | Other
Allowance for loan losses
Nonaccrual Amortized Cost	0	0
Consumer loans | Consumer other
Allowance for loan losses
Nonaccrual Amortized Cost	1,260	2,695
Consumer loans | Consumer other | Real Estate
Allowance for loan losses
Nonaccrual Amortized Cost	2	2
Consumer loans | Consumer other | Investment Securities/Cash
Allowance for loan losses
Nonaccrual Amortized Cost	0	0
Consumer loans | Consumer other | Other
Allowance for loan losses
Nonaccrual Amortized Cost	$ 0	$ 0

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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
-Publisher FASB
-Name Accounting Standards Codification
-Topic 326
-SubTopic 20
-Section 50
-Paragraph 16
-Subparagraph (a)
-URI https://asc.fasb.org/extlink&oid=124255953&loc=SL82919258-210447

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