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LOANS AND CREDIT QUALITY - Collateral Dependent Loans (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total LHFI	$ 7,426,320	$ 5,542,849
Commercial and industrial loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total LHFI	6,064,612	4,476,440
Commercial and industrial loans | Commercial and Industrial Sector
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total LHFI	803,110	859,578
Commercial and industrial loans | Owner occupied CRE
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total LHFI	443,363	457,706
Commercial and industrial loans | Commercial business
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total LHFI	359,747	401,872
Consumer loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total LHFI	1,361,708	1,066,409
Consumer loans | Single family
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total LHFI	1,009,001	763,331
Consumer loans | Home equity and other
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total LHFI	352,707	303,078
Land
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total LHFI		1,473
Land | Commercial and Industrial Sector
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total LHFI	1,173
Land | Commercial and industrial loans | Commercial and Industrial Sector
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total LHFI		1,473
Land | Commercial and industrial loans | Owner occupied CRE
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total LHFI	1,111	1,111
Land | Commercial and industrial loans | Commercial business
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total LHFI	62	362
Land | Consumer loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total LHFI		0
Land | Consumer loans | Single family
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total LHFI		0
Land | Consumer loans | Home equity and other
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total LHFI		0
1-4 Family
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total LHFI		1,644
1-4 Family | Commercial and Industrial Sector
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total LHFI	3,186
1-4 Family | Commercial and industrial loans | Commercial and Industrial Sector
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total LHFI		27
1-4 Family | Commercial and industrial loans | Owner occupied CRE
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total LHFI	0	0
1-4 Family | Commercial and industrial loans | Commercial business
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total LHFI	3,186	27
1-4 Family | Consumer loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total LHFI		1,617
1-4 Family | Consumer loans | Single family
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total LHFI		1,598
1-4 Family | Consumer loans | Home equity and other
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total LHFI		19
Non-residential real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total LHFI		3,018
Non-residential real estate | Commercial and Industrial Sector
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total LHFI	1,972
Non-residential real estate | Commercial and industrial loans | Commercial and Industrial Sector
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total LHFI		3,018
Non-residential real estate | Commercial and industrial loans | Owner occupied CRE
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total LHFI	1,410	2,456
Non-residential real estate | Commercial and industrial loans | Commercial business
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total LHFI	562	562
Non-residential real estate | Consumer loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total LHFI		0
Non-residential real estate | Consumer loans | Single family
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total LHFI		0
Non-residential real estate | Consumer loans | Home equity and other
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total LHFI		0
Total
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total LHFI		286
Total | Commercial and Industrial Sector
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total LHFI	0
Total | Commercial and industrial loans | Commercial and Industrial Sector
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total LHFI		286
Total | Commercial and industrial loans | Owner occupied CRE
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total LHFI	0	0
Total | Commercial and industrial loans | Commercial business
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total LHFI	0	286
Total | Consumer loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total LHFI		0
Total | Consumer loans | Single family
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total LHFI		0
Total | Consumer loans | Home equity and other
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total LHFI		0
Total
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total LHFI		6,421
Total | Commercial and Industrial Sector
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total LHFI	6,331
Total | Commercial and industrial loans | Commercial and Industrial Sector
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total LHFI		4,804
Total | Commercial and industrial loans | Owner occupied CRE
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total LHFI	2,521	3,567
Total | Commercial and industrial loans | Commercial business
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total LHFI	$ 3,810	1,237
Total | Consumer loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total LHFI		1,617
Total | Consumer loans | Single family
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total LHFI		1,598
Total | Consumer loans | Home equity and other
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total LHFI		$ 19

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+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 326
-SubTopic 20
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-Paragraph 5
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-Publisher FASB
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-URI https://asc.fasb.org/extlink&oid=124255953&loc=SL120267963-210447

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