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LOAN COMMITMENTS AND OTHER RELATED ACTIVITIES - Contractual Amount of Financial Instruments with Off-Balance-Sheet Risk (Details) - USD ($) $ in Thousands	6 Months Ended	12 Months Ended
	Jun. 30, 2022	Dec. 31, 2021
LIHTC Investments
Other Commitments [Line Items]
Unfunded commitment	$ 14,900
Small Business Investment Companies
Other Commitments [Line Items]
Unfunded commitment	9,400
Other Investments
Other Commitments [Line Items]
Unfunded commitment	7,900
Commitments to extend credit
Other Commitments [Line Items]
Fixed Rate	48,805	$ 37,107
Variable Rate	185,478	136,921
Unused lines of credit
Other Commitments [Line Items]
Fixed Rate	4,454	6,894
Variable Rate	1,995,891	1,699,933
Letters of credit
Other Commitments [Line Items]
Fixed Rate	2,825	2,553
Variable Rate	$ 7,299	$ 5,617

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- Definition

Alternative Investments, Unfunded Investment Commitments

+ References

No definition available.

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- Definition

Reflects the amount of cash required to fully fund agreements to provide advances to borrowers and lessees at stated interest rates.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 825
-Section 50
-Paragraph 1
-Subparagraph (b)(2)
-URI https://asc.fasb.org/extlink&oid=126941378&loc=d3e61044-112788

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
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-Section 50
-Paragraph 2
-URI https://asc.fasb.org/extlink&oid=126941378&loc=d3e61082-112788

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- Definition

Reflects the amount of cash required to fully fund agreements to provide advances to borrowers and lessees at interest rates that increase or decrease depending on certain facts or circumstances.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 825
-Section 50
-Paragraph 2
-URI https://asc.fasb.org/extlink&oid=126941378&loc=d3e61082-112788

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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