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ALLOWANCE FOR CREDIT LOSSES - Additional Information (Details) - USD ($)	Jun. 30, 2022	Dec. 31, 2021	Sep. 30, 2021
Financing Receivable Recorded Investment Past Due [Line Items]
Accrued interest receivable	$ 23,468,000	$ 21,589,000
Individually evaluated loans balance	12,500,000	19,887,000
Individually evaluated include Nonaccrual loans	13,200,000	15,600,000
Recording charge-off		7,400,000
Individually evaluated non-accrual loans performing troubled debt restructured	0	2,500,000
Allowance allocated to troubled debt restructured loans	2,500,000	0
Commercial Real Estate Portfolio Segment [Member]
Financing Receivable Recorded Investment Past Due [Line Items]
Individually evaluated loans balance			$ 12,500,000
Loans [Member]
Financing Receivable Recorded Investment Past Due [Line Items]
Accrued interest receivable	$ 21,400,000	$ 19,100,000

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- Definition

Allowance on troubled debt restructured loans in financing receivables.

+ References

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- Definition

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- Definition

Impaired financing receivable related allowance charge-off.

+ References

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- Definition

Individually evaluated non accrual loans performing troubled debt restructuring.

+ References

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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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- Definition

Unpaid principal balance of impaired financing receivables for which there is a related allowance for credit losses.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 15
-Subparagraph (a)(4)
-URI https://asc.fasb.org/extlink&oid=123577603&loc=d3e5212-111524

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- Definition

Carrying amount as of the balance sheet date of interest earned but not received. Also called accrued interest or accrued interest receivable.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(3)(a)(4))
-URI https://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682

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