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NON-PERFORMING ASSETS INCLUDING TROUBLED DEBT RESTRUCTURINGS - Additional information (Details)		12 Months Ended
	Jun. 30, 2020 USD ($)	Dec. 31, 2021 USD ($) loan	Dec. 31, 2020 USD ($) loan
Aggregate of multiple consecutive maturity date extensions delay in payment, days		120 days
ALL reserve for TDR's		$ 132,000	$ 103,000
Decrease in loan modifications to COVID-19	$ 200,000,000
Increase in loan modifications to COVID-19		$ (41,300,000)
Percentage of increase in balance of loan modifications		84.20%
Accrued interest receivable due to loan modification		$ 541,000,000,000
Second payment deferral
Number of loans | loan		5
Payment relief that have been granted		$ 7,500,000
Complete payment deferrals
Number of loans | loan		5	59
Residential Real Estate [Member]
Other Assets, Noncurrent		$ 0
Residential Mortgages [Member]
Mortgage Loans in Process of Foreclosure, Amount		$ 116,000

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- Definition

The amount of accrued interest receivable due to loan modification.

+ References

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- Definition

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- Definition

Allowance for loan and lease losses pertaining to troubled debt restructurings.

+ References

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- Definition

Amount of increase (decrease) in financing receivable modified in response to COVID-19.

+ References

No definition available.

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- Definition

Number of financing receivables that have been modified in response to COVID-19.

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Amount of payment relief that have been granted in response to COVID-19.

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- Definition

Percentage of increase (decrease) in financing receivable modified in response to COVID-19.

+ References

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- Definition

Amount of increase (decrease) in financing receivable modified from troubled debt restructuring.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 33
-Subparagraph (a)(2)
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- Definition

Recorded investment of consumer mortgage loan receivables secured by residential real estate properties for which formal foreclosure proceedings are in process.

+ References

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Amount of noncurrent assets classified as other.

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