MORTGAGE SERVICING RIGHTS - Key Assumptions Used in Measuring Fair Value of Mortgage Servicing Rights (Details)	9 Months Ended	12 Months Ended
Sep. 30, 2025	Dec. 31, 2024
MORTGAGE SERVICING RIGHTS [Abstract]
Weighted average constant prepayment rate	8.22%	7.16%
Weighted average discount rate	9.70%	10.17%
Weighted average life in years	7 years 7 months 28 days	8 years 1 month 2 days

Discount rate used to estimate the fair value of servicing assets and servicing liabilities.

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Topic 860
-SubTopic 50
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (d)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481229/860-50-50-2

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- Definition

Estimated rate of prepayments of principal on servicing assets and servicing liabilities.

+ References

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- Definition

Weighted average life of financial assets and financial liabilities, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 860
-SubTopic 50
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (d)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481229/860-50-50-2

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- References

No definition available.

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