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v3.25.2

BORROWINGS (Details) $ in Millions | 3 Months Ended | 12 Months Ended
--- | --- | ---
Mar. 31, 2025 USD ($) | Dec. 31, 2024 USD ($) item
Secured Debt |  |
BORROWINGS |  |
Fixed rate FHLB term borrowings |  | $ 250.0
Revolving credit facility | Community Financial System Inc. |  |
BORROWINGS |  |
Maximum borrowing capacity | $ 50.0 |
Debt Instrument, Variable Interest Rate, Type [Extensible Enumeration] | us-gaap:SecuredOvernightFinancingRateSofrMember |
Variable interest rate, basis spread | 2.25% |
Line of credit facility, extension period | 364 days |
Debt Borrowing 50.0 Million Putable At Option of Lender | Secured Debt |  |
BORROWINGS |  |
Fixed rate FHLB term borrowings |  | $ 50.0
FHLB Term borrowings, Number of advances | item |  | 3
Debt Borrowing 50.0 Million Putable At Option of Lender | Secured Debt | Minimum |  |
BORROWINGS |  |
FHLB fixed rate advance (in percent) |  | 4.38%
Debt Borrowing 50.0 Million Putable At Option of Lender | Secured Debt | Maximum |  |
BORROWINGS |  |
FHLB fixed rate advance (in percent) |  | 4.47%
Debt Borrowing 100.0 Million Putable At Option of Lender | Secured Debt |  |
BORROWINGS |  |
FHLB fixed rate advance (in percent) |  | 3.73%
Fixed rate FHLB term borrowings |  | $ 100.0
FHLB Term borrowings, Number of advances | item |  | 1

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- Definition The number of tranches as part of the advances secured by the company from Federal Home Loan Bank's term borrowings during the period. + References No definition available. + Details
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- Definition Period of extension available to the borrower after the the original maturity date, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. + References No definition available. + Details
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- Definition Indicates type of variable interest rate on debt instrument. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 942 -SubTopic 470 -Name Accounting Standards Codification -Section 50 -Paragraph 3 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org/1943274/2147477734/942-470-50-3 + Details
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- Definition Rate of interest applicable on advance from Federal Home Loan Bank (FHLBank). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 942 -SubTopic 470 -Name Accounting Standards Codification -Section 45 -Paragraph 1 -Publisher FASB -URI https://asc.fasb.org/1943274/2147478878/942-470-45-1 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 942 -SubTopic 470 -Section 50 -Paragraph 3 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org/1943274/2147477734/942-470-50-3 + Details
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- Definition Amount of maximum advances or credit lines available from the Federal Home Loan Bank (FHLB). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 210 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(22)(b)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 942 -SubTopic 210 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03(13)(3)(a)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147478546/942-210-S99-1 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 942 -SubTopic 470 -Name Accounting Standards Codification -Section 45 -Paragraph 1 -Publisher FASB -URI https://asc.fasb.org/1943274/2147478878/942-470-45-1 + Details
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