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DERIVATIVE FINANCIAL INSTRUMENTS (Tables) | 9 Months Ended
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Sep. 30, 2025
DERIVATIVE FINANCIAL INSTRUMENTS |
Summary of fair value of the Corporation's derivative financial instruments as well as their classification on the consolidated balance sheet | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
(In Thousands) | At September 30, 2025 | ​ | At December 31, 2024
​ | Asset Derivatives | ​ | Liability Derivatives | ​ | Asset Derivatives | ​ | Liability Derivatives
​ | Notional | ​ | Fair | ​ | Notional | ​ | Fair | ​ | Notional | ​ | Fair | ​ | Notional | ​ | Fair
​ | Amount | ​ | Value (1) | ​ | Amount | ​ | Value (2) | ​ | Amount | ​ | Value (1) | ​ | Amount | ​ | Value (2)
Interest rate swap agreements | $ | 68,960 | ​ | $ | 1,483 | ​ | $ | 68,960 | ​ | $ | 1,483 | ​ | $ | 70,970 | ​ | $ | 2,385 | ​ | $ | 70,970 | ​ | $ | 2,385
RPA Out | ​ | 6,856 | ​ | ​ | 3 | ​ | ​ | 0 | ​ | ​ | 0 | ​ | ​ | 6,957 | ​ | ​ | 2 | ​ | ​ | 0 | ​ | ​ | 0
RPA In | ​ | 0 | ​ | ​ | 0 | ​ | ​ | 13,831 | ​ | ​ | 7 | ​ | ​ | 0 | ​ | ​ | 0 | ​ | ​ | 9,916 | ​ | ​ | 2
​
(1) | Included in other assets in the consolidated balance sheets.
(2) | Included in accrued interest and other liabilities in the consolidated balance sheets.

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- Definition Tabular disclosure of derivative instruments (including nonderivative instruments that are designated and qualify as hedging instruments) of (a) the location and amount of gains and losses reported in the statement of financial performance and (b) the location and fair value amounts of the instruments reported in the statement of financial position. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 815 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 4E -Publisher FASB -URI https://asc.fasb.org/1943274/2147480434/815-10-50-4E Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 815 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 4C -Publisher FASB -URI https://asc.fasb.org/1943274/2147480434/815-10-50-4C + Details
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