FAIR VALUE (Tables)
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6 Months Ended |
Jun. 30, 2026 |
| FAIR VALUE |
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| Schedule of fair value measured on a recurring basis |
| | | | | | | | | | | | | | | June 30, 2026 | | | | | | | | | | | | Total Fair | (000’s omitted) | | Level 1 | | Level 2 | | Level 3 | | Value | Available-for-sale investment securities: | | | | | | | | | | | | | U.S. Treasury and agency securities | | $ | 2,143,656 | | $ | 75,725 | | $ | 0 | | $ | 2,219,381 | Obligations of state and political subdivisions | | | 0 | | | 435,993 | | | 0 | | | 435,993 | Government agency mortgage-backed securities | | | 0 | | | 284,451 | | | 0 | | | 284,451 | Corporate debt securities | | | 0 | | | 8,471 | | | 0 | | | 8,471 | Government agency collateralized mortgage obligations | | | 0 | | | 9,667 | | | 0 | | | 9,667 | Total available-for-sale investment securities | | | 2,143,656 | | | 814,307 | | | 0 | | | 2,957,963 | Equity securities | | | 3,661 | | | 0 | | | 0 | | | 3,661 | Mortgage loans held for sale | | | 0 | | | 1,571 | | | 0 | | | 1,571 | Commitments to originate real estate loans for sale | | | 0 | | | 0 | | | 391 | | | 391 | Interest rate swap agreements asset | | | 0 | | | 4,137 | | | 0 | | | 4,137 | Interest rate swap agreements liability | | | 0 | | | (8,054) | | | 0 | | | (8,054) | Total | | $ | 2,147,317 | | $ | 811,961 | | $ | 391 | | $ | 2,959,669 |
| | | | | | | | | | | | | | | December 31, 2025 | | | | | | | | | | | | Total Fair | (000’s omitted) | | Level 1 | | Level 2 | | Level 3 | | Value | Available-for-sale investment securities: | | | | | | | | | | | | | U.S. Treasury and agency securities | | $ | 2,133,932 | | $ | 61,294 | | $ | 0 | | $ | 2,195,226 | Obligations of state and political subdivisions | | | 0 | | | 391,917 | | | 0 | | | 391,917 | Government agency mortgage-backed securities | | | 0 | | | 278,885 | | | 0 | | | 278,885 | Corporate debt securities | | | 0 | | | 4,912 | | | 0 | | | 4,912 | Government agency collateralized mortgage obligations | | | 0 | | | 4,401 | | | 0 | | | 4,401 | Total available-for-sale investment securities | | | 2,133,932 | | | 741,409 | | | 0 | | | 2,875,341 | Equity securities | | | 4,414 | | | 0 | | | 0 | | | 4,414 | Mortgage loans held for sale | | | 0 | | | 108 | | | 0 | | | 108 | Commitments to originate real estate loans for sale | | | 0 | | | 0 | | | 154 | | | 154 | Forward sales commitments | | | 0 | | | 15 | | | 0 | | | 15 | Interest rate swap agreements asset | | | 0 | | | 7,524 | | | 0 | | | 7,524 | Interest rate swap agreements liability | | | 0 | | | (7,524) | | | 0 | | | (7,524) | Total | | $ | 2,138,346 | | $ | 741,532 | | $ | 154 | | $ | 2,880,032 |
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| Schedule of assets and liabilities measured on a non-recurring basis |
| | | | | | | | | | | | | | | | | | | | | | | | | | | June 30, 2026 | | December 31, 2025 | | | | | | | | | | | | Total Fair | | | | | | | | | | Total Fair | (000's omitted) | | Level 1 | | Level 2 | | Level 3 | | Value | | Level 1 | | Level 2 | | Level 3 | | Value | Individually assessed loans | | $ | 0 | | $ | 0 | | $ | 2,402 | | $ | 2,402 | | $ | 0 | | $ | 0 | | $ | 14,361 | | $ | 14,361 | Other real estate owned | | | 0 | | | 0 | | | 5,354 | | | 5,354 | | | 0 | | | 0 | | | 5,778 | | | 5,778 | Mortgage servicing rights | | | 0 | | | 0 | | | 908 | | | 908 | | | 0 | | | 0 | | | 853 | | | 853 | Contingent consideration | | | 0 | | | 0 | | | (7,345) | | | (7,345) | | | 0 | | | 0 | | | (9,220) | | | (9,220) | Total | | $ | 0 | | $ | 0 | | $ | 1,319 | | $ | 1,319 | | $ | 0 | | $ | 0 | | $ | 11,772 | | $ | 11,772 |
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| Schedule of significant unobservable inputs, fair value valuation techniques |
| | | | | | | | | | | | | | | | | | | Significant Unobservable | | | | Fair Value at | | | | | | Input Range | | (000's omitted, except per loan data) | | June 30, 2026 | | Valuation Technique | | Significant Unobservable Inputs | | (Weighted Average) | | Individually assessed loans | | $ | 2,402 | | Fair value of collateral | | Estimated cost of disposal/market adjustment | | 23.3% - 89.0% (33.8%) | | Other real estate owned | | | 5,354 | | Fair value of collateral | | Estimated cost of disposal/market adjustment | | 27.2 | % | Commitments to originate real estate loans for sale | | | 391 | | Discounted cash flow | | Embedded servicing value | | 1.0 | % | Mortgage servicing rights | | | 908 | | Discounted cash flow | | Weighted average constant prepayment rate | | 23.8% - 24.7% (24.6%) | | | | | | | | | Weighted average discount rate | | 5.2% - 5.7% (5.6%) | | Contingent consideration | | | (7,345) | | Discounted cash flow | | Discount rate | | 11.9% - 18.4% (13.0%) | | | | | | | | | Probability of achievement | | 30.0% - 82.0% (57.0%) | |
| | | | | | | | | | | | | | | | | | | Significant Unobservable | | | | Fair Value at | | | | | | Input Range | | (000's omitted, except per loan data) | | December 31, 2025 | | Valuation Technique | | Significant Unobservable Inputs | | (Weighted Average) | | Individually assessed loans | | $ | 14,361 | | Fair value of collateral | | Estimated cost of disposal/market adjustment | | 27.2 | % | Other real estate owned | | | 5,778 | | Fair value of collateral | | Estimated cost of disposal/market adjustment | | 9.0% - 27.2% (26.8%) | | Commitments to originate real estate loans for sale | | | 154 | | Discounted cash flow | | Embedded servicing value | | 1.0 | % | Mortgage servicing rights | | | 853 | | Discounted cash flow | | Weighted average constant prepayment rate | | 22.6% - 25.5% (22.8%) | | | | | | | | | Weighted average discount rate | | 4.9% - 5.5% (5.5%) | | Contingent consideration | | | (9,220) | | Discounted cash flow | | Discount rate | | 12.2% - 18.4% (13.6%) | | | | | | | | | Probability of achievement | | 30.0% - 82.0% (65.6%) | |
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| Schedule of carrying amounts and estimated fair values of other financial instruments |
| | | | | | | | | | | | | | | June 30, 2026 | | December 31, 2025 | | | Carrying | | Fair | | Carrying | | Fair | (000’s omitted) | | Value | | Value | | Value | | Value | Financial assets: | | | | | | | | | | | | | Net loans | | $ | 11,191,128 | | $ | 10,995,577 | | $ | 10,861,836 | | $ | 10,745,154 | Held-to-maturity securities | | | 1,478,386 | | | 1,372,481 | | | 1,454,166 | | | 1,370,464 | Other investment securities | | | 5,194 | | | 5,194 | | | 0 | | | 0 | Financial liabilities: | | | | | | | | | | | | | Deposits | | | 14,710,409 | | | 14,699,447 | | | 14,387,085 | | | 14,377,084 | Securities sold under agreement to repurchase, short-term | | | 157,577 | | | 157,577 | | | 231,163 | | | 231,163 | Other Federal Home Loan Bank borrowings | | | 425,576 | | | 427,624 | | | 450,439 | | | 456,821 |
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