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v3.25.1

FAIR VALUE - Financial assets and liabilities accounted for at fair value on a recurring basis (Details) - USD ($) $ in Thousands | 3 Months Ended |
--- | --- | ---
Mar. 31, 2025 | Dec. 31, 2024
Available-for-sale investment securities |  |
Fair Value | $ 2,826,915 | $ 2,785,714
Unpaid principal value of mortgage loans held for sale | 500 | 1,500
Fair value, assets, levels transfers | 0 |
Transfers between Level 2 and Level 1 | 0 |
Transfers in of level 3 | 0 |
Transfers out of level 3 | 0 |
U.S. Treasury and agency securities |  |
Available-for-sale investment securities |  |
Fair Value | 2,134,917 | 2,083,786
Obligations of state and political subdivisions |  |
Available-for-sale investment securities |  |
Fair Value | 378,486 | 386,495
Government agency mortgage-backed securities |  |
Available-for-sale investment securities |  |
Fair Value | 299,791 | 301,224
Corporate debt securities |  |
Available-for-sale investment securities |  |
Fair Value | 7,771 | 7,697
Government agency collateralized mortgage obligations |  |
Available-for-sale investment securities |  |
Fair Value | 5,950 | 6,512
Recurring |  |
Available-for-sale investment securities |  |
Fair Value | 2,826,915 | 2,785,714
Equity securities | 2,599 | 2,354
Mortgage loans held for sale | 534 | 1,470
Total | 2,830,252 | 2,789,745
Recurring | Commitments to originate real estate loans for sale |  |
Available-for-sale investment securities |  |
Derivative asset | 204 | 215
Recurring | Interest rate swap agreements |  |
Available-for-sale investment securities |  |
Derivative asset | 3,534 | 2,664
Derivative liability | (3,534) | (2,664)
Recurring | Forward sales commitments |  |
Available-for-sale investment securities |  |
Derivative asset |  | (8)
Recurring | U.S. Treasury and agency securities |  |
Available-for-sale investment securities |  |
Fair Value | 2,134,917 | 2,083,786
Recurring | Obligations of state and political subdivisions |  |
Available-for-sale investment securities |  |
Fair Value | 378,486 | 386,495
Recurring | Government agency mortgage-backed securities |  |
Available-for-sale investment securities |  |
Fair Value | 299,791 | 301,224
Recurring | Corporate debt securities |  |
Available-for-sale investment securities |  |
Fair Value | 7,771 | 7,697
Recurring | Government agency collateralized mortgage obligations |  |
Available-for-sale investment securities |  |
Fair Value | 5,950 | 6,512
Recurring | Level 1 |  |
Available-for-sale investment securities |  |
Fair Value | 2,074,918 | 2,025,164
Equity securities | 2,599 | 2,354
Mortgage loans held for sale | 0 | 0
Total | 2,077,517 | 2,027,518
Recurring | Level 1 | Commitments to originate real estate loans for sale |  |
Available-for-sale investment securities |  |
Derivative asset | 0 | 0
Recurring | Level 1 | Interest rate swap agreements |  |
Available-for-sale investment securities |  |
Derivative asset | 0 | 0
Derivative liability | 0 | 0
Recurring | Level 1 | Forward sales commitments |  |
Available-for-sale investment securities |  |
Derivative asset |  | 0
Recurring | Level 1 | U.S. Treasury and agency securities |  |
Available-for-sale investment securities |  |
Fair Value | 2,074,918 | 2,025,164
Recurring | Level 1 | Obligations of state and political subdivisions |  |
Available-for-sale investment securities |  |
Fair Value | 0 | 0
Recurring | Level 1 | Government agency mortgage-backed securities |  |
Available-for-sale investment securities |  |
Fair Value | 0 | 0
Recurring | Level 1 | Corporate debt securities |  |
Available-for-sale investment securities |  |
Fair Value | 0 | 0
Recurring | Level 1 | Government agency collateralized mortgage obligations |  |
Available-for-sale investment securities |  |
Fair Value | 0 | 0
Recurring | Level 2 |  |
Available-for-sale investment securities |  |
Fair Value | 751,997 | 760,550
Equity securities | 0 | 0
Mortgage loans held for sale | 534 | 1,470
Total | 752,531 | 762,012
Recurring | Level 2 | Commitments to originate real estate loans for sale |  |
Available-for-sale investment securities |  |
Derivative asset | 0 | 0
Recurring | Level 2 | Interest rate swap agreements |  |
Available-for-sale investment securities |  |
Derivative asset | 3,534 | 2,664
Derivative liability | (3,534) | (2,664)
Recurring | Level 2 | Forward sales commitments |  |
Available-for-sale investment securities |  |
Derivative asset |  | (8)
Recurring | Level 2 | U.S. Treasury and agency securities |  |
Available-for-sale investment securities |  |
Fair Value | 59,999 | 58,622
Recurring | Level 2 | Obligations of state and political subdivisions |  |
Available-for-sale investment securities |  |
Fair Value | 378,486 | 386,495
Recurring | Level 2 | Government agency mortgage-backed securities |  |
Available-for-sale investment securities |  |
Fair Value | 299,791 | 301,224
Recurring | Level 2 | Corporate debt securities |  |
Available-for-sale investment securities |  |
Fair Value | 7,771 | 7,697
Recurring | Level 2 | Government agency collateralized mortgage obligations |  |
Available-for-sale investment securities |  |
Fair Value | 5,950 | 6,512
Recurring | Level 3 |  |
Available-for-sale investment securities |  |
Fair Value | 0 | 0
Equity securities | 0 | 0
Mortgage loans held for sale | 0 | 0
Total | 204 | 215
Recurring | Level 3 | Commitments to originate real estate loans for sale |  |
Available-for-sale investment securities |  |
Derivative asset | 204 | 215
Recurring | Level 3 | Interest rate swap agreements |  |
Available-for-sale investment securities |  |
Derivative asset | 0 | 0
Derivative liability | 0 | 0
Recurring | Level 3 | Forward sales commitments |  |
Available-for-sale investment securities |  |
Derivative asset |  | 0
Recurring | Level 3 | U.S. Treasury and agency securities |  |
Available-for-sale investment securities |  |
Fair Value | 0 | 0
Recurring | Level 3 | Obligations of state and political subdivisions |  |
Available-for-sale investment securities |  |
Fair Value | 0 | 0
Recurring | Level 3 | Government agency mortgage-backed securities |  |
Available-for-sale investment securities |  |
Fair Value | 0 | 0
Recurring | Level 3 | Corporate debt securities |  |
Available-for-sale investment securities |  |
Fair Value | 0 | 0
Recurring | Level 3 | Government agency collateralized mortgage obligations |  |
Available-for-sale investment securities |  |
Fair Value | $ 0 | $ 0

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- Definition Fair value, after the effects of master netting arrangements, of a financial asset or other contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. 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