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Fair Value Measurements - Carrying Values and Fair Values of Financial Instruments (Details) - USD ($) $ in Thousands | Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022
--- | --- | --- | ---
ASSETS |  |  |
Securities available for sale | $ 987,591 | $ 970,391 |
Portfolio loans, net | 7,641,464 | 7,545,375 |
Derivative financial assets | 60,890 | 63,018 |
LIABILITIES |  |  |
Junior subordinated debt securities | 49,418 | 49,358 | $ 54,453
Derivative financial liabilities | 70,860 | 78,293 |
Carrying Value |  |  |
ASSETS |  |  |
Cash and due from banks, including interest-bearing deposits | 244,820 | 233,612 |
Securities available for sale | 987,591 | 970,391 |
Loans held for sale |  | 153 |
Portfolio loans, net | 7,641,464 | 7,545,375 |
Collateral receivable | 2,034 | 5,356 |
Securities held in a deferred compensation plan | 10,876 | 9,399 |
Mortgage servicing rights | 5,646 | 6,345 |
LIABILITIES |  |  |
Deposits | 7,783,117 | 7,521,769 |
Collateral payable | 52,516 | 50,920 |
Short-term borrowings | 150,000 | 415,000 |
Long-term borrowings | 50,896 | 39,277 |
Junior subordinated debt securities | 49,418 | 49,358 |
Carrying Value | Interest rate swap contracts - commercial loans |  |  |
ASSETS |  |  |
Derivative financial assets | 60,890 |  |
LIABILITIES |  |  |
Derivative financial liabilities | 61,271 | 63,554 |
Carrying Value | Interest rate swap contracts—commercial loans |  |  |
ASSETS |  |  |
Derivative financial assets |  | 63,018 |
Carrying Value | Interest rate swap contracts - cash flow hedge |  |  |
LIABILITIES |  |  |
Derivative financial liabilities | 9,589 | 14,739 |
Fair Value Measurements |  |  |
ASSETS |  |  |
Cash and due from banks, including interest-bearing deposits | 244,820 | 233,612 |
Securities available for sale | 987,591 | 970,391 |
Loans held for sale |  | 153 |
Portfolio loans, net | 7,362,898 | 7,263,270 |
Collateral receivable | 2,034 | 5,356 |
Securities held in a deferred compensation plan | 10,876 | 9,399 |
Mortgage servicing rights | 8,533 | 8,704 |
LIABILITIES |  |  |
Deposits | 7,778,740 | 7,511,598 |
Collateral payable | 52,516 | 50,920 |
Short-term borrowings | 150,000 | 415,000 |
Long-term borrowings | 50,652 | 38,995 |
Junior subordinated debt securities | 49,418 | 49,358 |
Fair Value Measurements | Interest rate swap contracts - commercial loans |  |  |
ASSETS |  |  |
Derivative financial assets | 60,890 |  |
LIABILITIES |  |  |
Derivative financial liabilities | 61,271 | 63,554 |
Fair Value Measurements | Interest rate swap contracts—commercial loans |  |  |
ASSETS |  |  |
Derivative financial assets |  | 63,018 |
Fair Value Measurements | Interest rate swap contracts - cash flow hedge |  |  |
LIABILITIES |  |  |
Derivative financial liabilities | 9,589 | 14,739 |
Fair Value Measurements | Level 1 |  |  |
ASSETS |  |  |
Cash and due from banks, including interest-bearing deposits | 244,820 | 233,612 |
Securities available for sale | 93,944 | 134,796 |
Loans held for sale |  | 0 |
Portfolio loans, net | 0 | 0 |
Collateral receivable | 2,034 | 5,356 |
Securities held in a deferred compensation plan | 10,876 | 9,399 |
Mortgage servicing rights | 0 | 0 |
LIABILITIES |  |  |
Deposits | 5,916,154 | 5,940,117 |
Collateral payable | 52,516 | 50,920 |
Short-term borrowings | 0 | 0 |
Long-term borrowings | 0 | 0 |
Junior subordinated debt securities | 0 | 0 |
Fair Value Measurements | Level 1 | Interest rate swap contracts - commercial loans |  |  |
ASSETS |  |  |
Derivative financial assets | 0 |  |
LIABILITIES |  |  |
Derivative financial liabilities | 0 | 0 |
Fair Value Measurements | Level 1 | Interest rate swap contracts—commercial loans |  |  |
ASSETS |  |  |
Derivative financial assets |  | 0 |
Fair Value Measurements | Level 1 | Interest rate swap contracts - cash flow hedge |  |  |
LIABILITIES |  |  |
Derivative financial liabilities | 0 | 0 |
Fair Value Measurements | Level 2 |  |  |
ASSETS |  |  |
Cash and due from banks, including interest-bearing deposits | 0 | 0 |
Securities available for sale | 893,647 | 835,595 |
Loans held for sale |  | 153 |
Portfolio loans, net | 0 | 0 |
Collateral receivable | 0 | 0 |
Securities held in a deferred compensation plan | 0 | 0 |
Mortgage servicing rights | 0 | 0 |
LIABILITIES |  |  |
Deposits | 1,862,586 | 1,571,481 |
Collateral payable | 0 | 0 |
Short-term borrowings | 150,000 | 415,000 |
Long-term borrowings | 50,652 | 38,995 |
Junior subordinated debt securities | 49,418 | 49,358 |
Fair Value Measurements | Level 2 | Interest rate swap contracts - commercial loans |  |  |
ASSETS |  |  |
Derivative financial assets | 60,890 |  |
LIABILITIES |  |  |
Derivative financial liabilities | 61,271 | 63,554 |
Fair Value Measurements | Level 2 | Interest rate swap contracts—commercial loans |  |  |
ASSETS |  |  |
Derivative financial assets |  | 63,018 |
Fair Value Measurements | Level 2 | Interest rate swap contracts - cash flow hedge |  |  |
LIABILITIES |  |  |
Derivative financial liabilities | 9,589 | 14,739 |
Fair Value Measurements | Level 3 |  |  |
ASSETS |  |  |
Cash and due from banks, including interest-bearing deposits | 0 | 0 |
Securities available for sale | 0 | 0 |
Loans held for sale |  | 0 |
Portfolio loans, net | 7,362,898 | 7,263,270 |
Collateral receivable | 0 | 0 |
Securities held in a deferred compensation plan | 0 | 0 |
Mortgage servicing rights | 8,533 | 8,704 |
LIABILITIES |  |  |
Deposits | 0 | 0 |
Collateral payable | 0 | 0 |
Short-term borrowings | 0 | 0 |
Long-term borrowings | 0 | 0 |
Junior subordinated debt securities | 0 | 0 |
Fair Value Measurements | Level 3 | Interest rate swap contracts - commercial loans |  |  |
ASSETS |  |  |
Derivative financial assets | 0 |  |
LIABILITIES |  |  |
Derivative financial liabilities | 0 | 0 |
Fair Value Measurements | Level 3 | Interest rate swap contracts—commercial loans |  |  |
ASSETS |  |  |
Derivative financial assets |  | 0 |
Fair Value Measurements | Level 3 | Interest rate swap contracts - cash flow hedge |  |  |
LIABILITIES |  |  |
Derivative financial liabilities | $ 0 | $ 0 |

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