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Fair Value Measurements - Carrying Values and Fair Values of Financial Instruments (Details) - USD ($) $ in Thousands | Sep. 30, 2025 | Dec. 31, 2024
--- | --- | ---
ASSETS |  |
Securities available for sale | $ 1,001,149 | $ 987,591
Portfolio loans, net | 7,882,852 | 7,641,464
Derivative financial assets | 35,758 | 60,890
LIABILITIES |  |
Junior subordinated debt securities | 49,463 | 49,418
Derivative financial liabilities | 39,241 | 70,860
Carrying Value |  |
ASSETS |  |
Cash and due from banks, including interest-bearing deposits | 196,228 | 244,820
Securities available for sale | 1,001,149 | 987,591
Portfolio loans, net | 7,882,852 | 7,641,464
Collateral receivable | 608 | 2,034
Securities held in a deferred compensation plan | 13,609 | 10,876
Mortgage servicing rights | 5,149 | 5,646
LIABILITIES |  |
Deposits | 7,921,943 | 7,783,117
Collateral payable | 22,660 | 52,516
Short-term borrowings | 135,000 | 150,000
Long-term borrowings | 50,836 | 50,896
Junior subordinated debt securities | 49,463 | 49,418
Carrying Value | Interest rate swaps - commercial loans |  |
ASSETS |  |
Derivative financial assets |  | 60,890
Carrying Value | Interest rate swap contracts - commercial loans |  |
ASSETS |  |
Derivative financial assets | 35,739 |
LIABILITIES |  |
Derivative financial liabilities | 36,042 | 61,271
Carrying Value | Interest rate swap contracts - cash flow hedge |  |
LIABILITIES |  |
Derivative financial liabilities | 3,199 | 9,589
Carrying Value | Interest rate lock commitments - mortgage loans |  |
ASSETS |  |
Derivative financial assets | 19 |
Fair Value Measurements |  |
ASSETS |  |
Cash and due from banks, including interest-bearing deposits | 196,228 | 244,820
Securities available for sale | 1,001,149 | 987,591
Portfolio loans, net | 7,704,463 | 7,362,898
Collateral receivable | 608 | 2,034
Securities held in a deferred compensation plan | 13,609 | 10,876
Mortgage servicing rights | 8,006 | 8,533
LIABILITIES |  |
Deposits | 7,918,559 | 7,778,740
Collateral payable | 22,660 | 52,516
Short-term borrowings | 135,000 | 150,000
Long-term borrowings | 50,848 | 50,652
Junior subordinated debt securities | 49,463 | 49,418
Fair Value Measurements | Interest rate swaps - commercial loans |  |
ASSETS |  |
Derivative financial assets |  | 60,890
Fair Value Measurements | Interest rate swap contracts - commercial loans |  |
ASSETS |  |
Derivative financial assets | 35,739 |
LIABILITIES |  |
Derivative financial liabilities | 36,042 | 61,271
Fair Value Measurements | Interest rate swap contracts - cash flow hedge |  |
LIABILITIES |  |
Derivative financial liabilities | 3,199 | 9,589
Fair Value Measurements | Interest rate lock commitments - mortgage loans |  |
ASSETS |  |
Derivative financial assets | 19 |
Fair Value Measurements | Level 1 |  |
ASSETS |  |
Cash and due from banks, including interest-bearing deposits | 196,228 | 244,820
Securities available for sale | 95,581 | 93,944
Portfolio loans, net | 0 | 0
Collateral receivable | 608 | 2,034
Securities held in a deferred compensation plan | 13,609 | 10,876
Mortgage servicing rights | 0 | 0
LIABILITIES |  |
Deposits | 5,997,324 | 5,916,154
Collateral payable | 22,660 | 52,516
Short-term borrowings | 0 | 0
Long-term borrowings | 0 | 0
Junior subordinated debt securities | 0 | 0
Fair Value Measurements | Level 1 | Interest rate swaps - commercial loans |  |
ASSETS |  |
Derivative financial assets |  | 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 - cash flow hedge |  |
LIABILITIES |  |
Derivative financial liabilities | 0 | 0
Fair Value Measurements | Level 1 | Interest rate lock commitments - mortgage loans |  |
ASSETS |  |
Derivative financial assets | 0 |
Fair Value Measurements | Level 2 |  |
ASSETS |  |
Cash and due from banks, including interest-bearing deposits | 0 | 0
Securities available for sale | 905,568 | 893,647
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 | 1,921,235 | 1,862,586
Collateral payable | 0 | 0
Short-term borrowings | 135,000 | 150,000
Long-term borrowings | 50,848 | 50,652
Junior subordinated debt securities | 49,463 | 49,418
Fair Value Measurements | Level 2 | Interest rate swaps - commercial loans |  |
ASSETS |  |
Derivative financial assets |  | 60,890
Fair Value Measurements | Level 2 | Interest rate swap contracts - commercial loans |  |
ASSETS |  |
Derivative financial assets | 35,739 |
LIABILITIES |  |
Derivative financial liabilities | 36,042 | 61,271
Fair Value Measurements | Level 2 | Interest rate swap contracts - cash flow hedge |  |
LIABILITIES |  |
Derivative financial liabilities | 3,199 | 9,589
Fair Value Measurements | Level 2 | Interest rate lock commitments - mortgage loans |  |
ASSETS |  |
Derivative financial assets | 0 |
Fair Value Measurements | Level 3 |  |
ASSETS |  |
Cash and due from banks, including interest-bearing deposits | 0 | 0
Securities available for sale | 0 | 0
Portfolio loans, net | 7,704,463 | 7,362,898
Collateral receivable | 0 | 0
Securities held in a deferred compensation plan | 0 | 0
Mortgage servicing rights | 8,006 | 8,533
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 swaps - commercial loans |  |
ASSETS |  |
Derivative financial assets |  | 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 - cash flow hedge |  |
LIABILITIES |  |
Derivative financial liabilities | 0 | $ 0
Fair Value Measurements | Level 3 | Interest rate lock commitments - mortgage loans |  |
ASSETS |  |
Derivative financial assets | $ 19 |

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