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Fair Value of Financial Instruments - Fair Value of Assets and Liabilities Recorded on a Recurring Basis (Details) - USD ($) $ in Thousands | Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020
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Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |
Securities available for sale | $ 1,253,631 | $ 1,641,484 |  |
Securities carried at fair value through income | 6,808 | 6,368 |  |
Loans held for sale | 16,852 | 25,389 |  |
Mortgage servicing rights | 15,637 | $ 20,824 | $ 16,220 | $ 13,660
Derivative Asset, Statement of Financial Position [Extensible Enumeration] |  | Accrued interest receivable and other assets |  |
Derivative Liability, Statement of Financial Position [Extensible Enumeration] |  | Accrued expenses and other liabilities |  |
State and municipal securities |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |
Securities available for sale | 282,126 | $ 389,477 |  |
Securities carried at fair value through income | 6,808 | 6,368 |  |
Corporate bonds |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |
Securities available for sale | 83,635 | 82,258 |  |
Commercial mortgage-backed securities |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |
Securities available for sale | 93,396 | 91,943 |  |
Residential mortgage-backed securities |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |
Securities available for sale | 506,502 | 572,303 |  |
Commercial collateralized mortgage obligations |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |
Securities available for sale | 35,183 | 38,813 |  |
Residential collateralized mortgage obligations |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |
Securities available for sale | 130,144 | 146,370 |  |
Asset-backed securities |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |
Securities available for sale | 43,005 | 71,900 |  |
Fair Value, Measurements, Recurring |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |
Securities available for sale | 1,253,631 | 1,641,484 |  |
Securities carried at fair value through income | 6,808 | 6,368 |  |
Loans held for sale | 16,852 | 25,389 |  |
Mortgage servicing rights | 15,637 | 20,824 |  |
Other assets - derivatives | 20,487 | 26,733 |  |
Total recurring fair value measurements - assets | 1,313,415 | 1,720,798 |  |
Other liabilities - derivatives | (18,300) | (25,275) |  |
Total recurring fair value measurements - liabilities | (18,300) | (25,275) |  |
Fair Value, Measurements, Recurring | Level 1 |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |
Securities available for sale | 55,480 | 110,645 |  |
Securities carried at fair value through income | 0 | 0 |  |
Loans held for sale | 0 | 0 |  |
Mortgage servicing rights | 0 | 0 |  |
Other assets - derivatives | 0 | 0 |  |
Total recurring fair value measurements - assets | 55,480 | 110,645 |  |
Other liabilities - derivatives | 0 | 0 |  |
Total recurring fair value measurements - liabilities | 0 | 0 |  |
Fair Value, Measurements, Recurring | Level 2 |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |
Securities available for sale | 1,147,704 | 1,475,070 |  |
Securities carried at fair value through income | 0 | 0 |  |
Loans held for sale | 16,852 | 25,389 |  |
Mortgage servicing rights | 0 | 0 |  |
Other assets - derivatives | 20,487 | 26,733 |  |
Total recurring fair value measurements - assets | 1,185,043 | 1,527,192 |  |
Other liabilities - derivatives | (18,300) | (25,275) |  |
Total recurring fair value measurements - liabilities | (18,300) | (25,275) |  |
Fair Value, Measurements, Recurring | Level 3 |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |
Securities available for sale | 50,447 | 55,769 |  |
Securities carried at fair value through income | 6,808 | 6,368 |  |
Loans held for sale | 0 | 0 |  |
Mortgage servicing rights | 15,637 | 20,824 |  |
Other assets - derivatives | 0 | 0 |  |
Total recurring fair value measurements - assets | 72,892 | 82,961 |  |
Other liabilities - derivatives | 0 | 0 |  |
Total recurring fair value measurements - liabilities | 0 | 0 |  |
Fair Value, Measurements, Recurring | State and municipal securities |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |
Securities available for sale | 282,126 | 389,477 |  |
Fair Value, Measurements, Recurring | State and municipal securities | Level 1 |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |
Securities available for sale | 0 | 0 |  |
Fair Value, Measurements, Recurring | State and municipal securities | Level 2 |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |
Securities available for sale | 232,679 | 334,708 |  |
Fair Value, Measurements, Recurring | State and municipal securities | Level 3 |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |
Securities available for sale | 49,447 | 54,769 |  |
Fair Value, Measurements, Recurring | Corporate bonds |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |
Securities available for sale | 83,635 | 82,258 |  |
Fair Value, Measurements, Recurring | Corporate bonds | Level 1 |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |
Securities available for sale | 0 | 0 |  |
Fair Value, Measurements, Recurring | Corporate bonds | Level 2 |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |
Securities available for sale | 82,635 | 81,258 |  |
Fair Value, Measurements, Recurring | Corporate bonds | Level 3 |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |
Securities available for sale | 1,000 | 1,000 |  |
Fair Value, Measurements, Recurring | U.S. treasury securities |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |
Securities available for sale | 55,480 | 110,645 |  |
Fair Value, Measurements, Recurring | U.S. treasury securities | Level 1 |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |
Securities available for sale | 55,480 | 110,645 |  |
Fair Value, Measurements, Recurring | U.S. treasury securities | Level 2 |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |
Securities available for sale | 0 | 0 |  |
Fair Value, Measurements, Recurring | U.S. treasury securities | Level 3 |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |
Securities available for sale | 0 | 0 |  |
Fair Value, Measurements, Recurring | U.S. government agency securities |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |
Securities available for sale | 24,160 | 137,775 |  |
Fair Value, Measurements, Recurring | U.S. government agency securities | Level 1 |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |
Securities available for sale | 0 | 0 |  |
Fair Value, Measurements, Recurring | U.S. government agency securities | Level 2 |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |
Securities available for sale | 24,160 | 137,775 |  |
Fair Value, Measurements, Recurring | U.S. government agency securities | Level 3 |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |
Securities available for sale | 0 | 0 |  |
Fair Value, Measurements, Recurring | Commercial mortgage-backed securities |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |
Securities available for sale | 93,396 | 91,943 |  |
Fair Value, Measurements, Recurring | Commercial mortgage-backed securities | Level 1 |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |
Securities available for sale | 0 | 0 |  |
Fair Value, Measurements, Recurring | Commercial mortgage-backed securities | Level 2 |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |
Securities available for sale | 93,396 | 91,943 |  |
Fair Value, Measurements, Recurring | Commercial mortgage-backed securities | Level 3 |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |
Securities available for sale | 0 | 0 |  |
Fair Value, Measurements, Recurring | Residential mortgage-backed securities |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |
Securities available for sale | 506,502 | 572,303 |  |
Fair Value, Measurements, Recurring | Residential mortgage-backed securities | Level 1 |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |
Securities available for sale | 0 | 0 |  |
Fair Value, Measurements, Recurring | Residential mortgage-backed securities | Level 2 |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |
Securities available for sale | 506,502 | 572,303 |  |
Fair Value, Measurements, Recurring | Residential mortgage-backed securities | Level 3 |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |
Securities available for sale | 0 | 0 |  |
Fair Value, Measurements, Recurring | Commercial collateralized mortgage obligations |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |
Securities available for sale | 35,183 | 38,813 |  |
Fair Value, Measurements, Recurring | Commercial collateralized mortgage obligations | Level 1 |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |
Securities available for sale | 0 | 0 |  |
Fair Value, Measurements, Recurring | Commercial collateralized mortgage obligations | Level 2 |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |
Securities available for sale | 35,183 | 38,813 |  |
Fair Value, Measurements, Recurring | Commercial collateralized mortgage obligations | Level 3 |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |
Securities available for sale | 0 | 0 |  |
Fair Value, Measurements, Recurring | Residential collateralized mortgage obligations |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |
Securities available for sale | 130,144 | 146,370 |  |
Fair Value, Measurements, Recurring | Residential collateralized mortgage obligations | Level 1 |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |
Securities available for sale | 0 | 0 |  |
Fair Value, Measurements, Recurring | Residential collateralized mortgage obligations | Level 2 |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |
Securities available for sale | 130,144 | 146,370 |  |
Fair Value, Measurements, Recurring | Residential collateralized mortgage obligations | Level 3 |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |
Securities available for sale | 0 | 0 |  |
Fair Value, Measurements, Recurring | Asset-backed securities |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |
Securities available for sale | 43,005 | 71,900 |  |
Fair Value, Measurements, Recurring | Asset-backed securities | Level 1 |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |
Securities available for sale | 0 | 0 |  |
Fair Value, Measurements, Recurring | Asset-backed securities | Level 2 |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |
Securities available for sale | 43,005 | 71,900 |  |
Fair Value, Measurements, Recurring | Asset-backed securities | Level 3 |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |
Securities available for sale | $ 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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- Definition Fair value, after the effects of master netting arrangements, of a financial liability or 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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