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Fair Value Measurements - Recurring (Details) - USD ($) $ in Thousands | Mar. 31, 2023 | Dec. 31, 2022
--- | --- | ---
Assets: |  |
Securities available-for-sale | $ 1,455,068 | $ 1,539,359
Mortgage servicing rights | 10,784 | 11,189
U.S. Treasury |  |
Assets: |  |
Securities available-for-sale | 214,734 | 212,129
U.S. government agencies |  |
Assets: |  |
Securities available-for-sale | 56,703 | 56,048
States and political subdivisions |  |
Assets: |  |
Securities available-for-sale | 233,506 | 226,128
Corporate bonds |  |
Assets: |  |
Securities available-for-sale | 9,762 | 9,622
Collateralized mortgage obligations |  |
Assets: |  |
Securities available-for-sale | 454,106 | 533,768
Asset-backed Securities |  |
Assets: |  |
Securities available-for-sale | 189,753 | 201,928
Collateralized loan obligations. |  |
Assets: |  |
Securities available-for-sale | 174,566 | 174,746
Fair Value, Inputs, Level 1 [Member] |  |
Assets: |  |
Securities available-for-sale | 214,734 | 212,129
Fair Value, Inputs, Level 2 [Member] |  |
Assets: |  |
Securities available-for-sale | 1,225,355 | 1,291,219
Loans held-for-sale | 946 | 491
Other assets | 5,735 | 6,391
Liabilities: |  |
Other liabilities | 10,006 | 12,264
Fair Value, Inputs, Level 3 [Member] |  |
Assets: |  |
Securities available-for-sale | 14,979 | 36,011
Mortgage servicing rights | 10,784 | 11,189
Fair Value, Measurements, Recurring [Member] |  |
Assets: |  |
Loans held-for-sale | 946 | 491
Mortgage servicing rights | 10,784 | 11,189
Total financial assets | 1,472,711 | 1,557,631
Liabilities: |  |
Total | 10,007 | 12,265
Fair Value, Measurements, Recurring [Member] | Interest rate swap agreements, including risk participation agreement |  |
Assets: |  |
Other assets | 5,885 | 6,516
Liabilities: |  |
Other liabilities | 10,007 | 12,265
Fair Value, Measurements, Recurring [Member] | Forward Contracts [Member] |  |
Assets: |  |
Other assets | 28 | 76
Fair Value, Measurements, Recurring [Member] | U.S. Treasury |  |
Assets: |  |
Securities available-for-sale | 214,734 | 212,129
Fair Value, Measurements, Recurring [Member] | U.S. government agencies |  |
Assets: |  |
Securities available-for-sale | 56,703 | 56,048
Fair Value, Measurements, Recurring [Member] | Mortgage Backed Securities, Issued by US Government Agencies |  |
Assets: |  |
Securities available-for-sale | 121,938 | 124,990
Fair Value, Measurements, Recurring [Member] | States and political subdivisions |  |
Assets: |  |
Securities available-for-sale | 233,506 | 226,128
Fair Value, Measurements, Recurring [Member] | Corporate bonds |  |
Assets: |  |
Securities available-for-sale | 9,762 | 9,622
Fair Value, Measurements, Recurring [Member] | Collateralized mortgage obligations |  |
Assets: |  |
Securities available-for-sale | 454,106 | 533,768
Fair Value, Measurements, Recurring [Member] | Asset-backed Securities |  |
Assets: |  |
Securities available-for-sale | 189,753 | 201,928
Fair Value, Measurements, Recurring [Member] | Collateralized loan obligations. |  |
Assets: |  |
Securities available-for-sale | 174,566 | 174,746
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 1 [Member] |  |
Assets: |  |
Total financial assets | 214,734 | 212,129
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 1 [Member] | U.S. Treasury |  |
Assets: |  |
Securities available-for-sale | 214,734 | 212,129
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 2 [Member] |  |
Assets: |  |
Loans held-for-sale | 946 | 491
Total financial assets | 1,232,214 | 1,298,302
Liabilities: |  |
Total | 10,007 | 12,265
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 2 [Member] | Interest rate swap agreements, including risk participation agreement |  |
Assets: |  |
Other assets | 5,885 | 6,516
Liabilities: |  |
Other liabilities | 10,007 | 12,265
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 2 [Member] | Forward Contracts [Member] |  |
Assets: |  |
Other assets | 28 | 76
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 2 [Member] | U.S. government agencies |  |
Assets: |  |
Securities available-for-sale | 56,703 | 56,048
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 2 [Member] | Mortgage Backed Securities, Issued by US Government Agencies |  |
Assets: |  |
Securities available-for-sale | 121,938 | 124,990
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 2 [Member] | States and political subdivisions |  |
Assets: |  |
Securities available-for-sale | 218,527 | 211,899
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 2 [Member] | Corporate bonds |  |
Assets: |  |
Securities available-for-sale | 9,762 | 9,622
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 2 [Member] | Collateralized mortgage obligations |  |
Assets: |  |
Securities available-for-sale | 454,106 | 526,998
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 2 [Member] | Asset-backed Securities |  |
Assets: |  |
Securities available-for-sale | 189,753 | 186,916
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 2 [Member] | Collateralized loan obligations. |  |
Assets: |  |
Securities available-for-sale | 174,566 | 174,746
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 3 [Member] |  |
Assets: |  |
Mortgage servicing rights | 10,784 | 11,189
Total financial assets | 25,763 | 47,200
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 3 [Member] | States and political subdivisions |  |
Assets: |  |
Securities available-for-sale | $ 14,979 | 14,229
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 3 [Member] | Collateralized mortgage obligations |  |
Assets: |  |
Securities available-for-sale |  | 6,770
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 3 [Member] | Asset-backed Securities |  |
Assets: |  |
Securities available-for-sale |  | $ 15,012

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