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Fair Value Measurements - Recurring (Details) - USD ($) $ in Thousands | Jun. 30, 2022 | Dec. 31, 2021 | Jun. 30, 2021
--- | --- | --- | ---
Assets: |  |  |
Securities available-for-sale | $ 1,734,416 | $ 1,693,632 |
Mortgage servicing rights | 10,722 | 7,097 |
U.S. Treasury |  |  |
Assets: |  |  |
Securities available-for-sale | 214,820 | 202,339 |
U.S. government agencies |  |  |
Assets: |  |  |
Securities available-for-sale | 57,896 | 61,888 |
States and political subdivisions |  |  |
Assets: |  |  |
Securities available-for-sale | 233,652 | 257,609 |
Corporate bonds |  |  |
Assets: |  |  |
Securities available-for-sale | 9,543 | 9,887 |
Collateralized mortgage obligations |  |  |
Assets: |  |  |
Securities available-for-sale | 641,498 | 672,967 |
Asset-backed Securities |  |  |
Assets: |  |  |
Securities available-for-sale | 259,622 | 236,877 |
Collateralized loan obligations. |  |  |
Assets: |  |  |
Securities available-for-sale | 175,549 | 79,763 |
Fair Value, Inputs, Level 1 [Member] |  |  |
Assets: |  |  |
Securities available-for-sale | 214,820 | 202,339 |
Fair Value, Inputs, Level 2 [Member] |  |  |
Assets: |  |  |
Securities available-for-sale | 1,506,508 | 1,476,057 |
Loans held-for-sale | 1,707 | 4,737 |
Other assets | 4,956 |  |
Other assets | 2,770 | 3,494 |
Liabilities: |  |  |
Other liabilities | 3,576 | 6,788 |
Fair Value, Inputs, Level 3 [Member] |  |  |
Assets: |  |  |
Securities available-for-sale | 13,088 | 15,236 |
Mortgage servicing rights | 10,722 | 7,097 |
Fair Value, Inputs, Level 3 [Member] | States and political subdivisions |  |  |
Assets: |  |  |
Securities available-for-sale | 13,100 |  | $ 5,000
Fair Value, Measurements, Recurring [Member] |  |  |
Assets: |  |  |
Loans held-for-sale | 1,707 | 4,737 |
Mortgage servicing rights | 10,722 | 7,097 |
Total financial assets | 1,754,724 | 1,709,468 |
Liabilities: |  |  |
Total | 3,580 | 6,809 |
Fair Value, Measurements, Recurring [Member] | Credit Card Portfolio |  |  |
Assets: |  |  |
Other assets | 4,956 |  |
Fair Value, Measurements, Recurring [Member] | Interest Rate Swap [Member] |  |  |
Assets: |  |  |
Other assets | 2,770 | 3,494 |
Liabilities: |  |  |
Other liabilities | 3,580 | 6,809 |
Fair Value, Measurements, Recurring [Member] | Forward Contracts [Member] |  |  |
Assets: |  |  |
Other assets | 153 | 508 |
Fair Value, Measurements, Recurring [Member] | U.S. Treasury |  |  |
Assets: |  |  |
Securities available-for-sale | 214,820 | 202,339 |
Fair Value, Measurements, Recurring [Member] | U.S. government agencies |  |  |
Assets: |  |  |
Securities available-for-sale | 57,896 | 61,888 |
Fair Value, Measurements, Recurring [Member] | Mortgage Backed Securities, Issued by US Government Agencies |  |  |
Assets: |  |  |
Securities available-for-sale | 141,836 | 172,302 |
Fair Value, Measurements, Recurring [Member] | States and political subdivisions |  |  |
Assets: |  |  |
Securities available-for-sale | 233,652 | 257,609 |
Fair Value, Measurements, Recurring [Member] | Corporate bonds |  |  |
Assets: |  |  |
Securities available-for-sale | 9,543 | 9,887 |
Fair Value, Measurements, Recurring [Member] | Collateralized mortgage obligations |  |  |
Assets: |  |  |
Securities available-for-sale | 641,498 | 672,967 |
Fair Value, Measurements, Recurring [Member] | Asset-backed Securities |  |  |
Assets: |  |  |
Securities available-for-sale | 259,622 | 236,877 |
Fair Value, Measurements, Recurring [Member] | Collateralized loan obligations. |  |  |
Assets: |  |  |
Securities available-for-sale | 175,549 | 79,763 |
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 1 [Member] |  |  |
Assets: |  |  |
Total financial assets | 214,820 | 202,339 |
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 1 [Member] | U.S. Treasury |  |  |
Assets: |  |  |
Securities available-for-sale | 214,820 | 202,339 |
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 2 [Member] |  |  |
Assets: |  |  |
Loans held-for-sale | 1,707 | 4,737 |
Total financial assets | 1,516,094 | 1,484,796 |
Liabilities: |  |  |
Total | 3,580 | 6,809 |
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 2 [Member] | Credit Card Portfolio |  |  |
Assets: |  |  |
Other assets | 4,956 |  |
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 2 [Member] | Interest Rate Swap [Member] |  |  |
Assets: |  |  |
Other assets | 2,770 | 3,494 |
Liabilities: |  |  |
Other liabilities | 3,580 | 6,809 |
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 2 [Member] | Forward Contracts [Member] |  |  |
Assets: |  |  |
Other assets | 153 | 508 |
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 2 [Member] | U.S. government agencies |  |  |
Assets: |  |  |
Securities available-for-sale | 57,896 | 61,888 |
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 2 [Member] | Mortgage Backed Securities, Issued by US Government Agencies |  |  |
Assets: |  |  |
Securities available-for-sale | 141,836 | 172,302 |
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 2 [Member] | States and political subdivisions |  |  |
Assets: |  |  |
Securities available-for-sale | 220,564 | 242,373 |
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 2 [Member] | Corporate bonds |  |  |
Assets: |  |  |
Securities available-for-sale | 9,543 | 9,887 |
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 2 [Member] | Collateralized mortgage obligations |  |  |
Assets: |  |  |
Securities available-for-sale | 641,498 | 672,967 |
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 2 [Member] | Asset-backed Securities |  |  |
Assets: |  |  |
Securities available-for-sale | 259,622 | 236,877 |
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 2 [Member] | Collateralized loan obligations. |  |  |
Assets: |  |  |
Securities available-for-sale | 175,549 | 79,763 |
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 3 [Member] |  |  |
Assets: |  |  |
Mortgage servicing rights | 10,722 | 7,097 |
Total financial assets | 23,810 | 22,333 |
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 3 [Member] | States and political subdivisions |  |  |
Assets: |  |  |
Securities available-for-sale | $ 13,088 | $ 15,236 |

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