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Fair Value Measurements - Recurring (Details) - USD ($) $ in Thousands | 9 Months Ended |
--- | --- | ---
Sep. 30, 2021 | Sep. 30, 2020 | Dec. 31, 2020
Assets: |  |  |
Securities available-for-sale | $ 715,188 |  | $ 496,178
Mortgage servicing rights | 5,320 |  | 4,224
US Treasury Securities [Member] |  |  |
Assets: |  |  |
Securities available-for-sale | 4,070 |  | 4,117
Mortgage Backed Securities, Issued by US Government Agencies [Member] |  |  |
Assets: |  |  |
Securities available-for-sale | 17,818 |  |
US States and Political Subdivisions Debt Securities [Member] |  |  |
Assets and liabilities measured at fair value on a recurring basis |  |  |
Purchases | 748 | $ 12,900 |
Assets: |  |  |
Securities available-for-sale | 238,952 |  | 249,259
Corporate Bond Securities [Member] |  |  |
Assets: |  |  |
Securities available-for-sale | 4,992 |  |
Collateralized Mortgage Obligations [Member] |  |  |
Assets: |  |  |
Securities available-for-sale | 165,414 |  | 56,585
Asset-backed Securities [Member] |  |  |
Assets: |  |  |
Securities available-for-sale | 189,338 |  | 131,818
Collateralized loan obligations |  |  |
Assets: |  |  |
Securities available-for-sale | 61,029 |  | 30,533
Fair Value, Inputs, Level 1 [Member] |  |  |
Assets: |  |  |
Securities available-for-sale | 4,070 |  | 4,117
Fair Value, Inputs, Level 2 [Member] |  |  |
Assets: |  |  |
Securities available-for-sale | 705,558 |  | 487,742
Loans held-for-sale | 3,009 |  | 12,611
Other assets | 5,292 |  | 9,388
Liabilities: |  |  |
Other liabilities | 7,767 |  | 13,071
Fair Value, Inputs, Level 3 [Member] |  |  |
Assets: |  |  |
Securities available-for-sale | 5,560 |  | 4,319
Mortgage servicing rights | 5,320 |  | 4,224
Fair Value, Inputs, Level 3 [Member] | US States and Political Subdivisions Debt Securities [Member] |  |  |
Assets: |  |  |
Securities available-for-sale | 5,600 | $ 4,800 |
Recurring |  |  |
Assets: |  |  |
Loans held-for-sale | 3,009 |  | 12,611
Mortgage servicing rights | 5,320 |  | 4,224
Total financial assets | 729,684 |  | 523,241
Liabilities: |  |  |
Total | 7,798 |  | 13,159
Recurring | Interest Rate Swap [Member] |  |  |
Assets: |  |  |
Other assets | 5,292 |  | 9,388
Liabilities: |  |  |
Other liabilities | 7,798 |  | 13,159
Recurring | Forward Contracts [Member] |  |  |
Assets: |  |  |
Other assets | 875 |  | 840
Recurring | US Treasury Securities [Member] |  |  |
Assets: |  |  |
Securities available-for-sale | 4,070 |  | 4,117
Recurring | US Government Corporations and Agencies Securities [Member] |  |  |
Assets: |  |  |
Securities available-for-sale | 33,575 |  | 6,657
Recurring | Mortgage Backed Securities, Issued by US Government Agencies [Member] |  |  |
Assets: |  |  |
Securities available-for-sale | 17,818 |  | 17,209
Recurring | US States and Political Subdivisions Debt Securities [Member] |  |  |
Assets: |  |  |
Securities available-for-sale | 238,952 |  | 249,259
Recurring | Corporate Bond Securities [Member] |  |  |
Assets: |  |  |
Securities available-for-sale | 4,992 |  |
Recurring | Collateralized Mortgage Obligations [Member] |  |  |
Assets: |  |  |
Securities available-for-sale | 165,414 |  | 56,585
Recurring | Asset-backed Securities [Member] |  |  |
Assets: |  |  |
Securities available-for-sale | 189,338 |  | 131,818
Recurring | Collateralized loan obligations |  |  |
Assets: |  |  |
Securities available-for-sale | 61,029 |  | 30,533
Recurring | Fair Value, Inputs, Level 1 [Member] |  |  |
Assets: |  |  |
Total financial assets | 4,070 |  | 4,117
Recurring | Fair Value, Inputs, Level 1 [Member] | US Treasury Securities [Member] |  |  |
Assets: |  |  |
Securities available-for-sale | 4,070 |  | 4,117
Recurring | Fair Value, Inputs, Level 2 [Member] |  |  |
Assets: |  |  |
Loans held-for-sale | 3,009 |  | 12,611
Total financial assets | 714,734 |  | 510,581
Liabilities: |  |  |
Total | 7,798 |  | 13,159
Recurring | Fair Value, Inputs, Level 2 [Member] | Interest Rate Swap [Member] |  |  |
Assets: |  |  |
Other assets | 5,292 |  | 9,388
Liabilities: |  |  |
Other liabilities | 7,798 |  | 13,159
Recurring | Fair Value, Inputs, Level 2 [Member] | Forward Contracts [Member] |  |  |
Assets: |  |  |
Other assets | 875 |  | 840
Recurring | Fair Value, Inputs, Level 2 [Member] | US Government Corporations and Agencies Securities [Member] |  |  |
Assets: |  |  |
Securities available-for-sale | 33,575 |  | 6,657
Recurring | Fair Value, Inputs, Level 2 [Member] | Mortgage Backed Securities, Issued by US Government Agencies [Member] |  |  |
Assets: |  |  |
Securities available-for-sale | 17,818 |  | 17,209
Recurring | Fair Value, Inputs, Level 2 [Member] | US States and Political Subdivisions Debt Securities [Member] |  |  |
Assets: |  |  |
Securities available-for-sale | 233,392 |  | 244,940
Recurring | Fair Value, Inputs, Level 2 [Member] | Corporate Bond Securities [Member] |  |  |
Assets: |  |  |
Securities available-for-sale | 4,992 |  |
Recurring | Fair Value, Inputs, Level 2 [Member] | Collateralized Mortgage Obligations [Member] |  |  |
Assets: |  |  |
Securities available-for-sale | 165,414 |  | 56,585
Recurring | Fair Value, Inputs, Level 2 [Member] | Asset-backed Securities [Member] |  |  |
Assets: |  |  |
Securities available-for-sale | 189,338 |  | 131,818
Recurring | Fair Value, Inputs, Level 2 [Member] | Collateralized loan obligations |  |  |
Assets: |  |  |
Securities available-for-sale | 61,029 |  | 30,533
Recurring | Fair Value, Inputs, Level 3 [Member] |  |  |
Assets: |  |  |
Mortgage servicing rights | 5,320 |  | 4,224
Total financial assets | 10,880 |  | 8,543
Recurring | Fair Value, Inputs, Level 3 [Member] | US States and Political Subdivisions Debt Securities [Member] |  |  |
Assets: |  |  |
Securities available-for-sale | $ 5,560 |  | $ 4,319

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