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Fair Value - Assets and Liabilities Recorded at Fair Value on a Recurring Basis (Details) - USD ($) $ in Thousands | Mar. 31, 2024 | Dec. 31, 2023
--- | --- | ---
Assets |  |
Total available-for-sale securities, Fair value, | $ 2,159,338 | $ 2,255,336
Collateralized Loan Obligations |  |
Assets |  |
Total available-for-sale securities, Fair value, | 239,676 | 247,854
Fair Value, Measurements, Recurring |  |
Assets |  |
Total available-for-sale securities, Fair value, | 2,159,338 | 2,255,336
Other assets | 13,237 | 13,285
Liabilities |  |
Other liabilities | (7,046) | (4,620)
Total |  |
Net Assets (Liabilities) | 2,165,529 | 2,264,001
Fair Value, Measurements, Recurring | Quoted Prices in Active Markets for Identical Assets (Level 1) |  |
Assets |  |
Other assets | 216 | 517
Total |  |
Net Assets (Liabilities) | 216 | 517
Fair Value, Measurements, Recurring | Significant Other Observable Inputs (Level 2) |  |
Assets |  |
Total available-for-sale securities, Fair value, | 2,159,338 | 2,255,336
Other assets | 13,021 | 12,768
Liabilities |  |
Other liabilities | (4,746) | (2,320)
Total |  |
Net Assets (Liabilities) | 2,167,613 | 2,265,784
Fair Value, Measurements, Recurring | Significant Unobservable Inputs (Level 3) |  |
Liabilities |  |
Other liabilities | (2,300) | (2,300)
Total |  |
Net Assets (Liabilities) | (2,300) | (2,300)
U.S. Treasury and government agency debt securities |  |
Assets |  |
Total available-for-sale securities, Fair value, | 12,821 | 32,503
U.S. Treasury and government agency debt securities | Fair Value, Measurements, Recurring |  |
Assets |  |
Total available-for-sale securities, Fair value, | 12,821 | 32,503
U.S. Treasury and government agency debt securities | Fair Value, Measurements, Recurring | Significant Other Observable Inputs (Level 2) |  |
Assets |  |
Total available-for-sale securities, Fair value, | 12,821 | 32,503
Government-sponsored enterprises debt securities |  |
Assets |  |
Total available-for-sale securities, Fair value, | 19,629 | 19,592
Government-sponsored enterprises debt securities | Fair Value, Measurements, Recurring |  |
Assets |  |
Total available-for-sale securities, Fair value, | 19,629 | 19,592
Government-sponsored enterprises debt securities | Fair Value, Measurements, Recurring | Significant Other Observable Inputs (Level 2) |  |
Assets |  |
Total available-for-sale securities, Fair value, | 19,629 | 19,592
Residential - Government agency |  |
Assets |  |
Total available-for-sale securities, Fair value, | 9,609 | 10,182
Residential - Government agency | Fair Value, Measurements, Recurring |  |
Assets |  |
Total available-for-sale securities, Fair value, | 9,609 | 10,182
Residential - Government agency | Fair Value, Measurements, Recurring | Significant Other Observable Inputs (Level 2) |  |
Assets |  |
Total available-for-sale securities, Fair value, | 9,609 | 10,182
Residential - Government-sponsored enterprises |  |
Assets |  |
Total available-for-sale securities, Fair value, | 753,385 | 783,297
Residential - Government-sponsored enterprises | Fair Value, Measurements, Recurring |  |
Assets |  |
Total available-for-sale securities, Fair value, | 753,385 | 783,297
Residential - Government-sponsored enterprises | Fair Value, Measurements, Recurring | Significant Other Observable Inputs (Level 2) |  |
Assets |  |
Total available-for-sale securities, Fair value, | 753,385 | 783,297
Commercial - Government agency |  |
Assets |  |
Total available-for-sale securities, Fair value, | 213,394 | 218,674
Commercial - Government agency | Fair Value, Measurements, Recurring |  |
Assets |  |
Total available-for-sale securities, Fair value, | 213,394 | 218,674
Commercial - Government agency | Fair Value, Measurements, Recurring | Significant Other Observable Inputs (Level 2) |  |
Assets |  |
Total available-for-sale securities, Fair value, | 213,394 | 218,674
Commercial - Government-sponsored enterprises |  |
Assets |  |
Total available-for-sale securities, Fair value, | 83,490 | 86,431
Commercial - Government-sponsored enterprises | Fair Value, Measurements, Recurring |  |
Assets |  |
Total available-for-sale securities, Fair value, | 83,490 | 86,431
Commercial - Government-sponsored enterprises | Fair Value, Measurements, Recurring | Significant Other Observable Inputs (Level 2) |  |
Assets |  |
Total available-for-sale securities, Fair value, | 83,490 | 86,431
Commercial - Non-government mortgage | Fair Value, Measurements, Recurring |  |
Assets |  |
Total available-for-sale securities, Fair value, | 22,110 | 21,683
Commercial - Non-government mortgage | Fair Value, Measurements, Recurring | Significant Other Observable Inputs (Level 2) |  |
Assets |  |
Total available-for-sale securities, Fair value, | 22,110 | 21,683
Government agency |  |
Assets |  |
Total available-for-sale securities, Fair value, | 452,163 | 471,150
Government agency | Fair Value, Measurements, Recurring |  |
Assets |  |
Total available-for-sale securities, Fair value, | 452,163 | 471,150
Government agency | Fair Value, Measurements, Recurring | Significant Other Observable Inputs (Level 2) |  |
Assets |  |
Total available-for-sale securities, Fair value, | 452,163 | 471,150
Government-sponsored enterprises |  |
Assets |  |
Total available-for-sale securities, Fair value, | 353,061 | 363,970
Government-sponsored enterprises | Fair Value, Measurements, Recurring |  |
Assets |  |
Total available-for-sale securities, Fair value, | 353,061 | 363,970
Government-sponsored enterprises | Fair Value, Measurements, Recurring | Significant Other Observable Inputs (Level 2) |  |
Assets |  |
Total available-for-sale securities, Fair value, | 353,061 | 363,970
Collateralized Loan Obligations | Fair Value, Measurements, Recurring |  |
Assets |  |
Total available-for-sale securities, Fair value, | 239,676 | 247,854
Collateralized Loan Obligations | Fair Value, Measurements, Recurring | Significant Other Observable Inputs (Level 2) |  |
Assets |  |
Total available-for-sale securities, Fair value, | $ 239,676 | $ 247,854

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