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INVESTMENT SECURITIES - Allowance for Credit Loss and Unrealized Losses and Fair Values (Details) - USD ($) $ in Thousands | Jun. 30, 2025 | Dec. 31, 2024
--- | --- | ---
Fair value |  |
Less than 12 Months, Fair value | $ 366,557 | $ 388,077
Less than 12 Months, Unrealized loss | 7,760 | 12,176
12 Months or more, Fair value | 580,996 | 515,505
12 Months or more, Unrealized loss | 93,139 | 100,182
Total, Fair value | 947,553 | 903,582
Total, Unrealized loss | 100,899 | 112,358
U.S. government sponsored entities and U.S. agency securities |  |
Fair value |  |
Less than 12 Months, Fair value | 9,960 | 4,973
Less than 12 Months, Unrealized loss | 26 | 27
12 Months or more, Fair value | 8,836 | 8,488
12 Months or more, Unrealized loss | 1,164 | 1,512
Total, Fair value | 18,796 | 13,461
Total, Unrealized loss | 1,190 | 1,539
Mortgage-backed securities - agency |  |
Fair value |  |
Less than 12 Months, Fair value | 297,137 | 300,427
Less than 12 Months, Unrealized loss | 7,212 | 9,735
12 Months or more, Fair value | 413,979 | 385,332
12 Months or more, Unrealized loss | 77,846 | 85,133
Total, Fair value | 711,116 | 685,759
Total, Unrealized loss | 85,058 | 94,868
Mortgage-backed securities - non-agency |  |
Fair value |  |
Less than 12 Months, Fair value | 5,508 | 12,433
Less than 12 Months, Unrealized loss | 15 | 33
12 Months or more, Fair value | 23,217 | 24,153
12 Months or more, Unrealized loss | 2,918 | 3,416
Total, Fair value | 28,725 | 36,586
Total, Unrealized loss | 2,933 | 3,449
Asset-backed student loans |  |
Fair value |  |
Less than 12 Months, Fair value | 21,241 | 17,734
Less than 12 Months, Unrealized loss | 137 | 99
12 Months or more, Fair value | 16,963 | 2,130
12 Months or more, Unrealized loss | 209 | 1
Total, Fair value | 38,204 | 19,864
Total, Unrealized loss | 346 | 100
State and municipal securities |  |
Fair value |  |
Less than 12 Months, Fair value | 19,019 | 21,209
Less than 12 Months, Unrealized loss | 316 | 365
12 Months or more, Fair value | 45,179 | 43,131
12 Months or more, Unrealized loss | 5,674 | 6,267
Total, Fair value | 64,198 | 64,340
Total, Unrealized loss | 5,990 | 6,632
Collateralized loan obligations |  |
Fair value |  |
Less than 12 Months, Fair value | 10,444 | 7,468
Less than 12 Months, Unrealized loss | 52 | 7
12 Months or more, Fair value | 2,367 | 0
12 Months or more, Unrealized loss | 11 | 0
Total, Fair value | 12,811 | 7,468
Total, Unrealized loss | 63 | 7
Corporate securities |  |
Fair value |  |
Less than 12 Months, Fair value | 3,248 | 23,833
Less than 12 Months, Unrealized loss | 2 | 1,910
12 Months or more, Fair value | 70,455 | 52,271
12 Months or more, Unrealized loss | 5,317 | 3,853
Total, Fair value | 73,703 | 76,104
Total, Unrealized loss | $ 5,319 | $ 5,763

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