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INVESTMENT SECURITIES - Allowance for Credit Loss and Unrealized Losses and Fair Values (Details) - USD ($) $ in Thousands | Dec. 31, 2024 | Dec. 31, 2023
--- | --- | ---
Fair value |  |
Less than 12 Months, Fair value | $ 388,077 | $ 252,732
Less than 12 Months, Unrealized loss | 12,176 | 13,713
12 Months or more, Fair value | 515,505 | 460,879
12 Months or more, Unrealized loss | 100,182 | 86,201
Total, Fair value | 903,582 | 713,611
Total, Unrealized loss | 112,358 | 99,914
U.S. government sponsored entities and U.S. agency securities |  |
Fair value |  |
Less than 12 Months, Fair value | 4,973 | 42,826
Less than 12 Months, Unrealized loss | 27 | 87
12 Months or more, Fair value | 8,488 | 8,323
12 Months or more, Unrealized loss | 1,512 | 1,678
Total, Fair value | 13,461 | 51,149
Total, Unrealized loss | 1,539 | 1,765
Mortgage-backed securities - agency |  |
Fair value |  |
Less than 12 Months, Fair value | 300,427 | 130,106
Less than 12 Months, Unrealized loss | 9,735 | 7,386
12 Months or more, Fair value | 385,332 | 348,476
12 Months or more, Unrealized loss | 85,133 | 70,558
Total, Fair value | 685,759 | 478,582
Total, Unrealized loss | 94,868 | 77,944
Mortgage-backed securities - non-agency |  |
Fair value |  |
Less than 12 Months, Fair value | 12,433 | 8,852
Less than 12 Months, Unrealized loss | 33 | 353
12 Months or more, Fair value | 24,153 | 19,418
12 Months or more, Unrealized loss | 3,416 | 3,551
Total, Fair value | 36,586 | 28,270
Total, Unrealized loss | 3,449 | 3,904
State and municipal securities |  |
Fair value |  |
Less than 12 Months, Fair value | 21,209 | 51,497
Less than 12 Months, Unrealized loss | 365 | 5,750
12 Months or more, Fair value | 43,131 | 0
12 Months or more, Unrealized loss | 6,267 | 0
Total, Fair value | 64,340 | 51,497
Total, Unrealized loss | 6,632 | 5,750
Corporate securities |  |
Fair value |  |
Less than 12 Months, Fair value | 23,833 | 4,688
Less than 12 Months, Unrealized loss | 1,910 | 53
12 Months or more, Fair value | 52,271 | 84,662
12 Months or more, Unrealized loss | 3,853 | 10,414
Total, Fair value | 76,104 | 89,350
Total, Unrealized loss | 5,763 | 10,467
Other securities |  |
Fair value |  |
Less than 12 Months, Fair value | 25,202 | 14,763
Less than 12 Months, Unrealized loss | 106 | 84
12 Months or more, Fair value | 2,130 | 0
12 Months or more, Unrealized loss | 1 | 0
Total, Fair value | 27,332 | 14,763
Total, Unrealized loss | $ 107 | $ 84

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