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SEGMENT INFORMATION (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended | 9 Months Ended | 12 Months Ended
--- | --- | --- | --- | ---
Sep. 30, 2024 | Jun. 30, 2024 | Mar. 31, 2024 | Sep. 30, 2023 | Jun. 30, 2023 | Mar. 31, 2023 | Jun. 30, 2024 | Jun. 30, 2023 | Sep. 30, 2024 | Sep. 30, 2023 | Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Interest income | $ 108,994 | $ 107,138 | $ 105,526 | $ 106,614 | $ 104,105 | $ 98,084 | $ 212,664 | $ 202,189 | $ 321,658 | $ 308,803 | $ 426,128 | $ 417,100 | $ 312,715
Interest expense |  |  |  |  |  |  |  |  |  |  | 189,782 | 168,279 | 56,020
Net interest income | 59,110 | 58,895 | 59,771 | 61,625 | 62,454 | 63,049 | 118,666 | 125,503 | 177,776 | 187,128 | 236,346 | 248,821 | 256,695
Provision for credit losses | 17,925 | 8,282 | 19,942 | 22,362 | 21,816 | 22,282 | 28,224 | 44,098 | 46,149 | 66,460 | 120,332 | 82,560 | 76,764
Wealth management revenue |  |  |  |  |  |  |  |  |  |  | 28,697 | 25,572 | 25,708
Credit enhancement income | 14,206 | 14,328 | 16,654 | 14,918 | 10,082 | 13,380 | 30,982 | 23,462 | 45,188 | 38,380 | 60,998 | 48,194 | 69,976
Other noninterest income |  |  |  |  |  |  |  |  |  |  | 49,046 | 41,018 | 54,183
Total noninterest income | 33,545 | 31,984 | 37,841 | 26,463 | 28,835 | 29,159 | 69,825 | 57,994 | 103,370 | 84,457 | 138,741 | 114,784 | 149,867
Salaries and employee benefits |  |  |  |  |  |  |  |  |  |  | 93,639 | 93,438 | 90,305
Depreciation expense |  |  |  |  |  |  |  |  |  |  | 4,993 | 4,778 | 4,842
Amortization of intangible assets |  |  |  |  |  |  |  |  |  |  | 4,008 | 4,758 | 5,410
Other noninterest expense |  |  |  |  |  |  |  |  |  |  | 105,215 | 90,109 | 97,855
Total noninterest expense | 49,764 | 50,784 | 48,608 | 46,692 | 47,902 | 49,818 | 99,392 | 97,720 | 149,156 | 144,412 | 207,855 | 193,083 | 198,412
Income before income taxes | 24,966 | 31,813 | 29,062 | 19,034 | 21,571 | 20,108 | 60,875 | 41,679 | 85,841 | 60,713 | 46,900 | 87,962 | 131,386
Income tax (expense) benefit | 4,535 | 6,094 | 6,399 | 10,344 | 5,036 | 4,286 | 12,493 | 9,322 | 17,028 | 19,666 | 8,856 | 26,807 | 31,149
Net income (loss) | 20,431 | 25,719 | 22,663 | 8,690 | 16,535 | 15,822 | 48,382 | 32,357 | 68,813 | 41,047 | 38,044 | 61,155 | 100,237
Total assets | $ 7,704,189 | $ 7,708,074 | $ 7,763,708 | $ 7,893,109 | $ 7,961,296 | $ 7,861,789 | $ 7,708,074 | $ 7,961,296 | $ 7,704,189 | $ 7,893,109 | 7,506,809 | 7,790,046 | 7,793,066
Banking |  |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Interest income |  |  |  |  |  |  |  |  |  |  | 426,113 | 416,997 | 312,701
Interest expense |  |  |  |  |  |  |  |  |  |  | 180,643 | 159,316 | 45,515
Net interest income |  |  |  |  |  |  |  |  |  |  | 245,470 | 257,681 | 267,186
Provision for credit losses |  |  |  |  |  |  |  |  |  |  | 120,332 | 82,560 | 76,764
Wealth management revenue |  |  |  |  |  |  |  |  |  |  | 0 | 0 | 0
Credit enhancement income |  |  |  |  |  |  |  |  |  |  | 60,998 | 48,194 | 69,976
Other noninterest income |  |  |  |  |  |  |  |  |  |  | 49,123 | 40,830 | 54,179
Total noninterest income |  |  |  |  |  |  |  |  |  |  | 110,121 | 89,024 | 124,155
Salaries and employee benefits |  |  |  |  |  |  |  |  |  |  | 79,011 | 79,584 | 77,822
Depreciation expense |  |  |  |  |  |  |  |  |  |  | 4,950 | 4,722 | 4,784
Amortization of intangible assets |  |  |  |  |  |  |  |  |  |  | 2,900 | 3,564 | 4,121
Other noninterest expense |  |  |  |  |  |  |  |  |  |  | 101,855 | 86,798 | 93,703
Total noninterest expense |  |  |  |  |  |  |  |  |  |  | 188,716 | 174,668 | 180,430
Income before income taxes |  |  |  |  |  |  |  |  |  |  | 46,543 | 89,477 | 134,147
Income tax (expense) benefit |  |  |  |  |  |  |  |  |  |  | 10,037 | 27,348 | 35,391
Net income (loss) |  |  |  |  |  |  |  |  |  |  | 36,506 | 62,129 | 98,756
Total assets |  |  |  |  |  |  |  |  |  |  | 7,486,121 | 7,768,201 | 7,779,531
Wealth management |  |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Interest income |  |  |  |  |  |  |  |  |  |  | 0 | 0 | 0
Interest expense |  |  |  |  |  |  |  |  |  |  | 51 | 12 | 0
Net interest income |  |  |  |  |  |  |  |  |  |  | (51) | (12) | 0
Provision for credit losses |  |  |  |  |  |  |  |  |  |  | 0 | 0 | 0
Wealth management revenue |  |  |  |  |  |  |  |  |  |  | 28,697 | 25,572 | 25,708
Credit enhancement income |  |  |  |  |  |  |  |  |  |  | 0 | 0 | 0
Other noninterest income |  |  |  |  |  |  |  |  |  |  | 0 | 0 | 0
Total noninterest income |  |  |  |  |  |  |  |  |  |  | 28,697 | 25,572 | 25,708
Salaries and employee benefits |  |  |  |  |  |  |  |  |  |  | 14,628 | 13,854 | 12,483
Depreciation expense |  |  |  |  |  |  |  |  |  |  | 43 | 56 | 58
Amortization of intangible assets |  |  |  |  |  |  |  |  |  |  | 1,108 | 1,194 | 1,289
Other noninterest expense |  |  |  |  |  |  |  |  |  |  | 6,111 | 5,143 | 4,189
Total noninterest expense |  |  |  |  |  |  |  |  |  |  | 21,890 | 20,247 | 18,019
Income before income taxes |  |  |  |  |  |  |  |  |  |  | 6,756 | 5,313 | 7,689
Income tax (expense) benefit |  |  |  |  |  |  |  |  |  |  | 3,257 | 2,309 | 2,136
Net income (loss) |  |  |  |  |  |  |  |  |  |  | 3,499 | 3,004 | 5,553
Total assets |  |  |  |  |  |  |  |  |  |  | 32,303 | 31,437 | 29,332
Corporate |  |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Interest income |  |  |  |  |  |  |  |  |  |  | 15 | 103 | 14
Interest expense |  |  |  |  |  |  |  |  |  |  | 9,088 | 8,951 | 10,505
Net interest income |  |  |  |  |  |  |  |  |  |  | (9,073) | (8,848) | (10,491)
Provision for credit losses |  |  |  |  |  |  |  |  |  |  | 0 | 0 | 0
Wealth management revenue |  |  |  |  |  |  |  |  |  |  | 0 | 0 | 0
Credit enhancement income |  |  |  |  |  |  |  |  |  |  | 0 | 0 | 0
Other noninterest income |  |  |  |  |  |  |  |  |  |  | (77) | 188 | 4
Total noninterest income |  |  |  |  |  |  |  |  |  |  | (77) | 188 | 4
Salaries and employee benefits |  |  |  |  |  |  |  |  |  |  | 0 | 0 | 0
Depreciation expense |  |  |  |  |  |  |  |  |  |  | 0 | 0 | 0
Amortization of intangible assets |  |  |  |  |  |  |  |  |  |  | 0 | 0 | 0
Other noninterest expense |  |  |  |  |  |  |  |  |  |  | (2,751) | (1,832) | (37)
Total noninterest expense |  |  |  |  |  |  |  |  |  |  | (2,751) | (1,832) | (37)
Income before income taxes |  |  |  |  |  |  |  |  |  |  | (6,399) | (6,828) | (10,450)
Income tax (expense) benefit |  |  |  |  |  |  |  |  |  |  | (4,438) | (2,850) | (6,378)
Net income (loss) |  |  |  |  |  |  |  |  |  |  | (1,961) | (3,978) | (4,072)
Total assets |  |  |  |  |  |  |  |  |  |  | $ (11,615) | $ (9,592) | $ (15,797)

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