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REVENUE FROM CONTRACTS WITH CUSTOMERS (Details) - USD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021
Revenue recognition |  |  |  |
Net interest income | $ 312,154 | $ 288,778 | $ 236,691 |
NONINTEREST INCOME: |  |  |  |
Mortgage banking income | 5,438 | 3,542 | 6,196 |
Program fees | 17,818 | 15,582 | 16,172 |
Increase in cash surrender value of BOLI | 3,208 | 2,719 | 2,526 |
Death benefits in excess of cash surrender value of life insurance |  | 1,728 |  |
Total noninterest income | 72,650 | 71,457 | 89,810 |
Total net revenue | $ 384,804 | $ 360,235 | $ 326,501 |
Net-revenue concentration (as percent) | 100.00% | 100.00% | 100.00% |
Writedowns during entity's holding of property (as a percent) | 10.00% |  |  |
Core Banking Activities |  |  |  |
Revenue recognition |  |  |  |
Net interest income | $ 215,608 | $ 204,245 | $ 185,791 |
NONINTEREST INCOME: |  |  |  |
Mortgage banking income | 5,438 | 3,542 | 6,196 |
Increase in cash surrender value of BOLI | 3,208 | 2,719 | 2,526 |
Death benefits in excess of cash surrender value of life insurance |  | 1,728 |  |
Total noninterest income | 39,141 | 39,545 | 38,030 |
Total net revenue | $ 254,749 | $ 243,790 | $ 223,821 |
Net-revenue concentration (as percent) | 66.00% | 68.00% | 69.00% |
Traditional Banking |  |  |  |
Revenue recognition |  |  |  |
Net interest income | $ 203,139 | $ 194,798 | $ 172,062 |
NONINTEREST INCOME: |  |  |  |
Mortgage banking income | 5,438 | 3,542 | 6,196 |
Increase in cash surrender value of BOLI | 3,208 | 2,719 | 2,526 |
Death benefits in excess of cash surrender value of life insurance |  | 1,728 |  |
Total noninterest income | 39,079 | 39,501 | 37,980 |
Total net revenue | $ 242,218 | $ 234,299 | $ 210,042 |
Net-revenue concentration (as percent) | 63.00% | 65.00% | 65.00% |
Warehouse Lending |  |  |  |
Revenue recognition |  |  |  |
Net interest income | $ 12,469 | $ 9,447 | $ 13,729 |
NONINTEREST INCOME: |  |  |  |
Total noninterest income | 62 | 44 | 50 |
Total net revenue | $ 12,531 | $ 9,491 | $ 13,779 |
Net-revenue concentration (as percent) | 3.00% | 3.00% | 4.00% |
Republic Processing Group |  |  |  |
Revenue recognition |  |  |  |
Net interest income | $ 96,546 | $ 84,533 | $ 50,900 |
NONINTEREST INCOME: |  |  |  |
Program fees | 17,818 | 15,582 | 16,172 |
Total noninterest income | 33,509 | 31,912 | 51,780 |
Total net revenue | $ 130,055 | $ 116,445 | $ 102,680 |
Net-revenue concentration (as percent) | 34.00% | 32.00% | 31.00% |
Tax Refund Solutions |  |  |  |
Revenue recognition |  |  |  |
Net interest income | $ 34,420 | $ 29,557 | $ 16,896 |
NONINTEREST INCOME: |  |  |  |
Total noninterest income | 15,536 | 16,089 | 35,504 |
Total net revenue | $ 49,956 | $ 45,646 | $ 52,400 |
Net-revenue concentration (as percent) | 13.00% | 13.00% | 16.00% |
Republic Payment Solutions |  |  |  |
Revenue recognition |  |  |  |
Net interest income | $ 11,811 | $ 15,729 | $ 4,819 | $ 4,819
NONINTEREST INCOME: |  |  |  |
Program fees | 3,121 | 2,827 | 2,872 | 2,872
Total noninterest income | 3,272 | 2,985 | $ 2,976 | 2,976
Total net revenue | $ 15,083 | $ 18,714 |  | $ 7,795
Net-revenue concentration (as percent) | 4.00% | 5.00% | 2.00% | 2.00%
Republic Credit Solutions |  |  |  |
Revenue recognition |  |  |  |
Net interest income | $ 50,315 | $ 39,247 | $ 29,185 | $ 29,185
NONINTEREST INCOME: |  |  |  |
Program fees | 14,697 | 12,755 | 13,300 | 13,300
Total noninterest income | 14,701 | 12,838 | $ 13,300 | 13,300
Total net revenue | $ 65,016 | $ 52,085 |  | $ 42,485
Net-revenue concentration (as percent) | 17.00% | 14.00% | 13.00% | 13.00%
Service charges on deposit accounts |  |  |  |
NONINTEREST INCOME: |  |  |  |
Revenue under 606 | $ 14,186 | $ 13,855 | $ 13,426 |
Service charges on deposit accounts | Core Banking Activities |  |  |  |
NONINTEREST INCOME: |  |  |  |
Revenue under 606 | 14,182 | 13,854 | 13,438 |
Service charges on deposit accounts | Traditional Banking |  |  |  |
NONINTEREST INCOME: |  |  |  |
Revenue under 606 | 14,120 | 13,810 | 13,388 |
Service charges on deposit accounts | Warehouse Lending |  |  |  |
NONINTEREST INCOME: |  |  |  |
Revenue under 606 | 62 | 44 | 50 |
Service charges on deposit accounts | Republic Processing Group |  |  |  |
NONINTEREST INCOME: |  |  |  |
Revenue under 606 | 4 | 1 | (12) |
Service charges on deposit accounts | Tax Refund Solutions |  |  |  |
NONINTEREST INCOME: |  |  |  |
Revenue under 606 |  |  | (12) |
Service charges on deposit accounts | Republic Payment Solutions |  |  |  |
NONINTEREST INCOME: |  |  |  |
Revenue under 606 | 1 |  |  |
Service charges on deposit accounts | Republic Credit Solutions |  |  |  |
NONINTEREST INCOME: |  |  |  |
Revenue under 606 | 3 | 1 |  |
Net refund transfer fees |  |  |  |
NONINTEREST INCOME: |  |  |  |
Revenue under 606 | 15,356 | 15,748 | 17,080 |
Net refund transfer fees | Republic Processing Group |  |  |  |
NONINTEREST INCOME: |  |  |  |
Revenue under 606 | 15,356 | 15,748 | 17,080 |
Net refund transfer fees | Tax Refund Solutions |  |  |  |
NONINTEREST INCOME: |  |  |  |
Revenue under 606 | 15,356 | 15,748 | 17,080 |
Interchange fee income |  |  |  |
NONINTEREST INCOME: |  |  |  |
Revenue under 606 | 12,967 | 13,057 | 13,125 |
Interchange fee income | Core Banking Activities |  |  |  |
NONINTEREST INCOME: |  |  |  |
Revenue under 606 | 12,855 | 12,926 | 12,943 |
Interchange fee income | Traditional Banking |  |  |  |
NONINTEREST INCOME: |  |  |  |
Revenue under 606 | 12,855 | 12,926 | 12,943 |
Interchange fee income | Republic Processing Group |  |  |  |
NONINTEREST INCOME: |  |  |  |
Revenue under 606 | 112 | 131 | 182 |
Interchange fee income | Tax Refund Solutions |  |  |  |
NONINTEREST INCOME: |  |  |  |
Revenue under 606 | 108 | 126 | 176 |
Interchange fee income | Republic Payment Solutions |  |  |  |
NONINTEREST INCOME: |  |  |  |
Revenue under 606 | 3 | 4 |  | $ 6
Interchange fee income | Republic Credit Solutions |  |  |  |
NONINTEREST INCOME: |  |  |  |
Revenue under 606 | 1 | 1 |  |
Net losses on other real estate owned |  |  |  |
NONINTEREST INCOME: |  |  |  |
Revenue under 606 | (206) | (211) | (211) |
Net losses on other real estate owned | Core Banking Activities |  |  |  |
NONINTEREST INCOME: |  |  |  |
Revenue under 606 | (206) | (211) | (211) |
Net losses on other real estate owned | Traditional Banking |  |  |  |
NONINTEREST INCOME: |  |  |  |
Revenue under 606 | (206) | (211) | (211) |
Contract termination fee |  |  |  |
NONINTEREST INCOME: |  |  |  |
Revenue under 606 |  | 1,728 | 5,000 |
Contract termination fee | Core Banking Activities |  |  |  |
NONINTEREST INCOME: |  |  |  |
Revenue under 606 |  | 1,728 |  |
Contract termination fee | Traditional Banking |  |  |  |
NONINTEREST INCOME: |  |  |  |
Revenue under 606 |  | 1,728 |  |
Contract termination fee | Republic Processing Group |  |  |  |
NONINTEREST INCOME: |  |  |  |
Revenue under 606 |  |  | 5,000 |
Contract termination fee | Tax Refund Solutions |  |  |  |
NONINTEREST INCOME: |  |  |  |
Revenue under 606 |  |  | 5,000 |
Legal settlement |  |  |  |
NONINTEREST INCOME: |  |  |  |
Revenue under 606 |  |  | 13,000 |
Legal settlement | Republic Processing Group |  |  |  |
NONINTEREST INCOME: |  |  |  |
Revenue under 606 |  |  | 13,000 |
Legal settlement | Tax Refund Solutions |  |  |  |
NONINTEREST INCOME: |  |  |  |
Revenue under 606 |  |  | 13,000 |
Other |  |  |  |
NONINTEREST INCOME: |  |  |  |
Revenue under 606 | 3,883 | 5,437 | 3,496 |
Other | Core Banking Activities |  |  |  |
NONINTEREST INCOME: |  |  |  |
Revenue under 606 | 3,664 | 4,987 |  |
Other | Traditional Banking |  |  |  |
NONINTEREST INCOME: |  |  |  |
Revenue under 606 | 3,664 | 4,987 |  |
Other | Republic Processing Group |  |  |  |
NONINTEREST INCOME: |  |  |  |
Revenue under 606 | 219 | 450 |  |
Other | Tax Refund Solutions |  |  |  |
NONINTEREST INCOME: |  |  |  |
Revenue under 606 | 72 | 215 |  |
Other | Republic Payment Solutions |  |  |  |
NONINTEREST INCOME: |  |  |  |
Revenue under 606 | $ 147 | 154 |  |
Other | Republic Credit Solutions |  |  |  |
NONINTEREST INCOME: |  |  |  |
Revenue under 606 |  | $ 81 |  |
Other |  |  |  |
NONINTEREST INCOME: |  |  |  |
Revenue under 606 |  |  | 3,496 |
Other | Core Banking Activities |  |  |  |
NONINTEREST INCOME: |  |  |  |
Revenue under 606 |  |  | 3,138 |
Other | Traditional Banking |  |  |  |
NONINTEREST INCOME: |  |  |  |
Revenue under 606 |  |  | 3,138 |
Other | Republic Processing Group |  |  |  |
NONINTEREST INCOME: |  |  |  |
Revenue under 606 |  |  | 358 |
Other | Tax Refund Solutions |  |  |  |
NONINTEREST INCOME: |  |  |  |
Revenue under 606 |  |  | $ 260 |
Other | Republic Payment Solutions |  |  |  |
NONINTEREST INCOME: |  |  |  |
Revenue under 606 |  |  |  | $ 98

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