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PARENT COMPANY STATEMENTS - Schedule of Condensed Statements of Income and Comprehensive Income (Loss) (Details) - USD ($) $ in Thousands | 3 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 31, 2024 | Sep. 30, 2024 | Jun. 30, 2024 | Mar. 31, 2024 | Dec. 31, 2023 | Sep. 30, 2023 | Jun. 30, 2023 | Mar. 31, 2023 | Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022
Condensed Financial Statements, Captions [Line Items] |  |  |  |  |  |  |  |  |  |  |
Other income |  |  |  |  |  |  |  |  | $ 4,674 | $ 9,141 | $ 1,874
Income tax benefit | $ (5,036) | $ (4,400) | $ (4,373) | $ (4,402) | $ (6,436) | $ (4,479) | $ (1,880) | $ (3,771) | (18,211) | (16,566) | (21,347)
NET INCOME | $ 24,190 | $ 23,338 | $ 22,549 | $ 23,401 | $ 29,626 | $ 25,252 | $ 14,611 | $ 24,278 | 93,478 | 93,767 | 103,817
COMPREHENSIVE INCOME (LOSS) |  |  |  |  |  |  |  |  | 82,173 | 127,495 | (101,199)
Reportable Legal Entities | Parent Company |  |  |  |  |  |  |  |  |  |  |
Condensed Financial Statements, Captions [Line Items] |  |  |  |  |  |  |  |  |  |  |
Other income |  |  |  |  |  |  |  |  | 2 | 5 | 1
Miscellaneous expense |  |  |  |  |  |  |  |  | (5,642) | (4,768) | (8,795)
INCOME BEFORE INCOME TAXES AND EQUITY IN UNDISTRIBUTED INCOME OF SUBSIDIARIES |  |  |  |  |  |  |  |  | 36,478 | 43,025 | 33,096
Income tax benefit |  |  |  |  |  |  |  |  | 1,608 | 1,957 | 2,770
INCOME BEFORE EQUITY IN UNDISTRIBUTED INCOME OF SUBSIDIARIES |  |  |  |  |  |  |  |  | 38,086 | 44,982 | 35,866
Equity in undistributed income of subsidiaries |  |  |  |  |  |  |  |  | 55,392 | 48,785 | 67,951
NET INCOME |  |  |  |  |  |  |  |  | 93,478 | 93,767 | 103,817
COMPREHENSIVE INCOME (LOSS) |  |  |  |  |  |  |  |  | 82,173 | 127,495 | (101,199)
Reportable Legal Entities | Parent Company | Lake City Bank |  |  |  |  |  |  |  |  |  |  |
Condensed Financial Statements, Captions [Line Items] |  |  |  |  |  |  |  |  |  |  |
Dividends from Lake City Bank and non-bank subsidiaries |  |  |  |  |  |  |  |  | 42,118 | 46,263 | 40,590
Reportable Legal Entities | Parent Company | Non-Bank Subsidiaries |  |  |  |  |  |  |  |  |  |  |
Condensed Financial Statements, Captions [Line Items] |  |  |  |  |  |  |  |  |  |  |
Dividends from Lake City Bank and non-bank subsidiaries |  |  |  |  |  |  |  |  | $ 0 | $ 1,525 | $ 1,300

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