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ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS) (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2025 | Sep. 30, 2024 | Sep. 30, 2025 | Sep. 30, 2024
AOCI Attributable to Parent, Net of Tax [Roll Forward] |  |  |  |
Beginning balance | $ 2,412,546 | $ 1,333,810 | $ 1,383,269 | $ 1,271,981
Ending balance | 2,448,835 | 1,402,884 | 2,448,835 | 1,402,884
Total |  |  |  |
AOCI Attributable to Parent, Net of Tax [Roll Forward] |  |  |  |
Beginning balance | (155,311) | (220,326) | (207,039) | (218,803)
Ending balance | (136,801) | (170,913) | (136,801) | (170,913)
Unrealized Gains (Losses) on Debt Securities Available For Sale and Unrealized Gains (Losses) on Cash Flow Hedges |  |  |  |
AOCI Attributable to Parent, Net of Tax [Roll Forward] |  |  |  |
Unrealized holding gains (losses), net | 15,963 | 46,725 | 51,771 | 35,021
Amounts reclassified from AOCI, net and amortization of unrecognized losses on securities transferred to held to maturity | 1,722 | 1,698 | 16,286 | 9,870
Unrealized Gains (Losses) on Debt Securities Available For Sale |  |  |  |
AOCI Attributable to Parent, Net of Tax [Roll Forward] |  |  |  |
Beginning balance | (125,745) | (176,246) | (165,680) | (176,636)
Unrealized holding gains (losses), net | 16,326 | 39,286 | 44,895 | 34,810
Amounts reclassified from AOCI, net and amortization of unrecognized losses on securities transferred to held to maturity | 1 | 8 | 11,367 | 4,874
Ending balance | (109,418) | (136,952) | (109,418) | (136,952)
Unrealized Gains (Losses) on Cash Flow Hedges |  |  |  |
AOCI Attributable to Parent, Net of Tax [Roll Forward] |  |  |  |
Beginning balance | (9,368) | (20,616) | (19,805) | (16,694)
Unrealized holding gains (losses), net | (363) | 7,439 | 6,876 | 211
Amounts reclassified from AOCI, net and amortization of unrecognized losses on securities transferred to held to maturity | 1,721 | 1,690 | 4,919 | 4,996
Ending balance | (8,010) | (11,487) | (8,010) | (11,487)
Unrecognized Gains (Losses) on Debt Securities Held to Maturity |  |  |  |
AOCI Attributable to Parent, Net of Tax [Roll Forward] |  |  |  |
Beginning balance | (20,198) | (23,464) | (21,554) | (25,473)
Amounts reclassified from AOCI, net and amortization of unrecognized losses on securities transferred to held to maturity | 825 | 990 | 2,181 | 2,999
Ending balance | $ (19,373) | $ (22,474) | $ (19,373) | $ (22,474)

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