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GOODWILL AND INTANGIBLE ASSETS (Schedule of Goodwill and Intangible Assets by Operating Segment) (Details) - USD ($) $ in Thousands | Mar. 31, 2025 | Dec. 31, 2024 | Apr. 01, 2024
--- | --- | --- | ---
Finite-Lived Intangible Assets [Line Items] |  |  |
Goodwill | $ 1,214,053 | $ 1,214,053 |
Intangible Assets | 79,165 | 84,563 |
American National |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |
Goodwill | 288,800 |  | $ 288,842
Wholesale Banking | American National |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |
Goodwill |  |  | 210,800
Consumer Banking | American National |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |
Goodwill |  |  | $ 78,000
Operating segments | Wholesale Banking |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |
Goodwill | 850,035 | 850,035 |
Intangible Assets | 8,410 | 8,714 |
Operating segments | Consumer Banking |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |
Goodwill | 364,018 | 364,018 |
Intangible Assets | 737 | 778 |
Corporate Other |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |
Goodwill | 0 | 0 |
Intangible Assets | $ 70,018 | $ 75,071 |

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