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INTANGIBLE ASSETS (Schedule of Goodwill and Intangible Assets by Operating Segment) (Details) - USD ($) $ in Thousands | Dec. 31, 2024 | Jun. 30, 2024 | Apr. 01, 2024 | Dec. 31, 2023
--- | --- | --- | --- | ---
Finite-Lived Intangible Assets [Line Items] |  |  |  |
Goodwill | $ 1,214,053 |  |  | $ 925,211
Intangible Assets | 84,563 |  |  | 19,183
American National |  |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |  |
Goodwill | 288,842 |  | $ 288,842 | 0
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 | American National |  |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |  |
Intangible Assets |  | $ 76,300 |  |
Operating segments | Wholesale Banking |  |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |  |
Goodwill | 850,035 |  |  | 639,180
Intangible Assets | 8,714 |  |  | 1,302
Operating segments | Wholesale Banking | American National |  |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |  |
Goodwill |  | 210,800 |  |
Intangible Assets |  | 8,400 |  |
Operating segments | Consumer Banking |  |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |  |
Goodwill | 364,018 |  |  | 286,031
Intangible Assets | 778 |  |  | 989
Operating segments | Consumer Banking | American National |  |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |  |
Goodwill |  | $ 78,000 |  |
Corporate Other |  |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |  |
Goodwill | 0 |  |  | 0
Intangible Assets | $ 75,071 |  |  | $ 16,892

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