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v3.25.3

ACQUISITIONS (Narrative) (Details) $ in Thousands, shares in Millions |  | 3 Months Ended | 9 Months Ended |
--- | --- | --- | --- | ---
Apr. 01, 2025 USD ($) item shares | Sep. 30, 2025 USD ($) | Jun. 30, 2025 USD ($) | Sep. 30, 2024 USD ($) | Jun. 30, 2024 USD ($) | Sep. 30, 2025 USD ($) | Sep. 30, 2024 USD ($) | Dec. 31, 2024 USD ($)
Business Acquisition [Line Items] |  |  |  |  |  |  |  |
Purchase price consideration |  |  | $ 1,275,247 |  | $ 505,746 |  |  |
Goodwill |  | $ 1,726,386 |  |  |  | $ 1,726,386 |  | $ 1,214,053
Merger-related costs |  | 34,812 |  | $ 1,353 |  | 118,652 | $ 33,005 |
American National |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |
Goodwill |  |  |  |  |  |  |  | $ 288,842
Accretion expense |  |  |  |  |  |  | 5,000 |
Merger-related costs |  |  |  | 1,100 |  |  | 26,900 |
Sandy Spring |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |
Conversion ratio | 0.9 |  |  |  |  |  |  |
Additional shares issued | shares | 41.0 |  |  |  |  |  |  |
Purchase price consideration | $ 1,275,969 |  |  |  |  |  |  |
Number of branches acquired | item | 50 |  |  |  |  |  |  |
Goodwill | $ 512,333 | 512,333 |  |  |  | 512,333 |  |
Goodwill, measurement period adjustments |  | 15,400 |  |  |  |  |  |
Accretion expense |  |  |  | $ 21,200 |  | 20,800 | $ 63,700 |
Merger-related costs |  | 26,900 |  |  |  | 94,800 |  |
Sandy Spring | Wholesale Banking |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |
Goodwill |  | 399,600 |  |  |  | 399,600 |  |
Sandy Spring | Consumer Banking |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |
Goodwill |  | $ 112,700 |  |  |  | $ 112,700 |  |

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