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GOODWILL AND IDENTIFIABLE INTANGIBLE ASSETS (Details) - USD ($) $ in Thousands | 3 Months Ended |
--- | --- | ---
Mar. 31, 2025 | Dec. 31, 2024
Identifiable Intangible Assets |  |
Gross Carrying Amount | $ 214,252 | $ 213,206
Accumulated Amortization | (168,442) | (164,960)
Net Carrying Amount | 45,810 | 48,246
Estimated aggregate amortization expense for each of five succeeding fiscal years |  |
Apr - Dec 2025 | 9,465 |
2026 | 11,396 |
2027 | 5,547 |
2028 | 4,208 |
2029 | 3,484 |
Thereafter | 11,710 |
Net Carrying Amount | 45,810 | 48,246
Components of goodwill |  |
Goodwill, beginning of period | 853,225 |
Goodwill, Additions/Adjustments | 1,297 |
Goodwill, end of period | 854,522 |
Core deposit intangibles |  |
Identifiable Intangible Assets |  |
Gross Carrying Amount | 77,373 | 77,373
Accumulated Amortization | (72,874) | (72,225)
Net Carrying Amount | 4,499 | 5,148
Estimated aggregate amortization expense for each of five succeeding fiscal years |  |
Net Carrying Amount | 4,499 | 5,148
Other intangibles |  |
Identifiable Intangible Assets |  |
Gross Carrying Amount | 136,879 | 135,833
Accumulated Amortization | (95,568) | (92,735)
Net Carrying Amount | 41,311 | 43,098
Estimated aggregate amortization expense for each of five succeeding fiscal years |  |
Net Carrying Amount | $ 41,311 | $ 43,098

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