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BUSINESS COMBINATIONS (Details) - USD ($) $ in Millions | Oct. 27, 2025 | Oct. 20, 2025 | Sep. 30, 2025 | Dec. 31, 2024
--- | --- | --- | --- | ---
Business Combination [Line Items] |  |  |  |
Assets |  |  | $ 210,228 | $ 204,230
Loans and leases |  |  | 137,956 | 130,042
Deposits |  |  | 165,212 | $ 162,448
Veritex Holdings, Inc. |  |  |  |
Business Combination [Line Items] |  |  |  |
Assets |  |  | 12,800 |
Loans and leases |  |  | 9,600 |
Deposits |  |  | 10,800 |
Cadence Bank |  |  |  |
Business Combination [Line Items] |  |  |  |
Assets |  |  | 53,000 |
Loans and leases |  |  | 37,000 |
Deposits |  |  | $ 44,000 |
Cadence Bank | Subsequent Event | Series A Non-Cumulative Perpetual Preferred Stock |  |  |  |
Business Combination [Line Items] |  |  |  |
Dividend Rate | 5.50% |  |  |
Veritex Holdings, Inc. | Subsequent Event |  |  |  |
Business Combination [Line Items] |  |  |  |
Share issuance ratio |  | 1.95 |  |
Consideration transferred |  | $ 1,700 |  |
Veritex Holdings, Inc. | Subsequent Event | Veritex Shareholders Common Stock |  |  |  |
Business Combination [Line Items] |  |  |  |
Common stock issued (in shares) |  | 107,000,000 |  |
Veritex Holdings, Inc. | Subsequent Event | Conversion of Certain Veritex Equity Awards |  |  |  |
Business Combination [Line Items] |  |  |  |
Shares issued |  | 1,000,000 |  |
Cadence Bank | Subsequent Event | Common Stock |  |  |  |
Business Combination [Line Items] |  |  |  |
Share issuance ratio | 2.475 |  |  |
Cadence Bank | Subsequent Event | Series A Non-Cumulative Perpetual Preferred Stock |  |  |  |
Business Combination [Line Items] |  |  |  |
Share issuance ratio | 0.001 |  |  |

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