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MERGERS AND ACQUISITIONS - Schedule of Reconciliation Between the Purchase Price and the Fair Value (Details) - USD ($) $ in Thousands | Mar. 01, 2025 | Apr. 01, 2024
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CrossFirst |  |
PCD Financial Assets |  |
Gross contractual receivable for PCD financial assets | $ 4,790,000 |
Fair value of PCD financial assets | 4,700,000 |
CrossFirst | Financial Asset Acquired with Credit Deterioration |  |
PCD Financial Assets |  |
Gross contractual receivable for PCD financial assets | 1,428,978 |
ACL recorded for estimated uncollectible contractual cash flows specific to PCD financial assets | (100,783) |
Interest premium (discount) specific to PCD financial assets | (3,063) |
Fair value of PCD financial assets | 1,325,132 |
Receivables acquired with previously charged-off principal | $ 110,700 |
M&M | Financial Asset Acquired with Credit Deterioration |  |
PCD Financial Assets |  |
Gross contractual receivable for PCD financial assets |  | $ 29,290
ACL recorded for estimated uncollectible contractual cash flows specific to PCD financial assets |  | (1,243)
Interest premium (discount) specific to PCD financial assets |  | (1,773)
Fair value of PCD financial assets |  | $ 26,274

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