| **SECURITIES FINANCING ACTIVITIES - Securities Loaned or Sold under Agreements to Repurchase (Details) - USD ($) $ in Thousands** | Mar. 31, 2023 | Dec. 31, 2022 |
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| **Banking and Thrift, Other Disclosure [Abstract]**                                                                               |          |          |
| Securities sold under agreements to repurchase                                                                                    | $ 21,034,072  | $ 15,382,819  |

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| - References
No definition available.
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| - Definition
Amount, after the effects of master netting arrangements, of funds outstanding borrowed in the form of a security repurchase agreement between the entity and another party for the sale and repurchase of identical or substantially the same securities at a date certain for a specified price. Includes liabilities not subject to a master netting arrangement and not elected to be offset.
+ References
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