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DERIVATIVE INSTRUMENTS - Schedule of Gross and Net Amounts of Recognized Derivative Assets and Liabilities at Fair Value (Details) - USD ($) $ in Thousands | Mar. 31, 2024 | Dec. 31, 2023
--- | --- | ---
Derivative Assets |  |
Gross Amounts of Recognized Assets | $ 8,116 | $ 44,724
Gross Amounts Offset in the Balance Sheet | 0 | 0
Net Amounts of Assets Presented in the Balance Sheet | 8,116 | 44,724
Collateral Received | 0 | 0
Net Amount | 8,116 | 44,724
Derivative Liabilities |  |
Gross Amounts of Recognized Liabilities | 10,603 | 29,991
Gross Amounts Offset in the Balance Sheet | 0 | 0
Net Amounts of Liabilities Presented in the Balance Sheet | 10,603 | 29,991
Collateral Pledged | 4,590 | 6,968
Net Amount | 6,013 | 23,023
Derivative instruments not designated as hedges |  |
Derivative Assets |  |
Gross Amounts of Recognized Assets | 7,625 | 44,724
Gross Amounts Offset in the Balance Sheet | 0 | 0
Net Amounts of Assets Presented in the Balance Sheet | 7,625 | 44,724
Collateral Received | 0 | 0
Net Amount | 7,625 | 44,724
Derivative Liabilities |  |
Gross Amounts of Recognized Liabilities | 10,603 | 26,112
Gross Amounts Offset in the Balance Sheet | 0 | 0
Net Amounts of Liabilities Presented in the Balance Sheet | 10,603 | 26,112
Collateral Pledged | 4,590 | 6,968
Net Amount | 6,013 | 19,144
Derivative instruments not designated as hedges | Interest rate futures |  |
Derivative Assets |  |
Gross Amounts of Recognized Assets | 1,879 | 13,162
Gross Amounts Offset in the Balance Sheet | 0 | 0
Net Amounts of Assets Presented in the Balance Sheet | 1,879 | 13,162
Collateral Received | 0 | 0
Net Amount | 1,879 | 13,162
Derivative Liabilities |  |
Gross Amounts of Recognized Liabilities | 83 | 5,768
Gross Amounts Offset in the Balance Sheet | 0 | 0
Net Amounts of Liabilities Presented in the Balance Sheet | 83 | 5,768
Collateral Pledged | 83 | 5,720
Net Amount | 0 | 48
Derivative instruments not designated as hedges | Foreign currency forward contracts, underwriting and non-investment operations |  |
Derivative Assets |  |
Gross Amounts of Recognized Assets | 3,845 | 16,827
Gross Amounts Offset in the Balance Sheet | 0 | 0
Net Amounts of Assets Presented in the Balance Sheet | 3,845 | 16,827
Collateral Received | 0 | 0
Net Amount | 3,845 | 16,827
Derivative Liabilities |  |
Gross Amounts of Recognized Liabilities | 5,183 | 11,890
Gross Amounts Offset in the Balance Sheet | 0 | 0
Net Amounts of Liabilities Presented in the Balance Sheet | 5,183 | 11,890
Collateral Pledged | 3,150 | 0
Net Amount | 2,033 | 11,890
Derivative instruments not designated as hedges | Foreign currency forward contracts, investment operations |  |
Derivative Assets |  |
Gross Amounts of Recognized Assets | 16 | 10,448
Gross Amounts Offset in the Balance Sheet | 0 | 0
Net Amounts of Assets Presented in the Balance Sheet | 16 | 10,448
Collateral Received | 0 | 0
Net Amount | 16 | 10,448
Derivative Liabilities |  |
Gross Amounts of Recognized Liabilities | 2,344 | 2,603
Gross Amounts Offset in the Balance Sheet | 0 | 0
Net Amounts of Liabilities Presented in the Balance Sheet | 2,344 | 2,603
Collateral Pledged | 0 | 0
Net Amount | 2,344 | 2,603
Derivative instruments not designated as hedges | Credit default swaps |  |
Derivative Assets |  |
Gross Amounts of Recognized Assets | 243 | 749
Gross Amounts Offset in the Balance Sheet | 0 | 0
Net Amounts of Assets Presented in the Balance Sheet | 243 | 749
Collateral Received | 0 | 0
Net Amount | 243 | 749
Derivative Liabilities |  |
Gross Amounts of Recognized Liabilities | 1,357 | 1,248
Gross Amounts Offset in the Balance Sheet | 0 | 0
Net Amounts of Liabilities Presented in the Balance Sheet | 1,357 | 1,248
Collateral Pledged | 1,357 | 1,248
Net Amount | 0 | 0
Derivative instruments not designated as hedges | Commodity options |  |
Derivative Assets |  |
Gross Amounts of Recognized Assets | 1,642 | 3,538
Gross Amounts Offset in the Balance Sheet | 0 | 0
Net Amounts of Assets Presented in the Balance Sheet | 1,642 | 3,538
Collateral Received | 0 | 0
Net Amount | 1,642 | 3,538
Derivative Liabilities |  |
Gross Amounts of Recognized Liabilities | 1,636 | 3,162
Gross Amounts Offset in the Balance Sheet | 0 | 0
Net Amounts of Liabilities Presented in the Balance Sheet | 1,636 | 3,162
Collateral Pledged | 0 | 0
Net Amount | 1,636 | 3,162
Derivative instruments not designated as hedges | Commodity futures |  |
Derivative Liabilities |  |
Gross Amounts of Recognized Liabilities |  | 1,441
Gross Amounts Offset in the Balance Sheet |  | 0
Net Amounts of Liabilities Presented in the Balance Sheet |  | 1,441
Collateral Pledged |  | 0
Net Amount |  | 1,441
Derivative instruments designated as hedges | Foreign currency forward contracts, investment operations |  |
Derivative Assets |  |
Gross Amounts of Recognized Assets | 491 |
Gross Amounts Offset in the Balance Sheet | 0 |
Net Amounts of Assets Presented in the Balance Sheet | 491 |
Collateral Received | 0 |
Net Amount | $ 491 |
Derivative Liabilities |  |
Gross Amounts of Recognized Liabilities |  | 3,879
Gross Amounts Offset in the Balance Sheet |  | 0
Net Amounts of Liabilities Presented in the Balance Sheet |  | 3,879
Collateral Pledged |  | 0
Net Amount |  | $ 3,879

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