INVESTMENTS - Narrative (Details) - Investments at Fair Value - Investment Type Concentration Risk	3 Months Ended	12 Months Ended
Mar. 31, 2024	Dec. 31, 2023
Schedule of Investments [Line Items]
Concentration risk, percentage	100.00%	100.00%
Debt Securities, Variable Rate
Schedule of Investments [Line Items]
Concentration risk, percentage	86.40%	84.74%
Debt Securities, Fixed Rate
Schedule of Investments [Line Items]
Concentration risk, percentage	13.60%	15.26%

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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