FAIR VALUES - Schedule of Changes in Fair Value of Financial Instruments (Details) - Investments in loans and other notes $ in Thousands	3 Months Ended
Mar. 31, 2026 USD ($)
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Fair value, beginning of period	$ 1,176,561
Principal fundings of investments in loans and other notes	535,884
Origination and other fees received on investments in loans and other notes	(5,371)
Principal collections from investments in loans and other notes	(19,323)
Net accretion of discount and amortization of premium on investments	1,756
Foreign currency translation	(577)
Net unrealized gain	(537)
Fair value, end of period	$ 1,688,393

Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Fees Received

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Amount of gain (loss) recognized in income from asset measured at fair value on recurring basis using unobservable input (level 3).

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Amount of purchases of financial instrument classified as an asset measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing.

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