Investments in DSTs (Details) - USD ($) $ in Thousands	Jun. 30, 2025	Dec. 31, 2024
Schedule of Investments [Line Items]
Carrying Amount	$ 33,559	$ 30,559
Investment, Identifier [Axis]: NexPoint Life Sciences II DST
Schedule of Investments [Line Items]
Number of Shares (in shares)	1,044,040	1,044,040
Carrying Amount	$ 9,600	$ 9,600
Investment, Identifier [Axis]: NexPoint Semiconductor DST
Schedule of Investments [Line Items]
Number of Shares (in shares)	2,625,618	2,296,851
Carrying Amount	$ 23,959	$ 20,959