Statements of Assets and Liabilities (Parenthetical) - USD ($) $ in Thousands	Sep. 30, 2023	Jun. 30, 2023
Statement of Financial Position [Abstract]
Investment in LTC, at fair value (cost $139,801 and $140,684 as of September 30, 2023 and June 30, 2023, respectively)	$ 139,801	$ 140,684