Fees, Expenses, Agreements and Related Party Transactions - Administration Agreement (Details) - USD ($) $ in Thousands			12 Months Ended
	May 02, 2022	Oct. 05, 2020	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Related Party Transaction [Line Items]
Administrative service expenses (Note 3)			$ 6,716	$ 6,729	$ 5,767
Affiliated Entity
Related Party Transaction [Line Items]
Due to affiliates			20,721	23,577
Administration Agreement | Affiliated Entity
Related Party Transaction [Line Items]
Term	1 year	2 years
Termination notice period		60 days
Due to affiliates			$ 3,200	$ 2,300
Sub-Administration and Custody Agreement | Affiliated Entity
Related Party Transaction [Line Items]
Term		2 years
Termination notice period		120 days
Renewal term		1 year