Related Party Transactions - Schedule of the Fees and Expenses Accrued (Details) - USD ($) $ in Thousands		3 Months Ended		6 Months Ended
		Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023	Dec. 31, 2023
Related Party Transaction [Line Items]
Administrative services expenses		$ 1,535	$ 1,359	$ 3,070	$ 2,679
Management fees		8,965	8,705	18,077	19,179
Investment company, contractual fee waived	[1]	3	19	3	274
Management fees payable		8,962		8,962		$ 8,416
Related Party | Investment Advisory Agreement
Related Party Transaction [Line Items]
Base management fee		8,962	8,686	18,074	18,905
Administrative services expenses		1,535	1,359	3,070	2,679
Management fees				17,528	21,404
Investment company, contractual fee waived		3	$ 19	3	274
Management fees payable		$ 8,962		8,962
Accounting and administrative fees				1,373	1,649
Payment for administrative services expenses				$ 1,949	$ 2,933

[1] See Note 4 for a discussion of the offset by FS/EIG Advisor, LLC, the Company's investment adviser, of certain management fees to which it was otherwise entitled during the applicable period.