Significant Agreements and Related Party Transactions - Additional Information (Details)	3 Months Ended	12 Months Ended
	Dec. 31, 2025 USD ($)	Dec. 31, 2025 USD ($) Component	Dec. 31, 2024 USD ($)	Dec. 31, 2023 USD ($)
Related Party Transaction [Line Items]
Annual management fee percentage	0.25%	1.00%
Management fee		$ 33,449,000	$ 35,232,000	$ 35,470,000
Management fees payable	$ 8,181,000	$ 8,181,000	$ 8,780,000
Number of components included in incentive fees | Component		2
Hurdle rate for incentive fee purpose		1.75%
Incentive fee if no excess income amount		$ 0
Percentage of ordinary income considered for incentive If that exceeds hurdle amount		100.00%
Percentage of Catch-up Amount Multiplied by NAV		2.12%	2.1875%
Percentage ordinary income considered for incentive if that exceeds catchup amount		17.50%	20.00%
Percentage of incentive fee		17.50%	20.00%
Incentive fees		$ 26,224,000	$ 17,212,000	49,417,000
Investment adviser voluntary agreed waive of fees		0		1,986,000
Incentive fees payable	3,844,000	3,844,000	6,330,000
Accrual or payment of incentive fees based on capital gain		0	0	0
Incurred expenses for services provided by Administrator and Custodian fees		2,049,000	2,117,000	2,044,000
Administration and custodian fees payable	512,000	512,000
Incurred expenses for services provided by transfer agent		32,000	27,000	6,000
Transfer agent fees payable	3,000	3,000
Accrued expenses and other liabilities	8,649,000	8,649,000	12,090,000
Incentive Fee
Related Party Transaction [Line Items]
Investment adviser voluntary agreed waive of fees				$ 1,986,000
Related Party | Asset Management Arrangement
Related Party Transaction [Line Items]
Accrued expenses and other liabilities	$ 2,213,000	$ 2,213,000	$ 1,088,000
GS Group Inc
Related Party Transaction [Line Items]
Percentage of ownership of common stock by Affiliates	5.80%	5.80%	5.50%