Consolidated Statement of Changes in Unitholders' Capital - USD ($) $ in Thousands		12 Months Ended
		Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest [Abstract]
Net investment income		$ 28,568	$ 20,250	$ 9,287
Net realized gain		80	0	12
Net change in unrealized gain (loss)		(9,020)	156	2,632
Net Income (Loss)		19,628	20,406	11,931
Distributions to unitholders (see note 9):
From distributable earnings		(28,881)	(20,265)	(11,960)
Return of capital		417	0	0
Net Distributions To Unitholders		(28,881)	(20,265)	(11,960)
Investment Company, Capital Share Transaction, Increase (Decrease) [Abstract]
Contributions		81,300	20,000	80,000
Net increase in unitholders' capital resulting from capital activity		81,300	20,000	80,000
Total increase in unitholders' capital		72,047	20,141	79,971
Unitholders' capital, beginning of year	[1]	196,254	176,113	96,142
Unitholders' capital, end of year	[1]	$ 268,301	$ 196,254	$ 176,113
Units issued		7,718,212	1,855,288	7,551,101
Net increase from capital unit activity		7,718,212	1,855,288	7,551,101

[1] Calculated using the average Units outstanding method. Weighted average Units outstanding for the years ended December 31, 2023, December 31, 2022, December 31, 2021, December 31, 2020 and the period March 12, 2019 through December 31, 2019 were 24,633,290, 18,174,203, 11,759,898, 8,695,917 and 3,243,482, respectively