Unit Data and Distributions - Schedule of Changes in Net Assets (Details) - USD ($) $ in Thousands					3 Months Ended				6 Months Ended
	Mar. 27, 2026	Dec. 29, 2025	Mar. 27, 2025	Dec. 27, 2024	Mar. 31, 2026	Dec. 31, 2025	Mar. 31, 2025	Dec. 31, 2024	Mar. 31, 2026	Mar. 31, 2025
Investment Company, Net Assets [Roll Forward]
Net assets at beginning of period					$ 451,158	$ 452,469	$ 454,416	$ 364,291	$ 452,469	$ 364,291
Issuance of common units					3,960	930	0	89,600	4,890	89,600
Distributions to unitholders	$ (12,700)	$ (16,000)	$ (11,000)	$ (11,000)	(12,700)	(16,000)	(11,000)	(11,000)	(28,700)	(22,000)
Net investment income					13,531	12,757	11,443	10,863
Net unrealized appreciation (depreciation)					(5,985)	1,009	(1,429)	778	(4,976)	(651)
Net realized gains (losses)					508	(7)	116	(116)	501	0
Net assets at end of period					450,472	451,158	453,546	454,416	450,472	453,546
Common Units
Investment Company, Net Assets [Roll Forward]
Net assets at beginning of period					450,177	449,247	447,300	357,700	449,247	357,700
Issuance of common units					3,960	930		89,600
Net assets at end of period					454,137	450,177	447,300	447,300	454,137	447,300
Accumulated Earnings
Investment Company, Net Assets [Roll Forward]
Net assets at beginning of period					981	3,222	7,116	6,591	3,222	6,591
Distributions to unitholders					(12,700)	(16,000)	(11,000)	(11,000)
Net investment income					13,531	12,757	11,443	10,863
Net unrealized appreciation (depreciation)					(5,985)	1,009	(1,429)	778
Net realized gains (losses)					508	(7)	116	(116)
Net assets at end of period					$ (3,665)	$ 981	$ 6,246	$ 7,116	$ (3,665)	$ 6,246

Equity impact of the value of new stock issued during the period. Includes shares issued in an initial public offering or a secondary public offering.

- Definition

Amount of equity (deficit) attributable to parent. Excludes temporary equity and equity attributable to noncontrolling interest.

+ References

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+ Details

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