v3.25.0.1

CONSOLIDATED FINANCIAL HIGHLIGHTS (Details) - USD ($) $ / shares in Units, $ in Thousands	4 Months Ended	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Investment Company, Financial Highlights [Roll Forward]
Net asset value, beginning of period (in dollars per unit)	$ 20.00	$ 19.15	$ 18.72	$ 19.98
Net investment income (loss) (in dollars per unit)	0.02	2.49	2.56	2.29
Net unrealized and realized gain (loss) (in dollars per unit)	(0.02)	(0.28)	0.35	(1.55)
Net increase (decrease) in net assets resulting from operations (in dollars per unit)	0	2.21	2.91	0.74
Dividends declared (in dollars per unit)	(0.04)	(2.42)	(2.48)	(2.01)
Issuance of common units (in dollars per unit)	0.02	0	0	0.01
Total increase (decrease) in net assets (in dollars per unit)	(0.02)	(0.21)	0.43	(1.26)
Net asset value, end of period (in dollars per unit)	$ 19.98	$ 18.94	$ 19.15	$ 18.72
Units outstanding, end of period (in units)	11,747,027	55,022,961	43,350,240	31,090,702
Weighted average units outstanding - basic (in units)	5,989,635	48,791,217	37,686,642	19,376,645
Weighted average units outstanding - diluted (in units)	5,989,635	48,791,217	37,686,642	19,376,645
Total return based on net asset value	0.10%	12.07%	16.36%	3.85%
Ratio/Supplemental Data:
Members' Capital, end of period (in units)	$ 234,730	$ 1,041,965	$ 829,979	$ 582,083
Ratio of total expenses to average Members' Capital	1.78%	10.94%	11.06%	7.52%
Ratio of net investment income to average Members' Capital	0.71%	12.83%	13.33%	11.19%
Ratio of total contributed capital to total committed capital, end of period	23.50%	84.50%	73.50%	58.50%
Asset coverage ratio	210.00%	203.00%	194.00%	186.00%
Portfolio turnover rate	1.16%	16.12%	12.14%	5.75%

Investment Company, Expense Ratio Including Waivers

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Amount of net assets (liabilities).

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Number of shares of common stock outstanding. Common stock represent the ownership interest in a corporation.

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Percentage of capital contributed to capital committed by investment company's investors.

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Per share or unit amount of distribution to shareholders. Includes, but is not limited to, dividend and capital gain. Excludes distribution for tax return of capital.

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A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

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Per share or unit amount of realized and unrealized gain (loss) on investment.

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Per share or unit amount of investment income (loss) and realized and unrealized gain (loss) on investment.

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Per share or unit amount, after investment expense, of dividend and interest investment income (loss).

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Percentage of investment income (loss) to average net assets.

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Per share amount of share issuance by investment company. Includes, but is not limited to, per unit, membership interest, or other ownership interest.

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Percentage of lesser of purchase or sale of portfolio securities to average value of portfolio securities owned.

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Percentage of total assets less all liabilities and indebtedness not represented by senior security, to senior security representing indebtedness.

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Percentage increase (decrease) in portfolio market value assuming reinvestment of dividend and capital gain distribution.

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Net asset value per share or per unit of investments in certain entities that calculate net asset value per share. Includes, but is not limited to, by unit, membership interest, or other ownership interest. Investment includes, but is not limited to, investment in certain hedge funds, venture capital funds, private equity funds, real estate partnerships or funds. Excludes fair value disclosure.

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T Series Middle Market Loan Fund LLC 10-K