Financial Highlights - Summary of Financial Highlights of the Fund (Detail) - USD ($)

3 Months Ended

Mar. 31, 2026

Mar. 31, 2025

Dec. 31, 2025

Dec. 31, 2024

Investment Company, Financial Highlights [Abstract]

Net asset value, beginning of period

^[1]

$ 25.2

$ 25.36

Net investment income (loss)

^[1]

0.53

0.66

Net realized and unrealized gains (losses) on investments

^[1]

(0.47)

Net increase (decrease) in net assets resulting from operations

^[1]

0.06

0.65

Distributions to shareholders

^[1]

(0.6)

(0.66)

Net asset value, end of period

^[1]

$ 24.66

$ 25.35

Shares outstanding, end of period

6,767,371

^[1]

4,698,131

^[1]

6,468,498

Total return at net asset value before incentive fees

^[1],[2],[3]

0.47%

2.88%

Total return at net asset value after incentive fees

^[1],[2],[3]

0.23%

2.63%

Net assets, end of period

$ 166,880,689

^[1]

$ 119,092,926

^[1]

$ 163,008,247

$ 116,526,076

Ratio of total expenses to weighted average net assets

^[1],[4]

11.83%

16.32%

Ratio of net expenses to weighted average net assets

^[1],[4]

10.56%

13.67%

Ratio of net investment income (loss) before waivers to weighted average net assets

^[1],[4]

8.13%

8.82%

Ratio of net investment income (loss) after waivers to weighted average net assets

^[1],[4]

9.40%

11.47%

Ratio of interest and credit facility expenses to weighted average net assets

^[1],[4]

8.21

11.4

Ratio of incentive fees to weighted average net assets

^[1],[2]

0.25%

Portfolio turnover rate

^[1],[2]

1.73%

4.27%

Asset coverage ratio

^[1],[5]

178

171

[1]	The per share data was derived by using the weighted average shares outstanding during the applicable period, except for distributions recorded which reflects the actual amount per share for the applicable period.
[2]	Not annualized.
[3]	Total return based on NAV is calculated as the change in NAV per share during the respective periods, assuming dividends and distributions, if any, are reinvested in accordance with the Fund’s distribution reinvestment plan.
[4]	Annualized, except for offering, incentive fees, and organizational expenses.
[5]	Asset coverage ratio is equal to (i) the sum of (A) net assets at end of period and (B) debt outstanding at end of period, divided by (ii) total debt outstanding at the end of the period.

AB Private Lending Fund 10-Q