N-2 - $ / shares |
3 Months Ended | |||||
|---|---|---|---|---|---|---|
Mar. 31, 2026 |
Dec. 31, 2025 |
Mar. 31, 2025 |
Dec. 31, 2024 |
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| Cover [Abstract] | ||||||
| Entity Central Index Key | 0001973476 | |||||
| Amendment Flag | false | |||||
| Securities Act File Number | 814-01654 | |||||
| Document Type | 10-Q | |||||
| Entity Registrant Name | North Haven Private Income Fund A LLC | |||||
| Entity Address, Address Line One | 1585 Broadway | |||||
| Entity Address, City or Town | New York | |||||
| Entity Address, State or Province | NY | |||||
| Entity Address, Postal Zip Code | 10036 | |||||
| City Area Code | 212 | |||||
| Local Phone Number | 761-4000 | |||||
| Entity Emerging Growth Company | true | |||||
| Entity Ex Transition Period | true | |||||
| General Description of Registrant [Abstract] | ||||||
| Risk Factors [Table Text Block] | Item 1A. Risk Factors In addition to the other information set forth in this Report, you should carefully consider the risk factors previously disclosed under Item 1A of our Annual Report on Form 10-K, which could materially affect our business, financial condition and/or operating results. The risks disclosed in the Annual Report on Form 10-K are not the only risks facing us. Additional risks and uncertainties not currently known to us or that we currently deem to be immaterial may also materially and adversely affect our business, financial condition and/or operating results. |
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| NAV Per Share | [1] | $ 19.83 | $ 20.14 | $ 20.18 | $ 20.28 | |
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