Cover Page - USD ($) |
12 Months Ended | ||
|---|---|---|---|
Dec. 31, 2025 |
Mar. 24, 2026 |
Jun. 30, 2025 |
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| Cover [Abstract] | |||
| Document Type | 10-K | ||
| Amendment Flag | false | ||
| Document Transition Report | false | ||
| Document Annual Report | true | ||
| Entity Interactive Data Current | Yes | ||
| Document Period End Date | Dec. 31, 2025 | ||
| Document Fiscal Year Focus | 2025 | ||
| Current Fiscal Year End Date | --12-31 | ||
| Document Fiscal Period Focus | FY | ||
| Entity Registrant Name | AB COMMERCIAL REAL ESTATE PRIVATE DEBT FUND, LLC | ||
| Entity Central Index Key | 0001876255 | ||
| Entity File Number | 000-56320 | ||
| Entity Tax Identification Number | 87-1137341 | ||
| Entity Incorporation, State or Country Code | DE | ||
| Entity Current Reporting Status | Yes | ||
| Entity Shell Company | false | ||
| Entity Filer Category | Non-accelerated Filer | ||
| Entity Small Business | true | ||
| Entity Emerging Growth Company | true | ||
| Entity Ex Transition Period | false | ||
| Entity Address, Address Line One | 66 Hudson Boulevard East | ||
| Entity Address, City or Town | New York | ||
| Entity Address, State or Province | NY | ||
| City Area Code | 212 | ||
| Local Phone Number | 486-5800 | ||
| Entity Address, Postal Zip Code | 10001 | ||
| Entity Well-known Seasoned Issuer | No | ||
| Entity Voluntary Filers | No | ||
| ICFR Auditor Attestation Flag | false | ||
| Entity Common Stock, Shares Outstanding | 42,420,090 | ||
| Auditor Name | PricewaterhouseCoopers LLP | ||
| Auditor Firm ID | 238 | ||
| Auditor Location | New York | ||
| Auditor Opinion [Text Block] | Opinion on the Financial Statements We have audited the accompanying consolidated balance sheets of AB Commercial Real Estate Private Debt Fund, LLC and its subsidiaries (the "Company") as of December 31, 2025 and 2024, and the related consolidated statements of income, of changes in members' capital and of cash flows for each of the three years in the period ended December 31, 2025, including the related notes (collectively referred to as the "consolidated financial statements"). In our opinion, the consolidated financial statements present fairly, in all material respects, the financial position of the Company as of December 31, 2025 and 2024, and the results of its operations and its cash flows for each of the three years in the period ended December 31, 2025 in conformity with accounting principles generally accepted in the United States of America. |
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| Entity Public Float | $ 0 | ||
| Document Financial Statement Error Correction [Flag] | false |
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