Document and Entity Information - USD ($) |
12 Months Ended | ||
|---|---|---|---|
Dec. 31, 2025 |
Mar. 20, 2026 |
Jun. 30, 2025 |
|
| Document Information [Line Items] | |||
| Document Type | 10-K | ||
| Amendment Flag | false | ||
| Document Period End Date | Dec. 31, 2025 | ||
| Document Fiscal Year Focus | 2025 | ||
| Document Fiscal Period Focus | FY | ||
| Entity Registrant Name | Allurion Technologies, Inc. | ||
| Entity Central Index Key | 0001964979 | ||
| Entity Well-known Seasoned Issuer | No | ||
| Entity Voluntary Filers | No | ||
| Entity Current Reporting Status | Yes | ||
| Current Fiscal Year End Date | --12-31 | ||
| Entity Interactive Data Current | Yes | ||
| Entity Filer Category | Non-accelerated Filer | ||
| Entity Small Business | true | ||
| Entity Emerging Growth Company | true | ||
| Entity Ex Transition Period | false | ||
| ICFR Auditor Attestation Flag | false | ||
| Document Financial Statement Error Correction [Flag] | false | ||
| Entity Shell Company | false | ||
| Entity Incorporation, State or Country Code | DE | ||
| Entity File Number | 001-41767 | ||
| Entity Tax Identification Number | 92-2182207 | ||
| Entity Address, Address Line One | 11 Huron Drive | ||
| Entity Address, City or Town | Natick | ||
| Entity Address, State or Province | MA | ||
| Entity Address, Postal Zip Code | 01760 | ||
| City Area Code | 508 | ||
| Local Phone Number | 647-4000 | ||
| Entity Public Float | $ 20,666,535 | ||
| Entity Common Stock, Shares Outstanding | 14,994,486 | ||
| Document Annual Report | true | ||
| Document Transition Report | false | ||
| Auditor Firm ID | 34 | ||
| Auditor Name | Deloitte & Touche LLP | ||
| Auditor Location | Boston, Massachusetts | ||
| Auditor Opinion | Opinion on the Financial Statements We have audited the accompanying consolidated balance sheets of Allurion Technologies, Inc. and subsidiaries (the "Company") as of December 31, 2025 and 2024, the related consolidated statements of operations, comprehensive loss, stockholders’ deficit, and cash flows, for each of the two years in the period ended December 31, 2025, and the related notes (collectively referred to as the "financial statements"). In our opinion, the 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 two years in the period ended December 31, 2025, in conformity with accounting principles generally accepted in the United States of America. |
||
| Common Stock, par value $0.0001 per share | |||
| Document Information [Line Items] | |||
| Title of 12(b) Security | Common Stock, par value $0.0001 per share | ||
| Trading Symbol | ALUR | ||
| Warrants to purchase 0.056818 shares of Common Stock for $202.50 per share | |||
| Document Information [Line Items] | |||
| Title of 12(b) Security | Warrants to purchase 0.056818 shares of Common Stock for $202.50 per share | ||
| Trading Symbol | ALUR WS |