Cover Page - USD ($) $ in Millions |
12 Months Ended | ||
|---|---|---|---|
Dec. 31, 2025 |
Mar. 02, 2026 |
Jun. 30, 2025 |
|
| Document Information [Line Items] | |||
| Entity Registrant Name | Advantage Solutions Inc. | ||
| Entity Central Index Key | 0001776661 | ||
| Amendment Flag | false | ||
| Current Fiscal Year End Date | --12-31 | ||
| Document Type | 10-K | ||
| Document Period End Date | Dec. 31, 2025 | ||
| Document Fiscal Period Focus | FY | ||
| Document Fiscal Year Focus | 2025 | ||
| Document Annual Report | true | ||
| Document Transition Report | false | ||
| Entity Current Reporting Status | Yes | ||
| Entity Filer Category | Accelerated Filer | ||
| Entity Small Business | false | ||
| Entity Shell Company | false | ||
| Entity Emerging Growth Company | false | ||
| Entity File Number | 001-38990 | ||
| Entity Interactive Data Current | Yes | ||
| Entity Incorporation State Country Code | DE | ||
| Entity Public Float | $ 129 | ||
| Entity Well Known Seasoned Issuer | No | ||
| Entity Voluntary Filers | No | ||
| Entity Common Stock, Shares Outstanding | 327,507,690 | ||
| Entity Tax Identification Number | 83-4629508 | ||
| Title of 12(b) Security | Class A common stock, $0.0001 par value per share | ||
| Trading Symbol | ADV | ||
| Security Exchange Name | NASDAQ | ||
| Entity Address, Address Line One | 7676 Forsyth Boulevard | ||
| Entity Address, Address Line Two | Fifth Floor | ||
| Entity Address, City or Town | St. Louis | ||
| Entity Address, State or Province | MO | ||
| Entity Address, Postal Zip Code | 63105 | ||
| City Area Code | 314 | ||
| Local Phone Number | 655-9333 | ||
| ICFR Auditor Attestation Flag | true | ||
| Document Financial Statement Error Correction [Flag] | false | ||
| Auditor Firm ID | 238 | ||
| Auditor Name | PricewaterhouseCoopers LLP | ||
| Auditor Location | Irvine, California | ||
| Documents Incorporated by Reference | DOCUMENTS INCORPORATED BY REFERENCE Portions of the registrant’s Definitive Proxy Statement for the 2026 Annual Meeting of Stockholders, which will be filed with the Securities and Exchange Commission within 120 days after the end of the registrant’s fiscal year ended December 31, 2025, are incorporated by reference in Part III of this report to the extent stated. |
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| Auditor Opinion [Text Block] | Opinions on the Financial Statements and Internal Control over Financial Reporting We have audited the accompanying consolidated balance sheets of Advantage Solutions Inc. and its subsidiaries (the "Company") as of December 31, 2025 and 2024, and the related consolidated statements of operations and comprehensive loss, of stockholders’ equity and of cash flows for each of the three years in the period ended December 31, 2025, including the related notes and financial statement schedule listed in the accompanying index (collectively referred to as the "consolidated financial statements"). We also have audited the Company's internal control over financial reporting as of December 31, 2025, based on criteria established in Internal Control - Integrated Framework (2013) issued by the Committee of Sponsoring Organizations of the Treadway Commission (COSO). In our opinion, the consolidated financial statements referred to above 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. Also in our opinion, the Company maintained, in all material respects, effective internal control over financial reporting as of December 31, 2025, based on criteria established in Internal Control - Integrated Framework (2013) issued by the COSO. |