v3.26.3
Cover Page - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2025
Feb. 20, 2026
Jun. 30, 2025
Cover [Abstract]      
Document Type 10-K/A    
Amendment Flag true    
Amendment Description EXPLANATORY NOTE American Vanguard Corporation is filing this Amendment No. 1 (this “Form 10-K/A”) to its Annual Report on Form 10-K for the fiscal year ended December 31, 2025 (the “Original 10-K”), as originally filed with the Securities and Exchange Commission (the “Commission”) on March 16, 2026, for the sole purpose of updating the Report of Independent Registered Public Accounting Firm (the “Auditor’s Report”) within Item 8 of the Original 10-K to: (i) confirm that the Auditor’s Report covers each of the three years in the period ended December 31, 2025 in compliance with Rules 2-02(a)(4) and 8-02 of Regulation S-X whereas the previous Auditor’s Report inadvertently cited each of the two previous years ended December 31, 2025 and; (ii) correct the amount referenced for accrued program costs in the Auditor’s Report from $54.6 million to $52.2 million. This Form 10-K/A includes new certifications, as required by Rule 12b-15 under the Securities Exchange Act of 1934, from our Chief Executive Officer and Chief Financial Officer, dated as of the date of filing of this Form 10-K/A, and a new Consent of Independent Registered Public Accounting Firm, dated as of the date of filing of this Form 10-K/A. Except for the correction described above, this Form 10-K/A does not purport to update any disclosures contained in the annual report. For disclosures subsequent to March 16, 2026, please see the Company’s reports filed with the Commission after that date.    
Document Period End Date Dec. 31, 2025    
Document Fiscal Year Focus 2025    
Document Fiscal Period Focus FY    
Trading Symbol AVD    
Entity Registrant Name AMERICAN VANGUARD CORPORATION    
Entity Central Index Key 0000005981    
Current Fiscal Year End Date --12-31    
Entity Well-known Seasoned Issuer No    
Entity Current Reporting Status Yes    
Entity Interactive Data Current Yes    
Entity Voluntary Filers No    
Entity Filer Category Accelerated Filer    
ICFR Auditor Attestation Flag true    
Document Financial Statement Error Correction [Flag] false    
Entity Small Business false    
Entity Emerging Growth Company false    
Entity Shell Company false    
Title of 12(b) Security Common Stock, $0.10 par value    
Security Exchange Name NYSE    
Entity File Number 001-13795    
Entity Incorporation, State or Country Code DE    
Entity Tax Identification Number 95-2588080    
Entity Address, Address Line One 15440 Laguna Canyon Road    
Entity Address, Address Line Two Suite 100    
Entity Address, City or Town Irvine    
Entity Address, State or Province CA    
Entity Address, Postal Zip Code 92660    
City Area Code 949    
Local Phone Number 260-1200    
Document Annual Report true    
Document Transition Report false    
Entity Common Stock, Shares Outstanding   28,539,562  
Entity Public Float     $ 111.1
Auditor Firm ID 34    
Auditor Name Deloitte & Touche LLP    
Auditor Location Costa Mesa, California    
Auditor Opinion
We have audited the accompanying consolidated balance sheets of American Vanguard Corporation and subsidiaries (the “Company”) as of December 31, 2025 and 2024, the related consolidated statements of operations, comprehensive (loss) income, stockholders’ equity and cash flows, for each of the three years in the period ended December 31, 2025, and the related notes and the schedules listed in the Index at Item 15 (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 three years in the period ended December 31, 2025, in conformity with accounting principles generally accepted in the United States of America.
We have also audited, in accordance with the standards of the Public Company Accounting Oversight Board (United States) (PCAOB), 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 and our report dated March 16, 2026, expressed an unqualified opinion on the Company’s internal control over financial reporting.