Summary of Significant Accounting Policies	3 Months Ended
Mar. 31, 2026
Accounting Policies [Abstract]
Summary of Significant Accounting Policies	1. Summary of Significant Accounting Policies — The accompanying unaudited condensed consolidated financial statements of American Vanguard Corporation and Subsidiaries (“AVD” or “the Company”) have been prepared in accordance with generally accepted accounting principles in the United States of America (“US GAAP”) for interim financial information and with the instructions to Form 10-Q and Article 10 of Regulation S-X. In the opinion of management, all adjustments (consisting of consolidating adjustments, eliminations, and normal recurring accruals) considered necessary for a fair presentation have been included. Operating results for the three months ended March 31, 2026 are not necessarily indicative of the results that may be expected for the year ending December 31, 2026. The condensed consolidated financial statements and related notes do not include all information and footnotes required by US GAAP for annual reports. This quarterly report should be read in conjunction with the consolidated financial statements included in the Company’s annual report on Form 10-K for the year ended December 31, 2025. Transformation — Transformation expenses on the condensed consolidated statements of operations relate to both the Company’s digital and structural transformation project, and activities associated with manufacturing optimization. The digital transformation effort is intended to ensure that business process owners have access to current and complete data that has been generated through standardized systems and processes. The structural transformation effort is intended to improve operating leverage by applying business analytics to current operations, structures, products and services and identifying process and structural improvements, as well as pricing and go-to-market strategies. The manufacturing optimization is focused on the Company’s US based manufacturing footprint. It includes reduction of activities at the Company's Los Angeles facility including the discontinuation of synthesis processes on that site and building upon the strengths and capabilities of the Axis manufacturing site. Transformation expenses primarily include costs for consulting services, costs in connection with the staffing and execution of the Company’s transformation initiatives, and costs associated with the reduction in force of certain personnel and other costs related to closing down certain activities at the Los Angeles plant. The Los Angeles plant reorganization is expected to be completed by December 31, 2026. For the three months ended March 31, 2026, the plant reorganization expenses amounted to $2,433 and include severance costs of $1,126, waste disposal costs of $902, and miscellaneous other costs of $405. No such plant reorganization costs were incurred during the three months ended March 31, 2025. The Company also impaired certain assets at its Los Angeles plant that became idle due to the reorganization. The related impairment charges are included in asset impairments on the condensed consolidated statements of operations. Recent Adopted Accounting Guidance—In July 2025, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update (“ASU”) 2025-05, “Financial Instruments - Credit Losses,” which simplifies the application of the current expected credit loss model by providing a practical expedient and accounting policy election permitting entities to assume that conditions as of the balance sheet date remain unchanged over the life of the asset when measuring credit losses on current accounts receivable and current contract assets. The Company's adoption of this standard on January 1, 2026 had no impact on its disclosures and no material impact on its results of operations, cash flows and financial condition. Recent Issued Accounting Guidance—In November 2024, the FASB issued ASU No. 2024-03, "Income Statement - Reporting Comprehensive Income - Expense Disaggregation Disclosures (Subtopic 220-40): Disaggregation of Income Statement Expenses", and in January 2025, the FASB issued ASU No. 2025-01, "Income Statement - Reporting Comprehensive Income - Expense Disaggregation Disclosures (Subtopic 220-40): Clarifying the Effective Date". ASU 2024-03 requires public companies to disclose, in interim and reporting periods, additional information about certain expenses in the financial statements. For public business entities, ASU 2024-03, as clarified by ASU 2025-01, is effective for the first annual reporting period beginning after December 15, 2026, and interim reporting periods within annual reporting periods beginning after December 15, 2027. Early adoption of ASU 2024-03 is permitted. The Company is currently evaluating the impact of adopting this ASU on its consolidated financial statements. The Company reviewed all other recently issued accounting pronouncements and concluded that they were either not applicable or not expected to have a significant impact to its condensed consolidated financial statements.

1. Summary of Significant Accounting Policies — The accompanying unaudited condensed consolidated financial statements of American Vanguard Corporation and Subsidiaries (“AVD” or “the Company”) have been prepared in accordance with generally accepted accounting principles in the United States of America (“US GAAP”) for interim financial information and with the instructions to Form 10-Q and Article 10 of Regulation S-X. In the opinion of management, all adjustments (consisting of consolidating adjustments, eliminations, and normal recurring accruals) considered necessary for a fair presentation have been included. Operating results for the three months ended March 31, 2026 are not necessarily indicative of the results that may be expected for the year ending December 31, 2026. The condensed consolidated financial statements and related notes do not include all information and footnotes required by US GAAP for annual reports. This quarterly report should be read in conjunction with the consolidated financial statements included in the Company’s annual report on Form 10-K for the year ended December 31, 2025.

Transformation — Transformation expenses on the condensed consolidated statements of operations relate to both the Company’s digital and structural transformation project, and activities associated with manufacturing optimization. The digital transformation effort is intended to ensure that business process owners have access to current and complete data that has been generated through standardized systems and processes. The structural transformation effort is intended to improve operating leverage by applying business analytics to current operations, structures, products and services and identifying process and structural improvements, as well as pricing and go-to-market strategies. The manufacturing optimization is focused on the Company’s US based manufacturing footprint. It includes reduction of activities at the Company's Los Angeles facility including the discontinuation of synthesis processes on that site and building upon the strengths and capabilities of the Axis manufacturing site. Transformation expenses primarily include costs for consulting services, costs in connection with the staffing and execution of the Company’s transformation initiatives, and costs associated with the reduction in force of certain personnel and other costs related to closing down certain activities at the Los Angeles plant. The Los Angeles plant reorganization is expected to be completed by December 31, 2026. For the three months ended March 31, 2026, the plant reorganization expenses amounted to $2,433 and include severance costs of $1,126, waste disposal costs of $902, and miscellaneous other costs of $405. No such plant reorganization costs were incurred during the three months ended March 31, 2025. The Company also impaired certain assets at its Los Angeles plant that became idle due to the reorganization. The related impairment charges are included in asset impairments on the condensed consolidated statements of operations.

Recent Adopted Accounting Guidance—In July 2025, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update (“ASU”) 2025-05, “Financial Instruments - Credit Losses,” which simplifies the application of the current expected credit loss model by providing a practical expedient and accounting policy election permitting entities to assume that conditions as of the balance sheet date remain unchanged over the life of the asset when measuring credit losses on current accounts receivable and current contract assets. The Company's adoption of this standard on January 1, 2026 had no impact on its disclosures and no material impact on its results of operations, cash flows and financial condition.

Recent Issued Accounting Guidance—In November 2024, the FASB issued ASU No. 2024-03, "Income Statement - Reporting Comprehensive Income - Expense Disaggregation Disclosures (Subtopic 220-40): Disaggregation of Income Statement Expenses", and in January 2025, the FASB issued ASU No. 2025-01, "Income Statement - Reporting Comprehensive Income - Expense Disaggregation Disclosures (Subtopic 220-40): Clarifying the Effective Date". ASU 2024-03 requires public companies to disclose, in interim and reporting periods, additional information about certain expenses in the financial statements. For public business entities, ASU 2024-03, as clarified by ASU 2025-01, is effective for the first annual reporting period beginning after December 15, 2026, and interim reporting periods within annual reporting periods beginning after December 15, 2027. Early adoption of ASU 2024-03 is permitted. The Company is currently evaluating the impact of adopting this ASU on its consolidated financial statements.

The Company reviewed all other recently issued accounting pronouncements and concluded that they were either not applicable or not expected to have a significant impact to its condensed consolidated financial statements.