Recently Issued Accounting Standards (Policies)	6 Months Ended
Jun. 30, 2026
Accounting Policies [Abstract]
Basis of Presentation	Basis of Presentation The accompanying condensed consolidated financial statements have been prepared by Stoneridge, Inc. (the “Company”) without audit, pursuant to the rules and regulations of the Securities and Exchange Commission (the “SEC”). The information furnished in the condensed consolidated financial statements includes normal recurring adjustments and reflects all adjustments, which are, in the opinion of management, necessary for a fair presentation of such financial statements. Certain information and footnote disclosures normally included in financial statements prepared in accordance with U.S. generally accepted accounting principles (“U.S. GAAP”) have been condensed or omitted pursuant to the SEC’s rules and regulations. The results of operations for the three and six months ended June 30, 2026 are not necessarily indicative of the results to be expected for the full year. These unaudited condensed consolidated financial statements should be read in conjunction with the audited consolidated financial statements and the notes thereto included in the Company’s 2025 Form 10-K.
Reclassifications	Reclassifications Certain prior period amounts have been reclassified to conform to their 2026 presentation in the condensed consolidated financial statements.
Recently Adopted Accounting Standards and Accounting Standards Not Yet Adopted	Recently Adopted Accounting Standards In July 2025, the FASB issued ASU 2025-05, "Financial Instruments—Credit Losses (Topic 326): Measurement of Credit Losses for Accounts Receivable and Contract Assets," which allows entities to use a simplified approach when estimating credit losses for current accounts receivable and contract assets arising from revenue transactions. The standard update permits consideration of collections after the balance sheet date when estimating expected credit losses, and allows consideration of subsequent collections when estimating credit losses, reducing documentation burden. This standard is effective for annual and interim periods within annual reporting periods beginning after December 15, 2025. The Company adopted ASU 2025-05 in the first quarter of 2026. The adoption of this guidance did not have a significant impact on the Company’s financial statements. Accounting Standards Not Yet Adopted In November 2024, the FASB issued ASU 2024-03, “Income Statement – Reporting Comprehensive Income – Expense Disaggregation Disclosures,” which requires companies to disclose certain costs and expenses within the notes to the financial statements. This standard is effective for fiscal years beginning after December 15, 2026, and interim periods within fiscal years beginning after December 15, 2027, with early adoption permitted. We are currently evaluating the impact on our consolidated financial statement disclosures. In September 2025, the FASB issued ASU 2025-06, "Intangibles—Goodwill and Other—Internal-Use Software (Subtopic 350-40): Targeted Improvements to the Accounting for Internal-Use Software," which modernizes guidance on internal-use software costs to reflect current development practices and improve operability. This standard eliminates the project stages model and replaces it with a principles based recognition threshold. This standard also creates new capitalization criteria that clarifies capitalization when funding is authorized by management and is probable to be completed and used. This standard is effective for annual and interim periods within annual reporting periods beginning after December 15, 2027. We are currently evaluating the impact on our consolidated financial statements and disclosures. In November 2025, the FASB issued ASU 2025-09, "Derivatives and Hedging (Topic 815): Hedge Accounting Improvements," to better align hedge accounting with an entity's risk management activities and to address issues arising from reference rate reform. The update provides greater flexibility in designating hedging relationships and reduces the risk of hedge dedesignation due to minor changes in hedged items. The new guidance will be applied prospectively and is effective for fiscal years beginning after December 15, 2026, and interim periods within those annual reporting periods, with the option to apply retrospectively. Early adoption is permitted. We are currently evaluating the impact on our consolidated financial statements and disclosures. In December 2025, the FASB issued ASU 2025-10, "Government Grants (Topic 832): Accounting for Government Grants Received by Business Entities," which provides explicit guidance on the accounting for government grants received by business entities. The new guidance will be applied prospectively and is effective for fiscal years beginning after December 15, 2028, and interim periods within those annual reporting periods, with the option to apply retrospectively. Early adoption is permitted. We are currently evaluating the impact on our consolidated financial statements and disclosures. In December 2025, the FASB issued ASU 2025-11, "Interim Reporting (Topic 270): Narrow-Scope Improvements," which provides clarifications intended to improve the consistency and usability of interim disclosure requirements and the applicability to Topic 270. The amendments also provide additional guidance for reporting material events occurring after the most recent annual period. The new guidance will be applied prospectively and is effective for fiscal years beginning after December 15, 2027, and interim periods within those annual reporting periods, with the option to apply retrospectively. Early adoption is permitted. We are currently evaluating the impact on our consolidated financial statements and disclosures. In December 2025, the FASB issued ASU 2025-12, "Codification Improvements," which addresses changes to the Codification that clarify, correct and improve the Codification making it easier to understand and apply. The new guidance will be applied prospectively and is effective for fiscal years beginning after December 15, 2026, and interim periods within those annual reporting periods, with the option to apply retrospectively. Early adoption is permitted. We are currently evaluating the impact on our consolidated financial statements and disclosures.

Recently Issued Accounting Standards (Policies)

6 Months Ended

Jun. 30, 2026

The accompanying condensed consolidated financial statements have been prepared by Stoneridge, Inc. (the “Company”) without audit, pursuant to the rules and regulations of the Securities and Exchange Commission (the “SEC”). The information furnished in the condensed consolidated financial statements includes normal recurring adjustments and reflects all adjustments, which are, in the opinion of management, necessary for a fair presentation of such financial statements. Certain information and footnote disclosures normally included in financial statements prepared in accordance with U.S. generally accepted accounting principles (“U.S. GAAP”) have been condensed or omitted pursuant to the SEC’s rules and regulations. The results of operations for the three and six months ended June 30, 2026 are not necessarily indicative of the results to be expected for the full year. These unaudited condensed consolidated financial statements should be read in conjunction with the audited consolidated financial statements and the notes thereto included in the Company’s 2025 Form 10-K.

Reclassifications

Certain prior period amounts have been reclassified to conform to their 2026 presentation in the condensed consolidated financial statements.

Recently Adopted Accounting Standards and Accounting Standards Not Yet Adopted

Recently Adopted Accounting Standards

In July 2025, the FASB issued ASU 2025-05, "Financial Instruments—Credit Losses (Topic 326): Measurement of Credit Losses for Accounts Receivable and Contract Assets," which allows entities to use a simplified approach when estimating credit losses for current accounts receivable and contract assets arising from revenue transactions. The standard update permits consideration of collections after the balance sheet date when estimating expected credit losses, and allows consideration of subsequent collections when estimating credit losses, reducing documentation burden. This standard is effective for annual and interim periods within annual reporting periods beginning after December 15, 2025. The Company adopted ASU 2025-05 in the first quarter of 2026. The adoption of this guidance did not have a significant impact on the Company’s financial statements.

Accounting Standards Not Yet Adopted

In November 2024, the FASB issued ASU 2024-03, “Income Statement – Reporting Comprehensive Income – Expense Disaggregation Disclosures,” which requires companies to disclose certain costs and expenses within the notes to the financial statements. This standard is effective for fiscal years beginning after December 15, 2026, and interim periods within fiscal years beginning after December 15, 2027, with early adoption permitted. We are currently evaluating the impact on our consolidated financial statement disclosures.

In September 2025, the FASB issued ASU 2025-06, "Intangibles—Goodwill and Other—Internal-Use Software (Subtopic 350-40): Targeted Improvements to the Accounting for Internal-Use Software," which modernizes guidance on internal-use software costs to reflect current development practices and improve operability. This standard eliminates the project stages model and replaces it with a principles based recognition threshold. This standard also creates new capitalization criteria that clarifies capitalization when funding is authorized by management and is probable to be completed and used. This standard is effective for annual and interim periods within annual reporting periods beginning after December 15, 2027. We are currently evaluating the impact on our consolidated financial statements and disclosures.

In November 2025, the FASB issued ASU 2025-09, "Derivatives and Hedging (Topic 815): Hedge Accounting Improvements," to better align hedge accounting with an entity's risk management activities and to address issues arising from reference rate reform. The update provides greater flexibility in designating hedging relationships and reduces the risk of hedge dedesignation due to minor changes in hedged items. The new guidance will be applied prospectively and is effective for fiscal years beginning after December 15, 2026, and interim periods within those annual reporting periods, with the option to apply retrospectively. Early adoption is permitted. We are currently evaluating the impact on our consolidated financial statements and disclosures.

In December 2025, the FASB issued ASU 2025-10, "Government Grants (Topic 832): Accounting for Government Grants Received by Business Entities," which provides explicit guidance on the accounting for government grants received by business entities. The new guidance will be applied prospectively and is effective for fiscal years beginning after December 15, 2028, and interim periods within those annual reporting periods, with the option to apply retrospectively. Early adoption is permitted. We are currently evaluating the impact on our consolidated financial statements and disclosures.

In December 2025, the FASB issued ASU 2025-11, "Interim Reporting (Topic 270): Narrow-Scope Improvements," which provides clarifications intended to improve the consistency and usability of interim disclosure requirements and the applicability to Topic 270. The amendments also provide additional guidance for reporting material events occurring after the most recent annual period. The new guidance will be applied prospectively and is effective for fiscal years beginning after December 15, 2027, and interim periods within those annual reporting periods, with the option to apply retrospectively. Early adoption is permitted. We are currently evaluating the impact on our consolidated financial statements and disclosures.

In December 2025, the FASB issued ASU 2025-12, "Codification Improvements," which addresses changes to the Codification that clarify, correct and improve the Codification making it easier to understand and apply. The new guidance will be applied prospectively and is effective for fiscal years beginning after December 15, 2026, and interim periods within those annual reporting periods, with the option to apply retrospectively. Early adoption is permitted. We are currently evaluating the impact on our consolidated financial statements and disclosures.