Basis of Presentation	6 Months Ended
Jun. 30, 2026
Organization, Consolidation and Presentation of Financial Statements [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. On January 30, 2026, the Company completed the sale of its Control Devices business segment. The Company determined that the disposal of the Control Devices segment represented a strategic shift that has a major effect on the Company's operations and financial results. Accordingly, the Company has applied the provisions of ASC Topic 205-20, Presentation of Financial Statements — Discontinued Operations, and has retrospectively presented the financial results of the Control Devices segment as discontinued operations in the accompanying condensed consolidated financial statements for all periods presented. The assets and liabilities, results of operations, and cash flows of the Control Devices segment have been segregated from those of continuing operations in the condensed consolidated balance sheets, condensed consolidated statements of operations, and condensed consolidated statements of cash flows, respectively, for all periods presented. Unless otherwise noted, the disclosures in these notes to the unaudited condensed consolidated financial statements relate solely to the Company's continuing operations. See Note 3 — Discontinued Operations for further information. Prior to the sale of the Control Devices segment, the Company reported three reportable segments: Electronics, Control Devices, and Stoneridge Brazil. Following the completion of the sale on January 30, 2026, the Control Devices segment is no longer a reportable segment of the Company. The Company now operates in two reportable segments: Electronics and Stoneridge Brazil. In connection with the retrospective presentation of Control Devices as discontinued operations, prior-period segment information has been recast to conform to the current period presentation in accordance with ASC Topic 280, Segment Reporting. See Note 14 — Segment Reporting for further information. Reclassifications Certain prior period amounts have been reclassified to conform to their 2026 presentation in the condensed consolidated financial statements.

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.

On January 30, 2026, the Company completed the sale of its Control Devices business segment. The Company determined that the disposal of the Control Devices segment represented a strategic shift that has a major effect on the Company's operations and financial results. Accordingly, the Company has applied the provisions of ASC Topic 205-20, Presentation of Financial Statements — Discontinued Operations, and has retrospectively presented the financial results of the Control Devices segment as discontinued operations in the accompanying condensed consolidated financial statements for all periods presented. The assets and liabilities, results of operations, and cash flows of the Control Devices segment have been segregated from those of continuing operations in the condensed consolidated balance sheets, condensed consolidated statements of operations, and condensed consolidated statements of cash flows, respectively, for all periods presented. Unless otherwise noted, the disclosures in these notes to the unaudited condensed consolidated financial statements relate solely to the Company's continuing operations. See Note 3 — Discontinued Operations for further information.

Prior to the sale of the Control Devices segment, the Company reported three reportable segments: Electronics, Control Devices, and Stoneridge Brazil. Following the completion of the sale on January 30, 2026, the Control Devices segment is no longer a reportable segment of the Company. The Company now operates in two reportable segments: Electronics and Stoneridge Brazil. In connection with the retrospective presentation of Control Devices as discontinued operations, prior-period segment information has been recast to conform to the current period presentation in accordance with ASC Topic 280, Segment Reporting. See Note 14 — Segment Reporting for further information.