Description of the Company and Basis of Presentation	12 Months Ended
Description of the Company and Basis of Presentation	Dec. 31, 2022
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Description of the Company and Basis of Presentation	Description of the Company and Basis of Presentation Description of the Company OneSpan helps organizations accelerate digital transformations by enabling secure, compliant, and easy customer agreements and transaction experiences. The Company is a global leader in providing high-assurance identity and authentication security as well as enterprise-grade electronic signature (e-signature) solutions for use cases ranging from simple transactions to workflows that are complex or require higher levels of security. The Company’s solutions help its clients ensure the integrity of the people and records associated with digital agreements, transactions, and interactions in industries including banking, financial services, healthcare, and professional services. The Company offers a portfolio of products and services across identity verification, authentication, virtual interactions and transactions, and secure digital storage. OneSpan has operations in Austria, Australia, Belgium, Canada, China, France, Japan, The Netherlands, Singapore, Switzerland, the United Arab Emirates, the United Kingdom (U.K), and the United States (U.S.). Transformation Plan In May 2022, the Company announced a three-year strategic transformation plan that begins on January 1, 2023. The Company expects this transformation plan will enable it to build on its strong solution portfolio and market position, enhance its enterprise go-to-market strategy, accelerate revenue growth, and drive efficiencies to support margin expansion and increased profitability. In conjunction with the strategic transformation plan and to enable a more efficient capital deployment model, effective with the quarter ended June 30, 2022, the Company began reporting under the following two lines of business, which are its reportable operating segments: Digital Agreements and Security Solutions. The Company plans to manage Digital Agreements for accelerated growth and market share gains and Security Solutions for cash flow given its more modest growth profile. For further information regarding the Company’s reportable segments, see Note 3, Segment Information. While the Company’s consolidated results will not be impacted, the Company has recast its segment information during 2022 for comparable presentation. Principles of Consolidation The consolidated financial statements include the accounts of OneSpan Inc. and its wholly owned subsidiaries. Intercompany accounts and transactions have been eliminated in consolidation. Estimates and Assumptions The preparation of financial statements in conformity with U.S. GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenue and expenses during the reporting period. Actual results could differ from those estimates. Foreign Currency Translation and Transactions The financial position and results of the operations of the majority of the Company’s foreign subsidiaries are measured using the local currency as the functional currency. Accordingly, assets and liabilities are translated into U.S. Dollars using current exchange rates as of the balance sheet date. Revenue and expenses are translated at average exchange rates prevailing during the year. Translation adjustments arising from differences in exchange rates are charged or credited to other comprehensive income (loss). Gains or (losses) resulting from foreign currency transactions were $(1.9) million, less than $0.1 million, and less than $0.1 million in 2022, 2021, and 2020, respectively, and are included in "Other income (expense)" in the consolidated statements of operations.