Basis of Presentation (Policies)	6 Months Ended
Basis of Presentation (Policies)	Oct. 31, 2021
Basis of Presentation [Abstract]
Basis of Presentation	Throughout this report, when we refer to “Wiley,” the “Company,” “we,” “our,” or “us,” we are referring to John Wiley & Sons, Inc. and all our subsidiaries, except where the context indicates otherwise. Our Unaudited Condensed Consolidated Financial Statements include all the accounts of the Company and our subsidiaries. We have eliminated all intercompany transactions and balances in consolidation. In the opinion of management, the accompanying Unaudited Condensed Consolidated Financial Statements contain all adjustments, consisting only of normal recurring adjustments, necessary to present fairly the Unaudited Condensed Consolidated Financial Condition, Results of Operations, Comprehensive Income and Cash Flows for the periods presented. Operating results for the interim period are not necessarily indicative of the results expected for the full year. All amounts are in thousands, except per share amounts, and approximate due to rounding. These financial statements should be read in conjunction with the most recent audited consolidated financial statements included in our Annual Report on Form 10-K for the fiscal year ended April 30, 2021 as filed with the SEC on July 6, 2021 (2021 Form 10-K). Our Unaudited Condensed Consolidated Financial Statements were prepared in accordance with the interim reporting requirements of the SEC. As permitted under those rules, annual footnotes or other financial information that are normally required by US GAAP have been condensed or omitted. The preparation of our Unaudited Condensed Consolidated Financial Statements in conformity with US GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and the disclosure of contingent assets and liabilities at the date of the condensed consolidated financial statements and the reported amounts of revenue and expenses during the reporting period. Actual results could differ from those estimates. Certain prior year amounts have been reclassified to conform to the current year’s presentation. In the fourth quarter of fiscal year 2021, a UK entity acquired in connection with the acquisition of mthree, which was acquired on January 1, 2020, was erroneously dissolved by the Company in accordance with UK Companies Act regulations while still holding assets. This entity, along with its subsidiaries, (the Entity) had various net intercompany receivables owed to them from other Wiley companies of approximately $188.8 million as of April 30, 2021 (approximately $125.2 million as of October 31, 2021), which upon a dissolution technically revert to the British Crown (Crown). Wiley petitioned to Companies House to reinstate the Entity without prejudice, and the restoration process is expected to be successfully completed within fiscal year 2022. As a result of these events, the Company evaluated whether it was appropriate to consolidate the assets, liabilities, and operations of the Entity as part of its consolidated financial statements as of October 31, 2021 and for the period from the Entity being dissolved through October 31, 2021 and also whether there was a liability to the Crown and a related loss associated with the dissolution of the Entity under US GAAP as of October 31, 2021. The Company evaluated the criteria in Financial Accounting Standards Board (FASB) Accounting Standards Codification (ASC) Topic 810, “Consolidations” to determine if consolidating the Entity was appropriate under US GAAP. Based on that evaluation and the administrative nature of the process to restore, the Company concluded that although the Entity was dissolved, we maintained control of the assets of the Entity and, therefore, appropriately consolidated the assets, liabilities and operations of the Entity in our consolidated financial statements as of October 31, 2021 and April 30, 2021.