Basis of Presentation (Policies)	6 Months Ended
Basis of Presentation (Policies)	Nov. 30, 2022
Accounting Policies [Abstract]
Principles of consolidation	Principles of consolidation The accompanying condensed consolidated interim financial statements (referred to as the “Financial Statements” herein) include the accounts of Scholastic Corporation (the “Corporation”) and all wholly-owned and majority-owned subsidiaries (collectively, “Scholastic” or the “Company”). Intercompany transactions are eliminated in consolidation. The Company’s fiscal year is not a calendar year. Accordingly, references in this document to fiscal 2023 relate to the twelve-month period ending May 31, 2023.
Noncontrolling Interest	Noncontrolling Interest The Company owns a 95.0% majority ownership interest in Make Believe Ideas Limited ("MBI"), a UK-based children's book publishing company. The founder and chief executive officer of MBI retains a 5.0% noncontrolling ownership interest in MBI. The Company fully consolidated MBI as of the acquisition date, and the 5.0% noncontrolling interest is classified within stockholder's equity.
Interim Financial Statements	Interim Financial Statements The accompanying Financial Statements have been prepared in accordance with U.S. generally accepted accounting principles (“U.S. GAAP”) and Article 10 of Regulation S-X of the U.S. Securities and Exchange Commission (“SEC”) for interim financial information, and should be read in conjunction with the Company’s Annual Report on Form 10-K for the fiscal year ended May 31, 2022. The Financial Statements presented in this Quarterly Report on Form 10-Q are unaudited; however, in the opinion of management, the Financial Statements reflect all adjustments, consisting solely of normal, recurring adjustments, necessary for the fair presentation of the Financial Statements for the periods presented.
Seasonality	Seasonality The Company’s Children’s Book Publishing and Distribution school-based book club and book fair channels and most of its Education Solutions businesses operate on a school-year basis; therefore, the Company’s business is highly seasonal. As a result, the Company’s revenues in the first and third quarters of the fiscal year generally are lower than its revenues in the other two fiscal quarters. Typically, school-based channels and magazine revenues are minimal in the first quarter of the fiscal year as schools are not in session. Education channel revenues are generally higher in the fourth quarter. Trade sales can vary throughout the year due to varying release dates of published titles.
Use of estimates	Use of estimates The preparation of these Financial Statements involves the use of estimates and assumptions by management, which affects the amounts reported in the Financial Statements and accompanying notes. The Company bases its estimates on historical experience, current business factors, and various other assumptions believed to be reasonable under the circumstances, all of which are necessary, in order to form a basis for determining the carrying values of certain assets and liabilities. Actual results may differ from those estimates and assumptions. On an on-going basis, the Company evaluates the adequacy of its reserves and the estimates used in these calculations, including, but not limited to: •Accounts receivable allowance for credit losses •Pension and postretirement benefit plans •Uncertain tax positions •The timing and amount of future income taxes and related deductions •Inventory reserves •Cost of goods sold from book fair operations during interim periods based on estimated gross profit rates •Sales tax contingencies •Royalty advance reserves and royalty expense accruals •Impairment testing for goodwill, intangible and other long-lived assets and investments •Assets and liabilities acquired in business combinations •Variable consideration related to anticipated returns •Allocation of transaction price to contractual performance obligations
Sale of Long-lived Assets	Sale of Long-lived Assets There were no sales of long-lived assets during the quarter ended November 30, 2022. Refer to Note 4, Asset Write Down and Sale, for details regarding the disposition of the direct sales business in Asia completed during the first quarter of fiscal 2023. During the second quarter of fiscal 2022, the Company sold a facility, which included office and warehouse space, located in Lake Mary, Florida as part of an initiative to rightsize its real estate footprint to reduce occupancy costs. The long-lived assets, which consisted of land, building, building improvements, furniture and fixtures, were included in the Children's Book Publishing and Distribution segment. These assets had a carrying value of $4.2 and were classified as held for sale as of the third quarter of fiscal 2021. The net proceeds from the sale were $10.4 and the Company recognized a gain on sale of $6.2. This amount is included within Gain (loss) on sale of assets and other within the Company's Condensed Consolidated Statements of Operations.
New Accounting Pronouncements	New Accounting Pronouncements There were no new accounting pronouncements issued in the second quarter of fiscal 2023 which would impact the Company. Refer to the Company’s Annual Report on Form 10-K for the fiscal year ended May 31, 2022 for more information on current applicable authoritative guidance and its impact on the Company's financial statements. Current Fiscal Year Adoptions: ASU No. 2021-8 The Company adopted ASU No. 2021-8, "Business Combinations (Topic 805): Accounting for Contract Assets and Contract Liabilities from Contracts with Customers" (ASU 2021-8), in the beginning of the second quarter of fiscal 2023. The updates in this guidance seek to improve the accounting for acquired revenue contracts with customers in a business combination by addressing diversity in practice and inconsistency related to the following: 1. Recognition of an acquired contract liability and 2. Payment terms and their effect on subsequent revenue recognized by the acquirer. The amendments in ASU 2021-8 improve comparability for both the recognition and measurement of acquired revenue contracts with customers at the date of and after a business combination. The amendments improve comparability by specifying for all acquired revenue contracts regardless of their timing of payment: (1) the circumstances in which the acquirer should recognize contract assets and contract liabilities that are acquired in a business combination and (2) how to measure those contract assets and contract liabilities. The amendments improve comparability after the business combination by providing consistent recognition and measurement guidance for revenue contracts with customers acquired in a business combination and revenue contracts with customers not acquired in a business combination. The Company early adopted ASU 2021-8 and applied the amendments in accounting for the acquisition of Learning Ovations, Inc. during the second quarter of fiscal 2023, which was accounted for as a business combination under the acquisition method of accounting. The adoption of this ASU did not have a material impact to the Company's Condensed Consolidated Financial Statements.