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Contract liabilities Increase (Decrease) in Contract with Customer, Liability Including Foreign Exchange Amount of increase (decrease) in obligation to transfer good or service to customer for which consideration has been received or is receivable, excluding foreign exchange. 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Schedule of Shipping and Handling Cost Schedule of Shipping and Handling Cost [Table Text Block] Schedule of Shipping and Handling Cost Intangible assets, net Business Combination, Recognized Asset Acquired, Identifiable Intangible Asset, Excluding Goodwill Total debt Long term debt Long-Term Debt Shipping and handling costs Shipping and Handling Expense Shipping and Handling Expense Schedule of Reconciliation of Undiscounted Cash Flows to Operating Lease Liabilities Lessee, Operating Lease, Liability, to be Paid, Maturity [Table Text Block] Total current liabilities Business Combination, Recognized Liability Assumed, Liability, Current Document Period End Date Document Period End Date (Decrease)/ Increase Adjustment to Reconcile Net Income to Cash Provided by (Used in) Operating Activity, Increase (Decrease) in Operating Capital [Abstract] Net cash (used in) provided by investing activities Cash Provided by (Used in) Investing Activity, Including Discontinued Operation Equity Awards Adjustments, Excluding Value Reported in Compensation Table Equity Awards Adjustments, Excluding Value Reported in the Compensation Table [Member] Debt instrument, face amount Debt Instrument, Face Amount Intangible Asset, Finite-Lived & Indefinite Lived [Line Items] Intangible Asset, Finite-Lived & Indefinite Lived [Line Items] Intangible Asset, Finite-Lived & Indefinite Lived 2029 Lessee, Operating Lease, Liability, to be Paid, Year Two Capital Stock and Changes in Capital Accounts Equity [Text Block] Total Charges Incurred to Date Restructuring and Related Cost, Cost Incurred to Date Security Exchange Name Security Exchange Name Less treasury shares at cost (Class A – x and x as of x and x, respectively; Class B – x and x as of x and x, respectively) Treasury Stock, Common, Value Stock option awards granted (in dollars per share) Share-Based Compensation Arrangements by Share-Based Payment Award, Options, Grants in Period, Weighted Average Exercise Price Reclassification out of Accumulated Other Comprehensive Income [Domain] Reclassification out of Accumulated Other Comprehensive Income [Domain] LIFO reserve Inventory, LIFO Reserve Learning Learning Segment [Member] Learning Segment Accumulated other comprehensive loss, net of tax Accumulated Other Comprehensive Income (Loss), Net of Tax Entity Shell Company Entity Shell Company Class B common stock Common Class B [Member] Consolidation Items [Domain] Consolidation Items [Domain] Research Research Segment [Member] A segment of the entity, which provides scientific, technical, medical, and scholarly journals, as well as related content and services, for academic, corporate, and government libraries, learned societies, and individual researchers and other professionals. Short-term portion of operating lease liabilities Less: Current portion Operating Lease, Liability, Current Statement of Comprehensive Income [Abstract] Statement of Comprehensive Income [Abstract] Share Repurchases [Abstract] Stock Transactions, Parenthetical Disclosure [Abstract] Brands and trademarks Trademarks and Trade Names [Member] Reconciliation of Weighted Average Shares Outstanding Earnings Per Share [Text Block] Name Outstanding Recovery, Individual Name (Loss) earnings per share: Earnings Per Share [Abstract] Earnings Per Share [Abstract] Award Timing, How MNPI Considered Award Timing, How MNPI Considered [Text Block] Schedule of Weighted Average Number of Shares Schedule of Weighted Average Number of Shares [Table Text Block] Document Fiscal Period Focus Document Fiscal Period Focus Revenue, Performance Obligation Satisfied over Time [Abstract] Revenue, Performance Obligation Satisfied over Time [Abstract] Peer Group Issuers, Footnote Peer Group Issuers, Footnote [Text Block] Change in book overdrafts Proceeds from (Repayments of) Bank Overdrafts Total liabilities Liabilities Trading Symbol Trading Symbol Additions to technology, property and equipment Payments to Acquire Property, Plant, and Equipment Prior Year End Fair Value of Equity Awards Granted in Any Prior Year that Fail to Meet Applicable Vesting Conditions During Covered Year Prior Year End Fair Value of Equity Awards Granted in Any Prior Year that Fail to Meet Applicable Vesting Conditions During Covered Year [Member] Pension Adjustments Prior Service Cost Pension Adjustments Prior Service Cost [Member] Acquisitions of publication rights and other Proceeds For (Payments From) Acquisition Of Intangible Assets And Other Investing Activities Proceeds For (Payments From) Acquisition Of Intangible Assets And Other Investing Activities Schedule of Consideration Transferred and Purchase Price Allocation of Assets Acquired and Liabilities Assumed Business Combination, Recognized Asset Acquired and Liability Assumed [Table Text Block] Company Selected Measure Name Company Selected Measure Name Amounts reclassified from accumulated other comprehensive loss Reclassification from AOCI, Current Period, Net of Tax, Attributable to Parent Income Tax Disclosure [Abstract] Income Tax Disclosure [Abstract] Margin rate over reference rate used in determining base rate (as a percent) Debt Instrument, Margin on Reference Rate Used in Determining Base Rate Margin rate over reference rate used to calculate the lenders base rate. 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Revenue from Contract with Customer [Abstract] Revenue from Contract with Customer [Abstract] Operating cash flows from operating leases Operating Lease, Payments Award Timing Predetermined Award Timing Predetermined [Flag] Treasury stock Treasury Stock, Common [Member] Intangible Asset, Goodwill and Other [Abstract] Intangible Asset, Goodwill and Other [Abstract] Letters of credit outstanding amount Letters of Credit Outstanding, Amount Period for achievement of performance-based targets (in years) Share-based Compensation Arrangement by Share-based Payment Award, Period for achievement of performance-based targets The period of time during which certain financial performance-based targets must be achieved in order to trigger payment of performance-based restricted stock awards under the terms of the long-term incentive plans, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. 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Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach). Accounts receivable, net Business Combination, Recognized Asset Acquired, Receivable, Current Accumulated Other Comprehensive Income (Loss) [Line Items] Accumulated Other Comprehensive Income (Loss) [Line Items] Exercise Price Award Exercise Price Schedule of Restructuring and Related Costs [Table] Restructuring Cost [Table] Restricted shares issued under stock-based compensation plans Stock Issued During Period, Value, Restricted Stock Award, Net of Forfeitures Investing activities Cash Provided by (Used in) Investing Activity, Including Discontinued Operation [Abstract] Facility related charges, net Facility Closing [Member] Share repurchase program, authorized, amount Share Repurchase Program, Authorized, Amount Segment Reporting [Line Items] Segment Reporting [Line Items] Net loss Business Combination, Pro Forma Information, Pro Forma Income (Loss), after Tax Document Quarterly Report Document Quarterly Report Disposal Groups, Including Discontinued Operations [Table] Disposal Groups, Including Discontinued Operations [Table] Year-over-Year Change in Fair Value of Equity Awards Granted in Prior Years That are Outstanding and Unvested Year-over-Year Change in Fair Value of Equity Awards Granted in Prior Years That are Outstanding and Unvested [Member] Segments [Domain] Segments [Domain] Cash and cash equivalents Cash and cash equivalents Cash and Cash Equivalents, at Carrying Value, Including Discontinued Operations Interest Rate Swap Interest Rate Swap [Member] Balance at beginning of period Balance at end of period Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Including Discontinued Operation Lender Name [Axis] Lender Name [Axis] Debt and Available Credit Facilities Debt Disclosure [Text Block] Repayments of long-term debt Repayments of Long-Term Debt Disposal Group Classification [Domain] Disposal Group Classification [Domain] Unamortized debt issuance costs Debt Issuance Costs, Net Schedule of Restructuring and Related Costs Restructuring and Related Costs [Table Text Block] Awards Close in Time to MNPI Disclosures, Table Awards Close in Time to MNPI Disclosures [Table Text Block] Restructuring liability, beginning of period Restructuring liability, end of period Restructuring Reserve Business Combination [Table] Business Combination [Table] Acquisition and Divestitures Mergers, Acquisitions and Dispositions Disclosures [Text Block] Equity Component [Domain] Equity Component [Domain] PEO Actually Paid Compensation Amount PEO Actually Paid Compensation Amount Business Combination, Asset Acquisition, Transaction between Entities under Common Control, and Joint Venture Formation [Abstract] Total costs and expenses Costs and Expenses Adoption Date Trading Arrangement Adoption Date Consideration Disposal Group, Including Discontinued Operation, Consideration Remaining performance obligations excluding sales return reserve Revenue Excluding Sales Return Reserve, Remaining Performance Obligation, Amount Amount of transaction price allocated to performance obligation that has not been recognized as revenue excluding sales return reserve. 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Net cash used in operating activities Cash Provided by (Used in) Operating Activity, Including Discontinued Operation Common stock class conversions Stockholders' Equity, Other Income Statement [Abstract] Income Statement [Abstract] Shareholders’ equity Equity, Attributable to Parent [Abstract] Document Transition Report Document Transition Report Direct expenses Salary and Wage, Excluding Cost of Good and Service Sold Restructuring Plan [Domain] Restructuring Plan [Domain] Entity Listings [Line Items] Entity Listings [Line Items] Stock Appreciation Rights (SARs) Stock Appreciation Rights (SARs) [Member] Increase in interest rate Debt Instrument, Interest Rate, Increase (Decrease) Operating lease liabilities arising from obtaining ROU assets Operating Lease, Increase Decrease in Lease Liability The increase (decrease) during the reporting period in the aggregate amount of lease liabilities. Diluted loss per share Business Combination, Pro Forma Information, Pro Forma Earnings Per Share, Diluted Schedule of Share-Based Payment Award, Stock Options, Valuation Assumptions Schedule of Share-Based Payment Award, Stock Options, Valuation Assumptions [Table Text Block] Margin rate (as a percent) Debt Instrument, Basis Spread on Variable Rate City Area Code City Area Code Variable Rate [Domain] Variable Rate [Domain] Restricted Stock Restricted Stock [Member] Accumulated other comprehensive loss, net of tax AOCI Attributable to Parent [Member] Sales return reserve recorded in contract liability Sales return reserve recorded in contract liability Contract with Customer, Refund Liability, Current All Individuals All Individuals [Member] Cash paid during the period for: Cash Paid During Period For [Abstract] Cash Paid During Period For [Abstract] Accrued pension liability Liability, Defined Benefit Pension Plan, Noncurrent Name Forgone Recovery, Individual Name Reduction to square footage occupancy (as a percent) Restructuring And Related Cost, Reduction To Occupancy Square Footage, Percent Restructuring And Related Cost, Reduction To Occupancy Square Footage, Percent Entity Listings [Table] Entity Listings [Table] Non-GAAP Measure Description Non-GAAP Measure Description [Text Block] Content and publishing rights Publishing rights Artistic-Related Intangible Assets [Member] Contract with Customer, Contract Asset, Contract Liability, and Receivable [Abstract] Contract with Customer, Contract Asset, Contract Liability, and Receivable [Abstract] Statement [Line Items] Statement [Line Items] Total assets Assets Amortization of intangible assets Amortization of Intangible Assets, Adjusted Amortization of Intangible Assets, Adjusted Operating Lease Liabilities Lessee, Operating Lease, Liability, to be Paid, Fiscal Year Maturity [Abstract] Preferred stock, shares issued (in shares) Preferred Stock, Shares Issued Adjusted Operating Income by segment Adjusted Operating Income (Loss) The net adjusted result for the period of deducting operating expenses from operating revenues. Accounting Standards Update and Change in Accounting Principle [Abstract] Accounting Standards Update and Change in Accounting Principle [Abstract] Amortization of prior service cost Defined Benefit Plan, Amortization of Prior Service Cost (Credit) Operating Segments Operating Segments [Member] Weighted average fair value of options on grant date (in dollars per share) Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Grants in Period, Weighted Average Grant Date Fair Value Interest expense Interest expense Interest Expense, Nonoperating Schedule of Share-Based Compensation Expense Share-Based Payment Arrangement, Expensed and Capitalized, Amount [Table Text Block] Total liabilities Business Combination, Recognized Liability Assumed, Liability Stock-Based Compensation Share-Based Payment Arrangement [Text Block] Other comprehensive (loss) income before reclassifications OCI, before Reclassifications, Net of Tax, Attributable to Parent PEO PEO [Member] Stock-based compensation expense Share-Based Payment Arrangement, Expense Other long-term liabilities Other Liabilities, Noncurrent Goodwill Balance, beginning of period Balance, end of period Goodwill Forgone Recovery due to Violation of Home Country Law, Amount Forgone Recovery due to Violation of Home Country Law, Amount Acquisition Goodwill, Acquired During Period Weighted average fair value of grant (in dollars per share) Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value Retained earnings Retained Earnings [Member] Operating lease liabilities Operating lease liabilities, non-current Noncurrent portion Operating Lease, Liability, Noncurrent Term loan A - Amended and Restated CA Revolving Credit Facility [Member] Cash and cash equivalents Business Combination, Recognized Asset Acquired, Cash and Cash Equivalent Erroneously Awarded Compensation Recovery Erroneously Awarded Compensation Recovery [Table] Unamortized Retirement Costs Accumulated Defined Benefit Plans Adjustment, Net Gain (Loss) Attributable to Parent [Member] Number of Common Stock outstanding, end of year (in shares) Common Stock, Shares, Outstanding Finite assets, accumulated impairment Finite Lived Intangible Assets Impaired Accumulated Impairment Loss Amount of accumulated impairment loss for an asset lacking physical substance and having a projected finite period of benefit. Increase (Decrease) in Stockholders' Equity [Roll Forward] Increase (Decrease) in Stockholders' Equity [Roll Forward] Award Timing Disclosures [Line Items] Foreign Translation & Other Adjustments Restructuring Reserve, Translation and Other Adjustment Foreign Currency Translation Accumulated Foreign Currency Adjustment Attributable to Parent [Member] Payment of debt issuance costs Payments of Debt Issuance Costs Diluted (in dollars per share) Earnings Per Share, Diluted Accumulated Other Comprehensive Income (Loss) [Table] Accumulated Other Comprehensive Income (Loss) [Table] Entity Current Reporting Status Entity Current Reporting Status Net cash provided by (used in) financing activities Cash Provided by (Used in) Financing Activity, Including Discontinued Operation Total Shareholder Return Amount Total Shareholder Return Amount Impact of tax withholding on stock-based compensation and other Share-Based Payment Arrangement, Decrease for Tax Withholding Obligation Net change in operating assets and liabilities Adjustment to Reconcile Net Income to Cash Provided by (Used in) Operating Activity, Increase (Decrease) in Operating Capital Amortization of intangible assets Amortization of intangible assets Intangible Asset, Finite-Lived, Amortization Expense Line of Credit Facility [Line Items] Line of Credit Facility [Line Items] Stockholders' Equity Note [Abstract] Stockholders' Equity Note [Abstract] Schedule of Total Amortization Expense Schedule of Amortization Expense [Table Text Block] Schedule of Amortization Expense Syndicate Bank Group led by Bank of America Syndicate Bank Group [Member] The joint lead arrangers with which the Company maintains a credit facility. Schedule of Unaudited Pro Forma Financial Information Business Combination, Pro Forma Information [Table Text Block] Adjustments to reconcile net (loss) income to net cash used in operating activities: Adjustment to Reconcile Net Income to Cash Provided by (Used in) Operating Activity [Abstract] Total assets Business Combination, Recognized Asset Acquired, Asset Preliminary Estimated Fair Value Intangible Asset, Finite-Lived, Acquired Share-based Payment Arrangement [Abstract] Share-Based Payment Arrangement [Abstract] Financing activities Cash Provided by (Used in) Financing Activity, Including Discontinued Operation [Abstract] Revenue, net Total Revenue Revenue Revenue from Contract with Customer, Excluding Assessed Tax Technology, property, and equipment, net Property, Plant, and Equipment, after Accumulated Depreciation, Depletion, and Amortization Line of credit facility, remaining borrowing capacity Line of Credit Facility, Remaining Borrowing Capacity Interest cost Defined Benefit Plan, Interest Cost Share Repurchase Program In 2020 Share Repurchase Program In 2020 [Member] Share Repurchase Program In 2020 Schedule of Activity for Restructuring Liability Schedule of Restructuring Reserve by Type of Cost [Table Text Block] Inventories Inventory Disclosure [Text Block] Intangible Asset, Finite-Lived, Class [Axis] Intangible Asset, Finite-Lived, Class [Axis] Equity Awards Adjustments, Footnote Equity Awards Adjustments, Footnote [Text Block] Goodwill and Intangible Assets Intangible Asset and Goodwill [Text Block] Underlying Securities Award Underlying Securities Amount Revenue Recognition, Contracts with Customers Revenue from Contract with Customer [Text Block] Subsegments [Domain] Subsegments [Domain] Subsegments [Axis] Subsegments [Axis] Weighted-average discount rate Operating Lease, Weighted Average Discount Rate, Percent Schedule of Nonvested Restricted Stock Shares Activity Nonvested Restricted Stock Shares Activity [Table Text Block] Segment Reporting [Table] Segment Reporting [Table] Revenue recognized from beginning contract liability, percentage Contract with Customer, Liability, Revenue Recognized, Percentage Percentage of revenue recognized that was previously included in balance of obligation to transfer good or service to customer for which consideration from customer has been received or is due. Revenue Business Combination, Acquiree's Revenue since Acquisition Date, Actual Schedule of Total Net Lease Costs Lease, Cost [Table Text Block] Accelerated amortization expense Accelerated Amortization Expense Accelerated Amortization Expense Contract liabilities Business Combination, Recognized Liability Assumed, Contract Liabilities, Current Business Combination, Recognized Liability Assumed, Contract Liabilities, Current Commitments and Contingencies Disclosure [Abstract] Commitments and Contingencies Disclosure [Abstract] All Trading Arrangements All Trading Arrangements [Member] Other Performance Measure, Amount Other Performance Measure, Amount Award Timing MNPI Considered Award Timing MNPI Considered [Flag] Operating income Operating Income (Loss) Remaining performance obligation to be recognized Revenue, Remaining Performance Obligation, Amount Current Fiscal Year End Date Current Fiscal Year End Date Earnout Earnout [Member] Earnout Acquisition and integration related costs Acquisition and integration related costs Business Combination, Acquisition And Integration-Related Cost, Expenses Business Combination, Acquisition And Integration-Related Cost, Expenses Non-PEO NEO Average Total Compensation Amount Non-PEO NEO Average Total Compensation Amount Derivative [Line Items] Derivative [Line Items] Shares repurchased (in shares) Stock Repurchased During Period, Shares Activity for Restructuring and Related Charges Liability [Roll Forward] Restructuring Reserve [Roll Forward] Change in Fair Value as of Vesting Date of Prior Year Equity Awards Vested in Covered Year Change in Fair Value as of Vesting Date of Prior Year Equity Awards Vested in Covered Year [Member] Common stock dividend (in dollars per share) Common Stock, Dividends, Per Share, Declared Entity File Number Entity File Number Rule 10b5-1 Arrangement Adopted Rule 10b5-1 Arrangement Adopted [Flag] Service cost Defined Benefit Plan, Service Cost Amount of pretax (losses) gains reclassified from Accumulated other comprehensive loss into Interest expense Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), Reclassification, before Tax Recovery of Erroneously Awarded Compensation Disclosure [Line Items] Common stock, shares issued (in shares) Number of shares, beginning of year (in shares) Number of shares issued, end of period (in shares) Common Stock, Shares, Issued Measure: Measure [Axis] Schedule of ROU Assets and Liabilities Lessee, Operating Lease, Right of Use Assets and Liabilities [Table Text Block] Tabular disclosure of information relating to lessee's right-of-use assets and liabilities. Finished goods Inventory, Finished Goods, Gross Cash paid for amounts included in the measurement of lease liabilities: Cash Flow, Operating Activities, Lessee [Abstract] Consulting costs Consulting Costs [Member] Consulting Costs Treasury stock (in shares) Number of shares held, beginning of year (in shares) Number of shares held, end of period (in shares) Treasury Stock, Common, Shares Accrued royalties Accrued Royalties, Current Total current assets Business Combination, Recognized Asset Acquired, Asset, Current Accumulated Other Comprehensive Loss Comprehensive Income (Loss) Note [Text Block] Equity Components [Axis] Equity Components [Axis] Accounts receivable, net Increase (Decrease) in Accounts Receivable Product and Service [Domain] Product and Service [Domain] Income taxes, net of refunds Income Tax Paid, after Refund Received Accelerated amortization of an intangible asset Accelerated Amortization of Intangible Assets, Adjusted Accelerated Amortization of Intangible Assets, Adjusted Disaggregation of Revenue [Table] Disaggregation of Revenue [Table] Restructuring liability, current Restructuring Reserve, Current Class A common stock Common Class A [Member] Entity Interactive Data Current Entity Interactive Data Current Variable Rate [Axis] Variable Rate [Axis] Net income Business Combination, Acquiree's Earnings (Loss) since Acquisition Date, Actual Deferred income tax liabilities Deferred Income Tax Liabilities, Net Compensation Actually Paid vs. Other Measure Compensation Actually Paid vs. Other Measure [Text Block] Debt issuance costs, line of credit arrangements Debt Issuance Costs, Line of Credit Arrangements, Net Defined contribution savings plans Defined Contribution Plan, Cost Entity Small Business Entity Small Business Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items] Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items] Comprehensive (loss) income Comprehensive (loss) income, net of tax Comprehensive Income (Loss), Net of Tax, Attributable to Parent 2030 Lessee, Operating Lease, Liability, to be Paid, Year Three Termination Date Trading Arrangement Termination Date Impact of tax withholding on stock-based compensation and other (in shares) Share-Based Payment Arrangement, Shares Withheld for Tax Withholding Obligation Weighted-Average Useful Life Intangible Asset, Finite-Lived, Acquired, Weighted-Average Amortization Period Term Loan A Facility Term Loan A Facility [Member] A term loan is a monetary loan that is repaid in regular payments over a set period of time. Term loans usually last between one and ten years, but may last as long as 30 years in some cases. A term loan usually involves an unfixed interest rate that will add additional balance to be repaid. Restructuring reserve, noncurrent Restructuring Reserve, Noncurrent Compensation Actually Paid vs. Total Shareholder Return Compensation Actually Paid vs. Total Shareholder Return [Text Block] MNPI Disclosure Timed for Compensation Value MNPI Disclosure Timed for Compensation Value [Flag] Other accrued liabilities Other Liabilities, Current Other non-current assets Other Assets, Noncurrent Line of Credit Facility, Lender [Domain] Line of Credit Facility, Lender [Domain] Document Type Document Type Businesses acquired in purchase transactions, net of cash acquired Payments to acquire business, net of cash acquired Payments to Acquire Businesses, Net of Cash Acquired Current asset portion Derivative Asset, Current Fair Value as of Grant Date Award Grant Date Fair Value Long term debt, percentage bearing variable interest Long-Term Debt, Percentage Bearing Variable Interest, Amount Exercise price fair market value at the time of grant (in percent) Exercise Price Of Stock Options Granted As Percentage Of Fair Market Value At The Time Of Grant Exercise Price Of Stock Options Granted As Percentage Of Fair Market Value At The Time Of Grant Research Publishing Research Publishing [Member] Revenue by product service. Schedule of Goodwill [Table] Goodwill [Table] Pay vs Performance Disclosure, Table Pay vs Performance [Table Text Block] Remaining amount authorized to be repurchased under the share repurchase program Share Repurchase Program, Remaining Authorized, Amount Arrangement Duration Trading Arrangement Duration Statement of Stockholders' Equity [Abstract] Statement of Stockholders' Equity [Abstract] Borrowings of long-term debt Proceeds from Issuance of Long-Term Debt Local Phone Number Local Phone Number Contract liabilities (included in Other long-term liabilities) Contract with Customer, Liability, Noncurrent Work-in-process Inventory, Work in Process, Gross Consolidation Items [Axis] Consolidation Items [Axis] Entity Address, Postal Zip Code Entity Address, Postal Zip Code Entity Registrant Name Entity Registrant Name Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions and Methodology [Abstract] Share-Based Compensation Arrangement by Share-Based Payment Award, Fair Value Assumptions and Methodology [Abstract] (Loss) income before taxes (Loss) income before taxes Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest Insider Trading Policies and Procedures Not Adopted Insider Trading Policies and Procedures Not Adopted [Text Block] Commitments and contingencies (Note 18) Commitments and Contingencies Changed Peer Group, Footnote Changed Peer Group, Footnote [Text Block] Reclassification out of Accumulated Other Comprehensive Income [Axis] Reclassification out of Accumulated Other Comprehensive Income [Axis] Forgone Recovery due to Expense of Enforcement, Amount Forgone Recovery due to Expense of Enforcement, Amount Executive Category: Executive Category [Axis] Net gain (loss) on sale of businesses and assets Net (gain) loss on sale of businesses and assets Gain (Loss) On Sale Of Business And Impairment For Assets Held For Sale Gain (Loss) On Sale Of Business And Impairment For Assets Held For Sale Other Credit Facilities Other Credit Facilities [Member] Other Credit Facilities Goodwill [Roll Forward] Goodwill [Roll Forward] Transferred at Point in Time Transferred at Point in Time [Member] Costs and expenses Operating Costs and Expenses [Abstract] Liabilities and shareholders' equity: Liabilities and Equity [Abstract] Intangible Asset, Finite-Lived, Class [Domain] Intangible Asset, Finite-Lived, Class [Domain] Inventories, net Inventories, net Inventory, Net Award Type [Domain] Award Type [Domain] Non-PEO NEO Average Compensation Actually Paid Amount Non-PEO NEO Average Compensation Actually Paid Amount 2027 (remaining 9 months) Lessee, Operating Lease, Liability, to be Paid, Remainder of Fiscal Year Expected life of options (years) Share-Based Compensation Arrangement by Share-Based Payment Award, Fair Value Assumptions, Expected Term Purchases of treasury shares (in shares) Treasury Stock, Shares, Acquired Fair value of common stock on grant date (in dollars per share) Share Price Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Table] Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Table] PEO Name PEO Name Interest Rate Swaps Accumulated Gain (Loss), Net, Cash Flow Hedge, Parent [Member] Cash acquired Cash Acquired from Acquisition Net cash (transferred) proceeds related to the sale of businesses and assets Payments For Sale Of Other Assets Investing Activities Payments For Sale Of Other Assets Investing Activities Stock Price or TSR Estimation Method Stock Price or TSR Estimation Method [Text Block] Entity Tax Identification Number Entity Tax Identification Number Assets acquired: Business Combination, Recognized Asset Acquired, Asset [Abstract] Purchases of treasury shares Treasury Stock, Value, Acquired, Cost Method Payments Payments for Restructuring Product Concentration Risk Product Concentration Risk [Member] Entity Incorporation, State or Country Code Entity Incorporation, State or Country Code Base Rate Base Rate [Member] Aggregate Erroneous Compensation Not Yet Determined Aggregate Erroneous Compensation Not Yet Determined [Text Block] Cross Knowledge Cross Knowledge [Member] Cross Knowledge Schedule of Reclassification out of Accumulated Other Comprehensive (Loss) Income Reclassification out of Accumulated Other Comprehensive Income [Table Text Block] Material Terms of Trading Arrangement Material Terms of Trading Arrangement [Text Block] Non-NEOs Non-NEOs [Member] Vesting Date Fair Value of Equity Awards Granted and Vested in Covered Year Vesting Date Fair Value of Equity Awards Granted and Vested in Covered Year [Member] Debt Instrument [Axis] Debt Instrument [Axis] Other long-term liabilities Business Combination, Recognized Liability Assumed, Other Liability, Noncurrent Total cash consideration transferred Payments to Acquire Businesses, Gross Stock-based compensation expense Share-Based Payment Arrangement, Noncash Expense Total net lease cost Lease, Cost Disposal Group Name [Axis] Disposal Group Name [Axis] Schedule of Total Debt Outstanding Schedule of Debt [Table Text Block] Print and Digital Education Publishing, Print and Digital [Member] Revenue by product/service deriving from education publishing. Contract liabilities (included in Other long-term liabilities) Increase Decrease In Contract With Customer Liability Non Current The increase (decrease) during the reporting period in the amount due from customers for the credit sale of goods and services non current. Schedule of Inventory Schedule of Inventory, Current [Table Text Block] Operating Leases Lessee, Operating Leases [Text Block] Basic (in dollars per share) Earnings Per Share, Basic Equity, Class of Treasury Stock [Line Items] Equity, Class of Treasury Stock [Line Items] Paper and other materials Inventory, Raw Materials, Gross Purchases of treasury shares Payments for Repurchase of Common Stock Contract liabilities Contract liabilities Contract with Customer, Liability, Current Total current assets Assets, Current Statistical Measurement [Axis] Statistical Measurement [Axis] Insider Trading Arrangements [Line Items] Long-term debt Total long-term debt, less current portion Long-Term Debt, Excluding Current Maturities Amount of pretax gains recognized in Other comprehensive (loss) income Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), before Reclassification and Tax Award Type [Axis] Award Type [Axis] Short-term lease cost Short-Term Lease, Cost Named Executive Officers, Footnote Named Executive Officers, Footnote [Text Block] Accounts receivable, net of allowance for credit losses of $xx million and $xx million, respectively Accounts receivable, net Accounts Receivable, after Allowance for Credit Loss, Current Schedule of Shares Repurchased Class of Treasury Stock [Table Text Block] Retained earnings Retained Earnings (Accumulated Deficit) Schedule of Intangible Assets, Net Schedule of Intangible Assets [Table Text Block] Tabular disclosure of the carrying value of intangible assets, excluding goodwill, in total and by major class. A major class is composed of intangible assets that can be grouped together because they are similar, either by their nature or by their use in the operations of the company. Restructuring and Related Activities [Abstract] Restructuring and Related Activities [Abstract] Product and Service [Axis] Product and Service [Axis] Unrealized gain on interest rate swaps, net of tax expense of $(203) and $(706), respectively Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), after Reclassification and Tax, Parent Aggregate Change in Present Value of Accumulated Benefit for All Pension Plans Reported in Summary Compensation Table Aggregate Change in Present Value of Accumulated Benefit for All Pension Plans Reported in Summary Compensation Table [Member] Awards Close in Time to MNPI Disclosures Awards Close in Time to MNPI Disclosures [Table] Common stock Common Stock [Member] Expected volatility Share-Based Compensation Arrangement by Share-Based Payment Award, Fair Value Assumptions, Expected Volatility Rate Contingent consideration Business Combination, Contingent Consideration, Liability Reclassification out of Accumulated Other Comprehensive Income [Table] Reclassification out of Accumulated Other Comprehensive Income [Table] Severance and termination benefits Employee Severance [Member] Operating lease cost Operating Lease, Cost Employee retirement plan expense Other Postretirement Benefits Cost (Reversal of Cost) Compensation Actually Paid vs. Company Selected Measure Compensation Actually Paid vs. Company Selected Measure [Text Block] Cover [Abstract] Cover [Abstract] Applicable margin (as a percent) Debt Instrument, Applicable Margin Percentage points added to compute the variable rate on the debt instrument. Expected dividend yield Share-Based Compensation Arrangement by Share-Based Payment Award, Fair Value Assumptions, Expected Dividend Rate Accrued employment costs Business Combination, Recognized Liability Assumed, Employee-Related Liabilities, Current Business Combination, Recognized Liability Assumed, Employee-Related Liabilities, Current Debt covenant, maximum lender credit exposure Debt Covenant, Maximum Lender Credit Exposure Debt Covenant, Maximum Lender Credit Exposure Derivative Contract [Domain] Derivative Contract [Domain] Impairment of operating lease ROU assets and technology, property, and equipment Impairment of Operating Lease Right-of-use Assets and Property and Equipment [Member] Operating lease right-of-use asset impairment of a contract associated with exit from or disposal of property and equipment or restructurings pursuant to a plan. Revenue percentage Concentration Risk, Percentage Concentration Risk Benchmark [Axis] Concentration Risk Benchmark [Axis] Foreign Translation Adjustment Goodwill, Foreign Currency Translation, Gain (Loss) Schedule of Other Supplemental Information for Operating Leases Lessee, Operating Lease, Other Supplemental Information [Table Text Block] Tabular disclosure of other supplemental information related to operating leases of lessee. Equity Awards Adjustments Equity Awards Adjustments [Member] Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items] Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items] Non-current liability portion Derivative Liability, Noncurrent Total liabilities and shareholders' equity Liabilities and Equity Variable lease cost Variable Lease, Cost Stock Option Share-Based Payment Arrangement, Option [Member] Segments [Axis] Segments [Axis] Emerald Holding Emerald Holding [Member] Emerald Holding Additional 402(v) Disclosure Additional 402(v) Disclosure [Text Block] Inventory Disclosure [Abstract] Inventory Disclosure [Abstract] Tabular List, Table Tabular List [Table Text Block] Vesting [Axis] Vesting [Axis] Noncash or Part Noncash Divestiture, Name [Domain] Noncash or Part Noncash Divestiture, Name [Domain] Additional paid-in-capital Additional Paid in Capital Intangible assets with definite lives, net [Abstract] Intangible Asset, Finite-Lived, after Accumulated Amortization [Abstract] Other expense, net Other expense, net Other Nonoperating Income (Expense) Changes in Common Stock in Treasury [Roll Forward] Changes in Common Stock in Treasury [Roll Forward] Changes in Common Stock in Treasury [Abstract] Changes in Common Stock [Roll Forward] Changes in Common Stock [Roll Forward] Changes in Common Stock [Abstract] Indemnification asset, amount Business Combination, Indemnification Asset, Amount Business Combination, Indemnification Asset, Amount Name Awards Close in Time to MNPI Disclosures, Individual Name Restructuring and related charges Total Restructuring and Related Charges Restructuring and related charges Restructuring and Related (Credits) Charges Restructuring charges for research and professional development, net of related reversal of severance provisions previously recorded by the Company. Year-end Fair Value of Equity Awards Granted in Covered Year that are Outstanding and Unvested Year-end Fair Value of Equity Awards Granted in Covered Year that are Outstanding and Unvested [Member] Wiley Edge Wiley Edge [Member] Wiley Edge Restricted cash included in Prepaid expenses and other current assets Restricted cash included in Prepaid expenses and other current assets Restricted Cash And Cash Equivalents, Including Disposal Group And Discontinued Operations Restricted Cash And Cash Equivalents, Including Disposal Group And Discontinued Operations Preferred stock, shares authorized (in shares) Preferred Stock, Shares Authorized Preferred stock, $1 par value per share: Authorized shares – 2 million, Issued shares - 0 Preferred Stock, Value, Issued Adjustment to Compensation: Adjustment to Compensation [Axis] Schedule of Identifiable Intangible Assets Acquired and Weighted-Average Useful Life Business Combination, Intangible Asset, Acquired, Finite-Lived [Table Text Block] Share Repurchase Program [Axis] Share Repurchase Program [Axis] Daily Secured Overnight Financing Rate (SOFR) Daily Secured Overnight Financing Rate (SOFR) [Member] Daily Secured Overnight Financing Rate (SOFR) Class of Stock [Domain] Class of Stock [Domain] Restructuring Cost and Reserve [Line Items] Restructuring Cost and Reserve [Line Items] Rule 10b5-1 Arrangement Terminated Rule 10b5-1 Arrangement Terminated [Flag] Aggregate Erroneous Compensation Amount Aggregate Erroneous Compensation Amount Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract] Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract] Interest Interest Paid, Excluding Capitalized Interest, Operating Activity Statement of Cash Flows [Abstract] Statement of Cash Flows [Abstract] Global Restructuring Program Global Restructuring Program [Member] Value Creation Program Schedule of Stock by Class Schedule of Stock by Class [Table Text Block] Credit Facility [Axis] Credit Facility [Axis] Restructuring and Related Charges Restructuring and Related Activities Disclosure [Text Block] Aggregate Available Trading Arrangement, Securities Aggregate Available Amount Line of credit facility, increase (decrease), net Line of Credit Facility, Increase (Decrease), Net Discontinued Operations and Disposal Groups [Abstract] Unrealized gain (loss) on interest rate swaps, net of tax (expense) benefit Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), after Reclassification, Tax, Parent Name Measure Name Income Taxes Income Tax Disclosure [Text Block] Accounts payable Accounts Payable, Current Pay vs Performance Disclosure [Line Items] Other noncash charges Other Noncash Income (Expense) Schedule of Derivatives Instruments Statements of Financial Performance and Financial Position, Location Schedule of Derivatives Instruments Statements of Financial Performance and Financial Position, Location [Table Text Block] Pay vs Performance Disclosure Pay vs Performance Disclosure [Table] Consideration transferred Total preliminary consideration transferred Business Combination, Consideration Transferred Additional paid-in capital Additional Paid-in Capital [Member] Entity Filer Category Entity Filer Category Long-term Debt, by Current and Noncurrent [Abstract] Long-Term Debt, by Current and Noncurrent [Abstract] Indefinite-lived Intangible Assets [Axis] Intangible Asset, Indefinite-Lived, Class [Axis] Weighted average assumptions: Share-based Compensation Arrangement by Share-based Payment Award, Weighted Average Assumptions [Abstract] Share-based Compensation Arrangement by Share-based Payment Award, Weighted Average Assumptions [Abstract] Name Trading Arrangement, Individual Name Cash and cash equivalents Cash and Cash Equivalent Average interest rates on total debt outstanding (as a percent) Debt Instrument, Interest Rate During Period Basis of Presentation Basis of Accounting [Text Block] Concentration Risk Benchmark [Domain] Concentration Risk Benchmark [Domain] Company Selected Measure Amount Company Selected Measure Amount Total depreciation and amortization Depreciation, Depletion and Amortization Intangible Asset, Finite-Lived & Indefinite Lived [Table] Intangible Asset, Finite-Lived & Indefinite Lived [Table] Intangible Asset, Finite-Lived & Indefinite Lived Total inventories before estimated sales returns and LIFO reserve Inventory, Gross Secured Overnight Financing Rate (SOFR) Secured Overnight Financing Rate (SOFR) [Member] Inventory value of estimated sales returns Inventory, Reserve for Estimated Sales Returns Amount of inventory reserves for estimated sales returns. Current assets Assets, Current [Abstract] Weighted-average remaining contractual lease term (years) Operating Lease, Weighted Average Remaining Lease Term Revenue Business Combination, Pro Forma Information, Pro Forma Revenue Non-PEO NEO Non-PEO NEO [Member] Entity Address, Address Line One Entity Address, Address Line One (Benefit) provision for income taxes Income Tax Expense (Benefit) Net foreign exchange transaction losses Gain (Loss), Foreign Currency Transaction, before Tax Cost of sales Cost of sales Cost of Product and Service Sold Award Timing Method Award Timing Method [Text Block] Increase (decrease) for the period Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Period Increase (Decrease), Including Exchange Rate Effect and Discontinued Operation Forgone Recovery, Explanation of Impracticability Forgone Recovery, Explanation of Impracticability [Text Block] Deferred income tax liabilities Business Combination, Recognized Liability Assumed, Deferred Tax Liability Amortization of net actuarial loss Defined Benefit Plan, Amortization of Gain (Loss) Recent Accounting Standards Accounting Standards Update and Change in Accounting Principle [Text Block] AOCI Attributable to Parent, Net of Tax [Roll Forward] AOCI Attributable to Parent, Net of Tax [Roll Forward] Share-Based Payment Arrangement, Tranche Three Share-Based Payment Arrangement, Tranche Three [Member] Net (loss) income Net (loss) income Net (loss) income Net Income (Loss) Attributable to Parent Erroneous Compensation Analysis Erroneous Compensation Analysis [Text Block] Statement [Table] Statement [Table] Share-Based Payment Arrangement, Tranche Two Share-Based Payment Arrangement, Tranche Two [Member] Restatement Determination Date: Restatement Determination Date [Axis] Schedule of Changes in Accumulated Other Comprehensive Loss by Component, Net of Tax Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block] Liabilities assumed: Business Combination, Recognized Liability Assumed, Liability [Abstract] Settlement fund Litigation Settlement, Amount Awarded to Other Party Schedule of Contract with Customer, Contract Asset, Contract Liability, and Receivable Contract with Customer, Contract Asset, Contract Liability, and Receivable [Table Text Block] Federal Funds Effective Rate Fed Funds Effective Rate Overnight Index Swap Rate [Member] Product development spending Additions To Product Development Assets The cash outflow for book composition and other product development spending. Reconciliation of Adjusted Operating Income by segment to (Loss) Income before taxes Adjustments [Abstract] Adjustments [Abstract] Pension Benefits Adjustments, Footnote Pension Benefits Adjustments, Footnote [Text Block] Prepaid expenses and other current assets Business Combination, Recognized Asset Acquired, Prepaid Expense and Other Asset, Current Derivative Instruments and Hedging Activities Disclosure [Abstract] Derivative Instruments and Hedging Activities Disclosure [Abstract]