Fair Value Disclosures [Abstract] Fair Value, by Balance Sheet Grouping [Table] Fair Value, by Balance Sheet Grouping [Table] Measurement Frequency [Axis] Measurement Frequency [Axis] Measurement Frequency [Domain] Measurement Frequency [Domain] Fair Value, Measurements, Nonrecurring Fair Value, Nonrecurring [Member] Fair Value Hierarchy and NAV [Axis] Fair Value Hierarchy and NAV [Axis] Fair Value, Measurements, Fair Value Hierarchy [Domain] Fair Value Hierarchy and NAV [Domain] Level 3 Fair Value, Inputs, Level 3 [Member] Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] Unfunded commitments related to partnership/joint venture interests Fair Value, Investments, Entities that Calculate Net Asset Value Per Share, Unfunded Commitments Hedge funds redemption period Fair Value, Investments, Entities that Calculate Net Asset Value Per Share, Investment Redemption, Notice Period Hedge funds redemption potential holdback percentage Fair Value, Investments, Entities that Calculate Net Asset Value Per Share, Redemption Restriction, Percentage Assets held for sale Assets Held-for-sale, Long Lived, Fair Value Disclosure Segment Reporting [Abstract] Schedule of Segment Reporting Information, by Segment [Table] Schedule of Segment Reporting Information, by Segment [Table] Product and Service [Axis] Product and Service [Axis] Product and Service [Domain] Product and Service [Domain] Advertising and marketing services Advertising and Marketing [Member] Advertising and Marketing [Member] Circulation Circulation [Member] Circulation [Member] Commercial printing and other Other Revenue [Member] Other Revenue [Member] Consolidation Items [Axis] Consolidation Items [Axis] Consolidation Items [Domain] Consolidation Items [Domain] Operating Segments Operating Segments [Member] Corporate and Other Corporate, Non-Segment [Member] Intersegment Eliminations Intersegment Eliminations [Member] Segments [Axis] Segments [Axis] Segments [Domain] Segments [Domain] Publishing Publishing Segment [Member] Publishing Segment [Member] Marketing Solutions Marketing Solutions [Member] Marketing Solutions [Member] Segment Reporting Information [Line Items] Segment Reporting Information [Line Items] Number of operating segments Number of Operating Segments Total revenues Revenue from Contract with Customer, Excluding Assessed Tax Adjusted EBITDA (non-GAAP basis) Earnings (Loss) Before Interest, Taxes, Depreciation and Amortization, Restructuring Charges, and Other Items Earnings (Loss) Before Interest, Taxes, Depreciation and Amortization, Restructuring Charges, and Other Items Shareholders' Equity and Share-based Payments [Abstract] Shareholders' Equity and Share-based Payments [Abstract] Stockholders Equity Note [Table] Stockholders Equity Note [Table] Stockholders Equity Note [Table] Restatement [Axis] Restatement [Axis] Restatement [Domain] Restatement [Domain] Previously Reported Previously Reported [Member] Business Acquisition [Axis] Business Acquisition [Axis] Business Acquisition, Acquiree [Domain] Business Acquisition, Acquiree [Domain] Legacy Gannett Legacy Gannett [Member] Legacy Gannett [Member] Deferred Compensation Arrangement with Individual, Share-based Payments, by Title of Individual [Axis] Title of Individual [Axis] Title of Individual with Relationship to Entity [Domain] Title of Individual [Domain] Officer Officer [Member] Non-Officer Directors Non-Officer Directors [Member] Non-Officer Directors [Member] Manager Management [Member] 2017 services 2017 services [Member] 2017 services [Member] Share Repurchase Program [Axis] Share Repurchase Program [Axis] Share Repurchase Program [Domain] Share Repurchase Program [Domain] Share Repurchase Program Share Repurchase Program [Member] Share Repurchase Program [Member] 2015 Omnibus Incentive Compensation Plan 2015 Omnibus Incentive Compensation Plan [Member] 2015 Omnibus Incentive Compensation Plan [Member] Plan Name [Axis] Plan Name [Axis] Plan Name [Domain] Plan Name [Domain] 2016 Options 2016 Options [Member] 2016 Options [Member] 2015 Options 2015 Options [Member] 2015 Options [Member] 2014 Options 2014 Options [Member] 2014 Options [Member] Award Type [Axis] Award Type [Axis] Award Type [Domain] Award Type [Domain] Restricted Stock Grants (RSGs) Restricted Stock Grants [Member] Restricted Stock Grants [Member] Stockholders Equity Note [Line Items] Stockholders Equity Note [Line Items] Stockholders Equity Note [Line Items] Concersion of common stock (in dollars per share) Common Stock, Convertible, Conversion Price, Increase Issuance of common stock (in shares) Shares, Issued Sale of common stock (in shares) Sale of Stock, Number of Shares Issued in Transaction Estimated net proceeds Proceeds from Debt, Net of Issuance Costs Stock options granted (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Net of Forfeitures Warrants strike price per share (in dollars per share) Class of Warrant or Right, Exercise Price of Warrants or Rights Warrants, percent of common stock outstanding Class of Warrant or Right, Percent Of Total Common Stock Outstanding Class of Warrant or Right, Percent Of Total Common Stock Outstanding Sale of stock price per share (in dollars per share) Sale of Stock, Price Per Share Stock price (in dollars per share) Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Grant Date Intrinsic Value Aggregate intrinsic value Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period, Intrinsic Value Risk-free interest rate Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Risk Free Interest Rate Dividend yield Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Dividend Rate Expected volatility Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Volatility Rate Expected term Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Term Shares issued (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Shares Issued in Period Settlement liabilities Settlement Liabilities Settlement Liabilities Shares authorized for repurchase (in shares, up to) Stock Repurchase Program, Number of Shares Authorized to be Repurchased Repurchase of common stock (in shares) Stock Repurchased During Period, Shares Option to purchase shares of common stock, price per share (in dollars per share) Share-based Payment Arrangement, Option, Exercise Price Range, Exercisable, Weighted Average Exercise Price Fair value of options granted Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Outstanding, Aggregate Intrinsic Value Share-based compensation cost Share-based Payment Arrangement, Expense Unrecognized compensation cost related to non-vested share-based compensation Share-based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount Weighted average period Share-based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition Number of shares of common stock received for each RSG granted (in shares) Share Based Compensation Arrangement Number Of Shares Of Common Stock That Can Be Issued For Each Restricted Stock Unit Granted Share Based Compensation Arrangement, Number of Shares of Common Stock that can be Issued for Each Restricted Stock Unit Granted Aggregate intrinsic value of unvested Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Aggregate Intrinsic Value, Nonvested Shares registered for issuance (in shares) Stock Repurchase Program, Remaining Number of Shares Authorized to be Repurchased Dividends paid (in dollars per share) Common Stock, Dividends, Per Share, Cash Paid Goodwill and Intangible Assets Disclosure [Abstract] Schedule of Finite-Lived Intangible Assets [Table] Schedule of Finite-Lived Intangible Assets [Table] Reporting Unit [Axis] Reporting Unit [Axis] Reporting Unit [Domain] Reporting Unit [Domain] Newspaper Reporting Unit Newspaper Reporting Unit [Member] Newspaper Reporting Unit [Member] Legacy New Media Unit Legacy New Media Unit [Member] Legacy New Media Unit [Member] Measurement Input Type [Axis] Measurement Input Type [Axis] Measurement Input Type [Domain] Measurement Input Type [Domain] Terminal rate of loss/revenue growth Measurement Input, Long-term Revenue Growth Rate [Member] EBITDA projections as a percent of revenue Measurement Input, Revenue Multiple [Member] Discount rate Measurement Input, Discount Rate [Member] Royalty rate Measurement Input, Royalty Rates [Member] Measurement Input, Royalty Rates [Member] Finite-Lived Intangible Assets by Major Class [Axis] Finite-Lived Intangible Assets by Major Class [Axis] Finite-Lived Intangible Assets, Major Class Name [Domain] Finite-Lived Intangible Assets, Major Class Name [Domain] Advertiser relationships Adviser Relationships [Member] Adviser Relationships [Member] Customer relationships Customer Relationships [Member] Subscriber relationships Subscriber Relationships [Member] Subscriber Relationships [Member] Other intangible assets Other Intangible Assets [Member] Business Acquisition [Axis] Statistical Measurement [Axis] Statistical Measurement [Axis] Statistical Measurement [Domain] Statistical Measurement [Domain] Minimum Minimum [Member] Maximum Maximum [Member] Finite-Lived Intangible Assets [Line Items] Finite-Lived Intangible Assets [Line Items] Weighted average useful life Finite-Lived Intangible Asset, Useful Life Amortization Amortization of Intangible Assets Reporting unit, measurement input Reporting Unit, Measurement Input Reporting Unit, Measurement Input Excess of fair value of reporting unit over carrying value, percent (less than) Reporting Unit, Percentage of Fair Value in Excess of Carrying Amount Goodwill impairment Goodwill, Impairment Loss Impairment charges Asset Impairment Charges Effective tax rate (as a percent) Effective Income Tax Rate Reconciliation, Percent Accounting Policies [Abstract] Description of business and Basis of presentation and consolidation Business Description and Basis of Presentation [Text Block] Use of estimates Use of Estimates, Policy [Policy Text Block] Fiscal year Fiscal Period, Policy [Policy Text Block] Newspaper industry and Advertising and marketing services revenues, and Revenue recognition Revenue from Contract with Customer [Policy Text Block] Reclassifications Reclassification, Policy [Policy Text Block] Segment presentation Segment Reporting, Policy [Policy Text Block] Accounts receivable Accounts Receivable [Policy Text Block] Inventories Inventory, Policy [Policy Text Block] Property, plant, and equipment, software development costs, and depreciation Property, Plant and Equipment, Policy [Policy Text Block] Business combinations Business Combinations Policy [Policy Text Block] Goodwill, intangible assets, and long-lived assets Goodwill and Intangible Assets, Policy [Policy Text Block] Equity investments Equity Method Investments [Policy Text Block] Redeemable Noncontrolling Interest Redeemable Noncontrolling Interest [Policy Text Block] Redeemable Noncontrolling Interest [Policy Text Block] Income taxes Income Tax, Policy [Policy Text Block] Fair value of financial instruments Fair Value of Financial Instruments, Policy [Policy Text Block] Cash, cash equivalents, and restricted cash Cash and Cash Equivalents, Restricted Cash and Cash Equivalents, Policy [Policy Text Block] Deferred financing costs Deferred Charges, Policy [Policy Text Block] Advertising costs Advertising Cost [Policy Text Block] Earnings (loss) per share Earnings Per Share, Policy [Policy Text Block] Stock-based employee compensation Share-based Payment Arrangement [Policy Text Block] Pension and postretirement liabilities Pension and Other Postretirement Plans, Policy [Policy Text Block] Self-insurance liability accruals Self Insurance Policy [Policy Text Block] Self Insurance Policy [Policy Text Block] Concentration of risk Concentration Risk, Credit Risk, Policy [Policy Text Block] Leases Lessee, Leases [Policy Text Block] Loss contingencies Commitments and Contingencies, Policy [Policy Text Block] Foreign currency translation Foreign Currency Transactions and Translations Policy [Policy Text Block] New accounting pronouncement New Accounting Pronouncements, Policy [Policy Text Block] Business Combinations [Abstract] Schedule of Business Acquisitions, by Acquisition [Table] Schedule of Business Acquisitions, by Acquisition [Table] Gannet Co., Inc Gannett Co., Inc [Member] Gannett Co., Inc [Member] Business Acquisition [Line Items] Business Acquisition [Line Items] Total revenues Business Acquisition, Pro Forma Revenue Net loss Business Acquisition, Pro Forma Net Income (Loss) Earnings per share - diluted (in dollars per share) Business Acquisition, Pro Forma Earnings Per Share, Diluted Net income (loss) attributable to Gannett (GAAP basis) Net Income (Loss) Attributable to Parent Income tax expense (benefit) Income Tax Expense (Benefit) Interest expense Interest Expense Loss on early extinguishment of debt Gain (Loss) on Extinguishment of Debt Other non-operating items, net Other Nonoperating Income (Expense) Depreciation and amortization Depreciation, Depletion and Amortization Integration and reorganization costs Restructuring Charges Acquisition costs Business Combination, Acquisition Related Costs Impairment of long-lived assets Asset Impairment And Other Charges Before Tax Asset Impairment And Other Charges Before Tax Goodwill and mastheads impairment Goodwill and Intangible Asset Impairment Net (gain) loss on sale or disposal of assets Gain (Loss) on Disposition of Property Plant Equipment, Excluding Oil and Gas Property and Timber Property Non-cash compensation Non-cash Compensation Non-cash Compensation Other items Other Nonrecurring (Income) Expense Leases [Abstract] 2020 Lessee, Operating Lease, Liability, Payments, Due Next Twelve Months 2021 Lessee, Operating Lease, Liability, Payments, Due Year Two 2022 Lessee, Operating Lease, Liability, Payments, Due Year Three 2023 Lessee, Operating Lease, Liability, Payments, Due Year Four 2024 Lessee, Operating Lease, Liability, Payments, Due Year Five Thereafter Lessee, Operating Lease, Liability, Payments, Due after Year Five Total future minimum lease payments Lessee, Operating Lease, Liability, Payments, Due Less: Imputed interest Lessee, Operating Lease, Liability, Undiscounted Excess Amount Total Operating Lease, Liability Lease not yet commenced Lessee, Operating Lease, Lease Not yet Commenced, Liability Lessee, Operating Lease, Lease Not yet Commenced, Liability Goodwill and other intangible assets Goodwill and Intangible Assets Disclosure [Text Block] Schedule of Recognized Identified Assets Acquired and Liabilities Assumed Schedule of Recognized Identified Assets Acquired and Liabilities Assumed [Table Text Block] Business Acquisition, Pro Forma Information Business Acquisition, Pro Forma Information [Table Text Block] Retirement Benefits [Abstract] Defined Benefit Plans and Other Postretirement Benefit Plans Disclosures [Table] Defined Benefit Plans and Other Postretirement Benefit Plans Disclosures [Table] Retirement Plan Type [Axis] Retirement Plan Type [Axis] Retirement Plan Type [Domain] Retirement Plan Type [Domain] Retirement Plans Pension Plan [Member] Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items] Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items] Change in benefit obligations Defined Benefit Plan, Change in Benefit Obligation [Roll Forward] Benefit obligations at beginning of year Defined Benefit Plan, Benefit Obligation Service cost Defined Benefit Plan, Service Cost Interest cost Defined Benefit Plan, Interest Cost Actuarial gain Defined Benefit Plan, Benefit Obligation, Actuarial Gain (Loss) Foreign currency translation Defined Benefit Plan, Benefit Obligation, Foreign Currency Translation Gain (Loss) Benefits and expenses paid Defined Benefit Plan, Benefit Obligation, Benefits Paid Acquisitions Defined Benefit Plan, Benefit Obligation, Business Combination Benefit obligations at end of year Change in plan assets Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward] Fair value of plan assets at beginning of year Defined Benefit Plan, Plan Assets, Amount Actual return on plan assets Defined Benefit Plan, Plan Assets, Increase (Decrease) for Actual Return (Loss) Employer contributions Defined Benefit Plan, Plan Assets, Contributions by Employer Acquisitions Defined Benefit Plan, Plan Assets, Business Combination Gross benefits paid Defined Benefit Plan, Plan Assets, Benefits Paid Foreign currency translation Defined Benefit Plan, Plan Assets, Foreign Currency Translation Gain (Loss) Expenses paid Defined Benefit Plan Expenses Paid Defined Benefit Plan Expenses Paid Fair value of plan assets at end of year Reconciliation of funded status: Defined Benefit Plan, Funded (Unfunded) Status of Plan [Abstract] Benefit obligation at end of period Fair value of assets at end of period Funded status Defined Benefit Plan, Funded (Unfunded) Status of Plan Unrecognized actuarial (gain) loss Defined Benefit Plan, Accumulated Other Comprehensive Income (Loss), Gain (Loss), before Tax Balance sheet presentation: Defined Benefit Plan, Amounts for Asset (Liability) Recognized in Statement of Financial Position [Abstract] Other assets Assets for Plan Benefits, Defined Benefit Plan Accrued expenses Liability, Defined Benefit Plan, Current Pension and other postretirement benefit obligations Liability, Defined Benefit Plan, Noncurrent Accumulated other comprehensive income Defined Benefit Plan, Accumulated Other Comprehensive (Income) Loss, before Tax Net accrued benefit cost Defined Benefit Plan, Amounts for Asset (Liability) Recognized in Statement of Financial Position Statement of Financial Position [Abstract] Assets Assets [Abstract] Current assets Assets, Current [Abstract] Cash and cash equivalents Cash and Cash Equivalents, at Carrying Value Accounts receivable, net of allowance for doubtful accounts of $19,923 and $8,042 at December 31, 2019 and December 30, 2018, respectively Accounts Receivable, after Allowance for Credit Loss, Current Inventories Inventory, Net Prepaid expenses and other current assets Prepaid Expense and Other Assets, Current Total current assets Assets, Current Property, plant and equipment, net of accumulated depreciation of $277,291 and $219,256 at December 31, 2019 and December 30, 2018, respectively Property, Plant and Equipment, Net Operating lease assets Operating Lease, Right-of-Use Asset Goodwill Goodwill Intangible assets, net of accumulated amortization of $145,773 and $101,543 at December 31, 2019 and December 30, 2018, respectively Intangible Assets, Net (Excluding Goodwill) Deferred tax assets Deferred Income Tax Assets, Net Other assets Other Assets, Noncurrent Total assets Assets Liabilities and equity Liabilities and Equity [Abstract] Current liabilities Liabilities, Current [Abstract] Current portion of long-term debt Debt, Current Accounts payable Accounts Payable and Other Accrued Liabilities Accrued expenses Accrued Liabilities, Current Deferred revenue Contract with Customer, Liability, Current Other current liabilities Other Liabilities, Current Total current liabilities Liabilities, Current Long-term debt Long-term Debt, Excluding Current Maturities Convertible debt Convertible Debt, Noncurrent Deferred tax liabilities Deferred Income Tax Liabilities, Net Pension and other postretirement benefit obligations Liability, Pension and Other Postretirement and Postemployment Benefits, Noncurrent Long-term operating lease liabilities Operating Lease, Liability, Noncurrent Other long-term liabilities Other Liabilities, Noncurrent Total noncurrent liabilities Liabilities, Noncurrent Total liabilities Liabilities Redeemable noncontrolling interests Redeemable Noncontrolling Interest, Equity, Carrying Amount Commitments and contingent liabilities (see Note 12) Commitments and Contingencies Equity Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest [Abstract] Common stock, $0.01 par value, 2,000,000,000 shares authorized;129,386,258 shares issued and 128,991,544 shares outstanding at December 31, 2019; 60,508,249 shares issued and 60,306,286 shares outstanding at December 30, 2018 Common Stock, Value, Issued Treasury stock, at cost, 394,714 and 201,963 shares at December 31, 2019 and December 30, 2018, respectively Treasury Stock, Value Additional paid-in capital Additional Paid in Capital, Common Stock Retained earnings (accumulated deficit) Retained Earnings (Accumulated Deficit) Accumulated other comprehensive loss (income) Accumulated Other Comprehensive Income (Loss), Net of Tax Total equity Stockholders' Equity Attributable to Parent Total liabilities and equity Liabilities and Equity Schedule of Defined Benefit Plans Disclosures [Table] Schedule of Defined Benefit Plans Disclosures [Table] Other Postretirement Benefits Plan Other Postretirement Benefits Plan [Member] Defined Benefit Plan Disclosure [Line Items] Defined Benefit Plan Disclosure [Line Items] Effect of 1% increase in health care cost trend rates Defined Benefit Plan, Effect of One-Percentage Point Increase in Assumed Health Care Cost Trend Rate [Abstract] Defined Benefit Plan, Effect of One-Percentage Point Increase in Assumed Health Care Cost Trend Rate [Abstract] Accumulated postretirement benefit obligation Defined Benefit Plan Accumulated Postretirement Benefit Obligation After One Percentage Point Increase Defined Benefit Plan Accumulated Postretirement Benefit Obligation After One Percentage Point Increase Dollar change Defined Benefit Plan, Effect of One Percentage Point Increase on Accumulated Postretirement Benefit Obligation Percent change Defined Benefit Plan Percentage Effect One Percentage Point Increase On Accumulated Postretirement Benefit Obligation Defined Benefit Plan Percentage Effect One Percentage Point Increase On Accumulated Postretirement Benefit Obligation Effect of 1% decrease in health care cost trend rates Defined Benefit Plan, Effect of One-Percentage Point Decrease in Assumed Health Care Cost Trend Rate [Abstract] Defined Benefit Plan, Effect of One-Percentage Point Decrease in Assumed Health Care Cost Trend Rate [Abstract] Accumulated postretirement benefit obligation Defined Benefit Plan Accumulated Postretirement Benefit Obligation After One Percentage Point Decrease Defined Benefit Plan Accumulated Postretirement Benefit Obligation After One Percentage Point Decrease Dollar change Defined Benefit Plan, Effect of One Percentage Point Decrease on Accumulated Postretirement Benefit Obligation Percent change Defined Benefit Plan Percentage Effect One Percentage Point Decrease On Accumulated Postretirement Benefit Obligation Defined Benefit Plan Percentage Effect One Percentage Point Decrease On Accumulated Postretirement Benefit Obligation Weighted average discount rate Defined Benefit Plan, Assumptions Used Calculating Net Periodic Benefit Cost, Discount Rate Rate of increase in future compensation levels Defined Benefit Plan, Assumptions Used Calculating Net Periodic Benefit Cost, Rate of Compensation Increase Weighted average expected return on assets Defined Benefit Plan, Assumptions Used Calculating Net Periodic Benefit Cost, Expected Long-term Rate of Return on Plan Assets Restructuring and Related Activities [Abstract] Schedule of Restructuring and Related Costs [Table] Schedule of Restructuring and Related Costs [Table] Restructuring Type [Axis] Restructuring Type [Axis] Type of Restructuring [Domain] Type of Restructuring [Domain] Employee Severance Employee Severance [Member] Restructuring Cost and Reserve [Line Items] Restructuring Cost and Reserve [Line Items] Restructuring Reserve [Roll Forward] Restructuring Reserve [Roll Forward] Balance, beginning of period Restructuring Reserve Acquired restructuring provision balances Restructuring Charges, Acquired During Period Restructuring Charges, Acquired During Period Restructuring costs Cash payments Payments for Restructuring Balance, end of period Income Tax Disclosure [Abstract] Current Current Income Tax Expense (Benefit), Continuing Operations [Abstract] U.S. Federal Current Federal Tax Expense (Benefit) State and local Current State and Local Tax Expense (Benefit) Foreign Current Foreign Tax Expense (Benefit) Total Current Income Tax Expense (Benefit) Deferred Deferred Income Tax Expense (Benefit), Continuing Operations [Abstract] U.S. Federal Deferred Federal Income Tax Expense (Benefit) State and local Deferred State and Local Income Tax Expense (Benefit) Foreign Deferred Foreign Income Tax Expense (Benefit) Total Deferred Income Tax Expense (Benefit) Total Income Tax Expense (Benefit), Continuing Operations [Abstract] U.S. Federal Federal Income Tax Expense (Benefit), Continuing Operations State and local State and Local Income Tax Expense (Benefit), Continuing Operations Foreign Foreign Income Tax Expense (Benefit), Continuing Operations Total Restricted cash included in prepaid expenses and other current assets Restricted Cash, Current Restricted cash included in other assets Restricted Cash and Investments, Current Total cash, cash equivalents and restricted cash Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents Reconciliation of Unrecognized Tax Benefits, Excluding Amounts Pertaining to Examined Tax Returns [Roll Forward] Reconciliation of Unrecognized Tax Benefits, Excluding Amounts Pertaining to Examined Tax Returns [Roll Forward] Balance at beginning of year Unrecognized Tax Benefits Additions based on tax positions related to the current year Unrecognized Tax Benefits, Increase Resulting from Current Period Tax Positions Additions for tax positions of prior years Unrecognized Tax Benefits, Increase Resulting from Prior Period Tax Positions Reductions for tax positions or prior years Unrecognized Tax Benefits, Decrease Resulting from Prior Period Tax Positions Increase due to current year business acquisitions Unrecognized Tax Benefits, Reduction Resulting from Lapse of Applicable Statute of Limitations Balance at end of year Quarterly Financial Information Disclosure [Abstract] Quarterly statements of income (unaudited) Quarterly Financial Information [Text Block] Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Table] Fair Value, Recurring and Nonrecurring [Table] Defined Benefit Plan, Plan Assets, Category [Axis] Defined Benefit Plan, Plan Assets, Category [Axis] Defined Benefit Plan, Plan Assets, Category [Domain] Defined Benefit Plan, Plan Assets, Category [Domain] Cash and cash equivalents Defined Benefit Plan, Cash and Cash Equivalents [Member] Corporate common stock Defined Benefit Plan, Equity Securities, Common Stock [Member] Real estate Defined Benefit Plan, Real Estate [Member] Equities Equity Funds [Member] Fixed income Fixed Income Funds [Member] Interest in registered investment companies, Equities Defined Benefit Plan, Interest In Registered Investment Companies, Equities [Member] Defined Benefit Plan, Interest In Registered Investment Companies, Equities [Member] Interest in registered investment companies, Fixed Income Defined Benefit Plan, Interest In Registered Investment Companies, Fixed Income [Member] Defined Benefit Plan, Interest In Registered Investment Companies, Fixed Income [Member] Partnership/joint venture interests Defined Benefit Plan, Joint Venture Interest [Member] Defined Benefit Plan, Joint Venture Interest [Member] Hedge funds Hedge Funds [Member] Derivative contracts Defined Benefit Plan, Derivative [Member] Other Defined Benefit Plan Other [Member] Defined Benefit Plan Other [Member] Level 1 Fair Value, Inputs, Level 1 [Member] Level 2 Fair Value, Inputs, Level 2 [Member] Total Fair Value, Inputs, Level 1, 2 and 3 [Member] Instruments measured at net asset value using the practical expedient: Fair Value Measured at Net Asset Value Per Share [Member] Fair Value by Liability Class [Axis] Liability Class [Axis] Fair Value, Liabilities, Measured on Recurring Basis, Unobservable Input Reconciliation, by Liability Class [Domain] Fair Value by Liability Class [Domain] Derivative liabilities Derivative Financial Instruments, Liabilities [Member] Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] Assets Liabilities Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability Value Instruments measured at net asset value using the practical expedient Defined Benefit Plan, Alternative Investments, Fair Value Of Plan Assets Defined Benefit Plan, Alternative Investments, Fair Value Of Plan Assets Lessee, Lease, Description [Table] Lessee, Lease, Description [Table] Lessee, Lease, Description [Line Items] Lessee, Lease, Description [Line Items] Remaining lease term Lessee, Operating Lease, Remaining Lease Term Lessee, Operating Lease, Remaining Lease Term Current operating lease liability Operating Lease, Liability, Current Corporate and other Asset impairment charge Related Party Transactions [Abstract] Related party transactions Related Party Transactions Disclosure [Text Block] 2020 Defined Benefit Plan, Expected Future Benefit Payment, Next Twelve Months 2021 Defined Benefit Plan, Expected Future Benefit Payment, Year Two 2022 Defined Benefit Plan, Expected Future Benefit Payment, Year Three 2023 Defined Benefit Plan, Expected Future Benefit Payment, Year Four 2024 Defined Benefit Plan, Expected Future Benefit Payment, Year Five 2025 - 2029 Defined Benefit Plan, Expected Future Benefit Payment, Five Fiscal Years Thereafter Description of business, basis of presentation, and summary of significant accounting policies Basis of Presentation and Significant Accounting Policies [Text Block] Schedule of Related Party Transactions, by Related Party [Table] Schedule of Related Party Transactions, by Related Party [Table] Related Party [Axis] Related Party [Axis] Related Party [Domain] Related Party [Domain] Fortress Investment Group LLC Beneficial Owner [Member] Title of Individual [Axis] Title of Individual [Domain] Option Share-based Payment Arrangement, Option [Member] Legal Entity [Axis] Legal Entity [Axis] Entity [Domain] Entity [Domain] New Media New Media [Member] New Media [Member] Counterparty Name [Axis] Counterparty Name [Axis] Counterparty Name [Domain] Counterparty Name [Domain] FIG LLC FIG LLC [Member] FIG LLC [Member] Related Party Transaction [Line Items] Related Party Transaction [Line Items] Affiliates ownership Sale of Stock, Percentage of Ownership after Transaction Outstanding warrants Beneficial Ownership Warrant Percentage Beneficial Ownership Warrant Percentage Number of stock options Stock Options Held Stock Options Held Dividends Dividends Annual management fee Related Party Transactions, Annual Management Fee Percentage Related Party Transactions Annual Management Fee Percentage Incentive fee percent Related Party Transactions, Incentive Fee Percent Related Party Transactions, Incentive Fee Percent Reduction in number of options issuable Related Party Transaction, Reduction In Number Of Options Issuable Related Party Transaction, Reduction In Number Of Options Issuable Due from (to) related party Related Party Transaction, Due from (to) Related Party Shares issued to management (in shares) Business Acquisition, Equity Interest Issued or Issuable, Number of Shares Consecutive trading days with certain price triggering vesting Share-based Compensation Arrangement by Share-based Payment Award, Vesting Period, Consecutive Trading Days With Specific Price Per Share Share-based Compensation Arrangement by Share-based Payment Award, Vesting Period, Consecutive Trading Days With Specific Price Per Share Price of stock triggering option vesting (in dollars per share) Share-based Compensation Arrangement by Share-based Payment Award, Trigger Vesting Share Price Share-based Compensation Arrangement by Share-based Payment Award, Trigger Vesting Share Price Revenue from Contract with Customer [Abstract] Disaggregation of Revenue Disaggregation of Revenue [Table Text Block] Deferred Revenue, by Arrangement, Disclosure Contract with Customer, Asset and Liability [Table Text Block] Schedule of Segment Reporting Information, by Segment Schedule of Segment Reporting Information, by Segment [Table Text Block] Postretirement benefits other than pensions Pension and Other Postretirement Benefits Disclosure [Text Block] Trade receivables, allowance for doubtful receivables Accounts Receivable, Allowance for Credit Loss, Current Accumulated depreciation on property, plant and equipment Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment Definite-lived intangible assets, accumulated amortization Finite-Lived Intangible Assets, Accumulated Amortization Common stock, par value (in dollars per share) Common Stock, Par or Stated Value Per Share Common stock, Authorized (in shares) Common Stock, Shares Authorized Common stock, Issued (in shares) Common Stock, Shares, Issued Common Stock, Shares, Outstanding Common Stock, Shares, Outstanding Treasury stock (in shares) Treasury Stock, Shares Revenue, Initial Application Period Cumulative Effect Transition [Table] Revenue, Initial Application Period Cumulative Effect Transition [Table] Restatement Adjustment Restatement Adjustment [Member] Adjustments for New Accounting Pronouncements [Axis] Adjustments for New Accounting Pronouncements [Axis] Type of Adoption [Domain] Type of Adoption [Domain] Accounting Standards Update 2014-09 Accounting Standards Update 2014-09 [Member] Concentration Risk Benchmark [Axis] Concentration Risk Benchmark [Axis] Concentration Risk Benchmark [Domain] Concentration Risk Benchmark [Domain] Revenue Benchmark Revenue Benchmark [Member] Concentration Risk Type [Axis] Concentration Risk Type [Axis] Concentration Risk Type [Domain] Concentration Risk Type [Domain] Geographic Concentration Risk Geographic Concentration Risk [Member] License Agreements License Agreements [Member] License Agreements [Member] Customer Subscription Customer Subscription [Member] Customer Subscription [Member] Geographical [Axis] Geographical [Axis] Geographical [Domain] Geographical [Domain] International Non-US [Member] Revenue, Initial Application Period Cumulative Effect Transition [Line Items] Revenue, Initial Application Period Cumulative Effect Transition [Line Items] Increase (decrease) in revenues Revenue, percentage Concentration Risk, Percentage Contract term Contract With Customer, Term Contract With Customer, Term Bad debt expense Accounts Receivable, Credit Loss Expense (Reversal) Subscription period Revenue From Contract With Customer, Subscription Period Revenue From Contract With Customer, Subscription Period Increase in deferred revenue Increase (Decrease) in Contract with Customer, Liability Rate of increase in future compensation levels Current year medical trend Defined Benefit Plan, Health Care Cost Trend Rate Assumed, Next Fiscal Year Ultimate year medical trend Defined Benefit Plan, Ultimate Health Care Cost Trend Rate Net income (loss) Basic weighted average shares outstanding (in shares) Weighted Average Number of Shares Outstanding, Basic Effect of dilutive securities: Dilutive Securities, Effect on Basic Earnings Per Share [Abstract] Stock options and restricted stock grants (in shares) Weighted Average Number Diluted Shares Outstanding Adjustment Diluted weighted average shares outstanding (in shares) Weighted Average Number of Shares Outstanding, Diluted Basic net income (loss) per share attributable to Gannett (in dollars per share) Earnings Per Share, Basic Diluted net income (loss) per share attributable to Gannett (in dollars per share) Earnings Per Share, Diluted Debt Disclosure [Abstract] Schedule of Long-term Debt Instruments [Table] Schedule of Long-term Debt Instruments [Table] Long-term Debt, Type [Axis] Long-term Debt, Type [Axis] Long-term Debt, Type [Domain] Long-term Debt, Type [Domain] New Media Credit Agreement New Media Credit Agreement [Member] New Media Credit Agreement [Member] Related Party Transaction [Axis] Related Party Transaction [Axis] Related Party Transaction [Domain] Related Party Transaction [Domain] Halifax Media Halifax Media [Member] Halifax Media [Member] Credit Facility [Axis] Credit Facility [Axis] Credit Facility [Domain] Credit Facility [Domain] Revolving Credit Facility Revolving Credit Facility [Member] Debt Instrument [Line Items] Debt Instrument [Line Items] Maximum borrowing capacity Line of Credit Facility, Maximum Borrowing Capacity Total leverage ratio, not to exceed Debt Instrument, Covenant Compliance, Leverage Ratio, Maximum Debt Instrument, Covenant Compliance, Leverage Ratio, Maximum Loss on extinguishment of debt Aggregate principal amount of debt Long-term Debt Interest rate Debt Instrument, Interest Rate During Period Debt Conversion Description [Axis] Debt Conversion Description [Axis] Debt Conversion, Name [Domain] Debt Conversion, Name [Domain] Scenario One Scenario One [Member] Scenario One [Member] Scenario Two Scenario Two [Member] Scenario Two [Member] Convertible Debt Convertible Debt [Member] Debt Instrument [Axis] Debt Instrument [Axis] Debt Instrument, Name [Domain] Debt Instrument, Name [Domain] Senior Notes Senior Notes [Member] Convertible senior notes, interest rate (as a percent) Debt Instrument, Interest Rate, Stated Percentage Option to purchase additional principal amount of notes Debt Instrument, Convertible, If-converted Value in Excess of Principal Total aggregate principal amount Convertible Debt Net proceeds from debt Stated conversion rate Debt Instrument, Convertible, Conversion Ratio Stated conversion price (in usd per share) Debt Instrument, Convertible, Conversion Price Threshold trading days Debt Instrument, Convertible, Threshold Trading Days Threshold percentage of stock price trigger Debt Instrument, Convertible, Threshold Percentage of Stock Price Trigger Consecutive trading day period Debt Instrument, Convertible, Threshold Consecutive Trading Day Debt Instrument, Convertible, Threshold Consecutive Trading Day Repurchase price Debt Instrument, Redemption Price, Percentage Redemption value Debt Instrument, Redemption Value Debt Instrument, Redemption Value Effective interest rate on liability component of notes Debt Instrument, Interest Rate, Effective Percentage Interest expense Interest Expense, Debt Cash paid for interest Interest Paid, Excluding Capitalized Interest, Operating Activities Debt Instrument, Convertible, Conversion Ratio, In shares Debt Instrument, Convertible, Conversion Ratio, In shares Debt Instrument, Convertible, Conversion Ratio, In shares Debt Instrument, Convertible, Conversion Ratio, Amount Debt Instrument, Convertible, Conversion Ratio, Amount Debt Instrument, Convertible, Conversion Ratio, Amount Apollo Term Loan Apollo Term Loan [Member] Apollo Term Loan [Member] Senior-secured term loan Long-term Debt, Term Aggregate principal amount Debt Instrument, Face Amount Origination fees Number of individuals Number of Individuals Number of Individuals Debt to EBITDA ratio, maximum Debt Instrument, Covenant Term, Consolidated Debt To EBITDA Ratio, Initial Ratio Debt Instrument, Covenant Term, Consolidated Debt To EBITDA Ratio, Initial Ratio Debt to EBITDA ratio, final Debt Instrument, Covenant Term, Consolidated Debt To EBITDA Ratio, Subsequent Ratio Debt Instrument, Covenant Term, Consolidated Debt To EBITDA Ratio, Subsequent Ratio Number of directors Number of Directors Number of Directors Deferred financing costs Debt Issuance Costs, Gross Original issue discount Debt Instrument, Unamortized Discount Debt fees expense Debt Fees Expense Debt Fees Expense Interest expense Amortization of deferred financing costs Accumulated Amortization of Other Deferred Costs Restructuring and Related Costs Restructuring and Related Costs [Table Text Block] Disaggregation of Revenue [Table] Disaggregation of Revenue [Table] Advertising, Marketing Services, and Other Advertising and Other [Member] Advertising and Other [Member] Disaggregation of Revenue [Line Items] Disaggregation of Revenue [Line Items] Movement in Deferred Revenue [Roll Forward] Change in Contract With Customer, Liability [Roll Forward] Change in Contract With Customer, Liability [Roll Forward] Beginning balance Contract with Customer, Liability Acquired deferred revenue Contract with Customer, Liability, Increase (Decrease) for Contract Acquired in Business Combination Cash receipts Contract With Customer, Liability, Increase From Cash Receipts Contract With Customer, Liability, Increase From Cash Receipts Revenue recognized Contract with Customer, Liability, Revenue Recognized Ending balance Schedule of Related Party Transactions Schedule of Related Party Transactions [Table Text Block] Provision (Benefit) for Income Taxes on Income from Continuing Operations Schedule of Components of Income Tax Expense (Benefit) [Table Text Block] Reconciliation of Effective Tax Rate Schedule of Effective Income Tax Rate Reconciliation [Table Text Block] Deferred Tax Liabilities and Assets Schedule of Deferred Tax Assets and Liabilities [Table Text Block] Summary of Valuation Allowance Summary of Valuation Allowance [Table Text Block] Summary of Activity Related to Unrecognized Tax Benefits, Excluding Federal Tax Benefit of State Tax Deductions Summary of Income Tax Contingencies [Table Text Block] 2020 Finite-Lived Intangible Assets, Amortization Expense, Next Twelve Months 2021 Finite-Lived Intangible Assets, Amortization Expense, Year Two 2022 Finite-Lived Intangible Assets, Amortization Expense, Year Three 2023 Finite-Lived Intangible Assets, Amortization Expense, Year Four 2024 Finite-Lived Intangible Assets, Amortization Expense, Year Five Thereafter Finite-Lived Intangible Assets, Amortization Expense, after Year Five Net Carrying Amount Finite-Lived Intangible Assets, Net Supplemental equity information Stockholders' Equity Note Disclosure [Text Block] Retirement Plan Name [Axis] Retirement Plan Name [Axis] Retirement Plan Name [Domain] Retirement Plan Name [Domain] CWA/ITU Negotiated Pension Plan Communications Workers Of America [Member] Communications Workers Of America [Member] GCIU—Employer Retirement Benefit Plan Graphic Communications Conference I B T [Member] Graphic Communications Conference IBT [Member] Newspaper Guild of Detroit Plan Newspaper Guild Of Detroit [Member] Newspaper Guild Of Detroit [Member] IAM National Pension Plan International Association Of Machinists [Member] International Association Of Machinists Teamsters Pension Trust Fund of Philadelphia and Vicinity Teamster Pension Fund Of Philadelphia And Vicinity [Member] Teamster Pension Fund of Philadelphia and Vicinity [Member] Central Pension Fund of the International Union of Operating Engineers and Participating Employers International Union Of Operating Engineers [Member] International Union Of Operating Engineers [Member] Contributions Multiemployer Plan, Contributions by Employer Lease, Cost Lease, Cost [Table Text Block] Lessee, Operating Lease, Liability, Maturity Lessee, Operating Lease, Liability, Maturity [Table Text Block] Domestic Income (Loss) from Continuing Operations before Income Taxes, Domestic Foreign Income (Loss) from Continuing Operations before Income Taxes, Foreign Total Income Loss From Continuing Operations Before Income Taxes Sum of operating profit and nonoperating income (expense) before income taxes. Schedule of Benefit Obligations in Excess of Fair Value of Plan Assets Defined Benefit Plan, Plan with Projected Benefit Obligation in Excess of Plan Assets [Table Text Block] Schedle of Benefit Costs Schedule of Net Benefit Costs [Table Text Block] Assumptions Used to Determine Defined Benefit Plans Costs Defined Benefit Plan, Assumptions [Table Text Block] Schedule of Effect of One-Percentage-Point Change in Assumed Health Care Cost Trend Rates Schedule of Effect of One-Percentage-Point Change in Assumed Health Care Cost Trend Rates [Table Text Block] Estimated Benefit Payments Schedule of Expected Benefit Payments [Table Text Block] Accelerated depreciation Restructuring and Related Cost, Accelerated Depreciation Schedule of Earnings (Loss) Per Share (Basic and Diluted) Schedule of Earnings Per Share, Basic and Diluted [Table Text Block] Schedule of Securities from Computation of Diluted Income Per Share Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table Text Block] Summary of Manager Stock Options Share-based Payment Arrangement, Option, Activity [Table Text Block] Schedule of Nonvested RSG Cost Schedule of Nonvested Restricted Stock Units Activity [Table Text Block] Schedule of Accumulated Other Comprehensive Income (Loss) Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block] Number of Options Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward] Outstanding beginning (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number Granted (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross Outstanding ending (in shares) Exercisable at December 31, 2019 (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Number Weighted-Average Grant Date Fair Value Share-based Compensation Arrangement by Share-based Payment Award, Options, Nonvested, Number of Shares [Roll Forward] Outstanding beginning (in dollars per shares) Share-based Compensation Arrangement by Share-based Payment Award, Option, Nonvested, Weighted Average Exercise Price Granted (in dollars per shares) Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Weighted Average Grant Date Fair Value Outstanding ending (in dollars per shares) Exercisable at December 31, 2019 (in dollars per share) Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Weighted Average Grant Date Fair Value Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Weighted Average Grant Date Fair Value Weighted-Average Exercise Price Share Based Compensation Arrangement By Share Based Payment Award Options Weighted Average Exercise Price [Abstract] Share-based Compensation Arrangement by Share-based Payment Award, Options, Weighted Average Exercise Price [Abstract] Outstanding beginning (in dollars per shares) Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price Granted (in dollars per shares) Share-based Compensation Arrangements by Share-based Payment Award, Options, Grants in Period, Weighted Average Exercise Price Outstanding ending (in dollars per shares) Exercisable at December 31, 2019 (in dollars per shares) Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Weighted Average Exercise Price Weighted-Average Remaining Contractual Term (Years) Share Based Compensation Arrangement By Share Based Payment Award Options Weighted Average Remaining Contractual Term [Abstract] Share-based Compensation Arrangement by Share-based Payment Award, Options, Weighted Average Remaining Contractual Term [Abstract] Weighted-Average Remaining Contractual Term (Years) Share-based Compensation Arrangement by Share-based Payment 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Equity Component [Domain] Common stock Common Stock [Member] Additional Paid-in Capital Additional Paid-in Capital [Member] Accumulated Other Comprehensive Loss AOCI Attributable to Parent [Member] Retained Earnings (Accumulated Deficit) Retained Earnings [Member] Treasury stock Treasury Stock [Member] Statement [Line Items] Statement [Line Items] Increase (Decrease) in Stockholders' Equity [Roll Forward] Increase (Decrease) in Stockholders' Equity [Roll Forward] Beginning Balance (in shares) Beginning Balance Restricted share grants (in shares) Stock Issued During Period, Shares, Restricted Stock Award, Net of Forfeitures Restricted share grants Shares Granted, Value, Share-based Payment Arrangement, after Forfeiture Other comprehensive income, net of income taxes Other Comprehensive Income (Loss), Net of Tax Non-cash compensation expense Stock Issued During Period, Value, Stock Options Exercised Offering costs Adjustments to Additional Paid in Capital, Stock Issued, Issuance Costs Exercise of stock options (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period Purchase of treasury stock (in shares) Treasury Stock, Shares, Acquired Purchase of treasury stock Treasury Stock, Value, Acquired, Cost Method Restricted share forfeiture (in shares) Stock Issued During Period, Shares, Restricted Stock Award, Forfeited Repurchase of common stock (in shares) Repurchase of common stock Stock Repurchased During Period, Value Dividends declared Dividends, Common Stock, Cash Issuance of common stock (in shares) Stock Issued During Period, Shares, New Issues Issuance of common stock Stock Issued During Period, Value, New Issues Restricted stock awards settled (in shares) Stock Issued During Period Shares Restricted Stock Award Settled Stock Issued During Period Shares Restricted Stock Award Settled Restricted stock awards settled Stock Issued During Period Value Restricted Stock Award Settled Stock Issued During Period Value Restricted Stock Award Settled Impact of adoption of ASC 842 - Leases Cumulative Effect of New Accounting Principle in Period of Adoption Restricted share forfeiture APIC, Share-based Payment Arrangement, Increase for Cost Recognition Other activity Stockholders' Equity, Other Ending Balance (in shares) Ending Balance Other Comprehensive Income (Loss), Tax Other Comprehensive Income (Loss), Tax Property, Plant and Equipment [Table] Property, Plant and Equipment [Table] Property, Plant and Equipment, Type [Axis] Property, Plant and Equipment, Type [Axis] Property, Plant and Equipment, Type [Domain] Property, Plant and Equipment, Type [Domain] Land Land [Member] Buildings and improvements Building and Building Improvements [Member] Machinery and equipment Machinery and Equipment [Member] Furniture, fixtures, and computer software Furniture, Fixtures, And Computer Software [Member] Furniture, Fixtures, And Computer Software [Member] Construction in progress Construction in Progress [Member] Property, Plant and Equipment [Line Items] Property, Plant and Equipment [Line Items] Total property, plant and equipment Property, Plant and Equipment, Gross Accumulated depreciation Net property, plant and equipment Indebtedness Debt Disclosure [Text Block] Components of net periodic benefit cost: Defined Benefit Plan, Net Periodic Benefit Cost (Credit) [Abstract] Operating expenses: Defined Benefit Plans and Other Postretirement Benefit Plans, Operating Expenses [Abstract] Defined Benefit Plans and Other Postretirement Benefit Plans, Operating Expenses [Abstract] Non-operating expenses: Defined Benefit Plans and Other Postretirement Benefit Plans, Non-Operating Expenses [Abstract] Defined Benefit Plans and Other Postretirement Benefit Plans, Non-Operating Expenses [Abstract] Expected return on plan assets Defined Benefit Plan, Expected Return (Loss) on Plan Assets Amortization of unrecognized gain Defined Benefit Plan, Amortization of Prior Service Cost (Credit) Total 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Discount Rate Rate of increase in future compensation levels Defined Benefit Plan, Assumptions Used Calculating Benefit Obligation, Rate of Compensation Increase Weighted average expected return on assets Defined Benefit Plan, Assumptions Used Calculating Benefit Obligation, Weighted Average Expensed Return On Assets Defined Benefit Plan, Assumptions Used Calculating Benefit Obligation, Weighted Average Expensed Return On Assets Fair Value, Assets (Liabilities) Measured on Recurring Basis, Unobservable Input Reconciliation [Roll Forward] Defined Benefit Plan, Change in Fair Value of Plan Assets, Level 3 Reconciliation [Roll Forward] Actual Return on Plan Assets, Level 3 Assets Acquired Defined Benefit Plan, Plan Assets Level 3 Reconciliation, Increase (Decrease) For Actual Return (Loss) On Plan Assets, Assets Acquired Defined Benefit Plan, Plan Assets Level 3 Reconciliation, Increase (Decrease) For Actual Return (Loss) On Plan Assets, Assets Acquired Actual Return on Plan Assets Relating to Assets Still Held at Report Date Defined Benefit Plan, Plan Assets Level 3 Reconciliation, Increase (Decrease) for Actual Return (Loss) on Plan Assets Still Held Actual Return On Plan Assets Relating to Assets Sold During the Period Defined Benefit Plan, Plan Assets Level 3 Reconciliation, Increase (Decrease) for Actual Return (Loss) on Plan Assets Sold Purchases Defined Benefit Plan, Plan Assets Level 3 Reconciliation, Increase for Purchase Sales Defined Benefit Plan, Plan Assets Level 3 Reconciliation, Decrease for Sale Settlements Defined Benefit Plan, Plan Assets Level 3 Reconciliation, Decrease for Settlement Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] Balance at Beginning of Year Actual Return on Plan Assets, Level 3 Assets Acquired Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Assets Acquired Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Assets Acquired Actual Return on Plan Assets, Relating to Assets Still Held at Report Date Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Gain (Loss) Included in Earnings Actual Return on Plan Assets, Relating to Assets Sold During the Period Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Gain (Loss) Included in Other Comprehensive Income (Loss) Purchases Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Purchases Sales Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Sales Settlements Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Settlements Balance at End of Year Income Statement [Abstract] Operating revenues: Revenues [Abstract] Total operating revenues Operating expenses: Costs and Expenses [Abstract] Operating costs Cost of Goods and Services Sold Selling, general and administrative expenses Selling, General and Administrative Expense Depreciation and amortization Goodwill and mastheads impairment Total operating expenses Costs and Expenses Operating income (loss) Operating Income (Loss) Non-operating (income) expense: Nonoperating Income (Expense) [Abstract] Other (income) expense Other Nonoperating Income Non-operating expense Nonoperating Income (Expense) Income (loss) before income taxes Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest Provision (benefit) for income taxes Net income (loss) Net Income (Loss), Including Portion Attributable to Noncontrolling Interest Net loss attributable to redeemable noncontrolling interests Net Income (Loss) Attributable to Redeemable Noncontrolling Interest Net income (loss) attributable to Gannett Earnings (loss) per share attributable to Gannett - basic (in dollars per share) Earnings (loss) per share attributable to Gannett - diluted (in dollars per share) Dividends declared per share (in dollars per share) Common Stock, Dividends, Per Share, Declared Other comprehensive income (loss): Other Comprehensive Income (Loss), Tax, Portion Attributable to Parent, Parenthetical Disclosures [Abstract] Foreign currency translation adjustments Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, before Tax Pension and other postretirement benefit items: Other Comprehensive Income Defined Benefit Plans Amortization Recognized as Net Periodic Pension and Postretirement Cost Benefit [Abstract] Other Comprehensive Income, Defined Benefit Plan's Adjustment, Amortization recognized as net periodic pension and postretirement (cost) benefit. Net actuarial (loss) gain Amortization of net actuarial loss (gain) Other Other Comprehensive Income (Loss), Defined Benefit Plan, Participant Data Correction, before Tax Other Comprehensive Income (Loss), Defined Benefit Plan, Participant Data Correction, before Tax Total pension and other postretirement benefit items Other comprehensive income (loss) before tax Other Comprehensive Income (Loss), before Tax Income tax effect related to components of other comprehensive income (loss) Other comprehensive income (loss), net of tax Comprehensive income (loss) Comprehensive Income (Loss), Net of Tax, Including Portion Attributable to Noncontrolling Interest Comprehensive income (loss) attributable to redeemable noncontrolling interests Comprehensive Income (Loss), Net of Tax, Attributable to Noncontrolling Interest Comprehensive income (loss) attributable to Gannett Comprehensive Income (Loss), Net of Tax, Attributable to Parent Marketing Solutions Marketing Solutions Segment [Member] Marketing Solutions Segment [Member] Compensation Accrued Salaries Taxes (primarily property and sales taxes) Taxes Payable Benefits Accrued Employee Benefits, Current Interest Interest Payable Other Other Accrued Liabilities Total accrued liabilities Accrued Liabilities Income taxes Income Tax Disclosure [Text Block] Schedule of Goodwill [Table] Schedule of Goodwill [Table] Marketing Solutions Goodwill [Line Items] Goodwill [Line Items] Goodwill [Roll Forward] Goodwill [Roll Forward] Beginning Balance Goodwill acquired in business combinations Goodwill, Acquired During Period Measurement period adjustments Goodwill, Translation and Purchase Accounting Adjustments Impairment loss Goodwill related to divestitures Goodwill, Written off Related to Sale of Business Unit Foreign currency exchange rate changes Goodwill, Foreign Currency Translation Gain (Loss) Ending Balance Goodwill accumulated impairment losses Goodwill, Impaired, Accumulated Impairment Loss Indefinite-lived Intangible Assets [Axis] Indefinite-lived Intangible Assets [Axis] Indefinite-lived Intangible Assets, Major Class Name [Domain] Indefinite-lived Intangible Assets, Major Class Name [Domain] Trade names Trade Names [Member] Mastheads Mastheads [Member] Mastheads [Member] Developed technology Developed Technology [Member] Developed Technology [Member] Noncompete agreements Noncompete Agreements [Member] Software Computer Software, Intangible Asset [Member] Certain Publications and Businesses Certain Publications and Businesses [Member] Certain Publications and Businesses [Member] Cash and restricted cash acquired Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Cash and Equivalents Current assets Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Assets Other current assets Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Assets, Other Plant, property and equipment Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Property, Plant, and Equipment Operating lease assets Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Operating Lease Assets Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Operating Lease Assets Finite lived intangible assets Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Finite-Lived Intangibles Indefinite lived intangible assets Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Indefinite-Lived Intangible Assets Goodwill Total assets acquired Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Assets Acquired, Including Goodwill Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Assets Acquired, Including Goodwill Current liabilities Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Liabilities Noncurrent liabilities Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Noncurrent Liabilities Total liabilities assumed Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Liabilities Redeemable noncontrolling interest Business Combination, Acquisition of Less than 100 Percent, Noncontrolling Interest, Fair Value Net assets Business Combination, Recognized Identifiable Assets Acquired, Goodwill, and Liabilities Assumed, Less Noncontrolling Interest Revenues Operating income (loss) Income (loss) before income taxes Net income (loss) attributable to Gannett Earnings (loss) per share-Basic (in dollars per share) Earnings (loss) per share-Diluted (in dollars per share) Acquisition costs Mergerand Acquisition Costs Mergerand Acquisition Costs Schedule of Indefinite-Lived Intangible Assets [Table] Schedule of Indefinite-Lived Intangible Assets [Table] Indefinite-lived Intangible Assets [Line Items] Indefinite-lived Intangible Assets [Line Items] Nonamortized intangible assets Indefinite-lived Intangible Assets (Excluding Goodwill) Gross Carrying Amount Finite-Lived Intangible Assets, Gross Accumulated Amortization Goodwill Goodwill, Gross Total Intangible Assets, Gross (Including Goodwill) Intangible Assets, Gross (Including Goodwill) Integration and reorganization costs and long-lived asset impairments Restructuring, Impairment, and Other Activities Disclosure [Text Block] GRP Gannett Retirement Plan [Member] Gannett Retirement Plan [Member] George W. Prescott Pension Plan George W.Prescott Pension Plan [Member] George W.Prescott Pension Plan [Member] Times Publishing Company Pension Plan Times Publishing Company Pension Plan [Member] Times Publishing Company Pension Plan [Member] SERP SERP [Member] SERP [Member] U.K. Pension Plans Newsquest [Member] Newsquest [Member] JMG Plan JMG [Member] JMG [Member] Fair Value of Plan Assets Benefit Obligation Funded Status Non-current deferred tax assets (liabilities): Components of Deferred Tax Assets and Liabilities [Abstract] Deferred tax liabilities: Deferred Tax Liabilities, Gross [Abstract] Fixed assets Deferred Tax Liabilities, Property, Plant and Equipment Right of use asset Deferred Tax Liabilities, Leasing Arrangements Definite and indefinite lived intangible assets Deferred Tax Liabilities, Intangible Assets Total deferred tax liabilities Deferred Tax Liabilities, Gross Total deferred tax liabilities Deferred Tax Assets, Net [Abstract] Accrued compensation costs Deferred Tax Assets, Accrued Compensation Costs Deferred Tax Assets, Accrued Compensation Costs Accrued expenses Deferred Tax Assets, Tax Deferred Expense, Reserves and Accruals, Accrued Liabilities Disallowed interest Deferred Tax Asset, Interest Carryforward Pension and other postretirement benefit obligations Deferred Tax Assets, Tax Deferred Expense, Compensation and Benefits, Pensions and Other Postretirement Benefit Obligation Deferred Tax Assets, Tax Deferred Expense, Compensation and Benefits, Pensions and Other Postretirement Benefit Obligation Partnership investments including impairments Deferred Tax Assets, Equity Method Investments Loss carryforwards Deferred Tax Assets, Operating Loss Carryforwards Lease liabilities Deferred Tax Assets, Lease Liabilities Deferred Tax Assets, Lease Liabilities Other Deferred Tax Assets, Other Total deferred tax assets Deferred Tax Assets, Gross Less: Valuation allowance Deferred Tax Assets, Valuation Allowance Total net deferred tax assets Deferred Tax Assets, Net of Valuation Allowance Noncurrent net deferred tax assets/(liabilities) Deferred Tax Assets, Net Noncurrent net deferred tax assets/(liabilities) Deferred Tax Liabilities, Net Schedule of Quarterly Financial Information Quarterly Financial Information [Table Text Block] Certain Publications And Related Assets Certain Publications And Related Assets [Member] Certain Publications And Related Assets [Member] Land and Building Land and Building [Member] Mail Tribune Mail Tribune [Member] Mail Tribune [Member] Proceeds from sale of property Proceeds from Sale of Property, Plant, and Equipment Net gain (loss) on sale or disposal of assets Gain (Loss) on Disposition of Property Plant Equipment Current year medical trend Defined Benefit Plan Assumptions Used Calculating Benefit Obligations, Current Year Medical Trend Defined Benefit Plan Assumptions Used Calculating Benefit Obligations, Current Year Medical Trend Ultimate year medical trend Defined Benefit Plan Assumptions Used Calculating Benefit Obligations Ultimate Year Medical Trand Defined Benefit Plan Assumptions Used Calculating Benefit Obligations Ultimate Year Medical Trand Schedule of Share-based Compensation Arrangements by Share-based Payment Award [Table] Schedule of Share-based Compensation Arrangements by Share-based Payment Award [Table] Antidilutive Securities [Axis] Antidilutive Securities [Axis] Antidilutive Securities, Name [Domain] Antidilutive Securities, Name [Domain] Stock warrants Warrant [Member] Stock options Equity Option [Member] Restricted stock grants Restricted Stock [Member] Share-based Compensation Arrangement by Share-based Payment Award [Line Items] Share-based Compensation Arrangement by Share-based Payment Award [Line Items] Computation of diluted income per share (in shares) Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount Commitments and Contingencies Disclosure [Abstract] Commitments, contingencies and other matters Commitments and Contingencies Disclosure [Text Block] Fair value measurement Fair Value Disclosures [Text Block] Actuarial gain Participant contributions Defined Benefit Plan, Benefit Obligation, Contributions by Plan Participant Employer implicit subsidy fulfilled Employer Implicit Subsidy Fulfilled Employer Implicit Subsidy Fulfilled Participant contributions Defined Benefit Plan, Plan Assets, Contributions by Plan Participant Gross benefits paid Funded status Unrecognized actuarial gain Balance sheet presentation: Net accrued benefit cost Retirement Plans