Description of business and basis of presentation (Policies)	3 Months Ended
	Mar. 31, 2025
Accounting Policies [Abstract]
Basis of presentation	Basis of presentation The unaudited condensed consolidated financial statements of the Company have been prepared in accordance with generally accepted accounting principles in the United States of America ("U.S. GAAP") for interim financial information and with the instructions to Form 10-Q and Article 10 of Regulation S-X. As permitted under those rules, certain notes or other financial information that are normally required by U.S. GAAP have been condensed or omitted from these interim financial statements. The unaudited condensed consolidated financial statements should therefore be read in conjunction with the audited consolidated financial statements included in our Annual Report on Form 10-K for the year ended December 31, 2024. In the opinion of management, the unaudited condensed consolidated financial statements as of March 31, 2025 include all the assets, liabilities, revenues, expenses, and cash flows of entities which Gannett controls due to ownership of a majority voting interest ("subsidiaries"). In addition, in the opinion of management, the unaudited condensed consolidated financial statements as of March 31, 2025 reflect all necessary adjustments for a fair statement of the results for the interim period. All significant intercompany accounts and transactions have been eliminated in consolidation, and the Company consolidates its subsidiaries.
Use of estimates	Use of estimates The preparation of the financial statements in conformity with U.S. GAAP requires management to make estimates and assumptions that affect the amounts reported in the unaudited condensed consolidated financial statements and footnotes thereto. Actual results could differ materially from those estimates. Significant estimates inherent in the preparation of the unaudited condensed consolidated financial statements include pension and postretirement benefit obligation assumptions, income taxes, goodwill and intangible asset impairment analysis, valuation of property, plant, and equipment and the mark to market of the conversion feature associated with the convertible debt.
Recent accounting pronouncements not yet adopted	Recent accounting pronouncements not yet adopted Induced conversions of convertible debt instruments In November 2024, the FASB issued guidance, ASU 2024-04, which clarifies the assessment of whether certain settlements of convertible debt instruments should be accounted for as an inducement conversion. The new guidance is effective for annual reporting periods beginning after December 15, 2025, and interim periods within those annual periods. The Company is currently evaluating the provisions of the updated guidance and assessing the impact on the condensed consolidated financial statements. Disaggregation of income statement expenses In November 2024, the FASB issued guidance, ASU 2024-03, which requires disaggregated disclosures of certain categories of expenses that are included in expense line items on the face of the income statement. The disclosures are required on an annual and interim basis. ASU 2024-03 is effective for annual reporting periods beginning after December 15, 2026, and interim reporting periods beginning after December 15, 2027. The Company is currently evaluating the provisions of the updated guidance and assessing the impact on the condensed consolidated financial statements. Income tax disclosures In November 2023, the FASB issued guidance, ASU 2023-09, which enhances annual income tax disclosures. ASU 2023-09 requires disaggregated information about a reporting entity's effective tax rate reconciliation as well as information on income taxes paid. ASU 2023-09 will be effective for annual periods beginning after December 15, 2024. The Company is currently evaluating the provisions of the updated guidance and assessing the impact on the condensed consolidated financial statements.