Basis Of Presentation	12 Months Ended
Basis Of Presentation	Dec. 31, 2019
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Basis Of Presentation	1. Basis of Presentation As used in this Annual Report on Form 10-K for the fiscal year ended December 31, 2019, the terms "ACCO Brands," "ACCO," the "Company," "we," "us," and "our" refer to ACCO Brands Corporation, a Delaware corporation incorporated in 2005, and its consolidated domestic and international subsidiaries. The management of ACCO Brands Corporation is responsible for the accuracy and internal consistency of the preparation of the consolidated financial statements and notes contained in this Annual Report on Form 10-K. The consolidated financial statements include the accounts of ACCO Brands Corporation and its domestic and international subsidiaries. Intercompany accounts and transactions have been eliminated in consolidation. Effective August 1, 2019, we completed the acquisition (the "Foroni Acquisition") of Indústria Gráfica Foroni Ltda. ("Foroni"), a leading provider of Foroni^®branded notebooks and paper-based school and office products in Brazil. The preliminary purchase price was $42.1 million, and is subject to working capital and other adjustments. We also assumed $7.6 million of debt. The Foroni Acquisition advances our strategy to expand in faster growing geographies and product categories, add consumer-centric brands and diversify our customer base. The results of Foroni are included in the ACCO Brands International segment effective August 1, 2019. On July 2, 2018, we completed the acquisition (the "GOBA Acquisition") of GOBA Internacional, S.A. de C.V. ("GOBA") for a purchase price of $37.2 million, net of cash acquired and working capital adjustments. GOBA is a leading provider of Barrilito^®brandedschool and craft products in Mexico. The acquisition increased the breadth and depth of our distribution throughout Mexico, especially with wholesalers and retailers and added a strong offering of school and craft products to our product portfolio in Mexico. The results of GOBA are included in the ACCO Brands International segment as of July 2, 2018. On January 31, 2017, we completed the acquisition (the "Esselte Acquisition") of Esselte Group Holdings AB ("Esselte"). The acquisition of Esselte made ACCO Brands a leading European manufacturer and marketer of branded consumer and office products, and improved ACCO Brands' scale. Esselte products are primarily marketed under the Leitz^®, Rapid^® and Esselte^® brands in the storage and organization, stapling, punching, binding and laminating equipment and do-it-yourself tools product categories. The results of Esselte are included in all three of the Company's operating segments, but primarily in the ACCO Brands EMEA segment as of February 1, 2017. For more information on these acquisitions, see "Note 3. Acquisitions." On January 1, 2019, the Company adopted accounting standard ASU No. 2016-02, Leases (Topic 842), applying the transition method in accounting standard ASU 2018-11 Leases (Topic 842), Targeted Improvements. ASU 2018-11 allows an entity to initially apply ASU 2016-02 at the adoption date and recognize a cumulative-effect adjustment to the opening balance of retained earnings in the period of adoption. The comparative information has not been restated and continues to be reported under the accounting standards in effect for those periods. For more information, see "Note 2. Recent Accounting Pronouncements and Adopted Accounting Standards" and "Note 5. Leases." Certain prior year amounts have been reclassified for consistency with the current year presentation in our Condensed Consolidated Balance Sheet, primarily due to the Company's adoption of ASU No. 2016-02, Leases (Topic 842) at the beginning of 2019.