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Goodwill And Identifiable Intangibles (Goodwill) (Details) - USD ($) $ in Millions | 3 Months Ended |
--- | --- | ---
Mar. 31, 2019 | Dec. 31, 2016
Goodwill [Roll Forward] |  |
Balance at December 31, 2018 | $ 708.9 |
Translation | (1.7) |
Balance at March 31, 2019 | 706.9 |
Goodwill, accumulated impairment losses |  | $ 215.1
ACCO Brands North America |  |
Goodwill [Roll Forward] |  |
Balance at December 31, 2018 | 375.6 |
Translation | 0.0 |
Balance at March 31, 2019 | 375.6 |
ACCO Brands EMEA |  |
Goodwill [Roll Forward] |  |
Balance at December 31, 2018 | 165.6 |
Translation | (1.7) |
Balance at March 31, 2019 | 163.9 |
ACCO Brands International |  |
Goodwill [Roll Forward] |  |
Balance at December 31, 2018 | 167.7 |
Translation | 0.0 |
Balance at March 31, 2019 | 167.4 |
GOBA Internacional, SA de CV |  |
Goodwill [Roll Forward] |  |
GOBA Acquisition | (0.3) |
GOBA Internacional, SA de CV | ACCO Brands North America |  |
Goodwill [Roll Forward] |  |
GOBA Acquisition | 0.0 |
GOBA Internacional, SA de CV | ACCO Brands EMEA |  |
Goodwill [Roll Forward] |  |
GOBA Acquisition | 0.0 |
GOBA Internacional, SA de CV | ACCO Brands International |  |
Goodwill [Roll Forward] |  |
GOBA Acquisition | $ (0.3) |

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- Definition Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 45 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=77989000&loc=SL49117168-202975 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=99380562&loc=d3e13770-109266 + Details
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- Definition Amount of foreign currency translation gain (loss) which increases (decreases) an asset representing future economic benefits from other assets acquired in a business combination that are not individually identified and separately recognized. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (f) -URI http://asc.fasb.org/extlink&oid=108376223&loc=d3e13816-109267 + Details
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