| **Goodwill and Identifiable Intangibles Acquired Finite-Lived Intangibles (Details) (Details) - Pelikan Artline Pty Ltd $ in Millions** | May 02, 2016 USD ($) |
|-----------------------------------------------------------------------------------------------------------------------------------------|----------------------|
| **Acquired Finite-Lived Intangible Assets [Line Items]**                                                                                |                 |
| Identifiable intangibles                                                                                                                | $ 58.0               |
| Customer and contractual relationships                                                                                                  |                 |
| **Acquired Finite-Lived Intangible Assets [Line Items]**                                                                                |                 |
| Identifiable intangibles                                                                                                                | 36.0                 |
| Trade Names                                                                                                                             |                 |
| **Acquired Finite-Lived Intangible Assets [Line Items]**                                                                                |                 |
| Identifiable intangibles                                                                                                                | $ 22.0               |

| X                                                                                                                                                                                                                                                                                                                                                                                                                                    |
|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.
+ References
No definition available.
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| X                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         |
|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
The amount of identifiable intangible assets recognized as of the acquisition date.
+ References
Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 10 -Section 55 -Paragraph 37 -URI http://asc.fasb.org/extlink&oid=73531372&loc=d3e2207-128464Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=73530397&loc=d3e4845-128472
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| X                                                                                                                                                      |
|--------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Details**Name:**us-gaap_BusinessAcquisitionAxis=abd_PelikanArtlinePtyLtdMember**Namespace Prefix:****Data Type:**na**Balance Type:****Period Type:** |
| X                                                                                                                                                                               |
|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
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| X                                                                                                                                                                    |
|----------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Details**Name:**us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis=us-gaap_TradeNamesMember**Namespace Prefix:****Data Type:**na**Balance Type:****Period Type:** |