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Restructuring Charges - Reconciliation of Total Amounts Expected to be Incurred from Open Restructuring Plans Anticipated to be Realized (Detail) - USD ($) $ in Millions | 3 Months Ended | 12 Months Ended
--- | --- | ---
Oct. 31, 2018 | Oct. 31, 2017 | Oct. 31, 2018 | Oct. 31, 2017 | Oct. 31, 2016
Restructuring and Related Cost [Abstract] |  |  |  |  |
Total amounts expected to be incurred | $ 30.6 |  | $ 30.6 |  |
Restructuring charges | 4.8 | $ 4.0 | 18.6 | $ 12.7 | $ 26.9
Amounts remaining to be incurred | 12.0 |  | 12.0 |  |
Employee Separation Costs |  |  |  |  |
Restructuring and Related Cost [Abstract] |  |  |  |  |
Restructuring charges |  |  | 14.8 | 9.0 | 16.7
Other Restructuring Costs |  |  |  |  |
Restructuring and Related Cost [Abstract] |  |  |  |  |
Restructuring charges |  |  | 3.8 | $ 3.7 | $ 10.2
Rigid Industrial Packaging & Services |  |  |  |  |
Restructuring and Related Cost [Abstract] |  |  |  |  |
Total amounts expected to be incurred | 28.2 |  | 28.2 |  |
Restructuring charges |  |  | 17.3 |  |
Amounts remaining to be incurred | 10.9 |  | 10.9 |  |
Rigid Industrial Packaging & Services | Employee Separation Costs |  |  |  |  |
Restructuring and Related Cost [Abstract] |  |  |  |  |
Total amounts expected to be incurred | 22.7 |  | 22.7 |  |
Restructuring charges |  |  | 13.6 |  |
Amounts remaining to be incurred | 9.1 |  | 9.1 |  |
Rigid Industrial Packaging & Services | Other Restructuring Costs |  |  |  |  |
Restructuring and Related Cost [Abstract] |  |  |  |  |
Total amounts expected to be incurred | 5.5 |  | 5.5 |  |
Restructuring charges |  |  | 3.7 |  |
Amounts remaining to be incurred | 1.8 |  | 1.8 |  |
Flexible Products & Services |  |  |  |  |
Restructuring and Related Cost [Abstract] |  |  |  |  |
Total amounts expected to be incurred | 2.0 |  | 2.0 |  |
Restructuring charges |  |  | 0.9 |  |
Amounts remaining to be incurred | 1.1 |  | 1.1 |  |
Flexible Products & Services | Employee Separation Costs |  |  |  |  |
Restructuring and Related Cost [Abstract] |  |  |  |  |
Total amounts expected to be incurred | 0.8 |  | 0.8 |  |
Restructuring charges |  |  | 0.8 |  |
Amounts remaining to be incurred | 0.0 |  | 0.0 |  |
Flexible Products & Services | Other Restructuring Costs |  |  |  |  |
Restructuring and Related Cost [Abstract] |  |  |  |  |
Total amounts expected to be incurred | 1.2 |  | 1.2 |  |
Restructuring charges |  |  | 0.1 |  |
Amounts remaining to be incurred | 1.1 |  | 1.1 |  |
Paper Packaging & Services |  |  |  |  |
Restructuring and Related Cost [Abstract] |  |  |  |  |
Total amounts expected to be incurred | 0.4 |  | 0.4 |  |
Restructuring charges |  |  | 0.4 |  |
Amounts remaining to be incurred | 0.0 |  | 0.0 |  |
Paper Packaging & Services | Employee Separation Costs |  |  |  |  |
Restructuring and Related Cost [Abstract] |  |  |  |  |
Total amounts expected to be incurred | 0.4 |  | 0.4 |  |
Restructuring charges |  |  | 0.4 |  |
Amounts remaining to be incurred | $ 0.0 |  | $ 0.0 |  |

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- Definition Amount expected to be recognized in earnings for the specified restructuring cost. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 420 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SAB Topic 5.P.4(b)(1)) -URI http://asc.fasb.org/extlink&oid=115931487&loc=d3e140904-122747 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 420 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (b)(1) -URI http://asc.fasb.org/extlink&oid=6394359&loc=d3e17939-110869 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 420 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=6394359&loc=d3e17939-110869 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 420 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SAB Topic 5.P.4(d)) -URI http://asc.fasb.org/extlink&oid=115931487&loc=d3e140904-122747 + Details
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