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Goodwill and Other Intangible Assets - Additional Information (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Oct. 31, 2020 | Oct. 31, 2019 | Oct. 31, 2018
Goodwill [Line Items] |  |  |
Goodwill acquired | $ 0.0 | $ 748.9 |
Accumulated goodwill impairment loss | 63.3 | 63.3 | $ 63.3
Increase (decrease) in gross intangible assets | 0.4 |  |
Intangible assets adjustments | 0.9 |  |
Amortization expense | 69.1 | 53.2 | $ 15.2
Future amortization expense, 2020 | 67.2 |  |
Future amortization expense, 2021 | 59.1 |  |
Future amortization expense, 2022 | 56.6 |  |
Future amortization expense, 2023 | 53.3 |  |
Future amortization expense, 2024 | 50.8 |  |
Value of infinite lived intangible trademarks and trade names related to Blagden Express, Closed-loop, Box Board and Fustiplast | 13.5 |  |
Impairment of intangible assets, finite-lived | 9.9 |  |
Goodwill adjustments | 18.5 | 0.0 |
Tholu B.V. |  |  |
Goodwill [Line Items] |  |  |
Increase intangible assets | 5.3 |  |
Caraustar |  |  |
Goodwill [Line Items] |  |  |
Increase intangible assets | 5.9 |  |
Paper Packaging & Services |  |  |
Goodwill [Line Items] |  |  |
Goodwill acquired | 0.0 |  |
Goodwill adjustments | 2.8 |  |
Rigid Industrial Packaging & Services |  |  |
Goodwill [Line Items] |  |  |
Goodwill acquired | 0.0 | 22.3 |
Accumulated goodwill impairment loss | 13.0 |  |
Goodwill adjustments | $ 1.1 | $ 0.0 |

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- Definition The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=121586364&loc=d3e3602-108585 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(2) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6388964&loc=d3e16225-109274 + Details
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