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v3.20.1

ACQUISITIONS AND DIVESTITURES - Additional Information (Details) - USD ($) $ in Millions |  | 3 Months Ended | 6 Months Ended
--- | --- | --- | ---
Feb. 11, 2019 | Apr. 30, 2020 | Apr. 30, 2019 | Apr. 30, 2020 | Apr. 30, 2019
Business Acquisition [Line Items] |  |  |  |  |
Loss on disposal |  | $ 38.4 | $ 1.7 | $ 38.4 | $ 1.7
Paper Packaging & Services | 2020 Divestiture |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |
Proceeds from divestiture and deconsolidation |  | 85.0 |  |  |
Proceeds from divestiture and deconsolidation, adjustment |  | 3.4 |  |  |
Proceeds from divestiture and deconsolidation, net of adjustments |  | 81.6 |  |  |
Loss on sale of business |  | 38.4 |  | 38.4 |
Loss from goodwill |  | 35.6 |  | 35.6 |
Caraustar |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |
Payments to acquire business | $ 1,834.9 |  |  |  |
Goodwill | 752.5 | 729.3 |  | $ 729.3 |
Cash consideration | $ 1,834.9 | $ 1,834.9 |  |  |
Building | Minimum | Caraustar |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |
Useful life | 1 year |  |  |  |
Building | Maximum | Caraustar |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |
Useful life | 20 years |  |  |  |
Equipment | Minimum | Caraustar |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |
Useful life | 1 year |  |  |  |
Equipment | Maximum | Caraustar |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |
Useful life | 15 years |  |  |  |

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