GOODWILL AND OTHER INTANGIBLE ASSETS - Additional Information (Details) - USD ($) $ in Millions |
3 Months Ended | 6 Months Ended | |||
|---|---|---|---|---|---|
Apr. 30, 2019 |
Apr. 30, 2018 |
Apr. 30, 2019 |
Apr. 30, 2018 |
Feb. 11, 2019 |
|
| Goodwill [Line Items] | |||||
| Goodwill acquired | $ 752.5 | ||||
| Amortization of intangible assets | $ 14.7 | $ 3.9 | 18.4 | $ 7.7 | |
| Amortization expense, 2019 | 52.5 | 52.5 | |||
| Future amortization expense, 2020 | 66.5 | 66.5 | |||
| Future amortization expense, 2021 | 64.1 | 64.1 | |||
| Future amortization expense, 2022 | 56.8 | 56.8 | |||
| Future amortization expense, 2023 | $ 54.1 | 54.1 | |||
| Paper Packaging & Services | |||||
| Goodwill [Line Items] | |||||
| Goodwill acquired | $ 752.5 | ||||
| Caraustar | |||||
| Goodwill [Line Items] | |||||
| Intangibles | $ 717.1 | ||||