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LONG-TERM DEBT - Summary of Long-Term Debt (Details) - USD ($) $ in Millions | Jan. 31, 2021 | Oct. 31, 2020
--- | --- | ---
Debt Instrument [Line Items] |  |
Long-term debt | $ 2,505.3 | $ 2,469.7
Less: current portion | 133.6 | 123.1
Less: deferred financing costs | 12.1 | 11.1
Long-term debt, net | 2,359.6 | 2,335.5
2019 Credit Agreement |  |
Debt Instrument [Line Items] |  |
Long-term debt | 1,462.5 |
Term Loan | 2019 Credit Agreement |  |
Debt Instrument [Line Items] |  |
Long-term debt | 1,365.8 | 1,429.8
Domestic Line of Credit |  |
Debt Instrument [Line Items] |  |
Long-term debt | 305.4 | 310.0
Revolving Credit Facility | 2019 Credit Agreement |  |
Debt Instrument [Line Items] |  |
Long-term debt | 96.7 | 0.0
Less: current portion | 133.6 |
Long-term debt, net | 1,328.9 |
Senior Notes | Senior Notes due 2027 |  |
Debt Instrument [Line Items] |  |
Long-term debt | 495.3 | 495.1
Senior Notes | Senior Notes due 2021 |  |
Debt Instrument [Line Items] |  |
Long-term debt | $ 242.1 | $ 234.8

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