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v3.20.2

Credit Facility - Interest Rate Swaps Narrative (Details) - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended | 12 Months Ended
--- | --- | --- | ---
Jul. 31, 2020 | Jul. 31, 2019 | Jul. 31, 2020 | Jul. 31, 2019 | Oct. 31, 2019
Line of Credit Facility [Line Items] |  |  |  |  |
Interest expense | $ 13.8 | $ 12.9 | $ 34.5 | $ 39.2 |
Interest rate cash flow hedge gain (loss) to be reclassified during next 12 months, net | (4.1) |  | (4.1) |  |
Tax to be reclassified during next 12 months | (1.4) |  | (1.4) |  |
Accumulated Gain (Loss), Cash Flow Hedge, Including Noncontrolling Interest |  |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |  |
Net gains from cash flow hedges recorded in accumulated other comprehensive loss, net of tax |  |  | (4.5) |  | $ 2.2
Tax related to amounts in accumulated other comprehensive loss |  |  | (1.3) |  | $ 1.2
Interest expense | (1.2) | 1.0 | (3.6) | 3.1 |
Interest expense, tax | $ 0.5 | $ 0.4 | $ 1.4 | $ 1.2 |

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