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Financial Instruments and Fair Value Measurements (Tables) | 12 Months Ended
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Oct. 31, 2018
Fair Value Disclosures [Abstract] |
Recurring Fair Value Measurements | The following table presents the fair value of those assets and (liabilities) measured on a recurring basis as of October 31, 2018 and 2017:
| October 31, 2018 |  |
| Fair Value Measurement |  | Balance Sheet Location
(in millions) | Level 1 |  | Level 2 |  | Level 3 |  | Total |  |
Interest rate derivatives | $ | — |  |  | $ | 16.5 |  |  | $ | — |  |  | $ | 16.5 |  |  | Other long-term assets and other current assets
Foreign exchange hedges | — |  |  | 2.6 |  |  | — |  |  | 2.6 |  |  | Other current assets
Foreign exchange hedges | — |  |  | (0.7 | ) |  | — |  |  | (0.7 | ) |  | Other current liabilities
Insurance annuity | — |  |  | — |  |  | 20.4 |  |  | 20.4 |  |  | Other long-term assets
Cross currency swap | — |  |  | 5.2 |  |  | — |  |  | 5.2 |  |  | Other long-term assets and other current assets
Total | $ | — |  |  | $ | 23.6 |  |  | $ | 20.4 |  |  | $ | 44.0 |  |  |
| October 31, 2017 |  |
| Fair Value Measurement |  | Balance Sheet Location
(in millions) | Level 1 |  | Level 2 |  | Level 3 |  | Total |  |
Interest rate derivatives | $ | — |  |  | $ | 8.9 |  |  | $ | — |  |  | $ | 8.9 |  |  | Other long-term assets and other current assets
Foreign exchange hedges | — |  |  | 0.1 |  |  | — |  |  | 0.1 |  |  | Other current assets
Foreign exchange hedges | — |  |  | (0.6 | ) |  | — |  |  | (0.6 | ) |  | Other current liabilities
Insurance annuity | — |  |  | — |  |  | 20.7 |  |  | 20.7 |  |  | Other long-term assets
Total | $ | — |  |  | $ | 8.4 |  |  | $ | 20.7 |  |  | $ | 29.1 |  |  |
Estimated Fair Values for the Company's Senior Notes and Assets Held by Special Purpose Entities | The following table presents the estimated fair values for the Company’s Senior Notes and Assets held by special purpose entities:
(in millions) | October 31, 2018 |  | October 31, 2017
Senior Notes due 2019 estimated fair value | $ | 257.4 |  |  | $ | 272.0 |
Senior Notes due 2021 estimated fair value | 263.4 |  |  | 281.0 |
Assets held by special purpose entities estimated fair value | 51.6 |  |  | 52.5 |
Summary of Quantitative about Significant Unobservable Inputs Used to Determine Fair Value of Impairment of Long-Lived Assets Held and Used | The following table presents quantitative information about the significant unobservable inputs used to determine the fair value of the impairment of long-lived assets held and used and net assets held for sale for the twelve months ended October 31, 2018 and 2017:
| Quantitative Information about Level 3 Fair Value Measurements
(in millions) | Fair Value of Impairment |  | Valuation Technique |  | Unobservable Input |  | Range of Input Values
October 31, 2018 |  |  |  |  |  |  |
Impairment of Net Assets Held for Sale | $ | 0.7 |  |  | Broker Quote / Indicative Bids |  | Indicative Bids |  | N/A
Impairment of Long Lived Assets | 7.6 |  |  | Sales Value |  | Sales Value |  | N/A
Total | $ | 8.3 |  |  |  |  |  |  |
October 31, 2017 |  |  |  |  |  |  |
Impairment of Net Assets Held for Sale | $ | 5.6 |  |  | Broker Quote / Indicative Bids |  | Indicative Bids |  | N/A
Impairment of Long Lived Assets | 2.2 |  |  | Sales Value |  | Sales Value |  | N/A
Total | $ | 7.8 |  |  |  |  |  |  |

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- Definition Tabular disclosure of input and valuation technique used to measure fair value and change in valuation approach and technique for each separate class of asset and liability measured on recurring and nonrecurring basis. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (bbb) -URI http://asc.fasb.org/extlink&oid=99377789&loc=d3e19207-110258 + Details
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- Definition Tabular disclosure of assets and liabilities, including [financial] instruments measured at fair value that are classified in stockholders' equity, if any, that are measured at fair value on a recurring basis. The disclosures contemplated herein include the fair value measurements at the reporting date by the level within the fair value hierarchy in which the fair value measurements in their entirety fall, segregating fair value measurements using quoted prices in active markets for identical assets (Level 1), significant other observable inputs (Level 2), and significant unobservable inputs (Level 3). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=99377789&loc=d3e19190-110258 + Details
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