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FINANCIAL INSTRUMENTS AND FAIR VALUE MEASUREMENTS - Estimated Fair Values for the Company's Senior Notes and Assets Held by Special Purpose Entities (Detail) - USD ($) $ in Millions	Jan. 31, 2019	Oct. 31, 2018
Estimated Fair Value Of Financial Instruments [Line Items]
Assets held by special purpose entities	$ 50.9	$ 50.9
Estimate of Fair Value Measurement
Estimated Fair Value Of Financial Instruments [Line Items]
Assets held by special purpose entities	51.8	51.6
Senior Notes due 2019 | Estimate of Fair Value Measurement
Estimated Fair Value Of Financial Instruments [Line Items]
Estimated fair value	255.3	257.4
Senior Notes due 2021 | Estimate of Fair Value Measurement
Estimated Fair Value Of Financial Instruments [Line Items]
Estimated fair value	$ 261.2	$ 263.4

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Estimated Fair Value Of Financial Instruments [Line Items]

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Fair value portion of debt instrument payable, including, but not limited to, notes payable and loans payable.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 825
-SubTopic 10
-Section 50
-Paragraph 10
-URI http://asc.fasb.org/extlink&oid=109250915&loc=d3e13433-108611

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The carrying amount of the consolidated Variable Interest Entity's assets included in the reporting entity's statement of financial position.

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 810
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-Section 50
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