FINANCIAL INSTRUMENTS AND FAIR VALUE MEASUREMENTS - Estimated Fair Values for the Company's Senior Notes and Assets Held by Special Purpose Entities (Details) - Estimate of Fair Value Measurement - USD ($) $ in Millions	Jul. 31, 2021	Oct. 31, 2020
Estimated Fair Value Of Financial Instruments [Line Items]
Assets held by special purpose entities estimated fair value	$ 0.0	$ 50.9
Senior Notes due 2021
Estimated Fair Value Of Financial Instruments [Line Items]
Estimated fair value	0.0	242.0
Senior Notes due 2027
Estimated Fair Value Of Financial Instruments [Line Items]
Estimated fair value	$ 525.6	$ 524.4