Financial Instruments and Fair Value Measurements - Summary of Quantitative about Significant Unobservable Inputs Used to Determine Fair Value of Impairment of Long-Lived Assets Held and Used (Details) - USD ($) $ in Millions	3 Months Ended		12 Months Ended
	Oct. 31, 2020	Oct. 31, 2019	Oct. 31, 2020	Oct. 31, 2019	Oct. 31, 2018
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Impairment of Net Assets Held for Sale					$ 0.7
Impairment of Long Lived Assets			$ 18.5	$ 5.7	7.6
Total	$ 1.6	$ 5.7	18.5	7.8	$ 8.3
Land and building | Indicative Bids | Level 3
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Impairment of Net Assets Held for Sale				2.1
Machinery and equipment | Discounted Cash Flows, Indicative Bids | Level 3
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Impairment of Long Lived Assets			$ 18.5
Machinery and equipment | Sales Value | Level 3
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Impairment of Long Lived Assets				$ 5.7