Revenue - Narrative (Details) - USD ($) $ in Millions	12 Months Ended
	Oct. 31, 2020	Oct. 31, 2019
Disaggregation of Revenue [Line Items]
Contract with customer, liability	$ 21.9	$ 22.0
Contract with customer, liability, revenue recognized	$ 10.6
Minimum | Product Revenue
Disaggregation of Revenue [Line Items]
Contract with customer, contract period	30 days
Minimum | Service Revenue
Disaggregation of Revenue [Line Items]
Contract with customer, contract period	12 months
Minimum | Warranty Revenue
Disaggregation of Revenue [Line Items]
Contract with customer, contract period	12 months
Maximum | Product Revenue
Disaggregation of Revenue [Line Items]
Contract with customer, contract period	120 days
Maximum | Service Revenue
Disaggregation of Revenue [Line Items]
Contract with customer, contract period	36 months
Maximum | Warranty Revenue
Disaggregation of Revenue [Line Items]
Contract with customer, contract period	24 months