DOCUMENT INFORMATION	12 Months Ended
	Oct. 31, 2020
Document Information [Line Items]
Amendment Flag	false
Document Type	10-K
Document Annual Report	true
Document Period End Date	Oct. 31, 2020
Document Fiscal Period Focus	FY
Document Transition Report	false
Document Fiscal Year Focus	2020
ICFR Auditor Attestation Flag	true