Summary of Significant Accounting Policies and Related Data - Accounts Payable (Details) $ in Millions	12 Months Ended
	Oct. 31, 2019 USD ($) payment_oblibations_financed	Oct. 31, 2018 USD ($)
Accounting Policies [Abstract]
Minimum number of payment obligations to be financed | payment_oblibations_financed	1
Outstanding payment obligations placed on the accounts payable tracking system | $	$ 46.7	$ 33.0