Commitments and Contingencies (Details Textuals 2) - USD ($)	3 Months Ended	9 Months Ended
	Jul. 31, 2020	Jul. 31, 2020	Nov. 01, 2019	Oct. 31, 2019
Lessee, Lease, Description [Line Items]
Operating Lease, Right-of-Use Asset	$ 106,049,000	$ 106,049,000		$ 0
Operating Lease, Liability	125,231,000	125,231,000		$ 0
Operating Lease, Payments	4,200,000	12,300,000
Lease, Cost	6,100,000	18,900,000
Variable Lease, Cost	700,000	2,200,000
Short-term Lease, Cost	$ 1,000,000.0	$ 3,000,000.0
Operating Lease, Weighted Average Remaining Lease Term	9 years	9 years
Operating Lease, Weighted Average Discount Rate, Percent	4.10%	4.10%
Accounting Standards Update 2016-02 [Member]
Lessee, Lease, Description [Line Items]
Operating Lease, Right-of-Use Asset	$ 106,000,000.0	$ 106,000,000.0	$ 114,500,000
Operating Lease, Liability			$ 118,500,000
Land [Member]
Lessee, Lease, Description [Line Items]
Operating Lease, Weighted Average Remaining Lease Term	94 years 1 month 6 days	94 years 1 month 6 days
Operating Lease, Weighted Average Discount Rate, Percent	4.50%	4.50%