Commitments and Contingencies (Details Textuals 2) - USD ($)	3 Months Ended	6 Months Ended
	Apr. 30, 2020	Apr. 30, 2020	Nov. 01, 2019	Oct. 31, 2019
Lessee, Lease, Description [Line Items]
Operating Lease, Right-of-Use Asset	$ 109,458,000	$ 109,458,000		$ 0
Operating Lease, Liability	127,754,000	127,754,000		$ 0
Operating Lease, Payments	4,300,000	8,200,000
Lease, Cost	6,400,000	12,800,000
Variable Lease, Cost	900,000	1,500,000
Short-term Lease, Cost	$ 1,000,000.0	$ 2,000,000.0
Operating Lease, Weighted Average Remaining Lease Term	9 years	9 years
Operating Lease, Weighted Average Discount Rate, Percent	4.00%	4.00%
Accounting Standards Update 2016-02 [Member]
Lessee, Lease, Description [Line Items]
Operating Lease, Right-of-Use Asset	$ 109,500,000	$ 109,500,000	$ 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	94 years
Operating Lease, Weighted Average Discount Rate, Percent	4.50%	4.50%