Loans Payable, Senior Notes, and Mortgage Company Loan Facility Credit Facility (Details Textual 2) - USD ($) $ in Thousands	12 Months Ended
	Oct. 31, 2017	Dec. 18, 2017	Oct. 31, 2016
Line of Credit Facility [Line Items]
Line of Credit Facility, Maximum Borrowing Capacity	$ 1,680,900
Long-term line of credit	1,199,600
May 2016 Revolving Credit Facility [Member]
Line of Credit Facility [Line Items]
Line of Credit Facility, Maximum Borrowing Capacity	$ 1,295,000
Line of Credit Facility, term of contract	5 years
Line of Credit Facility, Expiration Date	May 19, 2021
Line of credit facility, available for letters of credit	50.00%
Line of Credit Facility Contingent Increase To Maximum Borrowing Capacity	$ 2,000,000
Debt Instrument, Interest Rate, Effective Percentage	2.74%
Maximum Permissible Leverage Ratio	175.00%
Minimum Net Worth Required for Compliance	$ 2,630,000
Existing Leverage Ratio	.58
Tangible Net Worth	$ 4,490,000
Ability to repurchase common stock	2,290,000
Long-term line of credit	0		$ 250,000
Letters of Credit Outstanding, Amount	$ 140,100
Guarantor Subsidiaries [Member]
Line of Credit Facility [Line Items]
Subsidiary of Company, Ownership Percentage by Parent	100.00%
Subsequent Event [Member] | May 2016 Revolving Credit Facility [Member]
Line of Credit Facility [Line Items]
Long-term line of credit		$ 150,000