Acquisition Acquisition (Detail Textuals) (USD $)	6 Months Ended	3 Months Ended			6 Months Ended	9 Months Ended				9 Months Ended
	Jul. 31, 2014	Jul. 31, 2014 Shapell [Member]	Jan. 31, 2014 Shapell [Member]	Jul. 31, 2013 Shapell [Member]	Jul. 31, 2014 Shapell [Member]	Jul. 31, 2014 Shapell [Member]	Jul. 31, 2013 Shapell [Member]	Feb. 04, 2014 Shapell [Member]	Jul. 31, 2014 Revolving Credit Facility [Member]	Jul. 31, 2014 Revolving Credit Facility [Member] Shapell [Member]	Feb. 03, 2014 Revolving Credit Facility [Member] Shapell [Member]	Feb. 03, 2014 Five year term note [Member] Shapell [Member]
Business Acquisition [Line Items]
Business Acquisition, Effective Date of Acquisition						Feb. 04, 2014
Business Acquisition, Name of Acquired Entity						Shapell Industries, Inc.
Business Acquisition, Date of Acquisition Agreement						Nov. 06, 2013
Payments to Acquire Businesses, Gross		$ 1,600,000,000
Number of home sites included in acquisition		4,950
Business acquisition, number of selling communities		11
Number of Homes to be Delivered	4,204							126
Sales Value of Outstanding Deliver Homes	3,100,000,000							105,300,000
Line of Credit Facility, Amount Outstanding									0		370,000,000
Line of Credit Facility, Maximum Borrowing Capacity									1,035,000,000
Long-term Debt												485,000,000
Proceeds from (Payments for) Other Financing Activities			815,700,000
Repayments of Lines of Credit										370,000,000
Business Combination, Acquisition Related Costs	5,200,000			0		6,000,000	0
Business Combination, Pro Forma Information, Revenue of Acquiree since Acquisition Date, Actual					199,600,000
Business Combination, Pro Forma Information, Earnings or Loss of Acquiree since Acquisition Date, Actual					$ 14,000,000