Fair Value Disclosures Fair Value Disclosures (Level 4 Inv Impair inputs) (Details 3) (Operating communities [Member], USD $) In Thousands, unless otherwise specified	3 Months Ended
	Jan. 31, 2015	Oct. 31, 2014	Jul. 31, 2014	Apr. 30, 2014	Jan. 31, 2014
Minimum [Member]
Fair value inputs, assets, quantitative information [Line Items]
Average selling price	$ 289	$ 337	$ 698	$ 634	$ 388
Sales Pace (in ones)	1	7	10	4	21
Fair Value Inputs, Discount Rate	13.50%	12.50%	15.90%	12.00%	16.60%
Maximum [Member]
Fair value inputs, assets, quantitative information [Line Items]
Average selling price	$ 680	$ 902	$ 1,233	$ 760	$ 405
Sales Pace (in ones)	7	23	22	7	23
Fair Value Inputs, Discount Rate	16.00%	16.50%	15.90%	15.30%	16.60%