Inventory Inventory (Details 2) (USD $) In Thousands, unless otherwise specified	3 Months Ended					12 Months Ended
	Jan. 31, 2014	Oct. 31, 2013	Jul. 31, 2013	Apr. 30, 2013	Jan. 31, 2013	Oct. 31, 2013
Schedule Of Inventory [Line Items]
Inventory Write-down	$ 1,982				$ 709
Land controlled for future communities [Member]
Schedule Of Inventory [Line Items]
Inventory Write-down	682				9
Land Owned for Future Communities [Member]
Schedule Of Inventory [Line Items]
Inventory Write-down	0				0
Operating communities [Member]
Schedule Of Inventory [Line Items]
Inventory Write-down	$ 1,300	$ 2,200	$ 100	$ 340	$ 700	$ 3,340