Inventory - Results of Discounted Cash Flow Analysis (Details) $ in Thousands	12 Months Ended
	Sep. 30, 2014 USD ($) lot Community
Real Estate, Write-down or Reserve [Line Items]
Number of Communities Impaired | Community	2
Continuing Operations
Real Estate, Write-down or Reserve [Line Items]
Number of Communities Impaired | Community	2
Number of Lots Impaired | lot	180
Inventory Impairment, Results of Discounted Cash Flow Analysis	$ 5,321
Estimated Fair Value of Impaired Inventory at Period End	$ 14,379
Continuing Operations | West
Real Estate, Write-down or Reserve [Line Items]
Number of Communities Impaired | Community	2
Number of Lots Impaired | lot	180
Inventory Impairment, Results of Discounted Cash Flow Analysis	$ 4,948
Estimated Fair Value of Impaired Inventory at Period End	$ 14,379
Continuing Operations | Corporate and unallocated
Real Estate, Write-down or Reserve [Line Items]
Number of Communities Impaired | Community	0
Number of Lots Impaired | lot	0
Inventory Impairment, Results of Discounted Cash Flow Analysis	$ 373
Estimated Fair Value of Impaired Inventory at Period End	$ 0