Inventory - Schedule of Discounted Cash Flow Analysis (Details) $ in Thousands	3 Months Ended	6 Months Ended
	Mar. 31, 2016 USD ($) lot Community	Mar. 31, 2016 USD ($) lot Community
Real Estate, Write-down or Reserve [Line Items]
Number of Communities Impaired | Community	1	1
Discounted Cash Flow Analyses, Number of Lots Impaired | lot	34	34
Inventory Impairment, Results of Discounted Cash Flow Analysis	$ 1,825	$ 1,825
Estimated Fair Value of Impaired Inventory	$ 5,518	$ 5,518
Continuing Operations | Corporate and unallocated
Real Estate, Write-down or Reserve [Line Items]
Number of Communities Impaired | Community	0	0
Discounted Cash Flow Analyses, Number of Lots Impaired | lot	0	0
Inventory Impairment, Results of Discounted Cash Flow Analysis	$ 312	$ 312
Estimated Fair Value of Impaired Inventory	$ 0	$ 0
Continuing Operations | West Segment
Real Estate, Write-down or Reserve [Line Items]
Number of Communities Impaired | Community	1
Discounted Cash Flow Analyses, Number of Lots Impaired | lot	34
Inventory Impairment, Results of Discounted Cash Flow Analysis	$ 1,513
Estimated Fair Value of Impaired Inventory	$ 5,518
Continuing Operations | West Segment | Operating Segments
Real Estate, Write-down or Reserve [Line Items]
Number of Communities Impaired | Community		1
Discounted Cash Flow Analyses, Number of Lots Impaired | lot		34
Inventory Impairment, Results of Discounted Cash Flow Analysis		$ 1,513
Estimated Fair Value of Impaired Inventory		$ 5,518