Segment Information (Details) $ in Thousands		3 Months Ended
		Dec. 31, 2016 USD ($) segment state region	Dec. 31, 2015 USD ($)	Sep. 30, 2016 USD ($)
Segment Reporting [Abstract]
Number of states in which home building segments operate | state		13
Number of regions in which entity operates | segment		3
Number of homebuilding segments | region		3
Segment Reporting Information [Line Items]
Revenue		$ 339,241	$ 344,449
Operating income		1,275	9,148
Depreciation and amortization		2,677	2,991
Write-off of deposit on legacy land investment		2,700	0
Excess insurance recovery			3,600
Capital Expenditures		2,874	2,663
Total capital expenditures		2,874	2,663
Assets		2,188,143		$ 2,213,158
Operating Segments
Segment Reporting Information [Line Items]
Operating income		27,587	31,590
Depreciation and amortization		2,243	2,464
Corporate and unallocated
Segment Reporting Information [Line Items]
Operating income		(26,312)	(22,442)
Depreciation and amortization		434	527
Capital Expenditures		301	94
Assets	[1]	700,583		756,238
West Segment
Segment Reporting Information [Line Items]
Revenue		171,749	157,196
West Segment | Operating Segments
Segment Reporting Information [Line Items]
Operating income		21,015	16,786
Depreciation and amortization		1,248	1,218
Capital Expenditures		1,184	1,133
Assets		796,962		778,521
East Segment
Segment Reporting Information [Line Items]
Revenue		84,159	100,557
East Segment | Operating Segments
Segment Reporting Information [Line Items]
Operating income		1,557	4,147
Depreciation and amortization		529	797
Capital Expenditures		771	467
Assets		346,524		344,898
Southeast Segment
Segment Reporting Information [Line Items]
Revenue		83,333	86,696
Southeast Segment | Operating Segments
Segment Reporting Information [Line Items]
Operating income		5,015	10,657
Depreciation and amortization		466	449
Capital Expenditures		618	$ 969
Assets		$ 344,074		$ 333,501

[1] Primarily consists of cash and cash equivalents, restricted cash, deferred taxes, capitalized interest and indirects and other items that are not allocated to the segments.