Unaudited Condensed Consolidated Statements of Income (Loss) and Unaudited Comprehensive Income (Loss) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Dec. 31, 2017	Dec. 31, 2016
Income Statement [Abstract]
Total revenue	$ 372,489	$ 339,241
Home construction and land sales expenses	311,660	285,578
Gross profit	60,829	53,663
Commissions	14,356	13,323
General and administrative expenses	37,285	36,388
Depreciation and amortization	2,507	2,677
Operating income	6,681	1,275
Equity in (loss) income of unconsolidated entities	(101)	22
Loss on extinguishment of debt	25,904	0
Other expense, net	(3,145)	(5,196)
(Loss) income before income taxes	(22,469)	(3,899)
Expense (benefit) from income taxes	108,106	(2,540)
Loss from continuing operations	(130,575)	(1,359)
Loss from discontinued operations, net of tax	(372)	(70)
Net loss and comprehensive loss	$ (130,947)	$ (1,429)
Weighted average number of shares:
Basic and diluted (in shares)	32,055	31,893
Basic and diluted loss per share:
Continuing Operations (in dollars per share)	$ (4.07)	$ (0.04)
Discontinued Operations (in dollars per share)	(0.01)	0.00
Total (in dollars per shares)	$ (4.08)	$ (0.04)