Supplemental Guarantor Information - Unaudited Consolidating Statement of Operations (Details) (USD $)	3 Months Ended
	Dec. 31, 2013	Dec. 31, 2012
Condensed Financial Statements, Captions [Line Items]
Total revenue	$ 293,170,000	$ 246,902,000
Home construction and land sales expenses	238,469,000	210,614,000
Inventory impairments and option contract abandonments	31,000	204,000
Gross profit	54,670,000	36,084,000
Commissions	11,821,000	10,642,000
General and administrative expenses	28,410,000	26,328,000
Depreciation and amortization	2,907,000	2,715,000
Operating income (loss)	11,532,000	(3,601,000)
Equity in income of unconsolidated entities	319,000	36,000
Other (expense) income, net	(15,757,000)	(15,627,000)
(Loss) income from continuing operations before income taxes	(3,906,000)	(19,192,000)
(Benefit from) provision for income taxes	42,000	(253,000)
Equity in (loss) income of subsidiaries	0	0
Loss from continuing operations	(3,948,000)	(18,939,000)
Loss from discontinued operations, net of tax	(1,190,000)	(1,449,000)
Equity in income (loss) of subsidiaries	0	0
Net loss	(5,138,000)	(20,388,000)
Beazer Homes USA, Inc.
Condensed Financial Statements, Captions [Line Items]
Total revenue	0	0
Home construction and land sales expenses	7,135,000	8,475,000
Inventory impairments and option contract abandonments	0	0
Gross profit	(7,135,000)	(8,475,000)
Commissions	0	0
General and administrative expenses	0	0
Depreciation and amortization	0	0
Operating income (loss)	(7,135,000)	(8,475,000)
Equity in income of unconsolidated entities	0	0
Other (expense) income, net	(16,032,000)	(16,211,000)
(Loss) income from continuing operations before income taxes	(23,167,000)	(24,686,000)
(Benefit from) provision for income taxes	141,000	(437,000)
Equity in (loss) income of subsidiaries	19,360,000	5,310,000
Loss from continuing operations	(3,948,000)	(18,939,000)
Loss from discontinued operations, net of tax	0	0
Equity in income (loss) of subsidiaries	(1,190,000)	(1,449,000)
Net loss	(5,138,000)	(20,388,000)
Guarantor Subsidiaries
Condensed Financial Statements, Captions [Line Items]
Total revenue	293,170,000	246,902,000
Home construction and land sales expenses	231,414,000	202,356,000
Inventory impairments and option contract abandonments	31,000	204,000
Gross profit	61,725,000	44,342,000
Commissions	11,821,000	10,642,000
General and administrative expenses	28,383,000	26,301,000
Depreciation and amortization	2,907,000	2,715,000
Operating income (loss)	18,614,000	4,684,000
Equity in income of unconsolidated entities	319,000	36,000
Other (expense) income, net	278,000	580,000
(Loss) income from continuing operations before income taxes	19,211,000	5,300,000
(Benefit from) provision for income taxes	(117,000)	94,000
Equity in (loss) income of subsidiaries	0	0
Loss from continuing operations	19,328,000	5,206,000
Loss from discontinued operations, net of tax	(1,187,000)	(1,491,000)
Equity in income (loss) of subsidiaries	0	0
Net loss	18,141,000	3,715,000
Non-Guarantor Subsidiaries
Condensed Financial Statements, Captions [Line Items]
Total revenue	80,000	217,000
Home construction and land sales expenses	0	0
Inventory impairments and option contract abandonments	0	0
Gross profit	80,000	217,000
Commissions	0	0
General and administrative expenses	27,000	27,000
Depreciation and amortization	0	0
Operating income (loss)	53,000	190,000
Equity in income of unconsolidated entities	0	0
Other (expense) income, net	(3,000)	4,000
(Loss) income from continuing operations before income taxes	50,000	194,000
(Benefit from) provision for income taxes	18,000	90,000
Equity in (loss) income of subsidiaries	0	0
Loss from continuing operations	32,000	104,000
Loss from discontinued operations, net of tax	(3,000)	42,000
Equity in income (loss) of subsidiaries	0	0
Net loss	29,000	146,000
Consolidating Adjustments
Condensed Financial Statements, Captions [Line Items]
Total revenue	(80,000)	(217,000)
Home construction and land sales expenses	(80,000)	(217,000)
Inventory impairments and option contract abandonments	0	0
Gross profit	0	0
Commissions	0	0
General and administrative expenses	0	0
Depreciation and amortization	0	0
Operating income (loss)	0	0
Equity in income of unconsolidated entities	0	0
Other (expense) income, net	0	0
(Loss) income from continuing operations before income taxes	0	0
(Benefit from) provision for income taxes	0	0
Equity in (loss) income of subsidiaries	(19,360,000)	(5,310,000)
Loss from continuing operations	(19,360,000)	(5,310,000)
Loss from discontinued operations, net of tax	0	0
Equity in income (loss) of subsidiaries	1,190,000	1,449,000
Net loss	$ (18,170,000)	$ (3,861,000)