Supplemental Guarantor Information - Consolidating Statement of Operations (Details) (USD $)	3 Months Ended								12 Months Ended
	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2012	Sep. 30, 2012	Jun. 30, 2012	Mar. 31, 2012	Dec. 31, 2011	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2011
Condensed Financial Statements, Captions [Line Items]
Total revenue					$ 370,931,000	$ 254,555,000	$ 191,643,000	$ 188,548,000	$ 1,287,577,000	$ 1,005,677,000	$ 742,405,000
Home construction and land sales expenses									1,070,814,000	888,379,000	661,851,000
Inventory impairments and option contract abandonments	404,000	0	2,025,000	204,000	1,718,000	5,819,000	1,170,000	3,503,000	2,633,000	12,210,000	32,459,000
Gross profit	80,046,000	54,115,000	43,885,000	36,084,000	41,398,000	21,231,000	20,190,000	22,269,000	214,130,000	105,088,000	48,095,000
Commissions									52,922,000	43,585,000	32,711,000
General and administrative expenses									121,163,000	110,051,000	137,376,000
Depreciation and amortization									12,784,000	13,510,000	10,253,000
Operating loss	22,079,000	8,472,000	311,000	(3,601,000)	(6,510,000)	(21,155,000)	(17,694,000)	(16,699,000)	27,261,000	(62,058,000)	(132,245,000)
Equity in income (loss) of unconsolidated entities									(113,000)	304,000	560,000
(Loss) gain on extinguishment of debt	(998,000)	0	(3,638,000)	0	(42,350,000)	0	(2,747,000)	0	(4,636,000)	(45,097,000)	(2,909,000)
Other (loss) income, net									(58,165,000)	(69,119,000)	(62,224,000)
Loss from continuing operations before income taxes									(35,653,000)	(175,970,000)	(196,818,000)
(Benefit from) provisions for income taxes									(3,489,000)	(40,347,000)	3,366,000
Equity in loss of subsidiaries									0	0	0
Loss from continuing operations	11,328,000	(5,442,000)	(19,111,000)	(18,939,000)	(60,399,000)	(38,056,000)	(37,866,000)	698,000	(32,164,000)	(135,623,000)	(200,184,000)
Loss from discontinued operations, net of tax									(1,704,000)	(9,703,000)	(4,675,000)
Equity in loss of subsidiaries									0	0	0
Net loss									(33,868,000)	(145,326,000)	(204,859,000)
Beazer Homes USA, Inc.
Condensed Financial Statements, Captions [Line Items]
Total revenue									0	0	0
Home construction and land sales expenses									41,246,000	60,952,000	46,382,000
Inventory impairments and option contract abandonments									0	275,000	1,907,000
Gross profit									(41,246,000)	(61,227,000)	(48,289,000)
Commissions									0	0	0
General and administrative expenses									0	0	0
Depreciation and amortization									0	0	0
Operating loss									(41,246,000)	(61,227,000)	(48,289,000)
Equity in income (loss) of unconsolidated entities									0	0	0
(Loss) gain on extinguishment of debt									(4,636,000)	(45,097,000)	(2,909,000)
Other (loss) income, net									(59,458,000)	(71,474,000)	(73,440,000)
Loss from continuing operations before income taxes									(105,340,000)	(177,798,000)	(124,638,000)
(Benefit from) provisions for income taxes									(10,765,000)	(68,026,000)	(46,540,000)
Equity in loss of subsidiaries									62,411,000	(25,851,000)	(122,086,000)
Loss from continuing operations									(32,164,000)	(135,623,000)	(200,184,000)
Loss from discontinued operations, net of tax									0	0	0
Equity in loss of subsidiaries									(1,704,000)	(9,703,000)	(4,675,000)
Net loss									(33,868,000)	(145,326,000)	(204,859,000)
Guarantor Subsidiaries
Condensed Financial Statements, Captions [Line Items]
Total revenue									1,287,577,000	1,005,677,000	742,405,000
Home construction and land sales expenses									1,030,304,000	828,368,000	616,571,000
Inventory impairments and option contract abandonments									2,633,000	11,935,000	30,552,000
Gross profit									254,640,000	165,374,000	95,282,000
Commissions									52,922,000	43,585,000	32,711,000
General and administrative expenses									121,035,000	109,937,000	137,261,000
Depreciation and amortization									12,784,000	13,510,000	10,253,000
Operating loss									67,899,000	(1,658,000)	(84,943,000)
Equity in income (loss) of unconsolidated entities									(113,000)	304,000	560,000
(Loss) gain on extinguishment of debt									0	0	0
Other (loss) income, net									1,278,000	2,328,000	11,145,000
Loss from continuing operations before income taxes									69,064,000	974,000	(73,238,000)
(Benefit from) provisions for income taxes									7,058,000	27,380,000	49,536,000
Equity in loss of subsidiaries									0	0	0
Loss from continuing operations									62,006,000	(26,406,000)	(122,774,000)
Loss from discontinued operations, net of tax									(1,736,000)	(9,695,000)	(4,672,000)
Equity in loss of subsidiaries									0	0	0
Net loss									60,270,000	(36,101,000)	(127,446,000)
Non-Guarantor Subsidiaries
Condensed Financial Statements, Captions [Line Items]
Total revenue									736,000	941,000	1,102,000
Home construction and land sales expenses									0	0	0
Inventory impairments and option contract abandonments									0	0	0
Gross profit									736,000	941,000	1,102,000
Commissions									0	0	0
General and administrative expenses									128,000	114,000	115,000
Depreciation and amortization									0	0	0
Operating loss									608,000	827,000	987,000
Equity in income (loss) of unconsolidated entities									0	0	0
(Loss) gain on extinguishment of debt									0	0	0
Other (loss) income, net									15,000	27,000	71,000
Loss from continuing operations before income taxes									623,000	854,000	1,058,000
(Benefit from) provisions for income taxes									218,000	299,000	370,000
Equity in loss of subsidiaries									0	0	0
Loss from continuing operations									405,000	555,000	688,000
Loss from discontinued operations, net of tax									32,000	(8,000)	(3,000)
Equity in loss of subsidiaries									0	0	0
Net loss									437,000	547,000	685,000
Consolidating Adjustments
Condensed Financial Statements, Captions [Line Items]
Total revenue									(736,000)	(941,000)	(1,102,000)
Home construction and land sales expenses									(736,000)	(941,000)	(1,102,000)
Inventory impairments and option contract abandonments									0	0	0
Gross profit									0	0	0
Commissions									0	0	0
General and administrative expenses									0	0	0
Depreciation and amortization									0	0	0
Operating loss									0	0	0
Equity in income (loss) of unconsolidated entities									0	0	0
(Loss) gain on extinguishment of debt									0	0	0
Other (loss) income, net									0	0	0
Loss from continuing operations before income taxes									0	0	0
(Benefit from) provisions for income taxes									0	0	0
Equity in loss of subsidiaries									(62,411,000)	25,851,000	122,086,000
Loss from continuing operations									(62,411,000)	25,851,000	122,086,000
Loss from discontinued operations, net of tax									0	0	0
Equity in loss of subsidiaries									1,704,000	9,703,000	4,675,000
Net loss									$ (60,707,000)	$ 35,554,000	$ 126,761,000