Supplemental Guarantor Information - Unaudited Consolidating Statements of Income (Loss) and Unaudited Comprehensive Income (Loss) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Mar. 31, 2017	Mar. 31, 2016	Mar. 31, 2017	Mar. 31, 2016
Condensed Financial Statements, Captions [Line Items]
Total revenue	$ 425,468	$ 385,607	$ 764,709	$ 730,056
Home construction and land sales expenses	357,788	324,216	643,366	609,727
Inventory impairments and abandonments	282	1,825	282	3,181
Gross profit	67,398	59,566	121,061	117,148
Commissions	16,632	14,582	29,955	28,356
General and administrative expenses	40,100	38,898	76,488	70,567
Depreciation and amortization	3,155	3,056	5,832	6,047
Operating income	7,511	3,030	8,786	12,178
Equity in income (loss) of unconsolidated entities	33	(51)	55	9
Loss on extinguishment of debt	(15,563)	(1,631)	(15,563)	(2,459)
Other (expense) income, net	(3,940)	(6,558)	(9,136)	(13,123)
Income (loss) before income taxes	(11,959)	(5,210)	(15,858)	(3,395)
Expense (benefit) from income taxes	(4,464)	(3,898)	(7,004)	(3,282)
Equity in income of subsidiaries	0	0	0	0
Loss from continuing operations	(7,495)	(1,312)	(8,854)	(113)
Income (loss) from discontinued operations, net of tax	(40)	78	(110)	(122)
Equity in loss of subsidiaries from discontinued operations	0	0	0	0
Net loss and comprehensive loss	(7,535)	(1,234)	(8,964)	(235)
Consolidating Adjustments
Condensed Financial Statements, Captions [Line Items]
Total revenue	(24)	(28)	(60)	(101)
Home construction and land sales expenses	(24)	(28)	(60)	(101)
Inventory impairments and abandonments	0	0	0	0
Gross profit	0	0	0	0
Commissions	0	0	0	0
General and administrative expenses	0		0	0
Depreciation and amortization	0	0	0	0
Operating income	0	0	0	0
Equity in income (loss) of unconsolidated entities	0	0	0	0
Loss on extinguishment of debt	0	0	0	0
Other (expense) income, net	0	0	0	0
Income (loss) before income taxes	0	0	0	0
Expense (benefit) from income taxes	0	0	0	0
Equity in income of subsidiaries	(17,455)	(11,192)	(29,422)	(23,875)
Loss from continuing operations	(17,455)	(11,192)	(29,422)	(23,875)
Income (loss) from discontinued operations, net of tax	0	0	0	0
Equity in loss of subsidiaries from discontinued operations	40	(78)	110	122
Net loss and comprehensive loss	(17,415)	(11,270)	(29,312)	(23,753)
Beazer Homes USA, Inc.
Condensed Financial Statements, Captions [Line Items]
Total revenue	0	0	0	0
Home construction and land sales expenses	19,819	16,073	35,463	29,440
Inventory impairments and abandonments	0	84	0	84
Gross profit	(19,819)	(16,157)	(35,463)	(29,524)
Commissions	0	0	0	0
General and administrative expenses	0	0	0	0
Depreciation and amortization	0	0	0	0
Operating income	(19,819)	(16,157)	(35,463)	(29,524)
Equity in income (loss) of unconsolidated entities	0	0	0	0
Loss on extinguishment of debt	(15,563)	(1,631)	(15,563)	(2,459)
Other (expense) income, net	(4,046)	(6,633)	(9,298)	(14,065)
Income (loss) before income taxes	(39,428)	(24,421)	(60,324)	(46,048)
Expense (benefit) from income taxes	(14,478)	(11,917)	(22,048)	(22,060)
Equity in income of subsidiaries	17,455	11,192	29,422	23,875
Loss from continuing operations	(7,495)	(1,312)	(8,854)	(113)
Income (loss) from discontinued operations, net of tax	0	0	0	0
Equity in loss of subsidiaries from discontinued operations	(40)	78	(110)	(122)
Net loss and comprehensive loss	(7,535)	(1,234)	(8,964)	(235)
Guarantor Subsidiaries
Condensed Financial Statements, Captions [Line Items]
Total revenue	425,468	385,607	764,709	730,056
Home construction and land sales expenses	337,993	308,171	607,963	580,388
Inventory impairments and abandonments	282	1,741	282	3,097
Gross profit	87,193	75,695	156,464	146,571
Commissions	16,632	14,582	29,955	28,356
General and administrative expenses	40,071	38,867	76,436	70,509
Depreciation and amortization	3,155	3,056	5,832	6,047
Operating income	27,335	19,190	44,241	41,659
Equity in income (loss) of unconsolidated entities	33	(51)	55	9
Loss on extinguishment of debt	0	0	0	0
Other (expense) income, net	114	76	171	944
Income (loss) before income taxes	27,482	19,215	44,467	42,612
Expense (benefit) from income taxes	10,019	8,020	15,044	18,762
Equity in income of subsidiaries	0	0	0	0
Loss from continuing operations	17,463	11,195	29,423	23,850
Income (loss) from discontinued operations, net of tax	(34)	81	(101)	(116)
Equity in loss of subsidiaries from discontinued operations		0	0	0
Net loss and comprehensive loss	17,429	11,276	29,322	23,734
Non-Guarantor Subsidiaries
Condensed Financial Statements, Captions [Line Items]
Total revenue	24	28	60	101
Home construction and land sales expenses	0	0	0	0
Inventory impairments and abandonments	0	0	0	0
Gross profit	24	28	60	101
Commissions	0	0	0	0
General and administrative expenses	29	31	52	58
Depreciation and amortization	0	0	0	0
Operating income	(5)	(3)	8	43
Equity in income (loss) of unconsolidated entities	0	0	0	0
Loss on extinguishment of debt	0	0	0	0
Other (expense) income, net	(8)	(1)	(9)	(2)
Income (loss) before income taxes	(13)	(4)	(1)	41
Expense (benefit) from income taxes	(5)	(1)	0	16
Equity in income of subsidiaries	0	0	0	0
Loss from continuing operations	(8)	(3)	(1)	25
Income (loss) from discontinued operations, net of tax	(6)	(3)	(9)	(6)
Equity in loss of subsidiaries from discontinued operations	0	0	0	0
Net loss and comprehensive loss	$ (14)	$ (6)	$ (10)	$ 19