Supplemental Guarantor Information - Unaudited Consolidating Statements of Income (Loss) and Unaudited Comprehensive Income (Loss) - USD ($) $ in Thousands	3 Months Ended
	Dec. 31, 2016	Dec. 31, 2015
Condensed Financial Statements, Captions [Line Items]
Total revenue	$ 339,241	$ 344,449
Home construction and land sales expenses	285,578	285,511
Inventory impairments and abandonments	0	1,356
Gross profit	53,663	57,582
Commissions	13,323	13,774
General and administrative expenses	36,388	31,669
Depreciation and Amortization	2,677	2,991
Operating income	1,275	9,148
Equity in income of unconsolidated entities	22	60
Loss on extinguishment of debt	0	(828)
Other (expense) income, net	(5,196)	(6,565)
Income (loss) before income taxes	(3,899)	1,815
Expense (benefit) from income taxes	(2,540)	616
Equity in income of subsidiaries	0	0
Income (loss) from continuing operations	(1,359)	1,199
Loss from discontinued operations, net of tax	(70)	(200)
Equity in loss of subsidiaries from discontinued operations	0	0
Net income (loss) and comprehensive income (loss)	(1,429)	999
Consolidating Adjustments
Condensed Financial Statements, Captions [Line Items]
Total revenue	(36)	(73)
Home construction and land sales expenses	(36)	(73)
Inventory impairments and abandonments		0
Gross profit	0	0
Commissions	0	0
General and administrative expenses	0
Depreciation and Amortization	0	0
Operating income	0	0
Equity in income of unconsolidated entities	0	0
Loss on extinguishment of debt		0
Other (expense) income, net	0	0
Income (loss) before income taxes	0	0
Expense (benefit) from income taxes	0	0
Equity in income of subsidiaries	(11,968)	(12,683)
Income (loss) from continuing operations	(11,968)	(12,683)
Loss from discontinued operations, net of tax	0	0
Equity in loss of subsidiaries from discontinued operations	70	200
Net income (loss) and comprehensive income (loss)	(11,898)	(12,483)
Beazer Homes USA, Inc.
Condensed Financial Statements, Captions [Line Items]
Total revenue	0	0
Home construction and land sales expenses	15,644	13,367
Inventory impairments and abandonments		0
Gross profit	(15,644)	(13,367)
Commissions	0	0
General and administrative expenses	0	0
Depreciation and Amortization	0	0
Operating income	(15,644)	(13,367)
Equity in income of unconsolidated entities	0	0
Loss on extinguishment of debt		(828)
Other (expense) income, net	(5,252)	(7,432)
Income (loss) before income taxes	(20,896)	(21,627)
Expense (benefit) from income taxes	(7,569)	(10,143)
Equity in income of subsidiaries	11,968	12,683
Income (loss) from continuing operations	(1,359)	1,199
Loss from discontinued operations, net of tax	(70)	0
Equity in loss of subsidiaries from discontinued operations	0	(200)
Net income (loss) and comprehensive income (loss)	(1,429)	999
Guarantor Subsidiaries
Condensed Financial Statements, Captions [Line Items]
Total revenue	339,241	344,449
Home construction and land sales expenses	269,970	272,217
Inventory impairments and abandonments		1,356
Gross profit	69,271	70,876
Commissions	13,323	13,774
General and administrative expenses	36,365	31,642
Depreciation and Amortization	2,677	2,991
Operating income	16,906	22,469
Equity in income of unconsolidated entities	22	60
Loss on extinguishment of debt		0
Other (expense) income, net	57	868
Income (loss) before income taxes	16,985	23,397
Expense (benefit) from income taxes	5,025	10,742
Equity in income of subsidiaries	0	0
Income (loss) from continuing operations	11,960	12,655
Loss from discontinued operations, net of tax	0	(197)
Equity in loss of subsidiaries from discontinued operations	(67)	0
Net income (loss) and comprehensive income (loss)	11,893	12,458
Non-Guarantor Subsidiaries
Condensed Financial Statements, Captions [Line Items]
Total revenue	36	73
Home construction and land sales expenses	0	0
Inventory impairments and abandonments		0
Gross profit	36	73
Commissions	0	0
General and administrative expenses	23	27
Depreciation and Amortization	0	0
Operating income	13	46
Equity in income of unconsolidated entities	0	0
Loss on extinguishment of debt		0
Other (expense) income, net	(1)	(1)
Income (loss) before income taxes	12	45
Expense (benefit) from income taxes	4	17
Equity in income of subsidiaries	0	0
Income (loss) from continuing operations	8	28
Loss from discontinued operations, net of tax	0	(3)
Equity in loss of subsidiaries from discontinued operations	(3)	0
Net income (loss) and comprehensive income (loss)	$ 5	$ 25