Supplemental Guarantor Information - Unaudited Consolidating Statements of Cash Flows (Details) (USD $) In Thousands, unless otherwise specified	9 Months Ended
	Jun. 30, 2013	Jun. 30, 2012
Condensed Financial Statements, Captions [Line Items]
Deferred and other income tax benefit	$ (485)	$ (36,378)
Stock-based compensation expense	2,275	3,211
Inventory impairments and option contract abandonments	2,246	11,071
Net cash provided by (used in) operating activities	(198,194)	(106,412)
Cash flows from investing activities:
Capital expenditures	(6,572)	(15,117)
Investments in unconsolidated entities	(1,374)	(2,075)
Payments of Capital Distribution	432	440
Increases in restricted cash	(1,788)	(1,679)
Decreases in restricted cash	9,035	6,955
Net cash used in investing activities	(267)	(11,476)
Cash flows from financing activities:
Payments for Repurchase of Common Stock		(1,296)
Repayment of debt	(185,431)	(3,369)
Proceeds from issuance of new debt	200,000	0
Settlement of unconsolidated entity debt obligation	(500)	(15,862)
Debt issuance costs	(4,935)	(274)
Dividends paid		0
Advances to/from subsidiaries	0	0
Payments for other financing activities	(122)	(98)
Net cash provided by (used in) financing activities	9,012	(20,899)
Decrease in cash and cash equivalents	(189,449)	(138,787)
Cash and cash equivalents at beginning of period	487,795	370,403
Cash and cash equivalents at end of period	298,346	231,616
Beazer Homes USA, Inc.
Condensed Financial Statements, Captions [Line Items]
Net cash provided by (used in) operating activities	(53,663)	(109,339)
Cash flows from investing activities:
Capital expenditures	0	0
Investments in unconsolidated entities	0	0
Payments of Capital Distribution	0	0
Increases in restricted cash	(1,237)	(645)
Decreases in restricted cash	8,487	5,878
Net cash used in investing activities	7,250	5,233
Cash flows from financing activities:
Payments for Repurchase of Common Stock		(1,296)
Repayment of debt	(185,161)	(2,460)
Proceeds from issuance of new debt	200,000
Settlement of unconsolidated entity debt obligation	0	(15,862)
Debt issuance costs	(4,935)	(274)
Dividends paid		(1,800)
Advances to/from subsidiaries	(148,994)	(9,202)
Payments for other financing activities	(122)	(98)
Net cash provided by (used in) financing activities	(139,212)	(30,992)
Decrease in cash and cash equivalents	(185,625)	(135,098)
Cash and cash equivalents at beginning of period	481,394	360,723
Cash and cash equivalents at end of period	295,769	225,625
Guarantor Subsidiaries
Condensed Financial Statements, Captions [Line Items]
Net cash provided by (used in) operating activities	(144,770)	2,225
Cash flows from investing activities:
Capital expenditures	(6,572)	(15,117)
Investments in unconsolidated entities	(1,374)	(2,075)
Payments of Capital Distribution	432	440
Increases in restricted cash	(551)	(1,034)
Decreases in restricted cash	548	1,077
Net cash used in investing activities	(7,517)	(16,709)
Cash flows from financing activities:
Payments for Repurchase of Common Stock		0
Repayment of debt	(270)	(909)
Proceeds from issuance of new debt	0
Settlement of unconsolidated entity debt obligation	(500)	0
Debt issuance costs	0	0
Dividends paid		0
Advances to/from subsidiaries	150,571	11,527
Payments for other financing activities	0	0
Net cash provided by (used in) financing activities	149,801	10,618
Decrease in cash and cash equivalents	(2,486)	(3,866)
Cash and cash equivalents at beginning of period	8,215	10,488
Cash and cash equivalents at end of period	5,729	6,622
Non-Guarantor Subsidiaries
Condensed Financial Statements, Captions [Line Items]
Net cash provided by (used in) operating activities	239	702
Cash flows from investing activities:
Capital expenditures	0	0
Investments in unconsolidated entities	0	0
Payments of Capital Distribution	0	0
Increases in restricted cash	0	0
Decreases in restricted cash	0	0
Net cash used in investing activities	0	0
Cash flows from financing activities:
Payments for Repurchase of Common Stock		0
Repayment of debt	0	0
Proceeds from issuance of new debt	0
Settlement of unconsolidated entity debt obligation	0	0
Debt issuance costs	0	0
Dividends paid		1,800
Advances to/from subsidiaries	3	(1,847)
Payments for other financing activities	0	0
Net cash provided by (used in) financing activities	3	(47)
Decrease in cash and cash equivalents	242	655
Cash and cash equivalents at beginning of period	646	418
Cash and cash equivalents at end of period	888	1,073
Consolidating Adjustments
Condensed Financial Statements, Captions [Line Items]
Net cash provided by (used in) operating activities	0	0
Cash flows from investing activities:
Capital expenditures	0	0
Investments in unconsolidated entities	0	0
Payments of Capital Distribution	0	0
Increases in restricted cash	0	0
Decreases in restricted cash	0	0
Net cash used in investing activities	0	0
Cash flows from financing activities:
Payments for Repurchase of Common Stock		0
Repayment of debt	0	0
Proceeds from issuance of new debt	0
Settlement of unconsolidated entity debt obligation	0	0
Debt issuance costs	0	0
Dividends paid		0
Advances to/from subsidiaries	(1,580)	(478)
Payments for other financing activities	0	0
Net cash provided by (used in) financing activities	(1,580)	(478)
Decrease in cash and cash equivalents	(1,580)	(478)
Cash and cash equivalents at beginning of period	(2,460)	(1,226)
Cash and cash equivalents at end of period	$ (4,040)	$ (1,704)