Supplemental Guarantor Information - Consolidating Statements of Cash Flows (Details) (USD $)	12 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2011
Condensed Financial Statements, Captions [Line Items]
Net Cash Provided by (Used in) Operating Activities	$ (174,642,000)	$ (20,845,000)	$ (178,936,000)
Cash flows from investing activities:
Capital expenditures	(10,761,000)	(17,363,000)	(20,514,000)
Investments in unconsolidated entities	(3,879,000)	(2,407,000)	(1,924,000)
Return of capital from unconsolidated entities	510,000	610,000	0
Increases in restricted cash	(4,790,000)	(3,260,000)	(250,839,000)
Decreases in restricted cash	209,072,000	27,058,000	12,981,000
Net Cash Provided by (Used in) Investing Activities	190,152,000	4,638,000	(260,296,000)
Cash flows from financing activities:
Repayment of debt	(184,723,000)	(290,387,000)	(215,376,000)
Proceeds from issuance of new debt	397,082,000	300,000,000	246,387,000
Proceeds from Issuance of Secured Debt	0	0	247,368,000
Repayments of Secured Debt	(205,000,000)	(20,000,000)	0
Debt issuance costs	(5,548,000)	(10,845,000)	(5,172,000)
Proceeds from issuance of common stock, net	0	60,340,000	0
Proceeds from issuance of TEU prepaid stock purchase contracts, net	0	88,361,000	0
Proceeds From Issuance of TEU Amortizing Notes	0	23,500,000	0
Settlement of unconsolidated entity debt obligation	(500,000)	(15,862,000)	0
Payments for other financing activities	(157,000)	(1,508,000)	(693,000)
Dividends paid		0	0
Advances to/from subsidiaries	0	0	0
Cash and cash equivalents at beginning of period	487,795,000	370,403,000	537,121,000
Cash and cash equivalents at end of period	504,459,000	487,795,000	370,403,000
Net Cash Provided by (Used in) Financing Activities	1,154,000	133,599,000	272,514,000
Cash and Cash Equivalents, Period Increase (Decrease)	16,664,000	117,392,000	(166,718,000)
Beazer Homes USA, Inc.
Condensed Financial Statements, Captions [Line Items]
Net Cash Provided by (Used in) Operating Activities	(89,306,000)	(110,429,000)	(53,850,000)
Cash flows from investing activities:
Capital expenditures	0	0	0
Investments in unconsolidated entities	0	0	0
Return of capital from unconsolidated entities	0	0
Increases in restricted cash	(3,460,000)	(2,100,000)	(249,728,000)
Decreases in restricted cash	208,487,000	25,919,000	11,832,000
Net Cash Provided by (Used in) Investing Activities	205,027,000	23,819,000	(237,896,000)
Cash flows from financing activities:
Repayment of debt	(184,250,000)	(289,063,000)	(214,005,000)
Proceeds from issuance of new debt	397,082,000	300,000,000	246,387,000
Proceeds from Issuance of Secured Debt			247,368,000
Repayments of Secured Debt	(205,000,000)	(20,000,000)
Debt issuance costs	(5,548,000)	(10,845,000)	(5,172,000)
Proceeds from issuance of common stock, net		60,340,000
Proceeds from issuance of TEU prepaid stock purchase contracts, net		88,361,000
Proceeds From Issuance of TEU Amortizing Notes		23,500,000
Settlement of unconsolidated entity debt obligation	0	(15,862,000)
Payments for other financing activities	(157,000)	(1,508,000)	(693,000)
Dividends paid		2,300,000	850,000
Advances to/from subsidiaries	(99,901,000)	70,058,000	(153,113,000)
Cash and cash equivalents at beginning of period	481,394,000	360,723,000	530,847,000
Cash and cash equivalents at end of period	499,341,000	481,394,000	360,723,000
Net Cash Provided by (Used in) Financing Activities	(97,774,000)	207,281,000	121,622,000
Cash and Cash Equivalents, Period Increase (Decrease)	17,947,000	120,671,000	(170,124,000)
Guarantor Subsidiaries
Condensed Financial Statements, Captions [Line Items]
Net Cash Provided by (Used in) Operating Activities	(86,300,000)	88,806,000	(126,090,000)
Cash flows from investing activities:
Capital expenditures	(10,761,000)	(17,363,000)	(20,514,000)
Investments in unconsolidated entities	(3,879,000)	(2,407,000)	(1,924,000)
Return of capital from unconsolidated entities	510,000	610,000
Increases in restricted cash	(1,330,000)	(1,160,000)	(1,111,000)
Decreases in restricted cash	585,000	1,139,000	1,149,000
Net Cash Provided by (Used in) Investing Activities	(14,875,000)	(19,181,000)	(22,400,000)
Cash flows from financing activities:
Repayment of debt	(473,000)	(1,324,000)	(1,371,000)
Proceeds from issuance of new debt	0	0	0
Proceeds from Issuance of Secured Debt			0
Repayments of Secured Debt	0	0
Debt issuance costs	0	0	0
Proceeds from issuance of common stock, net		0
Proceeds from issuance of TEU prepaid stock purchase contracts, net		0
Proceeds From Issuance of TEU Amortizing Notes		0
Settlement of unconsolidated entity debt obligation	(500,000)	0
Payments for other financing activities	0	0	0
Dividends paid		0	0
Advances to/from subsidiaries	100,257,000	(70,574,000)	152,006,000
Cash and cash equivalents at beginning of period	8,215,000	10,488,000	8,343,000
Cash and cash equivalents at end of period	6,324,000	8,215,000	10,488,000
Net Cash Provided by (Used in) Financing Activities	99,284,000	(71,898,000)	150,635,000
Cash and Cash Equivalents, Period Increase (Decrease)	(1,891,000)	(2,273,000)	2,145,000
Non-Guarantor Subsidiaries
Condensed Financial Statements, Captions [Line Items]
Net Cash Provided by (Used in) Operating Activities	964,000	778,000	1,004,000
Cash flows from investing activities:
Capital expenditures	0	0	0
Investments in unconsolidated entities	0	0	0
Return of capital from unconsolidated entities	0	0
Increases in restricted cash	0	0	0
Decreases in restricted cash	0	0	0
Net Cash Provided by (Used in) Investing Activities	0	0	0
Cash flows from financing activities:
Repayment of debt	0	0	0
Proceeds from issuance of new debt	0	0	0
Proceeds from Issuance of Secured Debt			0
Repayments of Secured Debt	0	0
Debt issuance costs	0	0	0
Proceeds from issuance of common stock, net		0
Proceeds from issuance of TEU prepaid stock purchase contracts, net		0
Proceeds From Issuance of TEU Amortizing Notes		0
Settlement of unconsolidated entity debt obligation	0	0
Payments for other financing activities	0	0	0
Dividends paid		(2,300,000)	(850,000)
Advances to/from subsidiaries	27,000	1,750,000	64,000
Cash and cash equivalents at beginning of period	646,000	418,000	200,000
Cash and cash equivalents at end of period	1,637,000	646,000	418,000
Net Cash Provided by (Used in) Financing Activities	27,000	(550,000)	(786,000)
Cash and Cash Equivalents, Period Increase (Decrease)	991,000	228,000	218,000
Consolidating Adjustments
Condensed Financial Statements, Captions [Line Items]
Net Cash Provided by (Used in) Operating Activities	0	0	0
Cash flows from investing activities:
Capital expenditures	0	0	0
Investments in unconsolidated entities	0	0	0
Return of capital from unconsolidated entities	0	0
Increases in restricted cash	0	0	0
Decreases in restricted cash	0	0	0
Net Cash Provided by (Used in) Investing Activities	0	0	0
Cash flows from financing activities:
Repayment of debt	0	0	0
Proceeds from issuance of new debt	0	0	0
Proceeds from Issuance of Secured Debt			0
Repayments of Secured Debt	0	0
Debt issuance costs	0	0	0
Proceeds from issuance of common stock, net		0
Proceeds from issuance of TEU prepaid stock purchase contracts, net		0
Proceeds From Issuance of TEU Amortizing Notes		0
Settlement of unconsolidated entity debt obligation	0	0
Payments for other financing activities	0	0	0
Dividends paid		0	0
Advances to/from subsidiaries	(383,000)	(1,234,000)	1,043,000
Cash and cash equivalents at beginning of period	(2,460,000)	(1,226,000)	(2,269,000)
Cash and cash equivalents at end of period	(2,843,000)	(2,460,000)	(1,226,000)
Net Cash Provided by (Used in) Financing Activities	(383,000)	(1,234,000)	1,043,000
Cash and Cash Equivalents, Period Increase (Decrease)	$ (383,000)	$ (1,234,000)	$ 1,043,000