Supplemental Guarantor Information - Unaudited Consolidating Statements of Cash Flows (Details) (USD $) In Thousands, unless otherwise specified	9 Months Ended
	Jun. 30, 2014	Jun. 30, 2013
Condensed Financial Statements, Captions [Line Items]
Net cash (used in) provided by operating activities	$ (289,593)	$ (198,194)
Cash flows from investing activities:
Capital expenditures	(8,984)	(6,572)
Investments in unconsolidated entities	(4,567)	(1,374)
Return of capital from unconsolidated entities	187	432
Increases in restricted cash	(10,081)	(1,788)
Decreases in restricted cash	1,096	9,035
Net cash used in investing activities	(22,349)	(267)
Cash flows from financing activities:
Repayment of debt	(305,085)	(185,431)
Proceeds from issuance of new debt	325,000	200,000
Settlement of unconsolidated entity debt obligation	0	(500)
Debt issuance costs	(5,504)	(4,935)
Advances to/from subsidiaries	0	0
Payments for other financing activities	(446)	(122)
Net cash provided by financing activities	13,965	9,012
Decrease in cash and cash equivalents	(297,977)	(189,449)
Cash and cash equivalents at beginning of period	504,459	487,795
Cash and cash equivalents at end of period	206,482	298,346
Beazer Homes USA, Inc.
Condensed Financial Statements, Captions [Line Items]
Net cash (used in) provided by operating activities	(90,773)	(53,663)
Cash flows from investing activities:
Capital expenditures	0	0
Investments in unconsolidated entities	0	0
Return of capital from unconsolidated entities	0	0
Increases in restricted cash	(8,915)	(1,237)
Decreases in restricted cash	39	8,487
Net cash used in investing activities	(8,876)	7,250
Cash flows from financing activities:
Repayment of debt	(303,448)	(185,161)
Proceeds from issuance of new debt	325,000	200,000
Settlement of unconsolidated entity debt obligation		0
Debt issuance costs	(5,504)	(4,935)
Advances to/from subsidiaries	(214,598)	(148,994)
Payments for other financing activities	(446)	(122)
Net cash provided by financing activities	(198,996)	(139,212)
Decrease in cash and cash equivalents	(298,645)	(185,625)
Cash and cash equivalents at beginning of period	499,341	481,394
Cash and cash equivalents at end of period	200,696	295,769
Guarantor Subsidiaries
Condensed Financial Statements, Captions [Line Items]
Net cash (used in) provided by operating activities	(198,873)	(144,770)
Cash flows from investing activities:
Capital expenditures	(8,984)	(6,572)
Investments in unconsolidated entities	(4,567)	(1,374)
Return of capital from unconsolidated entities	187	432
Increases in restricted cash	(1,166)	(551)
Decreases in restricted cash	1,057	548
Net cash used in investing activities	(13,473)	(7,517)
Cash flows from financing activities:
Repayment of debt	(1,637)	(270)
Proceeds from issuance of new debt	0	0
Settlement of unconsolidated entity debt obligation		(500)
Debt issuance costs	0	0
Advances to/from subsidiaries	216,882	150,571
Payments for other financing activities	0	0
Net cash provided by financing activities	215,245	149,801
Decrease in cash and cash equivalents	2,899	(2,486)
Cash and cash equivalents at beginning of period	6,324	8,215
Cash and cash equivalents at end of period	9,223	5,729
Non-Guarantor Subsidiaries
Condensed Financial Statements, Captions [Line Items]
Net cash (used in) provided by operating activities	53	239
Cash flows from investing activities:
Capital expenditures	0	0
Investments in unconsolidated entities	0	0
Return of capital from unconsolidated entities	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:
Repayment of debt	0	0
Proceeds from issuance of new debt	0	0
Settlement of unconsolidated entity debt obligation		0
Debt issuance costs	0	0
Advances to/from subsidiaries	(50)	3
Payments for other financing activities	0	0
Net cash provided by financing activities	(50)	3
Decrease in cash and cash equivalents	3	242
Cash and cash equivalents at beginning of period	1,637	646
Cash and cash equivalents at end of period	1,640	888
Consolidating Adjustments
Condensed Financial Statements, Captions [Line Items]
Net cash (used in) provided by operating activities	0	0
Cash flows from investing activities:
Capital expenditures	0	0
Investments in unconsolidated entities	0	0
Return of capital from unconsolidated entities	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:
Repayment of debt	0	0
Proceeds from issuance of new debt	0	0
Settlement of unconsolidated entity debt obligation		0
Debt issuance costs	0	0
Advances to/from subsidiaries	(2,234)	(1,580)
Payments for other financing activities	0	0
Net cash provided by financing activities	(2,234)	(1,580)
Decrease in cash and cash equivalents	(2,234)	(1,580)
Cash and cash equivalents at beginning of period	(2,843)	(2,460)
Cash and cash equivalents at end of period	$ (5,077)	$ (4,040)