Supplemental Guarantor Information - Unaudited Consolidating Statements of Cash Flows (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Dec. 31, 2012	Dec. 31, 2011
Condensed Financial Statements, Captions [Line Items]
Net cash provided by (used in) operating activities	$ (87,453)	$ (71,087)
Cash flows from investing activities:
Capital expenditures	(1,772)	(8,636)
Investments in unconsolidated entities	(115)	(477)
Increases in restricted cash	(278)	(672)
Decreases in restricted cash	2,083	489
Net cash provided by (used in) investing activities	(82)	(9,296)
Cash flows from financing activities:
Repayment of debt	(1,902)	(1,522)
Settlement of unconsolidated entity debt obligation	(500)	(15,862)
Debt issuance costs	(1,136)	(97)
Dividends paid	0	0
Advances to/from subsidiaries	0	0
Payments for other financing activities	(26)	(15)
Net cash (used in) provided by financing activities	(3,564)	(17,496)
(Decrease) increase in cash and cash equivalents	(91,099)	(97,879)
Cash and cash equivalents at beginning of period	487,795	370,403
Cash and cash equivalents at end of period	396,696	272,524
Beazer Homes USA, Inc.
Condensed Financial Statements, Captions [Line Items]
Net cash provided by (used in) operating activities	315	(105,844)
Cash flows from investing activities:
Capital expenditures	0	0
Investments in unconsolidated entities	0	0
Increases in restricted cash	(132)	(255)
Decreases in restricted cash	1,958	0
Net cash provided by (used in) investing activities	1,826	(255)
Cash flows from financing activities:
Repayment of debt	(1,861)	(1,181)
Settlement of unconsolidated entity debt obligation	0	0
Debt issuance costs	(1,136)	(97)
Dividends paid	0	(1,800)
Advances to/from subsidiaries	(81,834)	21,338
Payments for other financing activities	(26)	(15)
Net cash (used in) provided by financing activities	(84,857)	18,245
(Decrease) increase in cash and cash equivalents	(82,716)	(87,854)
Cash and cash equivalents at beginning of period	481,394	360,723
Cash and cash equivalents at end of period	398,678	272,869
Guarantor Subsidiaries
Condensed Financial Statements, Captions [Line Items]
Net cash provided by (used in) operating activities	(87,817)	33,963
Cash flows from investing activities:
Capital expenditures	(1,772)	(8,636)
Investments in unconsolidated entities	(115)	(477)
Increases in restricted cash	(146)	(417)
Decreases in restricted cash	125	489
Net cash provided by (used in) investing activities	(1,908)	(9,041)
Cash flows from financing activities:
Repayment of debt	(41)	(341)
Settlement of unconsolidated entity debt obligation	(500)	(15,862)
Debt issuance costs	0	0
Dividends paid	0	0
Advances to/from subsidiaries	82,982	(17,325)
Payments for other financing activities	0	0
Net cash (used in) provided by financing activities	82,441	(33,528)
(Decrease) increase in cash and cash equivalents	(7,284)	(8,606)
Cash and cash equivalents at beginning of period	8,215	10,488
Cash and cash equivalents at end of period	931	1,882
Non-Guarantor Subsidiaries
Condensed Financial Statements, Captions [Line Items]
Net cash provided by (used in) operating activities	49	794
Cash flows from investing activities:
Capital expenditures	0	0
Investments in unconsolidated entities	0	0
Increases in restricted cash	0	0
Decreases in restricted cash	0	0
Net cash provided by (used in) investing activities	0	0
Cash flows from financing activities:
Repayment of debt	0	0
Settlement of unconsolidated entity debt obligation	0	0
Debt issuance costs	0	0
Dividends paid	0	1,800
Advances to/from subsidiaries	(96)	(1,837)
Payments for other financing activities	0	0
Net cash (used in) provided by financing activities	(96)	(37)
(Decrease) increase in cash and cash equivalents	(47)	757
Cash and cash equivalents at beginning of period	646	418
Cash and cash equivalents at end of period	599	1,175
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
Increases in restricted cash	0	0
Decreases in restricted cash	0	0
Net cash provided by (used in) investing activities	0	0
Cash flows from financing activities:
Repayment of debt	0	0
Settlement of unconsolidated entity debt obligation	0	0
Debt issuance costs	0	0
Dividends paid	0	0
Advances to/from subsidiaries	(1,052)	(2,176)
Payments for other financing activities	0	0
Net cash (used in) provided by financing activities	(1,052)	(2,176)
(Decrease) increase in cash and cash equivalents	(1,052)	(2,176)
Cash and cash equivalents at beginning of period	(2,460)	(1,226)
Cash and cash equivalents at end of period	$ (3,512)	$ (3,402)