Supplemental Guarantor Information - Unaudited Consolidating Balance Sheet Information (Details) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2013	Sep. 30, 2012	Mar. 31, 2012	Sep. 30, 2011
ASSETS
Cash and cash equivalents	$ 425,660	$ 487,795	$ 257,028	$ 370,403
Restricted cash	246,742	253,260
Accounts receivable (net of allowance)	25,070	24,599
Income tax receivable	2,513	6,372
Owned inventory	1,143,737	1,099,132
Consolidated inventory not owned	8,375	12,420
Investments in unconsolidated entities	41,814	42,078
Deferred tax assets, net	7,000	6,848
Property, plant and equipment, net	16,928	18,974
Investments in subsidiaries	0	0
Intercompany	0	0
Other assets	28,871	30,740
Total assets	1,946,710	1,982,218
LIABILITIES AND STOCKHOLDERS' EQUITY
Trade accounts payable	62,235	69,268
Other liabilities	140,802	147,718
Intercompany	0	0
Obligations related to land not owned under option agreements	3,286	4,787
Total debt (net of discounts of $2,440 and $3,082, respectively)	1,507,153	1,498,198
Total liabilities	1,713,476	1,719,971
Stockholders' equity	233,234	262,247
Total liabilities and stockholders' equity	1,946,710	1,982,218
Beazer Homes USA, Inc.
ASSETS
Cash and cash equivalents	423,377	481,394	252,555	360,723
Restricted cash	246,201	252,900
Accounts receivable (net of allowance)	0	0
Income tax receivable	2,513	6,372
Owned inventory	0	0
Consolidated inventory not owned	0	0
Investments in unconsolidated entities	773	773
Deferred tax assets, net	7,000	6,848
Property, plant and equipment, net	0	0
Investments in subsidiaries	79,504	63,120
Intercompany	1,004,919	969,425
Other assets	22,260	21,307
Total assets	1,786,547	1,802,139
LIABILITIES AND STOCKHOLDERS' EQUITY
Trade accounts payable	0	0
Other liabilities	53,746	49,354
Intercompany	1,077	1,098
Obligations related to land not owned under option agreements	0	0
Total debt (net of discounts of $2,440 and $3,082, respectively)	1,498,490	1,489,440
Total liabilities	1,553,313	1,539,892
Stockholders' equity	233,234	262,247
Total liabilities and stockholders' equity	1,786,547	1,802,139
Guarantor Subsidiaries
ASSETS
Cash and cash equivalents	5,551	8,215	5,002	10,488
Restricted cash	541	360
Accounts receivable (net of allowance)	25,063	24,594
Income tax receivable	0	0
Owned inventory	1,143,737	1,099,132
Consolidated inventory not owned	8,375	12,420
Investments in unconsolidated entities	41,041	41,305
Deferred tax assets, net	0	0
Property, plant and equipment, net	16,928	18,974
Investments in subsidiaries	0	0
Intercompany	0	0
Other assets	5,051	7,783
Total assets	1,246,287	1,212,783
LIABILITIES AND STOCKHOLDERS' EQUITY
Trade accounts payable	62,235	69,268
Other liabilities	85,478	96,389
Intercompany	1,010,470	973,788
Obligations related to land not owned under option agreements	3,286	4,787
Total debt (net of discounts of $2,440 and $3,082, respectively)	8,663	8,758
Total liabilities	1,170,132	1,152,990
Stockholders' equity	76,155	59,793
Total liabilities and stockholders' equity	1,246,287	1,212,783
Non-Guarantor Subsidiaries
ASSETS
Cash and cash equivalents	514	646	745	418
Restricted cash	0	0
Accounts receivable (net of allowance)	7	5
Income tax receivable	0	0
Owned inventory	0	0
Consolidated inventory not owned	0	0
Investments in unconsolidated entities	0	0
Deferred tax assets, net	0	0
Property, plant and equipment, net	0	0
Investments in subsidiaries	0	0
Intercompany	2,846	3,001
Other assets	1,560	1,650
Total assets	4,927	5,302
LIABILITIES AND STOCKHOLDERS' EQUITY
Trade accounts payable	0	0
Other liabilities	1,578	1,975
Intercompany	0	0
Obligations related to land not owned under option agreements	0	0
Total debt (net of discounts of $2,440 and $3,082, respectively)	0	0
Total liabilities	1,578	1,975
Stockholders' equity	3,349	3,327
Total liabilities and stockholders' equity	4,927	5,302
Consolidating Adjustments
ASSETS
Cash and cash equivalents	(3,782)	(2,460)	(1,274)	(1,226)
Restricted cash	0	0
Accounts receivable (net of allowance)	0	0
Income tax receivable	0	0
Owned inventory	0	0
Consolidated inventory not owned	0	0
Investments in unconsolidated entities	0	0
Deferred tax assets, net	0	0
Property, plant and equipment, net	0	0
Investments in subsidiaries	(79,504)	(63,120)
Intercompany	(1,007,765)	(972,426)
Other assets	0	0
Total assets	(1,091,051)	(1,038,006)
LIABILITIES AND STOCKHOLDERS' EQUITY
Trade accounts payable	0	0
Other liabilities	0	0
Intercompany	(1,011,547)	(974,886)
Obligations related to land not owned under option agreements	0	0
Total debt (net of discounts of $2,440 and $3,082, respectively)	0	0
Total liabilities	(1,011,547)	(974,886)
Stockholders' equity	(79,504)	(63,120)
Total liabilities and stockholders' equity	$ (1,091,051)	$ (1,038,006)