Investments in Unconsolidated Entities - Income (Loss), Impairments From, and Equity In Investments In Unconsolidated Entities (Details) (USD $)	12 Months Ended					12 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2013 Inspirada	May 03, 2012 Inspirada	Sep. 30, 2013 South Edge	Sep. 30, 2013 the REIT	May 03, 2012 the REIT home	Sep. 30, 2012 Other Liabilities [Member]
Schedule of Equity Method Investments [Line Items]
Income from unconsolidated entity activity	$ 68,000	$ 304,000	$ 652,000
Impairment of unconsolidated entity investment	(181,000)	0	(92,000)
Equity in income (loss) of unconsolidated entities - continuing operations	(113,000)	304,000	560,000
Settlement of unconsolidated entity debt obligation	500,000	15,862,000	0			15,900,000
(Decrease) increase in future land purchase rights	0	(11,651,000)	11,651,000	11,700,000
Cash and Pre-Owned Homes business contributed								300,000
Number of pre-owned homes								190
Number of pre-owned homes that were leased								187
Beazer homes' ownership interest	100.00%				10.00%		15.00%	23.50%
Beazer's estimate of its maximum exposure to our repayment guarantees	0	696,000							700,000
Guarantor Obligation, Settlement, Payment	500,000
Guarantor Obligation, Settlement, Other Income (Expense)	$ 200,000