Supplemental Guarantor Information - Consolidating Balance Sheet Information (Details) - USD ($) $ in Thousands	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2013
ASSETS
Cash and cash equivalents	$ 228,871	$ 251,583	$ 324,154	$ 504,459
Restricted cash	14,405	38,901
Accounts receivable (net of allowance of $354 and $1,052, respectively)	53,226	52,379
Income tax receivable	292	419
Owned inventory	1,569,279	1,697,590
Investments in unconsolidated entities	10,470	13,734
Deferred tax assets, net	309,955	325,373
Property and equipment, net	19,138	22,230
Investments in subsidiaries	0	0
Intercompany	0	0
Other assets	7,522	7,086
Total assets	2,213,158	2,409,295
LIABILITIES AND STOCKHOLDERS’ EQUITY
Trade accounts payable	104,174	113,539
Other liabilities	134,253	148,966
Intercompany	0	0
Total debt (net of premium and debt issuance costs)	1,331,878	1,516,367
Total liabilities	1,570,305	1,778,872
Stockholders’ equity	642,853	630,423	279,118	240,550
Total liabilities and stockholders’ equity	2,213,158	2,409,295
Consolidating Adjustments
ASSETS
Cash and cash equivalents	(4,500)	(3,192)	(1,474)	(2,843)
Restricted cash	0	0
Accounts receivable (net of allowance of $354 and $1,052, respectively)	0	0
Income tax receivable	0	0
Owned inventory	0	0
Investments in unconsolidated entities	0	0
Deferred tax assets, net	0	0
Property and equipment, net	0	0
Investments in subsidiaries	(701,931)	(649,701)
Intercompany	(737,340)	(916,117)
Other assets	0	0
Total assets	(1,443,771)	(1,569,010)
LIABILITIES AND STOCKHOLDERS’ EQUITY
Trade accounts payable	0	0
Other liabilities	0	0
Intercompany	(741,840)	(919,309)
Total debt (net of premium and debt issuance costs)	0	0
Total liabilities	(741,840)	(919,309)
Stockholders’ equity	(701,931)	(649,701)
Total liabilities and stockholders’ equity	(1,443,771)	(1,569,010)
Beazer Homes USA, Inc.
ASSETS
Cash and cash equivalents	215,646	232,226	301,980	499,341
Restricted cash	12,867	37,177
Accounts receivable (net of allowance of $354 and $1,052, respectively)	0	0
Income tax receivable	292	419
Owned inventory	0	0
Investments in unconsolidated entities	773	773
Deferred tax assets, net	309,955	325,373
Property and equipment, net	0	0
Investments in subsidiaries	701,931	649,701
Intercompany	734,766	913,733
Other assets	577	611
Total assets	1,976,807	2,160,013
LIABILITIES AND STOCKHOLDERS’ EQUITY
Trade accounts payable	0	0
Other liabilities	11,315	31,703
Intercompany	2,574	2,384
Total debt (net of premium and debt issuance costs)	1,320,065	1,495,503
Total liabilities	1,333,954	1,529,590
Stockholders’ equity	642,853	630,423
Total liabilities and stockholders’ equity	1,976,807	2,160,013
Guarantor Subsidiaries
ASSETS
Cash and cash equivalents	16,866	21,543	22,034	6,324
Restricted cash	1,538	1,724
Accounts receivable (net of allowance of $354 and $1,052, respectively)	53,225	52,378
Income tax receivable	0	0
Owned inventory	1,569,279	1,697,590
Investments in unconsolidated entities	9,697	12,961
Deferred tax assets, net	0	0
Property and equipment, net	19,138	22,230
Investments in subsidiaries	0	0
Intercompany	0	0
Other assets	6,930	6,471
Total assets	1,676,673	1,814,897
LIABILITIES AND STOCKHOLDERS’ EQUITY
Trade accounts payable	104,174	113,539
Other liabilities	122,561	116,718
Intercompany	739,266	916,925
Total debt (net of premium and debt issuance costs)	11,813	20,864
Total liabilities	977,814	1,168,046
Stockholders’ equity	698,859	646,851
Total liabilities and stockholders’ equity	1,676,673	1,814,897
Non-Guarantor Subsidiaries
ASSETS
Cash and cash equivalents	859	1,006	$ 1,614	$ 1,637
Restricted cash	0	0
Accounts receivable (net of allowance of $354 and $1,052, respectively)	1	1
Income tax receivable	0	0
Owned inventory	0	0
Investments in unconsolidated entities	0	0
Deferred tax assets, net	0	0
Property and equipment, net	0	0
Investments in subsidiaries	0	0
Intercompany	2,574	2,384
Other assets	15	4
Total assets	3,449	3,395
LIABILITIES AND STOCKHOLDERS’ EQUITY
Trade accounts payable	0	0
Other liabilities	377	545
Intercompany	0	0
Total debt (net of premium and debt issuance costs)	0	0
Total liabilities	377	545
Stockholders’ equity	3,072	2,850
Total liabilities and stockholders’ equity	$ 3,449	$ 3,395