Supplemental Guarantor Information - Unaudited Condensed Consolidating Balance Sheet Information (Details) - USD ($) $ in Thousands	Dec. 31, 2017	Sep. 30, 2017	Dec. 31, 2016
ASSETS
Cash and cash equivalents	$ 177,812	$ 292,147	$ 158,623
Restricted cash	12,082	12,462	$ 15,963
Accounts receivable (net of allowance of $329 and $330, respectively)	31,804	36,323
Income tax receivable	88	88
Owned inventory	1,626,721	1,542,807
Investments in unconsolidated entities	4,277	3,994
Deferred tax assets, net	200,101	307,896
Property and equipment, net	18,742	17,566
Investments in subsidiaries	0	0
Intercompany	0	0
Other assets	6,355	7,712
Total assets	2,077,982	2,220,995
LIABILITIES AND STOCKHOLDERS’ EQUITY
Trade accounts payable	97,535	103,484
Other liabilities	103,157	107,659
Intercompany	0	0
Total debt (net of premium of $3,220 and $3,413, respectively, and debt issuance costs of $16,545 and $14,800, respectively)	1,324,509	1,327,412
Total liabilities	1,525,201	1,538,555
Stockholders’ equity	552,781	682,440
Total liabilities and stockholders’ equity	2,077,982	2,220,995
Consolidating Adjustments
ASSETS
Cash and cash equivalents	(6,247)	(7,161)
Restricted cash	0	0
Accounts receivable (net of allowance of $329 and $330, 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	(710,741)	(808,067)
Intercompany	(798,989)	(608,505)
Other assets	0	0
Total assets	(1,515,977)	(1,423,733)
LIABILITIES AND STOCKHOLDERS’ EQUITY
Trade accounts payable	0	0
Other liabilities	0	0
Intercompany	(805,236)	(615,666)
Total debt (net of premium of $3,220 and $3,413, respectively, and debt issuance costs of $16,545 and $14,800, respectively)	0	0
Total liabilities	(805,236)	(615,666)
Stockholders’ equity	(710,741)	(808,067)
Total liabilities and stockholders’ equity	(1,515,977)	(1,423,733)
Beazer Homes USA, Inc.
ASSETS
Cash and cash equivalents	180,282	283,191
Restricted cash	10,941	11,001
Accounts receivable (net of allowance of $329 and $330, respectively)	0	0
Income tax receivable	88	88
Owned inventory	0	0
Investments in unconsolidated entities	773	773
Deferred tax assets, net	200,101	307,896
Property and equipment, net	0	0
Investments in subsidiaries	710,741	808,067
Intercompany	796,658	606,168
Other assets	908	599
Total assets	1,900,492	2,017,783
LIABILITIES AND STOCKHOLDERS’ EQUITY
Trade accounts payable	0	0
Other liabilities	25,025	11,229
Intercompany	2,331	2,337
Total debt (net of premium of $3,220 and $3,413, respectively, and debt issuance costs of $16,545 and $14,800, respectively)	1,320,355	1,321,777
Total liabilities	1,347,711	1,335,343
Stockholders’ equity	552,781	682,440
Total liabilities and stockholders’ equity	1,900,492	2,017,783
Guarantor Subsidiaries
ASSETS
Cash and cash equivalents	3,047	15,393
Restricted cash	1,141	1,461
Accounts receivable (net of allowance of $329 and $330, respectively)	31,804	36,322
Income tax receivable	0	0
Owned inventory	1,626,721	1,542,807
Investments in unconsolidated entities	3,504	3,221
Deferred tax assets, net	0	0
Property and equipment, net	18,742	17,566
Investments in subsidiaries	0	0
Intercompany	0	0
Other assets	5,447	7,098
Total assets	1,690,406	1,623,868
LIABILITIES AND STOCKHOLDERS’ EQUITY
Trade accounts payable	97,535	103,484
Other liabilities	77,882	96,189
Intercompany	802,905	613,329
Total debt (net of premium of $3,220 and $3,413, respectively, and debt issuance costs of $16,545 and $14,800, respectively)	4,154	5,635
Total liabilities	982,476	818,637
Stockholders’ equity	707,930	805,231
Total liabilities and stockholders’ equity	1,690,406	1,623,868
Non-Guarantor Subsidiaries
ASSETS
Cash and cash equivalents	730	724
Restricted cash	0	0
Accounts receivable (net of allowance of $329 and $330, respectively)	0	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	2,331	2,337
Other assets	0	15
Total assets	3,061	3,077
LIABILITIES AND STOCKHOLDERS’ EQUITY
Trade accounts payable	0	0
Other liabilities	250	241
Intercompany	0	0
Total debt (net of premium of $3,220 and $3,413, respectively, and debt issuance costs of $16,545 and $14,800, respectively)	0	0
Total liabilities	250	241
Stockholders’ equity	2,811	2,836
Total liabilities and stockholders’ equity	$ 3,061	$ 3,077