Document and Entity Information - shares	9 Months Ended
	Jun. 30, 2017	Jul. 27, 2017
Document and Entity Information [Abstract]
Entity Registrant Name	BEAZER HOMES USA INC
Entity Central Index Key	0000915840
Document Type	10-Q
Document Period End Date	Jun. 30, 2017
Amendment Flag	false
Document Fiscal Year Focus	2017
Document Fiscal Period Focus	Q3
Current Fiscal Year End Date	--09-30
Entity Filer Category	Accelerated Filer
Entity Common Stock, Shares Outstanding		33,536,450