Cover Page - shares	9 Months Ended
	Jun. 30, 2021	Jul. 26, 2021
Cover [Abstract]
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Jun. 30, 2021
Document Transition Report	false
Entity File Number	001-12822
Entity Registrant Name	BEAZER HOMES USA, INC.
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	58-2086934
Entity Address, Address Line One	1000 Abernathy Road
Entity Address, Address Line Two	Suite 260
Entity Address, City or Town	Atlanta
Entity Address, State or Province	GA
Entity Address, Postal Zip Code	30328
City Area Code	770
Local Phone Number	829-3700
Title of 12(b) Security	Common Stock, $0.001 par value
Trading Symbol	BZH
Security Exchange Name	NYSE
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Common Stock, Shares Outstanding		31,293,798
Entity Central Index Key	0000915840
Amendment Flag	false
Document Fiscal Year Focus	2021
Document Fiscal Period Focus	Q3
Current Fiscal Year End Date	--09-30