v3.7.0.1
Document and Entity Information - shares
6 Months Ended
Mar. 31, 2017
Apr. 28, 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 Mar. 31, 2017  
Amendment Flag false  
Document Fiscal Year Focus 2017  
Document Fiscal Period Focus Q2  
Current Fiscal Year End Date --09-30  
Entity Filer Category Accelerated Filer  
Entity Common Stock, Shares Outstanding   33,545,740