XML 7 R1.htm IDEA: XBRL DOCUMENT v3.24.3
Document and Entity Information - shares
 9 Months Ended
Sep. 30, 2024
Oct. 31, 2024
Cover [Abstract]    
Entity Registrant Name BUILDERS FIRSTSOURCE, INC.  
Document Type 10-Q  
Amendment Flag false  
Document Period End Date Sep. 30, 2024  
Document Fiscal Year Focus 2024  
Document Fiscal Period Focus Q3  
Trading Symbol BLDR  
Security Exchange Name NYSE  
Entity Central Index Key 0001316835  
Current Fiscal Year End Date --12-31  
Entity Filer Category Large Accelerated Filer  
Entity Small Business false  
Entity Emerging Growth Company false  
Title of 12(b) Security Common stock, par value $0.01 per share  
Entity Common Stock, Shares Outstanding   115,084,980
Entity Current Reporting Status Yes  
Entity Interactive Data Current Yes  
Entity Shell Company false  
Entity File Number 001-40620  
Entity Incorporation, State or Country Code DE  
Entity Tax Identification Number 52-2084569  
Entity Address, Address Line One 6031 Connection Drive  
Entity Address, Address Line Two Suite 400  
Entity Address, City or Town Irving  
Entity Address, State or Province TX  
Entity Address, Postal Zip Code 75039  
City Area Code 214  
Local Phone Number 880-3500  
Document Quarterly Report true  
Document Transition Report false