v3.24.1.1.u2
Cover Page - shares
3 Months Ended
Apr. 27, 2024
May 21, 2024
Cover [Abstract]    
Document Type 10-Q  
Document Quarterly Report true  
Document Period End Date Apr. 27, 2024  
Document Transition Report false  
Entity File Number 001-10613  
Entity Registrant Name DYCOM INDUSTRIES, INC.  
Entity Incorporation, State or Country Code FL  
Entity Tax Identification Number 59-1277135  
Entity Address, Address Line One 11780 US Highway 1, Suite 600  
Entity Address, City or Town Palm Beach Gardens,  
Entity Address, State or Province FL  
Entity Address, Postal Zip Code 33408  
City Area Code 561  
Local Phone Number 627-7171  
Title of 12(b) Security Common stock, par value $0.33 1/3 per share  
Trading Symbol DY  
Security Exchange Name NYSE  
Entity Current Reporting Status Yes  
Entity Interactive Data Current Yes  
Entity Filer Category Large Accelerated Filer  
Entity Small Business false  
Entity Emerging Growth Company false  
Entity Shell Company false  
Entity Common Stock, Shares Outstanding   29,093,184
Entity Central Index Key 0000067215  
Current Fiscal Year End Date --01-25  
Document Fiscal Year Focus 2025  
Document Fiscal Period Focus Q1  
Amendment Flag false