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Document and Entity Information
Nov. 18, 2025
Cover [Abstract]  
Entity Registrant Name DYCOM INDUSTRIES INC
Amendment Flag true
Entity Central Index Key 0000067215
Document Type 8-K/A
Document Period End Date Nov. 18, 2025
Entity Incorporation State Country Code FL
Entity File Number 001-10613
Entity Tax Identification Number 59-1277135
Entity Address, Address Line One 300 Banyan Blvd.
Entity Address, Address Line Two Suite 1101
Entity Address, City or Town West Palm Beach
Entity Address, State or Province FL
Entity Address, Postal Zip Code 33401
City Area Code (561)
Local Phone Number 627-7171
Written Communications false
Soliciting Material false
Pre Commencement Tender Offer false
Pre Commencement Issuer Tender Offer false
Security 12b Title Common stock, par value $0.33 1/3 per share
Trading Symbol DY
Security Exchange Name NYSE
Entity Emerging Growth Company false
Amendment Description This Amendment No. 1 on Form 8-K/A (this “Amendment”) amends the Current Report on Form 8-K (the “Original Report”), initially filed by Dycom Industries, Inc. (“Dycom”) with the Securities and Exchange Commission on November 19, 2025. Following the submission of the Original Report, Dycom discovered that an incorrect item number was inadvertently tagged in the submission header (Item 3.02 should have been tagged instead of Item 3.01). This Amendment is being filed for the sole purpose of correcting the item tag in the submission header. No other modifications have been made to the Original Report (other than hyperlinking to Exhibits 2.1 and 99.1 filed or furnished, as applicable, with the Original Report), and for ease of reference, this Amendment restates in its entirety the Original Report.