v3.25.0.1
Document and Entity Information
Feb. 18, 2025
Document and Entity Information [Abstract]  
Document Type 8-K
Document Period End Date Feb. 18, 2025
Entity File Number 1-31429
Entity Registrant Name Valmont Industries, Inc.
Entity Incorporation, State or Country Code DE
Entity Tax Identification Number 47-0351813
Entity Address State Or Province NE
Entity Address, Address Line One 15000 Valmont Plaza
Entity Address, City or Town Omaha,
Entity Address, Postal Zip Code 68154
City Area Code 402
Local Phone Number 963-1000
Title of 12(b) Security Common Stock, $1.00 par value
Trading Symbol VMI
Security Exchange Name NYSE
Entity Emerging Growth Company false
Entity Central Index Key 0000102729
Amendment Flag false
Written Communications false
Soliciting Material false
Pre-commencement Tender Offer false
Pre-commencement Issuer Tender Offer false