CONSOLIDATED STATEMENTS OF EARNINGS - USD ($) $ in Thousands	12 Months Ended
	Dec. 28, 2024	Dec. 30, 2023	Dec. 31, 2022
Net sales	$ 4,075,034	$ 4,174,598	$ 4,345,250
Total cost of sales	2,833,822	2,938,564	3,219,026
Gross profit	1,241,212	1,236,034	1,126,224
Selling, general, and administrative expenses	716,628	768,423	692,975
Impairment of goodwill and other intangible assets		140,844
Realignment charges		35,210
Operating income	524,584	291,557	433,249
Other income (expenses):
Interest expense	(58,722)	(56,808)	(47,534)
Interest income	7,183	6,230	2,015
Gain (loss) on deferred compensation investments	3,634	3,564	(3,374)
Gain (loss) on divestitures	(4,474)	2,994	(33,273)
Other	(3,524)	(11,085)	12,805
Total other income (expenses)	(55,903)	(55,105)	(69,361)
Earnings before income taxes and equity in loss of nonconsolidated subsidiaries	468,681	236,452	363,888
Income tax expense (benefit):
Current	142,633	108,770	109,912
Deferred	(24,655)	(18,649)	(1,225)
Total income tax expense	117,978	90,121	108,687
Earnings before equity in loss of nonconsolidated subsidiaries	350,703	146,331	255,201
Equity in loss of nonconsolidated subsidiaries	(79)	(1,419)	(950)
Net earnings	350,624	144,912	254,251
Loss (earnings) attributable to redeemable noncontrolling interests	(2,365)	5,937	(3,388)
Net earnings attributable to Valmont Industries, Inc.	$ 348,259	$ 150,849	$ 250,863
Net earnings attributable to Valmont Industries, Inc. per share:
Basic	$ 17.31	$ 6.85	$ 11.77
Diluted	$ 17.19	$ 6.78	$ 11.62
Product sales
Net sales	$ 3,660,779	$ 3,772,835	$ 3,955,320
Total cost of sales	2,580,083	2,672,740	2,958,208
Service sales
Net sales	414,255	401,763	389,930
Total cost of sales	$ 253,739	$ 265,824	$ 260,818