CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - USD ($) $ in Thousands	12 Months Ended
	Dec. 30, 2023	Dec. 31, 2022	Dec. 25, 2021
CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME
Net earnings (loss)	$ 144,912	$ 254,251	$ 197,725
Foreign currency translation adjustments:
Unrealized translation gain (loss)	25,261	(44,741)	(31,405)
Realized loss on offshore wind energy structures business recorded in other expense		25,977
Total foreign currency translation adjustments	25,261	(18,764)	(31,405)
Hedging activities:
Unrealized gain (loss) on commodity hedges	(2,227)	(2,352)	20,019
Realized loss (gain) on commodity hedges recorded in earnings	5,288	5,212	(25,821)
Unrealized gain (loss) on cross currency swaps	(2,119)	5,146	6,093
Realized gain on offshore wind energy structures business cross currency swap, net of tax expense of $1,207		(3,620)
Amortization cost included in interest expense	(52)	(64)	(64)
Total hedging activities	890	4,322	227
Net gain (loss) on defined benefit pension plan	(23,326)	1,345	76,718
Other comprehensive income (loss), net of tax:	2,825	(13,097)	45,540
Comprehensive income	147,737	241,154	243,265
Comprehensive (loss) income attributable to redeemable noncontrolling interests	4,785	(2,073)	(976)
Comprehensive income attributable to Valmont Industries, Inc.	$ 152,522	$ 239,081	$ 242,289