CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - USD ($) $ in Thousands	3 Months Ended
	Apr. 01, 2023	Mar. 26, 2022
Statement of Comprehensive Income [Abstract]
Net earnings	$ 72,345	$ 62,906
Foreign currency translation adjustments:
Unrealized translation gains	8,189	11,062
Hedging activities:
Unrealized gain (loss) on commodity hedges	(1,476)	20,560
Realized (gain) loss on commodity hedges recorded in earnings	2,872	(2,043)
Unrealized gain (loss) on cross currency swaps	(591)	1,811
Amortization cost included in interest expense	(16)	(16)
Gain (loss) on hedging activities	789	20,312
Net gain on defined benefit pension plan	91	686
Other comprehensive income	9,069	32,060
Comprehensive income	81,414	94,966
Comprehensive (income) loss attributable to noncontrolling interests	1,902	(1,688)
Comprehensive income attributable to Valmont Industries, Inc.	$ 83,316	$ 93,278