CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - USD ($) $ in Thousands	3 Months Ended
Mar. 30, 2019	Mar. 31, 2018
Statement of Comprehensive Income [Abstract]
Net earnings	$ 37,455	$ 40,480
Foreign currency translation adjustments:
Unrealized translation gain	2,266	6,804
Gain (loss) on hedging activities:
Net investment hedges	69	(789)
Amortization cost included in interest expense	(16)	19
Commodity hedges	0	(93)
Cross currency swaps	2,261	0
Other comprehensive income	4,580	5,941
Comprehensive income	42,035	46,421
Comprehensive income attributable to noncontrolling interests	(1,109)	(4,747)
Comprehensive income attributable to Valmont Industries, Inc.	$ 40,926	$ 41,674

Amount after tax of increase (decrease) in equity from transactions and other events and circumstances from net income and other comprehensive income, attributable to parent entity. Excludes changes in equity resulting from investments by owners and distributions to owners.

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