GOODWILL AND INTANGIBLE ASSETS (Tables)

12 Months Ended

Dec. 25, 2021

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule of Components of Amortized Intangible Assets

The components of amortized intangible assets at December 25, 2021 and December 26, 2020 were as follows:

	December 25, 2021
	Gross Carrying Amount		Accumulated Amortization		Weighted Average Life
Customer Relationships	$	224,597	$	160,626	13 years
Patents & Proprietary Technology	58,699		13,955		9 years
Trade Name	2,850		183		7 years
Other	4,534		3,959		6 years
	$	290,680	$	178,723

	December 26, 2020
	Gross Carrying Amount		Accumulated Amortization		Weighted Average Life
Customer Relationships	$	237,232	$	155,760	13 years
Patents & Proprietary Technology	26,208		8,301		14 years
Other	7,602		6,786		4 years
	$	271,042	$	170,847

Schedule of Future Estimated Amortization Expense

Estimated annual amortization expense related to finite‑lived intangible assets is as follows:

	Estimated Amortization Expense
2022	$	19,466
2023	17,692
2024	15,768
2025	14,301
2026	10,123

Schedule of Non-Amortized Intangible Assets

The carrying values of these trade names at December 25, 2021 and December 26, 2020 were as follows:

	December 25, 2021		December 26, 2020		Year Acquired
Newmark	$	11,111	$	11,111	2004
Webforge	7,877		7,972		2010
Valmont SM	6,082		8,720		2014
Ingal EPS/Ingal Civil Products	7,637		7,730		2010
Shakespeare	4,000		4,000		2014
Walpar	3,500		3,500		2018
Convert	8,479		9,137		2018
Other	14,721		14,828
	$	63,407	$	66,998

Schedule of Carrying Amount of Goodwill

The carrying amount of goodwill by segment as of December 25, 2021 and December 26, 2020 was as follows:

	Engineered Support Structures Segment		Utility Support Structures Segment		Coatings Segment		Irrigation Segment		Total
Gross balance at December 26, 2020	$	232,323	$	135,335	$	94,309	$	30,177	$	492,144
Accumulated impairment losses	(31,245)		(14,355)		(16,222)		—		(61,822)
Balance at December 26, 2020	201,078		120,980		78,087		30,177		$	430,322
Acquisitions	—		—		—		284,253		284,253
Foreign currency translation	(1,632)		(3,256)		(203)		(918)		(6,009)
Balance at December 25, 2021	$	199,446	$	117,724	$	77,884	$	313,512	$	708,566

	Engineered Support Structures Segment		Utility Support Structures Segment		Coatings Segment		Irrigation Segment		Total
Gross balance at December 28, 2019	$	228,634	$	130,594	$	93,747	$	25,136	$	478,111
Accumulated impairment losses	(18,670)		(14,355)		(16,222)		—		(49,247)
Balance at December 28, 2019	209,964		116,239		77,525		25,136		428,864
Acquisitions	—		1,100		—		5,038		6,138
Impairment	(12,575)		—		—		—		(12,575)
Foreign currency translation	3,689		3,641		562		3		7,895
Balance at December 26, 2020	$	201,078	$	120,980	$	78,087	$	30,177	$	430,322