Amount of operating income (loss) attributable to disposal group, including, but not limited to, discontinued operation.

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Amount before tax of gain (loss) recognized on the sale or disposal of a disposal group. Excludes discontinued operations.

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Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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Indicates line item in statement of income that includes gain (loss) recognized on sale or disposal of disposal group. Excludes discontinued operation.

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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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The cash inflow associated with the amount received from the sale of a portion of the company's business, for example a segment, division, branch or other business, during the period.

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Represents information pertaining to cash consideration.

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Represents information pertaining to consideration escrowed.

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DIVESTITURES (Details) kr in Thousands, $ in Thousands			3 Months Ended	6 Months Ended
DIVESTITURES (Details) kr in Thousands, $ in Thousands	Apr. 30, 2023 USD ($)	Apr. 28, 2023	Jul. 01, 2023 USD ($)	Jul. 01, 2023 USD ($)	Jun. 25, 2022 USD ($)	Dec. 31, 2022 USD ($)	Dec. 31, 2022 DKK (kr)
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Pre-tax gain on sale of engineering and equipment				$ 2,994	$ 0
Valmont SM, Offshore Wind Business [Member] \| Disposed by sale
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Operating income			$ 516	$ (293)
Cash consideration						$ 12,570	kr 90,000
Consideration escrowed						$ 4,027	kr 28,000
Torrent Engineering and Equipment [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Net proceeds	$ 6,369
Pre-tax gain on sale of engineering and equipment	$ 2,994
Disposal Group, Not Discontinued Operation, Gain (Loss) on Disposal, Statement of Income or Comprehensive Income [Extensible Enumeration]		Nonoperating Income (Expense)