ACQUISITIONS - Narrative (Details) $ in Thousands, $ in Thousands						9 Months Ended
	Aug. 31, 2023 USD ($) payment	Aug. 31, 2023 AUD ($)	Aug. 10, 2022 USD ($)	Jun. 01, 2022 USD ($)	May 10, 2022 USD ($)	Sep. 30, 2023 USD ($)	Sep. 24, 2022 USD ($)	Aug. 31, 2023 AUD ($) payment	Dec. 31, 2022 USD ($)	Aug. 31, 2022 USD ($)
Business Acquisition [Line Items]
Acquisitions, net of cash acquired						$ 31,839	$ 39,287
Goodwill						635,017			$ 739,861
Non-controlling interest in consolidated subsidiaries						$ 56,970			$ 60,865
Conceal Fab
Business Acquisition [Line Items]
Current assets				$ 21,133
Property, plant, and equipment				3,813
Goodwill				42,465
Other non-current assets				9,108
Total fair value of assets acquired				107,719
Current Liabilities				6,658
Long-term debt				2,038
Operating lease liabilities				7,812
Deferred income taxes				5,464
Other non-current liabilities				12
Total fair value of liabilities assumed				21,984
Non-controlling interest in consolidated subsidiaries				41,693
Net assets acquired				$ 44,042
Percentage acquired				51.00%
Cash paid to acquire business				$ 39,287
Contingent consideration liability, current				1,850
Convert Italia S.p.A.
Business Acquisition [Line Items]
Percentage acquired			9.00%
Consideration transferred			$ 3,046
Valmont West Coast Engineering
Business Acquisition [Line Items]
Percentage acquired					20.00%
Consideration transferred					$ 4,292
HR Products
Business Acquisition [Line Items]
Acquisitions, net of cash acquired	$ 36,465	$ 56,744
Retention fund, withheld	$ 4,626							$ 7,200
Number of equal payments | payment	2							2
Current assets										$ 24,816
Property, plant, and equipment										222
Goodwill										17,645
Other non-current assets										4,819
Total fair value of assets acquired										47,502
Current Liabilities										4,216
Operating lease liabilities										3,581
Total fair value of liabilities assumed										7,797
Net assets acquired										$ 39,705
Customer relationships | Conceal Fab
Business Acquisition [Line Items]
Intangible assets				26,200
Trade names | Conceal Fab
Business Acquisition [Line Items]
Intangible assets				$ 5,000