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GOODWILL AND INTANGIBLE ASSETS - Carrying Values of Trade Names - (Details) - USD ($) $ in Thousands | Sep. 30, 2017 | Dec. 31, 2016
--- | --- | ---
Webforge |  |
Non-amortized intangible assets |  |
Carrying value of trade names | $ 9,362 | $ 8,624
Valmont SM |  |
Non-amortized intangible assets |  |
Carrying value of trade names | 9,839 | 8,765
Newmark |  |
Non-amortized intangible assets |  |
Carrying value of trade names | 11,111 | 11,111
Ingal EPS/Ingal Civil Products |  |
Non-amortized intangible assets |  |
Carrying value of trade names | 7,633 | 7,032
Donhad |  |
Non-amortized intangible assets |  |
Carrying value of trade names | 5,758 | 5,305
Shakespeare |  |
Non-amortized intangible assets |  |
Carrying value of trade names | 4,000 | 4,000
Industrial Galvanizers |  |
Non-amortized intangible assets |  |
Carrying value of trade names | 2,390 | 2,201
Other |  |
Non-amortized intangible assets |  |
Carrying value of trade names | 14,448 | 13,747
Trade Names |  |
Non-amortized intangible assets |  |
Carrying value of trade names | $ 64,541 | $ 60,785

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- Definition Amount of assets, excluding financial assets and goodwill, lacking physical substance and having a projected indefinite period of benefit. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275 + Details
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