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GOODWILL AND INTANGIBLE ASSETS - Carrying Amount of Goodwill by Segment (Details) - USD ($) $ in Thousands | 3 Months Ended |
--- | --- | ---
Mar. 30, 2019 | Dec. 29, 2018
Goodwill |  |
Gross balance, beginning |  | $ 434,454
Accumulated impairment losses |  | (49,247)
Balance, ending | $ 385,207 | 385,207
Carrying amount of goodwill |  |
Balance at the beginning of the period | 385,207 |
Acquisitions | 30,214 |
Foreign currency translation | 1,575 |
Balance at the end of the period | 416,996 |
Engineered Support Structures Segment |  |
Goodwill |  |
Gross balance, beginning |  | 204,735
Accumulated impairment losses |  | (18,670)
Balance, ending | 186,065 | 186,065
Carrying amount of goodwill |  |
Balance at the beginning of the period | 186,065 |
Acquisitions | 14,494 |
Foreign currency translation | 1,930 |
Balance at the end of the period | 202,489 |
Utility Support Structures Segment |  |
Goodwill |  |
Gross balance, beginning |  | 123,618
Accumulated impairment losses |  | (14,355)
Balance, ending | 109,263 | 109,263
Carrying amount of goodwill |  |
Balance at the beginning of the period | 109,263 |
Acquisitions | 0 |
Foreign currency translation | (710) |
Balance at the end of the period | 108,553 |
Coatings Segment |  |
Goodwill |  |
Gross balance, beginning |  | 80,937
Accumulated impairment losses |  | (16,222)
Balance, ending | 64,715 | 64,715
Carrying amount of goodwill |  |
Balance at the beginning of the period | 64,715 |
Acquisitions | 15,720 |
Foreign currency translation | 300 |
Balance at the end of the period | 80,735 |
Irrigation Segment |  |
Goodwill |  |
Gross balance, beginning |  | 25,164
Accumulated impairment losses |  | 0
Balance, ending | 25,164 | $ 25,164
Carrying amount of goodwill |  |
Balance at the beginning of the period | 25,164 |
Acquisitions | 0 |
Foreign currency translation | 55 |
Balance at the end of the period | $ 25,219 |

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- Definition Amount of increase in asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized resulting from a business combination. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=108376223&loc=d3e13816-109267 + Details
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