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RESTRUCTURING - Summary of Restructuring Charges (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2019 | Jun. 30, 2018 | Jun. 30, 2019 | Jun. 30, 2018
Restructuring Cost and Reserve [Line Items] |  |  |  |
Restructuring expenses, net | $ 324 | $ 217 | $ 402 | $ 361
Operating Segments | NobelClad |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Restructuring expenses, net | 324 | 217 | 402 | 361
Operating Segments | Gain on asset disposal | NobelClad |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Restructuring expenses, net | (519) |  | (636) |
Operating Segments | Contract Termination Costs | NobelClad |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Restructuring expenses, net | 4 |  | 43 |
Operating Segments | Equipment Moving Costs | NobelClad |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Restructuring expenses, net | 82 |  | 227 |
Operating Segments | Other Exit Costs | NobelClad |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Restructuring expenses, net | 45 | 35 | 56 | 126
Operating Segments | Severance | NobelClad |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Restructuring expenses, net | $ 712 | $ 182 | $ 712 | $ 235

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- Definition Amount of restructuring charges, remediation cost, and asset impairment loss. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.3) -URI http://asc.fasb.org/extlink&oid=116634182&loc=SL114868664-224227 + Details
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