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Goodwill and Other Intangible Assets (Tables) | 6 Months Ended
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Jun. 30, 2019
Goodwill and Intangible Assets Disclosure [Abstract] |
Schedule of Goodwill | The following table presents the goodwill balance by reportable segment:
|  | Rail Products and Services |  | Construction Products |  | Tubular and Energy Services |  | Total
Balance as of December 31, 2018 |  | $ | 14,111 |  | $ | 5,147 |  | $ | — |  | $ | 19,258
Foreign currency translation impact |  | (39) |  | — |  | — |  | (39)
Balance as of June 30, 2019 |  | $ | 14,072 |  | $ | 5,147 |  | $ | — |  | $ | 19,219
Schedule of Intangible Assets | The components of the Company’s intangible assets were as follows:
|  | June 30, 2019 |  |  |  |  |  |
|  | Weighted Average Amortization Period In Years |  | Gross Carrying Value |  | Accumulated Amortization |  | Net Carrying Amount
Non-compete agreements |  | 4 |  | $ | 1,245 |  | $ | (1,082) |  | $ | 163
Patents |  | 10 |  | 374 |  | (179) |  | 195
Customer relationships |  | 18 |  | 37,093 |  | (12,561) |  | 24,532
Trademarks and trade names |  | 15 |  | 8,478 |  | (3,883) |  | 4,595
Technology |  | 14 |  | 35,631 |  | (18,679) |  | 16,952
|  |  |  | $ | 82,821 |  | $ | (36,384) |  | $ | 46,437
|  | December 31, 2018 |  |  |  |  |  |
|  | Weighted Average Amortization Period In Years |  | Gross Carrying Value |  | Accumulated Amortization |  | Net Carrying Amount
Non-compete agreements |  | 4 |  | $ | 1,372 |  | $ | (1,046) |  | $ | 326
Patents |  | 10 |  | 358 |  | (165) |  | 193
Customer relationships |  | 18 |  | 37,129 |  | (11,388) |  | 25,741
Trademarks and trade names |  | 15 |  | 8,481 |  | (3,416) |  | 5,065
Technology |  | 14 |  | 35,640 |  | (17,129) |  | 18,511
|  |  |  | $ | 82,980 |  | $ | (33,144) |  | $ | 49,836
Estimated Future Amortization | As of June 30, 2019, estimated amortization expense for the remainder of 2019 and thereafter was as follows:
| Amortization Expense
Remainder of 2019 | $ | 3,215
2020 | 5,856
2021 | 5,821
2022 | 5,738
2023 | 5,242
2024 and thereafter | 20,565
| $ | 46,437

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