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Inventories, net (Tables) | 12 Months Ended
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Dec. 31, 2017
Inventory Disclosure [Abstract] |
Schedule of Inventory | Inventories at December 31, 2017 and 2016 were as follows (in thousands):
| December 31,
| 2017 |  | 2016
Pipe and connectors, net of allowance of $20,064 and $2,108, respectively | $ | 33,620 |  |  | $ | 102,360 |
Finished goods, net of allowance of $1,520 and $2,518, respectively | 14,541 |  |  | 14,257 |
Work in progress | 9,206 |  |  | 7,099 |
Raw materials, components and supplies | 19,053 |  |  | 15,363 |
Total inventories, net | $ | 76,420 |  |  | $ | 139,079 |

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