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Revenue from Contracts with Customers (Tables) | 3 Months Ended
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Mar. 31, 2018
Revenue from Contract with Customer [Abstract] |
Schedule of Disaggregation of Revenue | Revenue and cost of revenue (excluding depreciation and amortization) disaggregated by revenue source are as follows (in thousands):
| Three months ended March 31,
| 2018 |  | 2017
Revenue: |  |  |
Products | $ | 59,250 |  |  | $ | 78,514 |
Services | 1,266 |  |  | 1,440 |
| $ | 60,516 |  |  | $ | 79,954 |
Cost of revenue (excluding depreciation and amortization): |  |  |
Products | $ | 44,514 |  |  | $ | 50,691 |
Services | 1,187 |  |  | 934 |
| $ | 45,701 |  |  | $ | 51,625 |

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