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Summary of Significant Accounting Policies (Tables) | 6 Months Ended
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Jun. 30, 2017
Accounting Policies [Abstract] |
Depreciation Expense Excluded From Each Line Item in Consolidated Statements of Operations | The following table summarizes depreciation expense excluded from each line item in our consolidated statements of operations (in thousands):
|  | Three Months Ended June 30, |  | Six Months Ended June 30,
|  | 2017 |  | 2016 |  | 2017 |  | 2016
Cost of revenues |  | $ | 1,486 |  |  | $ | 920 |  |  | $ | 2,942 |  |  | $ | 1,838 |
Operating expense |  | 8,265 |  |  | 2,503 |  |  | 16,474 |  |  | 4,934 |
General and administrative expense |  | 667 |  |  | 454 |  |  | 1,405 |  |  | 939 |

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