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Revenue | 3 Months Ended
--- | ---
Mar. 31, 2016
Revenue [Abstract] |
Revenue | Revenue The Company differentiates revenue and cost of revenue based on whether the source of revenue is attributable to products, rentals, or services. Revenue and cost of revenue by source are as follows (in thousands):
| Three months ended March 31,
| 2016 |  | 2015
Revenue: |  |  |
Products | $ | 65,874 |  |  | $ | 66,160 |
Rentals | 4,052 |  |  | 11,824 |
Services | 2,363 |  |  | 4,389 |
| $ | 72,289 |  |  | $ | 82,373 |
Cost of revenue: |  |  |
Products | $ | 42,474 |  |  | $ | 45,624 |
Rentals | 1,299 |  |  | 6,285 |
Services | 2,096 |  |  | 2,042 |
Depreciation | 1,491 |  |  | 1,895 |
| $ | 47,360 |  |  | $ | 55,846 |

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- Definition Revenues and Cost of Revenues by Product Rental or Service Source + References No definition available. + Details
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