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Revenue (Tables) | 12 Months Ended
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Dec. 31, 2019
Revenue |
Revenues disaggregated by category |
|  | Year Ended December 31,
|  | 2019 |  | 2018 |  | 2017
Product revenue |  | $ | 357,087 |  | $ | 290,496 |  | $ | 189,091
Rental revenue |  |  | 141,816 |  |  | 133,418 |  |  | 77,469
Field service and other revenue |  |  | 129,511 |  |  | 120,221 |  |  | 74,631
Total revenue |  | $ | 628,414 |  | $ | 544,135 |  | $ | 341,191

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- Definition Tabular disclosure of disaggregation of revenue into categories depicting how nature, amount, timing, and uncertainty of revenue and cash flows are affected by economic factor. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=118956577&loc=SL49130545-203045 + Details
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