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Revenue (Tables) | 12 Months Ended
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Dec. 31, 2021
Revenue from Contract with Customer [Abstract] |
Revenues Disaggregated by Category | The following table presents our revenues disaggregated by category:
| Year Ended December 31,
| 2021 |  | 2020 |  | 2019
Product revenue | $ | 280,907 |  |  | $ | 206,801 |  |  | $ | 357,087 |
Rental revenue | 61,629 |  |  | 66,169 |  |  | 141,816 |
Field service and other revenue | 96,053 |  |  | 75,596 |  |  | 129,511 |
Total revenue | $ | 438,589 |  |  | $ | 348,566 |  |  | $ | 628,414 |

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