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Revenue (Tables) | 3 Months Ended
--- | ---
Mar. 31, 2021
Revenue from Contract with Customer [Abstract] |
Revenue Recognized |
|  |  | Three Months Ended
|  |  | March 31,
|  |  |  |  | 2021 |  | 2020
Revenue recognized over time |  |  |  |  | $ | 1,628 |  |  | $ | 1,475 |
Revenue recognized at a point in time |  |  |  |  | 1,450 |  |  | 1,282 |
Total revenue |  |  |  |  | $ | 3,078 |  |  | $ | 2,757 |

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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=121604090&loc=SL49130545-203045 + Details
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