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v3.21.1

Segment Geographical Information and Major Customers (Details) | 12 Months Ended
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Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018
Segment Reporting [Abstract] |  |  |
Number of segments | 2 |  |
Percentage of major customer | 10.00% | 9.00% | 13.00%

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