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Revenue - Disaggregation of Revenue (Details) - USD ($) $ in Thousands | 3 Months Ended
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Mar. 31, 2020 | Mar. 31, 2019
Disaggregation of Revenue [Line Items] |  |
Revenue | $ 91,250 | $ 61,727
Sales Channel Concentration Risk | Revenue |  |
Disaggregation of Revenue [Line Items] |  |
Percentage of Revenue | 100.00% | 100.00%
Geographic Concentration Risk | Revenue |  |
Disaggregation of Revenue [Line Items] |  |
Percentage of Revenue | 100.00% | 100.00%
Channel partners |  |
Disaggregation of Revenue [Line Items] |  |
Revenue | $ 9,159 | $ 6,196
Channel partners | Sales Channel Concentration Risk | Revenue |  |
Disaggregation of Revenue [Line Items] |  |
Percentage of Revenue | 10.00% | 10.00%
Direct customers |  |
Disaggregation of Revenue [Line Items] |  |
Revenue | $ 82,091 | $ 55,531
Direct customers | Sales Channel Concentration Risk | Revenue |  |
Disaggregation of Revenue [Line Items] |  |
Percentage of Revenue | 90.00% | 90.00%
United States |  |
Disaggregation of Revenue [Line Items] |  |
Revenue | $ 44,215 | $ 30,739
United States | Geographic Concentration Risk | Revenue |  |
Disaggregation of Revenue [Line Items] |  |
Percentage of Revenue | 48.00% | 50.00%
Europe, Middle East, and Africa |  |
Disaggregation of Revenue [Line Items] |  |
Revenue | $ 23,106 | $ 14,626
Europe, Middle East, and Africa | Geographic Concentration Risk | Revenue |  |
Disaggregation of Revenue [Line Items] |  |
Percentage of Revenue | 26.00% | 24.00%
Asia Pacific |  |
Disaggregation of Revenue [Line Items] |  |
Revenue | $ 17,604 | $ 12,179
Asia Pacific | Geographic Concentration Risk | Revenue |  |
Disaggregation of Revenue [Line Items] |  |
Percentage of Revenue | 19.00% | 20.00%
Other |  |
Disaggregation of Revenue [Line Items] |  |
Revenue | $ 6,325 | $ 4,183
Other | Geographic Concentration Risk | Revenue |  |
Disaggregation of Revenue [Line Items] |  |
Percentage of Revenue | 7.00% | 6.00%

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