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Segment and Geographic Information - Additional Information (Details) | 3 Months Ended
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Mar. 31, 2020 USD ($) Segment | Mar. 31, 2019
Segment Reporting Reconciling Item For Operating Profit Loss From Segment To Consolidated [Line Items] |  |
Number of Reportable Segments | Segment | 3 |
Germany |  |
Segment Reporting Reconciling Item For Operating Profit Loss From Segment To Consolidated [Line Items] |  |
Exception of Long-Lived Assets | $ | $ 223,000 |
Revenue | Customer Concentration Risk |  |
Segment Reporting Reconciling Item For Operating Profit Loss From Segment To Consolidated [Line Items] |  |
Concentration risk, percentage | 27.00% | 26.00%
Revenue | Customer Concentration Risk | International |  |
Segment Reporting Reconciling Item For Operating Profit Loss From Segment To Consolidated [Line Items] |  |
Concentration risk, percentage | 50.00% | 72.00%

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