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Concentration of Risk, Segment and Geographic Information - Concentration of Risk (Details) - Customer Concentration Risk - customer | 12 Months Ended
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Dec. 31, 2019 | Dec. 31, 2018
Revenues |  |
Concentration Risk [Line Items] |  |
Number of major partners | 2 | 3
Revenues | Partner 1 |  |
Concentration Risk [Line Items] |  |
Concentration risk (as a percent) | 76.00% | 34.00%
Revenues | Partner 2 |  |
Concentration Risk [Line Items] |  |
Concentration risk (as a percent) | 14.00% | 25.00%
Revenues | Partner 3 |  |
Concentration Risk [Line Items] |  |
Concentration risk (as a percent) |  | 14.00%
Accounts Receivable |  |
Concentration Risk [Line Items] |  |
Number of major partners | 1 | 2
Concentration risk (as a percent) | 100.00% |
Accounts Receivable | Partner 1 |  |
Concentration Risk [Line Items] |  |
Concentration risk (as a percent) |  | 67.00%
Accounts Receivable | Partner 2 |  |
Concentration Risk [Line Items] |  |
Concentration risk (as a percent) |  | 28.00%

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