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Basis of Presentation and Significant Accounting Policies - Concentration of Risk (Details) $ in Millions | 3 Months Ended | 6 Months Ended | 12 Months Ended
--- | --- | --- | ---
Jun. 30, 2022 USD ($) customer | Jun. 30, 2021 customer | Jun. 30, 2022 USD ($) customer | Jun. 30, 2021 customer | Dec. 31, 2021 customer
Concentration of Risk |  |  |  |  |
Trade receivable, net | $ | $ 0.0 |  | $ 0.0 |  |
Customer Concentration Risk | Revenues. |  |  |  |  |
Concentration of Risk |  |  |  |  |
Number of major partners | 2 | 2 | 4 | 2 |
Customer Concentration Risk | Revenues. | Partner 1 |  |  |  |  |
Concentration of Risk |  |  |  |  |
Concentration risk (as a percent) | 51.00% | 55.00% | 49.00% | 57.00% |
Customer Concentration Risk | Revenues. | Partner 2 |  |  |  |  |
Concentration of Risk |  |  |  |  |
Concentration risk (as a percent) | 47.00% | 42.00% | 20.00% | 39.00% |
Customer Concentration Risk | Revenues. | Partner 3 |  |  |  |  |
Concentration of Risk |  |  |  |  |
Concentration risk (as a percent) |  |  | 18.00% |  |
Customer Concentration Risk | Revenues. | Partner 4 |  |  |  |  |
Concentration of Risk |  |  |  |  |
Concentration risk (as a percent) |  |  | 12.00% |  |
Credit Concentration Risk | Trade Receivables | Partner 1 |  |  |  |  |
Concentration of Risk |  |  |  |  |
Number of major partners |  |  |  |  | 1
Concentration risk (as a percent) |  |  |  |  | 100.00%

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