Accrued expenses and other current liabilities - Supply agreement (Details) - USD ($) $ / shares in Units, $ in Thousands |
3 Months Ended | 9 Months Ended | ||
|---|---|---|---|---|
Sep. 30, 2020 |
Sep. 30, 2019 |
Sep. 30, 2020 |
Sep. 30, 2019 |
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| Contingencies and commitments | ||||
| Required purchase period | 5 years | |||
| Losses accrued on firm purchase commitments | $ 0 | $ 5,000 | $ 0 | $ 5,000 |
| Related per share amount | $ (0.01) | $ (0.01) | ||
| Research and development | ||||
| Contingencies and commitments | ||||
| Purchasing obligations | 2,500 | $ 5,000 | 2,500 | $ 5,000 |
| Purchase Obligation, Due in Next Twelve Months | $ 2,500 | $ 2,500 | ||
| X | ||||||||||
- Definition Refers to losses accrued on firm purchase commitments. No definition available.
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| X | ||||||||||
- Definition The price paid per share to purchase the targeted purchase amount set forth on the purchase agreement. No definition available.
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| X | ||||||||||
- Definition Period covered by the long-term purchase commitment, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. No definition available.
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| X | ||||||||||
- Definition Minimum amount of purchase arrangement in which the entity has agreed to expend funds to procure goods or services from a supplier. No definition available.
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| X | ||||||||||
- Definition Amount of purchase arrangement to be paid in next fiscal year following current fiscal year. Includes, but is not limited to, recorded and unrecorded purchase obligations, long-term purchase commitment, and short-term purchase commitment. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach). No definition available.
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| X | ||||||||||
- References No definition available.
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- Details
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