Share-based Compensation Expense by Line Item (Details) - USD ($) $ in Thousands |
3 Months Ended | 9 Months Ended | ||
|---|---|---|---|---|
Sep. 30, 2021 |
Sep. 30, 2020 |
Sep. 30, 2021 |
Sep. 30, 2020 |
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| Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items] | ||||
| Share-based employee compensation expense | $ 2,810 | $ 450 | $ 12,345 | $ 839 |
| Research and Development Expense [Member] | ||||
| Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items] | ||||
| Share-based employee compensation expense | 1,371 | 291 | 4,758 | 433 |
| Sales Marketing General And Administrative Expense [Member] | ||||
| Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items] | ||||
| Share-based employee compensation expense | $ 1,439 | $ 159 | $ 7,587 | $ 406 |
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- Definition Amount of expense for award under share-based payment arrangement. Excludes amount capitalized. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. No definition available.
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