Restructuring Costs (Additional Information) (Details) - USD ($) $ in Thousands |
3 Months Ended | 9 Months Ended | 12 Months Ended | ||
|---|---|---|---|---|---|
Sep. 30, 2021 |
Sep. 30, 2020 |
Sep. 30, 2021 |
Sep. 30, 2020 |
Dec. 31, 2020 |
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| Restructuring Cost and Reserve [Line Items] | |||||
| Severance cost | $ 400 | ||||
| Severance and transitional expenses to be paid | $ 400 | ||||
| Non cash stock-based compensation expense | $ (1,236) | (570) | $ (865) | $ (3,638) | |
| Unvested Stock Awards [Member] | |||||
| Restructuring Cost and Reserve [Line Items] | |||||
| Non cash stock-based compensation expense | $ (900) | ||||
| X | ||||||||||
- Definition Severance And Transitional Expenses To Be Paid No definition available.
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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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- Definition Amount of expenses for special or contractual termination benefits provided to current employees involuntarily terminated under a benefit arrangement associated exit or disposal activities pursuant to an authorized plan. Excludes expenses related to one-time termination benefits, a discontinued operation or an asset retirement obligation. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Details
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