Summary of Significant Accounting Policies - Lessee, Assets and Liabilities (Details) - USD ($) $ in Thousands |
Sep. 30, 2021 |
Jan. 01, 2021 |
Dec. 31, 2020 |
|---|---|---|---|
| Statement of Financial Position [Abstract] | |||
| Right-of-use asset | $ 1,486 | $ 2,101 | $ 0 |
| Straight-line rent accrual | 0 | (188) | (180) |
| Right-of-use asset, net of straight-line rent accrual | 1,913 | ||
| Lease liability, current | 486 | 500 | 0 |
| Lease liability, non-current | 1,232 | 1,601 | $ 0 |
| Present value of lease liabilities | $ 1,718 | $ 2,101 |
| X | ||||||||||
- Definition Operating Lease, Right-of-Use Asset, Net of Accrued Rent No definition available.
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| X | ||||||||||
- Definition Carrying value as of the balance sheet date of obligations incurred through that date and due after one year (or beyond the operating cycle if longer) for contractual rent under lease arrangements. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition Present value of lessee's discounted obligation for lease payments from operating lease. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Present value of lessee's discounted obligation for lease payments from operating lease, classified as current. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Present value of lessee's discounted obligation for lease payments from operating lease, classified as noncurrent. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount of lessee's right to use underlying asset under operating lease. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- References No definition available.
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