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Commitments and Contingencies (Narrative) (Details) - USD ($) $ in Thousands | 1 Months Ended | 12 Months Ended |  |  |
--- | --- | --- | --- | --- | ---
Apr. 30, 2020 | Dec. 31, 2023 | Dec. 31, 2022 | Nov. 30, 2022 | Nov. 26, 2022 | Oct. 28, 2021
Lease term |  |  |  |  |  | 16 years
Base annual rent for 2024 |  |  |  |  |  | $ 250
Maximum allowance for tenant improvements |  |  |  |  |  | 7,300
Tenant allowances |  |  |  |  |  | 5,400
Operating lease expected yearly base rent | $ 1,900 |  |  |  |  |
Annual increase in rent percentage | 3.00% |  |  |  |  |
Base rent at the end of lease term | $ 2,500 |  |  |  |  |
Period of lease and rental abatement credit | 6 months |  |  |  |  |
Rent expense under operating leases |  | $ 7,400 | $ 6,300 |  |  |
Cash payments for operating leases |  | 3,500 | 2,700 |  |  |
Operating Lease, Liability | $ 11,700 | 38,064 |  |  | $ 37,000 |
Operating Lease, Right-of-Use Asset | $ 11,000 | 44,717 | 43,035 |  | $ 33,800 |
Lessee, Operating Lease, Discount Rate | 12.89% |  |  | 11.80% |  |
Standby letter of credit |  |  |  |  |  | $ 5,000
Increase (decrease) operating lease right-of-use and liability |  | $ (13,451) | $ 3,643 |  |  |
2021 Lease [Member] |  |  |  |  |  |
Lessee, Operating Lease, Discount Rate |  | 14.27% |  |  |  |
Increase (decrease) operating lease right-of-use and liability |  | $ 2,700 |  |  |  |
Cash [Member] |  |  |  |  |  |
Standby letter of credit | $ 1,200 | $ 700 |  |  |  |
Annual reduction of standby letter of credit | 20.00% |  |  |  |  |

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