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Commitments and Contingencies (Narrative) (Details) - USD ($) $ in Millions | 1 Months Ended | 3 Months Ended | 9 Months Ended |
--- | --- | --- | --- | ---
Apr. 30, 2020 | Sep. 30, 2024 | Sep. 30, 2023 | Sep. 30, 2024 | Sep. 30, 2023 | Oct. 28, 2021
Annual increase in rent percentage | 3.00% |  |  |  |  |
Standby letter of credit |  |  |  |  |  | $ 5.0
Lease term |  |  |  |  |  | 16 years
Base annual rent for 2024 |  |  |  |  |  | $ 0.3
Allowance for tenant improvements |  |  |  |  |  | $ 7.2
Rent expense under operating leases |  | $ 2.0 | $ 2.1 | $ 6.3 | $ 5.7 |
Variable lease payment |  | 0.4 | $ 0.5 | 1.4 | $ 0.9 |
Minimum |  |  |  |  |  |
Base rent at the end of lease term | $ 1.9 |  |  |  |  |
Maximum |  |  |  |  |  |
Base rent at the end of lease term | 2.5 |  |  |  |  |
Cash |  |  |  |  |  |
Standby letter of credit | $ 1.2 | $ 0.5 |  | $ 0.5 |  |
Annual reduction of standby letter of credit | 20.00% |  |  |  |  |

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