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Commitments and Contingencies - Narratives (Details) - USD ($) $ in Thousands | 1 Months Ended | 3 Months Ended
--- | --- | ---
Mar. 31, 2023 | Mar. 31, 2024
Commitments and Contingencies |  |
Financing liability |  | $ 2,259
Laboratory equipment |  |
Commitments and Contingencies |  |
Financing liability |  | 2,300
Penn License Agreement | Penn |  |
Commitments and Contingencies |  |
Annual payments to be made |  | 25,000
Additional milestone payments for first CAR-M product |  | 1,700
Penn License Agreement | Penn | Maximum |  |
Commitments and Contingencies |  |
Milestone payments |  | 10,900
Additional milestone payments |  | $ 30,000
Novartis Agreement |  |
Commitments and Contingencies |  |
Agreement term | 5 years |
Renewal term | 1 year |
Amount payable per calendar year for reserved capacity | $ 1,000 |
Termination fee payable | $ 4,000 |

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