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Leases - (Additional Information) (Details) $ in Millions | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2026 USD ($) m² ft² | Jun. 30, 2025 USD ($) | Jun. 30, 2026 USD ($) m² ft² | Jun. 30, 2025 USD ($)
Lessee, Lease, Description [Line Items] |  |  |  |
Operating lease expense | $ | $ 0.6 | $ 0.9 | $ 1.1 | $ 1.8
Variable Lease Expenses | $ | 0.0 | 0.0 | 0.0 | 0.0
Operating Leases | $ | $ 1.2 | $ 1.4 | $ 1.2 | $ 1.4
Weighted Average Discount Rate Percent | 9.10% |  | 9.10% |
Weighted Average Remaining Lease Term | 2 years 2 months 26 days |  | 2 years 2 months 26 days |
Area of Office Space | ft² | 18,563 |  | 18,563 |
Total Undiscounted Future Payments Under Operating Lease | $ | $ 21.6 |  | $ 21.6 |
Lessee Operating Lease Expiration Year |  |  | 2037 |
New York City [Member] |  |  |  |
Lessee, Lease, Description [Line Items] |  |  |  |
Area of Office Space | ft² | 7,900 |  | 7,900 |
Lessee Operating Lease Expiration Year |  |  | 2027 |
San Francisco [Member] |  |  |  |
Lessee, Lease, Description [Line Items] |  |  |  |
Area of Office Space | ft² | 19,418 |  | 19,418 |
Lessee Operating Lease Expiration Year |  |  | 2029 |
China [Member] |  |  |  |
Lessee, Lease, Description [Line Items] |  |  |  |
Area of Office Space | m² | 1,799 |  | 1,799 |
Massachusetts [Member] |  |  |  |
Lessee, Lease, Description [Line Items] |  |  |  |
Area of Office Space | ft² | 2,235 |  | 2,235 |
Lessee Operating Lease Expiration Year |  |  | 2027 |

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