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Commitments and Contingencies - Narrative (Details) $ in Thousands	1 Months Ended	3 Months Ended		9 Months Ended		12 Months Ended
	Nov. 30, 2023	Sep. 30, 2025 USD ($)	Sep. 30, 2024 USD ($)	Sep. 30, 2025 USD ($) ft²	Sep. 30, 2024 USD ($)	Dec. 31, 2023 ft²
Lessee, Lease, Description [Line Items]
Lease cost | $		$ 584	$ 662	$ 1,700	$ 2,000
Minimum
Lessee, Lease, Description [Line Items]
Operating lease, remaining lease term (in years)		1 year 8 months 12 days		1 year 8 months 12 days
Maximum
Lessee, Lease, Description [Line Items]
Operating lease, remaining lease term (in years)		4 years 3 months 18 days		4 years 3 months 18 days
San Diego, California
Lessee, Lease, Description [Line Items]
Area leased (in square feet)				56,600
Plymouth Meeting, Pennsylvania
Lessee, Lease, Description [Line Items]
Area leased (in square feet)				57,400		11,400
San Diego, California | Minimum
Lessee, Lease, Description [Line Items]
Lessee, operating lease, base rate percentage (in percent)	2.00%
San Diego, California | Maximum
Lessee, Lease, Description [Line Items]
Lessee, operating lease, base rate percentage (in percent)	3.00%

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Lessee, Operating Lease, Area of Land Under Lease

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Amount of lease cost recognized by lessee for lease contract.

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