Leases (Details) $ in Millions	1 Months Ended	12 Months Ended
	Sep. 30, 2025 ft² item	Dec. 31, 2025 USD ($)	Dec. 31, 2024 USD ($)	Dec. 31, 2023 USD ($)
Leases
Lessee, Operating Lease, Existence of Option to Extend [true false]		true
Increase in right of use assets for new leases and lease extensions		$ 0.1	$ 2.9	$ 0.1
Increase in lease liabilities for new lease and lease extensions		0.1	2.9	0.1
Operating lease expense		2.1	2.0	1.9
Variable lease expense		0.9	0.8	0.8
Operating lease payments		$ 2.1	$ 2.0	$ 2.0
Weighted-average remaining lease term		1 year	2 years
Weighted-average discount rate		10.00%	10.00%
Area of lease space | ft²	40,400
Initial lease term	5 years 6 months
Number of renewal options available | item	3
Lease renewal term	5 years
Purchase obligations		$ 4.5
Unrecorded Unconditional Purchase Obligation, Category [Extensible Enumeration]		us-gaap:OperatingLeaseLeaseNotYetCommencedMember
Minimum
Leases
Remaining lease term (in years)		1 year
Maximum
Leases
Remaining lease term (in years)		5 years