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Leases (Details) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Leases      
Lessee, Operating Lease, Existence of Option to Extend [true false] true    
Increase in right of use assets for new leases and lease extensions $ 2.9 $ 0.1 $ 2.5
Increase in lease liabilities for new lease and lease extensions 2.9 0.1 2.5
Operating lease expense 2.0 1.9 1.9
Variable lease expense 0.8 0.8 0.8
Operating lease payments $ 2.0 $ 2.0 $ 1.9
Weighted-average remaining lease term 2 years 2 years  
Weighted-average discount rate 10.00% 10.00%  
Minimum      
Leases      
Remaining lease term (in years) 1 year    
Maximum      
Leases      
Remaining lease term (in years) 3 years