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Leases - Narrative (Details)
3 Months Ended 6 Months Ended
Jun. 30, 2024
USD ($)
Jun. 30, 2023
USD ($)
Jun. 30, 2024
USD ($)
Jun. 30, 2023
USD ($)
Jun. 30, 2024
EUR (€)
Jan. 01, 2024
USD ($)
Lessee, Lease, Description [Line Items]            
Operating lease, cost $ 101,000 $ 1,000 $ 144,000 $ 2,000    
Operating lease, weighted average remaining lease term 2 years 9 months 18 days   2 years 9 months 18 days   2 years 9 months 18 days  
Operating lease, weighted average discount rate, percent 6.70%   6.70%   6.70%  
Frankfurt, Germany Office            
Lessee, Lease, Description [Line Items]            
Operating lease, monthly payments $ 9,227   $ 9,227   € 8,612  
Berlin, Germany Office            
Lessee, Lease, Description [Line Items]            
Operating lease, monthly payments $ 7,929   $ 7,929   € 7,400  
Englewood, CO Office            
Lessee, Lease, Description [Line Items]            
Operating lease, monthly payments           $ 8,966