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Intangible assets, net (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Intangible assets, net    
Amortization expense for intangible assets $ 3.2 $ 0.2
Estimated annual amortization expense 3.1  
Developed technology    
Intangible assets, net    
Intangible assets, gross 31.6 31.6
Intangible assets, accumulated amortization $ 3.3 $ 0.2