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Other Financial Information - Narrative (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Property, Plant and Equipment [Line Items]    
Depreciation and amortization $ 0.9 $ 0.5
Assets Held under Capital Leases    
Property, Plant and Equipment [Line Items]    
Gross book value of assets under capital leases 2.5 $ 1.2
Leasehold improvements    
Property, Plant and Equipment [Line Items]    
Gross book value of assets under capital leases $ 1.5