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Property and Equipment - Narrative (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Property and Equipment      
Depreciation $ 5.8 $ 3.2 $ 2.1
Finance Leases 0.3 0.3 $ 0.1
Accumulated amortization $ 0.1 $ 0.1