Property and Equipment, Net - Depreciation Expense (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021
Depreciation
Total depreciation expense	$ 3.1	$ 1.3
Research and development
Depreciation
Total depreciation expense	2.3	0.9
General and administrative
Depreciation
Total depreciation expense	$ 0.8	$ 0.4