Restructuring (Details) $ in Millions	12 Months Ended
	Dec. 31, 2021 USD ($)
Restructuring Cost and Reserve [Line Items]
Restructuring charges	$ 6.2
Research and development expenses
Restructuring Cost and Reserve [Line Items]
Restructuring charges	2.7
General and administrative expense
Restructuring Cost and Reserve [Line Items]
Restructuring charges	$ 3.5