Restructuring - Additional Information (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2020 USD ($)
Restructuring Cost and Reserve [Line Items]
Restructuring charge	$ 1,900
Severance paid	900
Amount of remaining costs expected	0
Research and Development Expense
Restructuring Cost and Reserve [Line Items]
Restructuring charge	800
General and Administrative Expense
Restructuring Cost and Reserve [Line Items]
Restructuring charge	1,100
Employee Severance
Restructuring Cost and Reserve [Line Items]
Accrued liability for restructuring charge	$ 1,000