Restructuring Plan - Additional Information (Details) $ in Thousands	3 Months Ended
	Jun. 30, 2019 USD ($)
Restructuring Cost And Reserve [Line Items]
Restructuring costs	$ 1,707
Restructuring costs, liability	1,707
Property Plant and Equipment
Restructuring Cost And Reserve [Line Items]
Other asset impairment charges	143
Lease Right of Use Assets
Restructuring Cost And Reserve [Line Items]
Other asset impairment charges	$ 346
Research and Development Costs
Restructuring Cost And Reserve [Line Items]
Restructuring plan, percentage of number of positions eliminated	4.00%