Restructuring - Additional Information (Details) $ in Millions		3 Months Ended
	Jun. 28, 2019 Employee	Jun. 30, 2019 USD ($)
Restructuring Cost And Reserve [Line Items]
One-time severance-related charge		$ 1.5
Corporate restructuring, reduction of full-time workforce percentage	60.00%
Corporate restructuring, reduction of full-time workforce employees | Employee	48
General and Administrative
Restructuring Cost And Reserve [Line Items]
One-time severance-related charge		1.0
Research and Development
Restructuring Cost And Reserve [Line Items]
One-time severance-related charge		$ 0.5