Balance Sheet Components - Property, plant, and equipment (Details) - USD ($) $ in Thousands	Mar. 31, 2020	Jun. 30, 2019
Property, Plant and Equipment [Line Items]
Property, plant, and equipment excluding equipment and construction In progress, gross	$ 648,065	$ 465,219
Land use rights	8,480	8,760
Less: accumulated depreciation	(280,269)	(252,982)
Property, plant and equipment excluding equipment and construction in progress, net	367,796	212,237
Equipment and construction in progress	44,522	197,500
Property, plant and equipment, net	412,318	409,737
Land
Property, Plant and Equipment [Line Items]
Property, plant, and equipment excluding equipment and construction In progress, gross	4,877	4,877
Building
Property, Plant and Equipment [Line Items]
Property, plant, and equipment excluding equipment and construction In progress, gross	58,640	36,205
Manufacturing machinery and facility equipment
Property, Plant and Equipment [Line Items]
Property, plant, and equipment excluding equipment and construction In progress, gross	440,823	303,750
Equipment and tooling
Property, Plant and Equipment [Line Items]
Property, plant, and equipment excluding equipment and construction In progress, gross	25,211	20,739
Computer equipment and software
Property, Plant and Equipment [Line Items]
Property, plant, and equipment excluding equipment and construction In progress, gross	38,651	34,048
Office furniture and equipment
Property, Plant and Equipment [Line Items]
Property, plant, and equipment excluding equipment and construction In progress, gross	3,368	3,243
Leasehold improvements
Property, Plant and Equipment [Line Items]
Property, plant, and equipment excluding equipment and construction In progress, gross	$ 68,015	$ 53,597