Inventory (Detail) - USD ($) $ in Thousands	Mar. 30, 2018	Jun. 30, 2017
Inventory [Line Items]
Raw materials	$ 90,024	$ 88,640
Work in progress	114,348	105,732
Finished goods	24,010	33,998
Goods in transit	13,674	13,025
Inventory, Gross, Total	242,056	241,395
Less: Inventory obsolescence	(2,439)	(2,730)
Inventory, net	$ 239,617	$ 238,665