Schedule of Activity in the Company's Contract Assets (Detail) - USD ($) $ in Thousands		3 Months Ended
		Sep. 28, 2018	Jun. 30, 2018
Revenue From Contract With Customers [Line Items]
Cumulative effect adjustment at June 30, 2018		$ 10,157	$ 9,877
Revenue recognized		27,954
Amounts collected or invoiced		(27,674)
Ending balance, September 28, 2018		10,157
ASU 2014-09 | Adjustment
Revenue From Contract With Customers [Line Items]
Cumulative effect adjustment at June 30, 2018	[1]	(10,157)	$ 9,877
Ending balance, September 28, 2018	[1]	$ (10,157)

[1] Majority of adjustment relates to certain manufacturing contracts with vendor managed inventory arrangements for which revenue was recognized on shipment.