Summary of Impact of Adoption of ASC 606 on Condensed Consolidated Balance Sheets (Detail) - USD ($) $ in Thousands		Sep. 28, 2018		Jun. 30, 2018		Jun. 29, 2018
Assets
Contract assets		$ 10,157		$ 9,877
Inventory, net		278,397		249,015		$ 257,687
Liabilities and Shareholders' Equity
Retained earnings		661,478		633,628		632,423
ASU 2014-09 | Balance without ASC 606 Adoption
Assets
Inventory, net		287,318				257,687
Liabilities and Shareholders' Equity
Retained earnings		660,242				$ 632,423
ASU 2014-09 | Adjustment
Assets
Contract assets	[1]	(10,157)		9,877
Inventory, net		8,921	[2]	(8,672)	[3]
Liabilities and Shareholders' Equity
Retained earnings		$ (1,236)	[4]	$ 1,205	[5]

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

[2] Adjustment relates to reduction of finished goods inventory for vendor managed inventory.

[3] Adjustment relates to reduction of finished goods inventory for certain vendor managed inventory arrangements.

[4] Adjustment relates to cumulative effect adjustment upon adoption of ASC

[5] Adjustment relates to cumulative effect adjustment upon adoption of ASC 606.