Leases (Lease liabilities) (Detail) $ in Thousands	Jun. 29, 2019 USD ($)
Right of use assets
Operating	$ 36,779
Current
Operating lease liabilities	2,315
Non-current
Operating lease liabilities	39,239
Operating Right Of Use Assets [Member]
Right of use assets
Operating	36,779
Property, Plant and Equipment [Member]
Right of use assets
Capital	2,794
Current Operating Lease Liabilities [Member]
Current
Operating lease liabilities	2,315
Accrued Expenses And Other Current Liabilities [Member]
Current
Finance lease liabilities	537
Non Current Operating Lease Liabilities [Member]
Non-current
Operating lease liabilities	39,239
Other Liabilities [Member]
Non-current
Finance lease liabilities	$ 2,313