Income taxes (Deferred Assets and Liabilities) (Details) - USD ($) $ in Thousands	Jun. 27, 2015	Jun. 28, 2014
Deferred tax assets:
Federal, state and foreign tax loss carry-forwards	$ 249,385	$ 336,334
Inventories valuation	16,806	18,442
Receivables valuation	16,989	26,022
Various accrued liabilities and other	14,427	(1,673)
Deferred tax assets, gross	297,607	379,125
Less - valuation allowance	(111,381)	(182,123)
Deferred tax assets, net	186,226	197,002
Deferred tax liabilities:
Depreciation and amortization of property, plant and equipment and intangible assets	(67,828)	(46,294)
Net deferred tax assets	$ 118,398	$ 150,708