Income taxes (Deferred Assets and Liabilities) (Details) - USD ($) $ in Thousands	Jul. 01, 2017	Jul. 02, 2016
Deferred tax assets:
Federal, state and foreign net operating loss carry-forwards	$ 269,576	$ 94,892
Inventories valuation	30,330	20,635
Receivables valuation	9,209	9,188
Various accrued liabilities and other	46,922	35,929
Deferred tax assets, gross	356,037	160,644
Less - valuation allowance	(241,687)	(63,694)
Deferred tax assets, net	114,350	96,950
Deferred tax liabilities:
Depreciation and amortization of property, plant and equipment	(152,101)	(99,154)
Net deferred tax liabilities	$ (37,751)	$ (2,204)