Balance Sheet Components (Details) - USD ($) $ in Thousands	Sep. 26, 2020	Jun. 27, 2020
Inventories:
Raw materials	$ 20,397	$ 18,287
Work-in-process	172,267	164,061
Finished goods	73,000	77,278
Inventory, net	265,664	259,626
Property, plant and equipment:
Land	17,720	17,720
Buildings and building improvements	314,043	312,999
Machinery and equipment	1,333,793	1,323,791
Property, plant and equipment, gross	1,665,556	1,654,510
Less: accumulated depreciation and amortization	(1,123,135)	(1,104,104)
Property, plant and equipment, net	542,421	550,406
Employee-related Liabilities, Current [Abstract]
Accrued Vacation	36,061	33,992
Accrued Bonuses	29,213	66,662
Accrued Salaries	21,244	12,153
Accrued Employee Stock Purchase Program Withholding	16,898	5,986
Accrued Employee Benefits	4,228	4,077
Other	7,816	3,881
Accrued salary and related expenses	$ 115,460	$ 126,751