Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands	3 Months Ended		12 Months Ended
	Sep. 23, 2017	Sep. 24, 2016	Jun. 24, 2017
Cash flows from operating activities:
Net income	$ 154,533	$ 137,614
Adjustments to reconcile net income to net cash provided by operating activities:
Stock-based compensation	17,287	17,120
Depreciation and amortization	36,754	43,485
Deferred taxes	12,115	14,895
Loss on sale of property, plant and equipment	61	652
Gain (Loss) on Disposition of Business	0	(26,620)
Impairment of Long-Lived Assets to be Disposed of	42	6,134
Changes in assets and liabilities:
Accounts receivable	23,239	3,013
Inventories	1,835	2,517
Other current assets and income tax refund receivable	1,488	(12,099)
Accounts payable	(9,979)	(858)
Income taxes payable	16,333	110
Deferred income on shipments to distributors	2,020	(3,025)
Increase (Decrease) in Employee Related Liabilities	(42,105)	(55,572)
Increase (Decrease) in Other Accrued Liabilities	6,082	(3,964)
Net cash provided by operating activities	(219,705)	(123,402)
Cash flows from investing activities:
Purchase of property, plant and equipment	(14,321)	(14,310)
Proceeds from sale of property, plant, and equipment	1,473	205
Proceeds from sale of available-for-sale securities	18,101	24,540
Proceeds from maturity of available-for-sale securities	0	25,000
Proceeds from Divestiture of Businesses	0	42,199
Payments to Acquire Available-for-sale Securities	(716,304)	(75,224)
Payments to Acquire Investments	(606)	(2,337)
Net cash used in investing activities	(711,657)	73
Cash flows from financing activities:
Net issuance of restricted stock units	(5,416)	(5,206)
Proceeds from stock options exercised	5,160	19,911
Repurchase of common stock	(75,291)	(57,709)
Dividends paid	(101,462)	(93,627)
Net cash used in financing activities	(177,009)	(136,631)
Net decrease in cash and cash equivalents	(668,961)	(13,156)
Cash and cash equivalents:
Beginning of period	2,246,121
End of period	1,577,160		$ 2,246,121
Supplemental disclosures of cash flow information:
Cash paid (refunded), net during the period for income taxes	502	33,760
Cash paid for interest			$ 8,438
Noncash investing and financing activities:
Accounts payable related to property, plant, and equipment purchases	3,375	4,722
Noncash or Part Noncash Divestiture, Amount of Consideration Received	$ 0	$ 25,922