Impairment of Long-Lived Assets (Details) - USD ($) $ in Thousands	3 Months Ended		12 Months Ended
	Sep. 23, 2017	Sep. 24, 2016	Jun. 24, 2017
Long Lived Assets Held-for-sale [Line Items]
Asset Impairment Charges			$ 7,517
Impairment of Long-Lived Assets to be Disposed of	$ 42	$ 6,134
Gain (Loss) on Disposition of Property Plant Equipment	(61)	(652)
Gain (Loss) on Disposition of Business	0	$ 26,620
MEMS [Member]
Long Lived Assets Held-for-sale [Line Items]
Proceeds from Sale of Other Property, Plant, and Equipment	42,200
Gain (Loss) on Disposition of Property Plant Equipment	$ 26,600