Divestiture (Details) - Discontinued Operations, Disposed of by Sale - USD ($) $ in Millions		12 Months Ended
	Sep. 02, 2011	Jul. 03, 2015	Jun. 27, 2014	Jun. 28, 2013	Sep. 27, 2013
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Payment on divestiture payables		$ 1.6
WiMAX
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Proceeds from divestiture of businesses	$ 0.4
Proceeds from Contingent Payments		0.1
Discontinued operations contingent consideration	$ 2.8
Potential cash payments to EION for collections of WiMAX receivables		2.0
WiMax accounts receivables, written off					$ 0.4
Accrued Liabilities related to disposition of WiMAX		0.0	$ 0.1
Disposal Group, Including Discontinued Operation, Income Statement Disclosures [Abstract]
Revenues		0.0	0.0	$ 0.1
Income (loss) from operations of WiMAX		0.0	1.2	(4.3)
Gain on disposal		0.1	0.0	0.4
Income taxes		0.0	(0.3)	(0.2)
Income (loss) from discontinued operations, net of tax		$ 0.1	$ 0.9	$ (4.1)