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Divestiture (Details) - USD ($)
$ in Millions
3 Months Ended 9 Months Ended
Apr. 01, 2016
Apr. 03, 2015
Apr. 01, 2016
Apr. 03, 2015
Disposal Group, Including Discontinued Operation, Income Statement Disclosures [Abstract]        
Income from discontinued operations $ 0.2 $ 0.0 $ 0.5 $ 0.1
WiMAX        
Disposal Group, Including Discontinued Operation, Income Statement Disclosures [Abstract]        
Income from operations related to WiMAX 0.2 0.0 0.6 0.0
Gain on disposal 0.0 0.0 0.0 0.1
Income taxes 0.0 0.0 (0.1) 0.0
Income from discontinued operations $ 0.2 $ 0.0 $ 0.5 $ 0.1