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Operating Segments and Geographic Information (Details 4) $ in Millions	3 Months Ended								12 Months Ended
	Jul. 02, 2016 USD ($)	Apr. 02, 2016 USD ($)	Jan. 02, 2016 USD ($)	Oct. 03, 2015 USD ($)	Jun. 27, 2015 USD ($)	Mar. 28, 2015 USD ($)	Dec. 27, 2014 USD ($)	Sep. 27, 2014 USD ($)	Jul. 02, 2016 USD ($) customer	Jun. 27, 2015 USD ($) customer	Jun. 28, 2014 USD ($) customer
Revenues from External Customers and Long-Lived Assets [Line Items]
Net revenue	$ 224.1	$ 220.4	$ 232.1	$ 229.7	$ 219.8	$ 212.4	$ 226.4	$ 215.3	$ 906.3	$ 873.9	$ 926.9
OSP
Revenues from External Customers and Long-Lived Assets [Line Items]
Number of significant customers by revenue (in customer) | customer									1	1	1
NE and SE
Revenues from External Customers and Long-Lived Assets [Line Items]
Number of significant customers by revenue (in customer) | customer									0	0	1
Customer Concentration Risk | Net Revenue | Customer A | OSP
Revenues from External Customers and Long-Lived Assets [Line Items]
Net revenue									$ 190.1	$ 143.0	$ 118.2
Customer Concentration Risk | Net Revenue | Customer B | NE and SE
Revenues from External Customers and Long-Lived Assets [Line Items]
Net revenue											$ 106.6

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 225
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03.1)
-URI http://asc.fasb.org/extlink&oid=63488584&loc=d3e20235-122688

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