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Operating Segments and Geographic Information - Net Revenue by Geographic Region (Details) $ in Millions	3 Months Ended								12 Months Ended
	Jul. 01, 2017 USD ($) region	Apr. 01, 2017 USD ($)	Dec. 31, 2016 USD ($)	Oct. 01, 2016 USD ($)	Jul. 02, 2016 USD ($)	Apr. 02, 2016 USD ($)	Jan. 02, 2016 USD ($)	Oct. 03, 2015 USD ($)	Jul. 01, 2017 USD ($) region	Jul. 02, 2016 USD ($)	Jun. 27, 2015 USD ($)
Revenues from External Customers and Long-Lived Assets [Line Items]
Number of geographic regions in which entity operates (in region) | region	3								3
Net revenue	$ 198.1	$ 196.0	$ 206.5	$ 210.8	$ 224.1	$ 220.4	$ 232.1	$ 229.7	$ 811.4	$ 906.3	$ 873.9
Geographic Concentration Risk | Net Revenue
Revenues from External Customers and Long-Lived Assets [Line Items]
Percentage of net revenue									100.00%	100.00%	100.00%
Total Americas
Revenues from External Customers and Long-Lived Assets [Line Items]
Net revenue									$ 378.6	$ 462.6	$ 486.8
Total Americas | Geographic Concentration Risk | Net Revenue
Revenues from External Customers and Long-Lived Assets [Line Items]
Percentage of net revenue									46.70%	51.10%	55.70%
United States
Revenues from External Customers and Long-Lived Assets [Line Items]
Net revenue									$ 307.3	$ 396.6	$ 424.3
United States | Geographic Concentration Risk | Net Revenue
Revenues from External Customers and Long-Lived Assets [Line Items]
Percentage of net revenue									37.90%	43.80%	48.50%
Other Americas
Revenues from External Customers and Long-Lived Assets [Line Items]
Net revenue									$ 71.3	$ 66.0	$ 62.5
Other Americas | Geographic Concentration Risk | Net Revenue
Revenues from External Customers and Long-Lived Assets [Line Items]
Percentage of net revenue									8.80%	7.30%	7.20%
Total Asia-Pacific
Revenues from External Customers and Long-Lived Assets [Line Items]
Net revenue									$ 173.2	$ 166.3	$ 144.5
Total Asia-Pacific | Geographic Concentration Risk | Net Revenue
Revenues from External Customers and Long-Lived Assets [Line Items]
Percentage of net revenue									21.30%	18.30%	16.50%
Greater China
Revenues from External Customers and Long-Lived Assets [Line Items]
Net revenue									$ 100.8	$ 103.2	$ 83.1
Greater China | Geographic Concentration Risk | Net Revenue
Revenues from External Customers and Long-Lived Assets [Line Items]
Percentage of net revenue									12.40%	11.30%	9.50%
Other Asia-Pacific
Revenues from External Customers and Long-Lived Assets [Line Items]
Net revenue									$ 72.4	$ 63.1	$ 61.4
Other Asia-Pacific | Geographic Concentration Risk | Net Revenue
Revenues from External Customers and Long-Lived Assets [Line Items]
Percentage of net revenue									8.90%	7.00%	7.00%
Total EMEA
Revenues from External Customers and Long-Lived Assets [Line Items]
Net revenue									$ 259.6	$ 277.4	$ 242.6
Total EMEA | Geographic Concentration Risk | Net Revenue
Revenues from External Customers and Long-Lived Assets [Line Items]
Percentage of net revenue									32.00%	30.60%	27.80%
Switzerland
Revenues from External Customers and Long-Lived Assets [Line Items]
Net revenue									$ 124.0	$ 135.6	$ 97.7
Switzerland | Geographic Concentration Risk | Net Revenue
Revenues from External Customers and Long-Lived Assets [Line Items]
Percentage of net revenue									15.30%	15.00%	11.20%
Other EMEA
Revenues from External Customers and Long-Lived Assets [Line Items]
Net revenue									$ 135.6	$ 141.8	$ 144.9
Other EMEA | Geographic Concentration Risk | Net Revenue
Revenues from External Customers and Long-Lived Assets [Line Items]
Percentage of net revenue									16.70%	15.60%	16.60%

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