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Segment Information (Geographic Revenue) (Details) - USD ($) $ in Millions | 3 Months Ended | 12 Months Ended
--- | --- | ---
Sep. 30, 2016 | Jul. 01, 2016 | Apr. 01, 2016 | Jan. 01, 2016 | Oct. 02, 2015 | Jul. 03, 2015 | Apr. 03, 2015 | Jan. 02, 2015 | Sep. 30, 2016 | Oct. 02, 2015 | Oct. 03, 2014
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Net revenue | $ 835.4 | $ 751.7 | $ 775.1 | $ 926.8 | $ 880.8 | $ 810.0 | $ 762.1 | $ 805.5 | $ 3,289.0 | $ 3,258.4 | $ 2,291.5
Total Americas [Member] |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Net revenue |  |  |  |  |  |  |  |  | 92.1 | 99.8 | 73.0
UNITED STATES |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Net revenue |  |  |  |  |  |  |  |  | 63.3 | 66.8 | 47.5
Other Americas [Member] |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Net revenue |  |  |  |  |  |  |  |  | 28.8 | 33.0 | 25.5
Asia Pacific [Member] |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Net revenue |  |  |  |  |  |  |  |  | 3,145.8 | 3,105.8 | 2,170.9
China |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Net revenue |  |  |  |  |  |  |  |  | 2,324.6 | 2,249.2 | 1,574.4
Taiwan |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Net revenue |  |  |  |  |  |  |  |  | 474.2 | 506.9 | 322.2
South Korea |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Net revenue |  |  |  |  |  |  |  |  | 94.8 | 100.0 | 107.4
Asia |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Net revenue |  |  |  |  |  |  |  |  | 252.2 | 249.7 | 166.9
Europe, Middle East and Africa [Member] |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Net revenue |  |  |  |  |  |  |  |  | $ 51.1 | $ 52.8 | $ 47.6

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