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Restructuring Restructuring (Narrative) (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended |
--- | --- | --- | ---
Jun. 30, 2018 | Jul. 01, 2017 | Jun. 30, 2018 | Jul. 01, 2017 | Sep. 30, 2017
Restructuring Cost and Reserve |  |  |  |  |
Non-cash inventory reserves | $ 2,398 | $ 0 | $ 9,727 | $ 0 |
Restructuring | (1,549) | $ 0 | 22,509 | $ 0 |
Restructuring Reserve | 8,022 |  | 8,022 |  | $ 1,168
2018 Plan |  |  |  |  |
Restructuring Cost and Reserve |  |  |  |  |
Restructuring |  |  | 32,236 |  |
Restructuring Reserve | 7,430 |  | 7,430 |  |
2018 Plan | Other Restructuring |  |  |  |  |
Restructuring Cost and Reserve |  |  |  |  |
Restructuring |  |  | 1,951 |  |
2018 Plan | Other Restructuring | Inventory |  |  |  |  |
Restructuring Cost and Reserve |  |  |  |  |
Non-cash inventory reserves |  |  | 9,727 |  |
2018 Plan | Other Restructuring | Intangible assets |  |  |  |  |
Restructuring Cost and Reserve |  |  |  |  |
Restructuring Costs and Asset Impairment Charges |  |  | 12,316 |  |
2018 Plan | Other Restructuring | Long-lived assets |  |  |  |  |
Restructuring Cost and Reserve |  |  |  |  |
Restructuring Costs and Asset Impairment Charges |  |  | 2,203 |  |
2018 Plan | Employee Severance |  |  |  |  |
Restructuring Cost and Reserve |  |  |  |  |
Restructuring |  |  | 6,039 |  |
2016 Plan |  |  |  |  |
Restructuring Cost and Reserve |  |  |  |  |
Restructuring Reserve | $ 592 |  | $ 592 |  |

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