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Restructuring Restructuring (Narrative) (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended | 12 Months Ended
--- | --- | --- | ---
Mar. 30, 2019 | Mar. 31, 2018 | Mar. 30, 2019 | Mar. 31, 2018 | Sep. 29, 2018
Restructuring Cost and Reserve |  |  |  |  |
Non-cash inventory reserves | $ 0 | $ 7,329 | $ 0 | $ 7,329 |
Restructuring | 0 | $ 24,058 | 0 | $ 24,058 |
Restructuring reserve | 4,774 |  | 4,774 |  | $ 8,113
2018 Plan |  |  |  |  |
Restructuring Cost and Reserve |  |  |  |  |
Restructuring reserve | 4,642 |  | 4,642 |  |
2018 Plan | Employee Severance |  |  |  |  |
Restructuring Cost and Reserve |  |  |  |  |
Restructuring |  |  |  |  | 7,969
2018 Plan | Facility Closing |  |  |  |  |
Restructuring Cost and Reserve |  |  |  |  |
Restructuring |  |  |  |  | 3,130
2018 Plan | Other Restructuring |  |  |  |  |
Restructuring Cost and Reserve |  |  |  |  |
Restructuring |  |  |  |  | 3,217
2018 Plan | Other Restructuring | Inventory |  |  |  |  |
Restructuring Cost and Reserve |  |  |  |  |
Non-cash inventory reserves |  |  |  |  | 12,198
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 |  |  |  |  | $ 2,162
2016 Plan |  |  |  |  |
Restructuring Cost and Reserve |  |  |  |  |
Restructuring reserve | $ 132 |  | $ 132 |  |

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