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Restructuring - Narrative (Details) - USD ($) $ in Thousands | 3 Months Ended | 12 Months Ended |
--- | --- | --- | ---
Mar. 30, 2019 | Dec. 28, 2019 | Dec. 29, 2018 | Dec. 30, 2017 | Jun. 30, 2017
Restructuring Cost and Reserve [Line Items] |  |  |  |  |
Impairment of operating lease right-of-use asset (recorded in Restructuring charges) |  | $ 4,664 | $ 17,349 | $ 7,196 |
Q2 2019 Sales Plan |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |
Impairment of operating lease right-of-use asset (recorded in Restructuring charges) |  | 2,000 |  |  |
December 2018 Plan |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |
Impairment of operating lease right-of-use asset (recorded in Restructuring charges) |  | 0 | 4,800 |  |
June 2018 Plan |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |
Impairment of operating lease right-of-use asset (recorded in Restructuring charges) |  | (100) | 4,200 |  |
Restructuring cost incurred to date |  | 4,100 |  |  |
June 2017 Plan |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |
Impairment of operating lease right-of-use asset (recorded in Restructuring charges) | $ 1,000 | 2,700 | 8,400 | 8,000 |
Restructuring cost incurred to date |  | 19,100 |  |  |
Minimum | June 2017 Plan |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |
Total expected restructuring cost |  | 20,000 |  |  |
Maximum | June 2017 Plan |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |
Total expected restructuring cost |  | 21,500 |  |  |
Lease Termination & Fixed Assets |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |
Impairment of operating lease right-of-use asset (recorded in Restructuring charges) |  | $ 2,716 | $ 7,379 | $ 811 |
Lease Termination & Fixed Assets | June 2017 Plan |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |
Impairment of operating lease right-of-use asset (recorded in Restructuring charges) | $ 2,700 |  |  |  |
Percentage of facility vacated |  |  |  | 100.00% |
Hyderabad | Hyderabad | Disposed of by Sale |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |
Ownership percentage |  |  |  |  | 100.00%

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