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Plan of Restructuring - Narrative (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended | 12 Months Ended |
--- | --- | --- | --- | ---
Sep. 24, 2016 | Sep. 26, 2015 | Sep. 24, 2016 | Sep. 26, 2015 | Dec. 26, 2015 | Nov. 06, 2014
Restructuring Cost and Reserve [Line Items] |  |  |  |  |  |
Restructuring Charges, pre-tax | $ 5,370 | $ 8,438 | $ 29,811 | $ 22,522 | $ 34,931 |
November 2014 restructuring initiative [Member] |  |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |  |
Restructuring Charges, pre-tax |  |  | $ 29,811 |  | $ 34,931 |
November 2014 restructuring initiative [Member] | Minimum [Member] |  |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |  |
Expected percentage of workforce eliminated (in hundredths) | 3.00% |  | 3.00% |  |  | 2.00%
Restructuring costs, remaining expected costs | $ 17,000 |  | $ 17,000 |  |  |
November 2014 restructuring initiative [Member] | Maximum [Member] |  |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |  |
Expected percentage of workforce eliminated (in hundredths) | 4.00% |  | 4.00% |  |  | 3.00%
Restructuring costs, remaining expected costs | $ 22,000 |  | $ 22,000 |  |  |

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