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Debt (Interest Rate Swaps) (Details) - USD ($) | 12 Months Ended
--- | ---
Dec. 28, 2018 | Dec. 29, 2017 | Dec. 30, 2016
Derivative [Line Items] |  |  |
Interest expense | $ 99,310,000 | $ 63,972,000 | $ 68,331,000
Interest Rate Swap 1 [Member] |  |  |
Derivative [Line Items] |  |  |
Interest Rate Swap Term | 3 years |  |
Notional Amount | $ 200,000,000 |  |
Pay Fixed Rate | 1.1325% |  |
Receive Current Floating Rate | 2.5063% |  |
Fair Value | $ 4,171,000 |  |
Interest Rate Swap [Member] |  |  |
Derivative [Line Items] |  |  |
Portion of the change in fair value considered ineffective | 0 | 0 | 0
Interest expense | 1,700,000 | $ 500,000 | $ 100,000
Gain expected to be reclassified into earnings within the next twelve months | $ 2,800,000 |  |

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