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Contingencies - Narrative (Details) - USD ($) $ in Millions | Jun. 30, 2019 | Dec. 30, 2018
--- | --- | ---
Loss Contingencies [Line Items] |  |
Accrual for litigation costs | $ 11.0 | $ 12.8
Loss contingency, estimate of possible loss | 10.0 |
Minimum |  |
Loss Contingencies [Line Items] |  |
Loss contingency, portion not accrued | 0.1 |
Maximum |  |
Loss Contingencies [Line Items] |  |
Loss contingency, portion not accrued | 3.7 |
Prepaid Expenses and Other Current Assets |  |
Loss Contingencies [Line Items] |  |
Insurance recoveries | $ 4.6 | $ 6.1

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