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Income Taxes Narrative (Details)
$ in Thousands
3 Months Ended
Mar. 30, 2019
USD ($)
New Accounting Pronouncements or Change in Accounting Principle [Line Items]  
Reclassification of Stranded Tax Effects (ASU 2018-02) $ 0
Retained Earnings  
New Accounting Pronouncements or Change in Accounting Principle [Line Items]  
Reclassification of Stranded Tax Effects (ASU 2018-02) $ 739