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Other Operating Expenses, Net (Schedule of Restructuring Reserve By Type of Cost) (Details) - Consolidation And Optimization Initiatives [Member]
$ in Thousands
6 Months Ended
Jun. 29, 2018
USD ($)
Restructuring Reserve [Roll Forward]  
Restructuring Reserve, Beginning Balance $ 1,308
Restructuring charges 7,958
Cash payments (5,850)
Restructuring Reserve, Ending Balance 3,416
Severance And Retention [Member]  
Restructuring Reserve [Roll Forward]  
Restructuring Reserve, Beginning Balance 1,308
Restructuring charges 4,427
Cash payments (4,514)
Restructuring Reserve, Ending Balance 1,221
Other Restructuring [Member]  
Restructuring Reserve [Roll Forward]  
Restructuring Reserve, Beginning Balance 0
Restructuring charges 3,531
Cash payments (1,336)
Restructuring Reserve, Ending Balance $ 2,195