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Income Taxes Income Taxes (Tables)
9 Months Ended
Sep. 29, 2018
Income Tax Disclosure [Abstract]  
Schedule of effective income tax rate reconciliation
The effective tax rates were as follows:
Three Months Ended
 
Nine Months Ended
September 29,
2018
 
September 30,
2017
 
September 29,
2018
 
September 30,
2017
14.5
%
 
65.5
%
 
42.9
%
 
68.7
%