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Post-Retirement Health Care
9 Months Ended
Sep. 29, 2018
Retirement Benefits [Abstract]  
Post-Retirement Health Care
Post-Retirement Health Care

The following table sets forth the components of net periodic benefit costs included in the Condensed Consolidated Statements of Comprehensive Income (in thousands):
 
Three Months Ended
 
Nine Months Ended
 
September 29,
2018
 
September 30,
2017
 
September 29,
2018
 
September 30,
2017
Service cost
$
213

 
$
185

 
$
639

 
$
556

Interest cost
197

 
206

 
591

 
619

Amortization of net (gain) loss
32

 
6

 
95

 
19

Net periodic post-retirement benefit cost
$
442

 
$
397

 
$
1,325

 
$
1,194