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Defined Benefit Plans (Tables)
9 Months Ended
Sep. 28, 2016
Compensation and Retirement Disclosure [Abstract]  
Components of net periodic benefit cost
The components of net periodic benefit cost were as follows:

 
Quarter Ended
 
Three Quarters Ended
 
September 28, 2016
 
September 30, 2015
 
September 28, 2016
 
September 30, 2015
 
(In thousands)
Pension Plan:
 
 
 
 
 
 
 
Service cost
$

 
$
95

 
$
105

 
$
285

Interest cost

 
745

 

 
2,237

Expected return on plan assets

 
(877
)
 

 
(2,631
)
Amortization of net loss

 
434

 

 
1,300

Net periodic benefit cost
$

 
$
397

 
$
105

 
$
1,191

 
 
 
 
 
 
 
 
Other Defined Benefit Plans:
 
 
 
 
 
 
 
Interest cost
$
23

 
$
26

 
$
69

 
$
80

Amortization of net loss
21

 
20

 
64

 
59

Net periodic benefit cost
$
44

 
$
46

 
$
133

 
$
139