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Benefit Plans (Tables)
6 Months Ended
Jul. 01, 2016
Defined Benefit Pension Plans and Defined Benefit Postretirement Plans Disclosure [Abstract]  
Schedule of Defined Benefit Plan, Change in Benefit Obligation
The change in net defined benefit plan liability is as follows (in thousands):
At January 1, 2016
$
7,121

Net defined benefit cost
390

Benefit payments
(70
)
Foreign currency translation
116

At July 1, 2016
$
7,557

Schedule of Net Defined Benefit Cost
Net defined benefit cost is comprised of the following (in thousands):
 
Three Months Ended
 
Six Months Ended
 
July 1, 2016
 
July 3, 2015
 
July 1, 2016
 
July 3, 2015
Service cost
$
110

 
$
78

 
$
218

 
$
157

Interest cost
45

 
15

 
88

 
30

Amortization of net loss
47

 
12

 
93

 
26

Expected return on plan assets
(4
)
 
(3
)
 
(9
)
 
(6
)
Net defined benefit cost
$
198

 
$
102

 
$
390

 
$
207