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Employee Benefits (Tables)
3 Months Ended
Mar. 29, 2014
Compensation and Retirement Disclosure [Abstract]  
Components of Net Periodic Benefit Cost for Defined Benefit Plans
The following table provides the components of net periodic benefit cost for our defined benefit plans for the three month period ended:
 
Pension Benefits
 
Supplemental
Retirement Benefits
 
March 29, 2014
 
March 30, 2013
 
March 29, 2014
 
March 30, 2013
Service cost
$
842

 
$
847

 
$
189

 
$
161

Interest cost
3,211

 
2,810

 
252

 
177

Expected return on plan assets
(4,278
)
 
(3,656
)
 

 

Amortization of prior service cost (credit)
(159
)
 
(150
)
 
165

 
165

Amortization of net loss (gain)
223

 
690

 
63

 
63

Net periodic (benefit) cost
$
(161
)
 
$
541

 
$
669

 
$
566