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Pension and Other Post-Retirement Benefit Plans
 6 Months Ended
Jul. 01, 2017
Retirement Benefits [Abstract]  
PENSION AND OTHER POST-RETIREMENT BENEFIT PLANS
PENSION AND OTHER POST-RETIREMENT BENEFIT PLANS
The following table provides the components of net periodic cost for the Company’s pension, deferred compensation and executive supplemental life insurance retirement plans:
 
Three Months Ended
 
Six Months Ended
 
July 1, 2017
 
June 25, 2016
 
July 1, 2017
 
June 25, 2016
 
(in thousands)
Service cost
$
774


$
639

 
$
1,528

 
$
1,193

Interest cost
2,939


3,220

 
5,765

 
6,584

Expected return on plan assets
(3,485
)

(3,998
)
 
(6,935
)
 
(7,990
)
Amortization of prior service credit
(139
)

(144
)
 
(258
)
 
(288
)
Amortization of net loss
1,047


545

 
2,013

 
1,091

Net periodic cost
$
1,136

 
$
262

 
$
2,113

 
$
590


The net periodic cost for the Company’s post-retirement benefit plan for the three and six months ended July 1, 2017 and June 25, 2016 was not significant.