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Pension and Other Post-Retirement Benefit Plans
 9 Months Ended
Sep. 24, 2016
Compensation and Retirement Disclosure [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 plans for the three months ended September 24, 2016 and September 26, 2015:
 
Pension Plans
 
September 24, 2016
 
September 26, 2015
 
(in thousands)
Service cost
$
655


$
1,149

Interest cost
2,773


3,335

Expected return on plan assets
(3,038
)

(4,383
)
Amortization of prior service benefit
(142
)

(150
)
Amortization of net loss
503


845

Settlements
788

 
—

Net periodic cost
$
1,539

 
$
796


The following table provides the components of net periodic cost for the Company’s pension plans for the nine months ended September 24, 2016 and September 26, 2015:
 
Pension Plans
 
September 24, 2016
 
September 26, 2015
 
(in thousands)
Service cost
$
1,848

 
$
3,448

Interest cost
9,357

 
10,006

Expected return on plan assets
(11,028
)
 
(13,147
)
Amortization of prior service benefit
(430
)
 
(451
)
Amortization of net loss
1,594

 
2,636

Settlements
788

 
—

Net periodic cost
$
2,129

 
$
2,492


The net periodic cost for the Company’s post-retirement benefit plan for the three and nine months ended September 24, 2016 and September 26, 2015 was insignificant.