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PENSION AND OTHER POST-RETIREMENT BENEFIT PLANS
 9 Months Ended
Sep. 28, 2014
Compensation and Retirement Disclosure [Abstract]  
PENSION AND OTHER POST-RETIREMENT BENEFIT PLANS
PENSION AND OTHER POST-RETIREMENT BENEFIT PLANS
Components of net periodic benefit cost consisted of the following:
 
Pension Benefits
 
Other Benefits
 
Three Months Ended
 
Three Months Ended
 
September 28,
2014
 
September 29,
2013
 
September 28,
2014
 
September 29,
2013
Service cost
$
6,670

 
$
7,830

 
$
177

 
$
274

Interest cost
12,218

 
10,984

 
2,927

 
2,686

Expected return on plan assets
(18,519
)
 
(18,277
)
 
—

 
—

Amortization of prior service cost
(167
)
 
106

 
154

 
209

Recognized net actuarial loss (gains)
5,838

 
10,106

 
(36
)
 
(73
)
Administrative expenses
193

 
270

 
23

 
24

Net periodic benefit cost
$
6,233

 
$
11,019

 
$
3,245

 
$
3,120


We made contributions of $24,696 and $4,105 to the pension plans and other benefits plans, respectively, during the third quarter of 2014. In the third quarter of 2013, we made contributions of $28,647 and $6,254 to our pension plans and other benefits plans, respectively. The contributions in 2014 and 2013 also included benefit payments from our non-qualified pension plans and post-retirement benefit plans.
Components of net periodic benefit cost consisted of the following:
 
Pension Benefits
 
Other Benefits
 
Nine Months Ended
 
Nine Months Ended
 
September 28,
2014
 
September 29,
2013
 
September 28,
2014
 
September 29,
2013
Service cost
$
20,003

 
$
23,528

 
$
530

 
$
821

Interest cost
36,643

 
32,986

 
8,778

 
8,063

Expected return on plan assets
(55,537
)
 
(54,862
)
 
—

 
—

Amortization of prior service cost
(501
)
 
317

 
462

 
463

Recognized net actuarial loss (gains)
17,511

 
30,324

 
(107
)
 
(55
)
Administrative expenses
586

 
537

 
78

 
74

Net periodic benefit cost
$
18,705

 
$
32,830

 
$
9,741

 
$
9,366


We made contributions of $26,669 and $14,777 to the pension plans and other benefits plans, respectively, during the first nine months of 2014. In the first nine months of 2013, we made contributions of $29,875 and $18,275 to our pension plans and other benefits plans, respectively. The contributions in 2014 and 2013 also included benefit payments from our non-qualified pension plans and post-retirement benefit plans.