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Pension and Severance Benefits
 9 Months Ended
Sep. 30, 2014
Compensation and Retirement Disclosure [Abstract]  
Pension and Severance Benefits
Pension and Severance Benefits
Net pension expense from our defined benefit and severance plans are primarily comprised of severance plans covering Central American employees and consists of the following: 
 
Quarter Ended September 30,
 
Nine Months Ended September 30,
(In thousands)
2014
 
2013
 
2014
 
2013
Service cost
$
1,855

 
$
1,864

 
$
5,565

 
$
5,592

Interest on projected benefit obligation
1,411

 
1,300

 
4,241

 
3,894

Expected return on plan assets
(334
)
 
(333
)
 
(1,005
)
 
(996
)
Recognized actuarial loss
265

 
310

 
797

 
922

Amortization of prior service cost
32

 
32

 
96

 
96

Defined benefit and severance plan expense
$
3,229

 
$
3,173

 
$
9,694

 
$
9,508