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Employee Benefit Plans
 9 Months Ended
Sep. 30, 2014
Compensation and Retirement Disclosure [Abstract]  
Employee Benefit Plans
Employee Benefit Plans
The following are components of the net periodic benefit cost for the pension and postretirement benefit plans maintained by the Company for the three and nine months ended September 30, 2014 and 2013:
 
 
Pension Benefits
(in thousands)
Three months ended
September 30,
 
Nine months ended
September 30,
2014
 
2013
 
2014
 
2013
Service cost
$
45

 
$
—

 
$
135

 
$
—

Interest cost
1,193

 
1,057

 
3,580

 
3,171

Expected return on plan assets
(1,903
)
 
(1,751
)
 
(5,711
)
 
(5,254
)
Recognized net actuarial loss
234

 
382

 
701

 
1,147

Benefit income
$
(431
)
 
$
(312
)
 
$
(1,295
)
 
$
(936
)

 
 
Postretirement Benefits
(in thousands)
Three months ended
September 30,
 
Nine months ended
September 30,
2014
 
2013
 
2014
 
2013
Service cost
$
173

 
$
210

 
$
516

 
$
631

Interest cost
377

 
342

 
1,133

 
1,025

Amortization of prior service cost
(136
)
 
(136
)
 
(408
)
 
(408
)
Recognized net actuarial loss
203

 
368

 
609

 
1,105

Benefit cost
$
617

 
$
784

 
$
1,850

 
$
2,353