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PENSION AND SUPPLEMENTAL EXECUTIVE RETIREMENT PLANS (Tables)
9 Months Ended
Sep. 30, 2015
Pension Plan  
PENSION PLANS  
Schedule of components of net periodic benefit cost
The following table sets forth the components of net periodic benefit cost for the Pension Plan:
 
 
Three Months Ended
September 30,
 
Nine Months Ended
September 30,
(dollars in thousands)
2015
 
2014
 
2015
 
2014
Interest cost
$
349

 
$
366

 
$
1,045

 
$
1,098

Expected return on plan assets
(471
)
 
(524
)
 
(1,415
)
 
(1,572
)
Amortization of net actuarial losses
392

 
304

 
1,178

 
912

Net periodic cost
$
270

 
$
146

 
$
808

 
$
438

SERPs  
PENSION PLANS  
Schedule of components of net periodic benefit cost
The following table sets forth the components of net periodic benefit cost for the SERPs:
 
 
Three Months Ended
September 30,
 
Nine Months Ended
September 30,
(dollars in thousands)
2015
 
2014
 
2015
 
2014
Interest cost
$
110

 
$
113

 
$
330

 
$
339

Amortization of net actuarial losses
27

 
1

 
82

 
3

Amortization of net transition obligation
4

 
4

 
12

 
12

Amortization of prior service cost
5

 
5

 
15

 
15

Net periodic cost
$
146

 
$
123

 
$
439

 
$
369