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Defined Benefit Plans
6 Months Ended
Jun. 30, 2012
Defined Benefit Pension Plans and Defined Benefit Postretirement Plans Disclosure [Abstract]  
Defined Benefit Plans
Defined Benefit Plans
Net periodic pension and postretirement benefit costs for the Company's defined benefit pension plans and postretirement benefit plans cover foreign employees, union hourly employees and certain salaried employees. The components of net periodic pension and postretirement benefit costs for the three and six months ended June 30, 2012 and 2011 are as follows:
 
 
Pension Plans
 
Other Postretirement Benefits
 
 
Three months ended
June 30,
 
Six months ended
June 30,
 
Three months ended
June 30,
 
Six months ended
June 30,
 
 
2012
 
2011
 
2012
 
2011
 
2012
 
2011
 
2012
 
2011
 
 
(dollars in thousands)
Service costs
 
$
150

 
$
160

 
$
300

 
$
320

 
$

 
$

 
$

 
$

Interest costs
 
400

 
400

 
800

 
800

 
10

 
10

 
20

 
20

Expected return on plan assets
 
(420
)
 
(410
)
 
(850
)
 
(810
)
 

 

 

 

Amortization of prior service cost
 
10

 
10

 
10

 
10

 
(60
)
 
(60
)
 
(130
)
 
(130
)
Amortization of net (gain)/loss
 
260

 
170

 
530

 
350

 
(20
)
 
(20
)
 
(40
)
 
(40
)
Net periodic benefit cost
 
$
400

 
$
330

 
$
790

 
$
670

 
$
(70
)
 
$
(70
)
 
$
(150
)
 
$
(150
)

The Company contributed approximately $0.5 million and $4.5 million to its defined benefit pension plans during the three and six months ended June 30, 2012, respectively. The Company expects to contribute approximately $5.8 million to its defined benefit pension plans for the full year 2012.