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Defined Benefit Plans
 3 Months Ended
Mar. 31, 2012
Defined Benefit Pension Plans and Defined Benefit Postretirement Plans Disclosure [Abstract]  
Pension and Other Postretirement Benefits Disclosure [Text Block]
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 months ended March 31, 2012 and 2011 are as follows:
 
 
Pension Plans
 
Other Postretirement Benefits
 
 
Three months ended
March 31,
 
Three months ended
March 31,
 
 
2012
 
2011
 
2012
 
2011
 
 
(dollars in thousands)
Service costs
 
$
150

 
$
160

 
$
—

 
$
—

Interest costs
 
400

 
400

 
10

 
10

Expected return on plan assets
 
(430
)
 
(400
)
 
—

 
—

Amortization of prior service cost
 
—

 
—

 
(70
)
 
(70
)
Amortization of net (gain)/loss
 
270

 
180

 
(20
)
 
(20
)
Net periodic benefit cost
 
$
390

 
$
340

 
$
(80
)
 
$
(80
)
The Company contributed approximately $4.0 million to its defined benefit pension plans during the three months ended March 31, 2012. The Company expects to contribute approximately $5.8 million to its defined benefit pension plans for the full year 2012.