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Accumulated Other Comprehensive Income (Tables)
 3 Months Ended
Mar. 31, 2012
Other Comprehensive Income (Loss), Net of Tax [Abstract]  
Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block]
The following table sets forth accumulated other comprehensive income included in the consolidated balance sheets as of March 31, 2012 and December 31, 2011 (dollars in thousands): 
 
Foreign Currency Translation Adjustment
 
Defined Benefit Plans
 
Net Unrealized Gain/(Loss) on Cash Flow Hedges
 
Accumulated Other Comprehensive Income
Balance, December 31, 2011
$
42,394

 
$
(20
)
 
$
(4,479
)
 
$
37,895

Current period change
6,246

 
(409
)
 
446

 
6,283

Balance, March 31, 2012
$
48,640

 
$
(429
)
 
$
(4,033
)
 
$
44,178

The foreign currency translation adjustments for the three months ended March 31, 2012 related primarily to the Company’s operations with a functional currency in Australian and Canadian dollars.