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Accumulated Other Comprehensive Income (Loss)
 12 Months Ended
Dec. 31, 2011
Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract]  
Accumulated Other Comprehensive Income (Loss) [Text Block]
Accumulated Other Comprehensive Loss
The components of accumulated other comprehensive loss are as follows (in thousands):
 
2011
 
2010
Currency translation adjustments                                                                                                           
$
2,280

 
$
6,540

Unrealized loss on cash flow hedges, net of tax expense of $5,063 as of the year ended 2010
—

 
(1,793
)
Pension liability adjustments, net of tax benefit of $23,217 and $1,718 as of the years ended 2011 and 2010, respectively
(62,160
)
 
(25,030
)
Total accumulated other comprehensive loss            
$
(59,880
)
 
$
(20,283
)