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Accumulated Other Comprehensive Loss (Tables)
 6 Months Ended
Jun. 30, 2012
Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract]  
Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block]
Accumulated Other Comprehensive Loss was comprised of the following:
 
June 30, 2012
 
December 31, 2011
Foreign currency translation adjustments
$
32,222

 
$
34,477

Joint venture cash flow hedges
(4,634
)
 
(3,841
)
Unrecognized losses of employee benefit plans, net of tax
(137,543
)
 
(144,084
)
Total
$
(109,955
)
 
$
(113,448
)