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Accumulated Other Comprehensive Income (Notes)
 3 Months Ended
Mar. 31, 2015
Statement of Comprehensive Income [Abstract]  
Comprehensive Income (Loss) Note [Text Block]
9. Accumulated Other Comprehensive Loss
The components of accumulated other comprehensive income (loss) were as follows (amounts in thousands):

 
Foreign currency translation adjustment
 
Changes in fair value of derivative, net of tax
 
Accumulated other comprehensive income (loss)
Balance at December 31, 2014
(4,448
)
 
(122
)
 
(4,570
)
Other comprehensive income
(3,724
)
 
47

 
(3,677
)
Balance at March 31, 2015
$
(8,172
)
 
$
(75
)
 
$
(8,247
)