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Goodwill (Tables)
 12 Months Ended
Dec. 31, 2013
Goodwill and Intangible Assets Disclosure [Abstract]  
Schedule of Goodwill [Table Text Block]
Changes in the carrying value of goodwill for the three years ended December 31, 2013 are as follows:
 
 
(In thousands)
Balance at January 1, 2011
 
$
114,963

Consideration paid related to prior business acquisitions
 
829

Acquisition of ICG
 
480,311

Balance at December 31, 2011
 
596,103

Impairment
 
(330,680
)
Balance at December 31, 2012
 
265,423

Impairment
 
(265,423
)
Balance at December 31, 2013
 
$
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