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Non-operating (loss) income (Tables)
 6 Months Ended
Jun. 30, 2012
Non-operating (loss) income, net [Abstract]  
Schedule of Other Nonoperating Income (Expense) [Table Text Block]
The following table presents the components of Non-operating (loss) income, net:
 
Three Months Ended June 30,
 
Six Months Ended June 30,
 
2012
 
2011
 
2012
 
2011
 
(In thousands)
Interest and dividend income
$
605

 
$
1,579

 
$
905

 
$
3,670

Unrealized (loss) gain on contingent interest derivative on Convertible Debentures
(3,147
)
 
700

 
(3,960
)
 
250

Income from transition services agreements
1,086

 
2,271

 
2,179

 
5,733

Other, net
(641
)
 
1,599

 
(414
)
 
1,974

     Total non-operating (loss) income, net
$
(2,097
)
 
$
6,149

 
$
(1,290
)
 
$
11,627