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Non-operating income, net Non-operating income, net (Tables)
 12 Months Ended
Dec. 31, 2012
Non-operating (loss) income, net [Abstract]  
Schedule of Non-operating Income, net
The following table presents the components of Non-operating income, net:
 
Year Ended December 31,
 
2012
 
2011
 
2010
 
(In thousands)
Interest and dividend income
$
2,957

 
$
5,017

 
$
7,652

Unrealized gain (loss) on contingent interest derivative on Convertible Debentures
422

 
(1,125
)
 
(500
)
Income from transition services agreements
2,541

 
8,083

 
10,631

Realized net gain on investments
102

 
4,246

 
3,978

Other, net
(458
)
 
(4,691
)
 
(1,023
)
     Total non-operating income, net
$
5,564

 
$
11,530

 
$
20,738