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Non-operating income, net
 12 Months Ended
Dec. 31, 2015
Non-operating (loss) income, net [Abstract]  
Non-operating Income, Net
Non-operating Income, Net
The following table presents the components of Non-operating income, net:
 
Year Ended December 31,
 
2015
 
2014
 
2013
 
(In thousands)
Realized net gain (loss) on investments
$
185

 
$
(5
)
 
$
18,861

Unrealized (loss) gain on contingent interest derivative on Subordinated Convertible Debentures
(14,130
)
 
2,249

 
(17,801
)
Interest and dividend income
2,128

 
922

 
1,897

Other, net
1,152

 
1,712

 
343

Total non-operating (loss) income, net
$
(10,665
)
 
$
4,878

 
$
3,300


The realized net gain on investments in 2013 included gains of $15.8 million from the sale of certain cost method investments, and $3.0 million from the sale of the Company’s investment in the equity securities of a public company. The unrealized gains and losses on the contingent interest derivative on the Subordinated Convertible Debentures reflects the change in value of the derivative that results primarily from the changes in the Company’s stock price. Interest and dividend income is earned principally from the Company’s surplus cash balances and marketable securities.