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Other Income (Expense) (Notes)
9 Months Ended
Sep. 30, 2014
Other Income and Expenses [Abstract]  
Other Income (Expense)
Other Income (Expense)

Other income (expense) is summarized as follows (in thousands):
 
 
Three Months Ended September 30,
 
Nine Months Ended September 30,
 
2014
 
2013
 
2014
 
2013
Realized gain on sale of marketable securities
$

 
$
814

 
$

 
$
1,392

Change in fair value of the contingent purchase price liability
597

 
(172
)
 
(59
)
 
(559
)
Miscellaneous other income (expense)

 
51

 

 
48

Total other income (expense)
$
597

 
$
693

 
$
(59
)
 
$
881