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Investment Income and Other (Tables)
3 Months Ended
Mar. 31, 2012
Nonoperating Income (Expense) [Abstract]  
Schedule of Investment Income and Other
: (in thousands):
 
Three Months Ended
 
March 31,
 
2012
 
2011
Dividend income
$
975

 
$
1,135

Realized gains on sale of marketable securities

 
154

Other revenue
85

 
123

 
$
1,060

 
$
1,412