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Net Investment Income
 3 Months Ended
Mar. 31, 2013
Net Investment Income [Abstract]  
Net Investment Income [Text Block]
Net Investment Income
Net investment income consists of the following: 
 
For the Three Months Ended
 
March 31,
(In thousands)
2013
 
2012
Investment income earned on:
 
 
 
Fixed maturity securities, including cash and cash equivalents and loans receivable
$
117,836

 
$
119,288

Investment funds
10,934

 
27,623

Arbitrage trading account
3,783

 
6,481

Equity securities available for sale
2,247

 
3,150

Real estate
3,141

 
2,176

Gross investment income
137,941

 
158,718

Investment expense
(2,012
)
 
(1,099
)
Net investment income
$
135,929

 
$
157,619