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SCHEDULE IV-REINSURANCE
 12 Months Ended
Dec. 31, 2011
SCHEDULE IV-REINSURANCE [Abstract]  
SCHEDULE IV-REINSURANCE
MGIC INVESTMENT CORPORATION

SCHEDULE IV - REINSURANCE

MORTGAGE INSURANCE PREMIUMS EARNED
Years Ended December 31, 2011, 2010 and 2009


   
Gross
Amount
   
Ceded to
Other
Companies
   
Assumed
From
Other
Companies
   
Net
Amount
   
Percentage
of Amount
Assumed to
Net
 
   
(In thousands of dollars)
 
Year ended December 31,
                                       
2011
 
$
 1,170,868
   
$
50,924
   
$
3,891
   
$
1,123,835
     
0.3
%
                                         
2010
 
 
1,236,949
     
71,293
     
3,091
     
1,168,747
     
0.3
%
                                         
2009
 
 
1,406,977
     
107,975
     
3,339
     
1,302,341
     
0.3
%