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Indebtedness (Tables)
12 Months Ended
Dec. 31, 2012
Debt Disclosure [Abstract]  
Convenants in the Line of Credit
 
 
Required as of
 
Actual as of
 
 
December 31, 2012
 
December 31, 2012
Consolidated net worth
 
$824 million
 
$1.1 billion
Statutory surplus
 
Not less than $750 million
 
$1.1 billion
Debt-to-capitalization ratio1
 
Not to exceed 35%
 
20.3%
A.M. Best financial strength rating
 
Minimum of A-
 
A