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Schedule IV - Reinsurance
12 Months Ended
Dec. 31, 2016
Supplemental Schedule of Reinsurance Premiums for Insurance Companies [Abstract]  
Supplemental Schedule of Reinsurance Premiums for Insurance Companies
SCHEDULE IV. REINSURANCE
 
Property and Casualty Insurance
 
Direct Premium Written
 
Premiums Ceded to Other Companies
 
Premiums Assumed from Other Companies
 
Net Premiums Written
 
Percentage of Premiums Assumed to Net
Years Ended December 31,
 
 
 
 
 
 
 
 
 
2016
$
708,252

 
$
262,340

 
$
(96
)
 
$
445,816

 
%
2015
548,916

 
183,808

 
20,820

 
385,928

 
5.4
%
2014
417,769

 
144,404

 
18,984

 
292,349

 
6.5
%