v3.3.1.900
Schedule IV Supplementary Reinsurance Information (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2015
Dec. 31, 2014
Dec. 31, 2013
Supplementary Insurance Information [Abstract]      
Gross $ 9,160 $ 48,565 $ 104,976
Ceded to other companies 148,710 49,216 107,858
Assumed from other companies 2,653,666 2,458,787 2,099,183
Premiums written, Net $ 2,514,116 $ 2,458,136 $ 2,096,301
Percentage of amount to net 105.60% 100.00% 100.10%