XML 81 R70.htm IDEA: XBRL DOCUMENT v3.5.0.2
Reinsurance (Ceded credit risk) (Details) - USD ($)
$ in Thousands
9 Months Ended 12 Months Ended
Sep. 30, 2016
Dec. 31, 2015
Reinsurance (Textuals) [Abstract]    
Incurred but not reported recoverable $ 270,399 $ 214,863
Provision for uncollectible reinsurance relating to losses recoverable 5,140 4,997
Reinsurance Recoverable    
Ceded Credit Risk [Line Items]    
Reinsurance recoverable $ 480,678 $ 373,657
Percentage of total 100.00% 100.00%
Reinsurance Recoverable | A- or better    
Ceded Credit Risk [Line Items]    
Reinsurance recoverable $ 474,367 $ 368,638
Percentage of total 98.70% 98.70%
Reinsurance Recoverable | Top 10 reinsurers    
Ceded Credit Risk [Line Items]    
Reinsurance recoverable $ 401,760 $ 303,108
Percentage of total 83.60% 81.10%
Reinsurance Recoverable | Top 10 reinsurers | Swiss Re | AA-    
Ceded Credit Risk [Line Items]    
Reinsurance recoverable $ 84,388 $ 83,048
Percentage of total 17.70% 22.20%
Reinsurance Recoverable | Top 10 reinsurers | Fully collateralized reinsurers | NR    
Ceded Credit Risk [Line Items]    
Reinsurance recoverable $ 84,296  
Percentage of total 17.50%  
Reinsurance Recoverable | Top 10 reinsurers | Lloyds Syndicates | A plus    
Ceded Credit Risk [Line Items]    
Reinsurance recoverable $ 77,607 $ 66,356
Percentage of total 16.10% 17.80%
Reinsurance Recoverable | Top 10 reinsurers | Hannover Re | AA-    
Ceded Credit Risk [Line Items]    
Reinsurance recoverable $ 49,699 $ 43,765
Percentage of total 10.30% 11.70%
Reinsurance Recoverable | Top 10 reinsurers | Everest Re | A plus    
Ceded Credit Risk [Line Items]    
Reinsurance recoverable $ 46,130 $ 43,060
Percentage of total 9.60% 11.50%
Reinsurance Recoverable | Top 10 reinsurers | Munich Re | AA-    
Ceded Credit Risk [Line Items]    
Reinsurance recoverable $ 17,498 $ 18,707
Percentage of total 3.60% 5.00%
Reinsurance Recoverable | Top 10 reinsurers | Hamilton Re | A-    
Ceded Credit Risk [Line Items]    
Reinsurance recoverable $ 12,502 $ 10,898
Percentage of total 2.60% 2.90%
Reinsurance Recoverable | Top 10 reinsurers | Transatlantic Re | A plus    
Ceded Credit Risk [Line Items]    
Reinsurance recoverable $ 11,624 $ 11,923
Percentage of total 2.40% 3.20%
Reinsurance Recoverable | Top 10 reinsurers | Toa Re | A plus    
Ceded Credit Risk [Line Items]    
Reinsurance recoverable $ 9,011 $ 6,330
Percentage of total 1.90% 1.70%
Reinsurance Recoverable | Top 10 reinsurers | XL Re | A plus    
Ceded Credit Risk [Line Items]    
Reinsurance recoverable $ 9,005 $ 8,728
Percentage of total 1.90% 2.30%
Reinsurance Recoverable | Top 10 reinsurers | National Indemnity Company | AA plus    
Ceded Credit Risk [Line Items]    
Reinsurance recoverable   $ 10,293
Percentage of total   2.80%
Reinsurance Recoverable | Other reinsurers' balances greater than $1 million    
Ceded Credit Risk [Line Items]    
Reinsurance recoverable $ 73,005 $ 61,222
Percentage of total 15.20% 16.40%
Reinsurance Recoverable | Other reinsurers' balances less than $1 million    
Ceded Credit Risk [Line Items]    
Reinsurance recoverable $ 5,913 $ 9,327
Percentage of total 1.20% 2.50%