XML 130 R85.htm IDEA: XBRL DOCUMENT v2.4.0.8
Reinsurance (List of direct, assumed and ceded Reinsurance Amounts) (Details) (USD $)
 3 Months Ended 12 Months Ended
Dec. 31, 2013
Sep. 30, 2013
Jun. 30, 2013
Mar. 31, 2013
Dec. 31, 2012
Sep. 30, 2012
Jun. 30, 2012
Mar. 31, 2012
Dec. 31, 2013
Dec. 31, 2012
Dec. 31, 2011
Premiums Written:                      
Direct                 $ 2,133,793,000 $ 1,955,667,000 $ 1,725,396,000
Assumed                 43,650,000 50,938,000 51,515,000
Ceded premiums written                 (367,284,000) (339,722,000) (291,559,000)
Net                 1,810,159,000 1,666,883,000 1,485,352,000
Premiums Earned:                      
Direct                 2,048,530,000 1,873,007,000 1,693,021,000
Assumed                 44,464,000 65,884,000 29,011,000
Ceded premiums earned                 (356,922,000) (354,772,000) (282,719,000)
Total Net Premiums Earned 451,312,000 437,568,000 426,252,000 420,940,000 406,853,000 406,225,000 392,212,000 378,829,000 1,736,072,000 1,584,119,000 1,439,313,000
Losses and loss expenes incurred:                      
Direct                 1,370,293,000 2,394,640,000 1,499,340,000
Assumed                 32,678,000 29,175,000 20,788,000
Ceded losses and loss expenses incurred                 (281,233,000) (1,302,825,000) (445,141,000)
Net                 1,121,738,000 1,120,990,000 1,074,987,000
Hurricane Sandy [Member]
                      
Losses and loss expenes incurred:                      
Losses on a gross basis                 136,000,000    
Losses on a net basis                 46,600,000    
Flood loss handling fee                   18,300,000  
Hurricane Sandy [Member] | National Flood Insurance Program [Member]
                      
Losses and loss expenes incurred:                      
Ceded losses and loss expenses incurred                 (1,000,000,000)    
Hurricane Sandy [Member] | Catatrophe excess of loss treaty [Member]
                      
Losses and loss expenes incurred:                      
Ceded losses and loss expenses incurred                 $ 89,400,000