XML 21 R30.htm IDEA: XBRL DOCUMENT v2.4.0.8
Investments - Additional Information (Detail) (USD $)
 3 Months Ended 9 Months Ended
Sep. 30, 2014
Securities
Individual
Sep. 30, 2013
Sep. 30, 2014
Securities
Individual
Sep. 30, 2013
Dec. 31, 2013
Investments Schedule [Abstract]          
Individual fixed maturity held in unrealized loss position 126   126    
Equity securities held in unrealized loss position 2   2    
Individual fixed maturity held in unrealized loss position 21   21    
Carrying value of other investments $ 11,228,000   $ 11,228,000   $ 10,591,000
Impairment losses recognized 200,000   200,000 2,200,000  
Net realized gains/(losses) on investments (152,000) (654,000) 181,000 (1,921,000)  
Net realized gain(loss)outside OTTI     $ 400,000 $ 200,000