XML 75 R44.htm IDEA: XBRL DOCUMENT v2.3.0.15
Investments (Gross Investment Gains And Losses On Investments) (Details) (USD $)
In Thousands
3 Months Ended9 Months Ended
Sep. 30, 2011
Sep. 30, 2010
Sep. 30, 2011
Sep. 30, 2010
Investments    
Gross investment gains $ 17,306$ 12,226$ 26,690
Gross investment losses$ 23,873 $ 24,145$ 7,031