XML 55 R45.htm IDEA: XBRL DOCUMENT v3.10.0.1
Investments In Securities (Schedule Of Gross Realized Gains And Losses On Securities) (Details) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2018
Sep. 30, 2017
Sep. 30, 2018
Sep. 30, 2017
Debt Securities, Available-for-sale [Line Items]        
Total, Gross realized gains     $ 688 $ 1,232
Total, Gross realized losses     (63) (255)
Net realized gains from securities     625 977
Gain on other investments     4 13
Total     4 13
Net realized investment gains $ 188 $ 804 629 990
Issuer Obligations Of U S States Territories And Political Subdivisions Special Revenue [Member]        
Debt Securities, Available-for-sale [Line Items]        
Total, Gross realized gains     0 0
Total, Gross realized losses     0 0
Corporate Debt Securities        
Debt Securities, Available-for-sale [Line Items]        
Total, Gross realized gains     0 0
Common Stocks And Nonredeemable Preferred Stocks        
Debt Securities, Available-for-sale [Line Items]        
Equity Securities, Realized Gain     688 1,232
Equity Securities, Realized Loss     (63) (255)
General Obligations Of U.S. States, Territories And Political Subdivisions        
Debt Securities, Available-for-sale [Line Items]        
Total, Gross realized losses     0 0
Impairments of Debt And Equity Securities [Member]        
Debt Securities, Available-for-sale [Line Items]        
Total, Gross realized losses     $ 0 $ 0