XML 83 R37.htm IDEA: XBRL DOCUMENT v2.3.0.15
Investment Securities (Gross Realized Gains And Gross Realized Losses On Available-For-Sale Securities) (Details) (USD $)
In Thousands
3 Months Ended9 Months Ended
Sep. 30, 2011
Sep. 30, 2010
Sep. 30, 2011
Sep. 30, 2010
Investment Securities [Abstract]    
Gross gains - Available-for-Sale$ 2,070$ 394$ 8,562$ 11,409
Gross losses - Available-for-Sale(417)(1)(3,978)(124)
Net impairment losses recognized in earnings(215)(322)(3,060)(3,059)
Realized gain on available-for-sale securities, net$ 1,438$ 71$ 1,524$ 8,226