Annual report pursuant to Section 13 and 15(d)

Available-for-Sale and Other Securities (Realized Gains/Losses) (Details 1)

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Available-for-Sale and Other Securities (Realized Gains/Losses) (Details 1) (USD $)
In Thousands, unless otherwise specified
12 Months Ended
Dec. 31, 2011
Dec. 31, 2010
Dec. 31, 2009
Realized securities gains and losses      
Gross gains on sales of securities $ 18,641 $ 28,992 $ 59,762
Gross (losses) on sales of securities (14,959) (15,544) (10,947)
Net gain on sales of investment securities 3,682 13,448 48,815
Other-than-temporary impairment recorded (7,363) (13,722) (59,064)
Total securities gain (loss) $ (3,681) $ (274) $ (10,249)