Quarterly report pursuant to Section 13 or 15(d)

Available-for-Sale and Other Securities (Credit Ratings) (Details 2)

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Available-for-Sale and Other Securities (Credit Ratings) (Details 2) (Pooled Trust Preferred [Member], USD $)
In Thousands, unless otherwise specified
Mar. 31, 2013
Dec. 31, 2012
Pooled Trust Preferred [Member]
   
Schedule of Credit Rating by Investment Security Type [Line Items]    
Amortized Cost $ 190,350 $ 195,760
Fair Value $ 90,958 $ 84,296