Annual report pursuant to Section 13 and 15(d)

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

v2.4.0.6
Available-for-Sale and Other Securities (Credit Ratings) (Details 2) (USD $)
In Thousands, unless otherwise specified
Dec. 31, 2011
Dec. 31, 2010
Schedule of Credit Rating by Investment Security Type [Line Items]    
Amortized Cost $ 342,867 $ 435,835
Fair Value 194,062 284,608
AAA [Member]
    
Schedule of Credit Rating by Investment Security Type [Line Items]    
Fair Value 1,045 41,238
AA +/- [Member]
    
Schedule of Credit Rating by Investment Security Type [Line Items]    
Fair Value 23,353 33,880
A +/- [Member]
    
Schedule of Credit Rating by Investment Security Type [Line Items]    
Fair Value 52,935 29,691
BBB +/- [Member]
    
Schedule of Credit Rating by Investment Security Type [Line Items]    
Fair Value 6,858 15,145
Less Than BBB- [Member]
    
Schedule of Credit Rating by Investment Security Type [Line Items]    
Fair Value 109,871 164,654
Alt-A Mortgage-backed [Member]
    
Schedule of Credit Rating by Investment Security Type [Line Items]    
Amortized Cost 57,684  
Fair Value 47,889  
Alt-A Mortgage-backed [Member] | AAA [Member]
    
Schedule of Credit Rating by Investment Security Type [Line Items]    
Fair Value     
Alt-A Mortgage-backed [Member] | AA +/- [Member]
    
Schedule of Credit Rating by Investment Security Type [Line Items]    
Fair Value 23,353  
Alt-A Mortgage-backed [Member] | A +/- [Member]
    
Schedule of Credit Rating by Investment Security Type [Line Items]    
Fair Value 8,035  
Alt-A Mortgage-backed [Member] | BBB +/- [Member]
    
Schedule of Credit Rating by Investment Security Type [Line Items]    
Fair Value     
Alt-A Mortgage-backed [Member] | Less Than BBB- [Member]
    
Schedule of Credit Rating by Investment Security Type [Line Items]    
Fair Value 16,501  
Pooled Trust Preferred [Member]
    
Schedule of Credit Rating by Investment Security Type [Line Items]    
Amortized Cost 200,585  
Fair Value 73,809  
Pooled Trust Preferred [Member] | AAA [Member]
    
Schedule of Credit Rating by Investment Security Type [Line Items]    
Fair Value     
Pooled Trust Preferred [Member] | AA +/- [Member]
    
Schedule of Credit Rating by Investment Security Type [Line Items]    
Fair Value     
Pooled Trust Preferred [Member] | A +/- [Member]
    
Schedule of Credit Rating by Investment Security Type [Line Items]    
Fair Value 22,650  
Pooled Trust Preferred [Member] | BBB +/- [Member]
    
Schedule of Credit Rating by Investment Security Type [Line Items]    
Fair Value     
Pooled Trust Preferred [Member] | Less Than BBB- [Member]
    
Schedule of Credit Rating by Investment Security Type [Line Items]    
Fair Value 51,159  
Private label CMO [Member]
    
Schedule of Credit Rating by Investment Security Type [Line Items]    
Amortized Cost 84,598  
Fair Value 72,364  
Private label CMO [Member] | AAA [Member]
    
Schedule of Credit Rating by Investment Security Type [Line Items]    
Fair Value 1,045  
Private label CMO [Member] | AA +/- [Member]
    
Schedule of Credit Rating by Investment Security Type [Line Items]    
Fair Value     
Private label CMO [Member] | A +/- [Member]
    
Schedule of Credit Rating by Investment Security Type [Line Items]    
Fair Value 22,250  
Private label CMO [Member] | BBB +/- [Member]
    
Schedule of Credit Rating by Investment Security Type [Line Items]    
Fair Value 6,858  
Private label CMO [Member] | Less Than BBB- [Member]
    
Schedule of Credit Rating by Investment Security Type [Line Items]    
Fair Value $ 42,211