Annual report pursuant to Section 13 and 15(d)

Fair Values of Assets and Liabilities (Significant unobservable Level 3 inputs) (Details 6)

v2.4.0.6
Fair Values of Assets and Liabilities (Significant unobservable Level 3 inputs) (Details 6) (Level 3 [Member], USD $)
In Thousands, unless otherwise specified
12 Months Ended
Dec. 31, 2012
MSRs [Member]
Maximum [Member]
Cost Approach Valuation Technique [Member]
Dec. 31, 2012
MSRs [Member]
Minimum [Member]
Cost Approach Valuation Technique [Member]
Dec. 31, 2012
MSRs [Member]
Weighted Average [Member]
Cost Approach Valuation Technique [Member]
Dec. 31, 2012
Derivative Instruments [Member]
Maximum [Member]
Market Approach Valuation Technique [Member]
Dec. 31, 2012
Derivative Instruments [Member]
Minimum [Member]
Market Approach Valuation Technique [Member]
Dec. 31, 2012
Derivative Instruments [Member]
Weighted Average [Member]
Market Approach Valuation Technique [Member]
Dec. 31, 2012
Municipal securities [Member]
Maximum [Member]
Cost Approach Valuation Technique [Member]
Dec. 31, 2012
Municipal securities [Member]
Minimum [Member]
Cost Approach Valuation Technique [Member]
Dec. 31, 2012
Municipal securities [Member]
Weighted Average [Member]
Cost Approach Valuation Technique [Member]
Dec. 31, 2012
Private label CMO [Member]
Maximum [Member]
Cost Approach Valuation Technique [Member]
Dec. 31, 2012
Private label CMO [Member]
Minimum [Member]
Cost Approach Valuation Technique [Member]
Dec. 31, 2012
Private label CMO [Member]
Weighted Average [Member]
Cost Approach Valuation Technique [Member]
Dec. 31, 2012
Asset-backed Securities [Member]
Maximum [Member]
Cost Approach Valuation Technique [Member]
Dec. 31, 2012
Asset-backed Securities [Member]
Minimum [Member]
Cost Approach Valuation Technique [Member]
Dec. 31, 2012
Asset-backed Securities [Member]
Weighted Average [Member]
Cost Approach Valuation Technique [Member]
Dec. 31, 2012
Automobile Loan [Member]
Maximum [Member]
Cost Approach Valuation Technique [Member]
Dec. 31, 2012
Automobile Loan [Member]
Minimum [Member]
Cost Approach Valuation Technique [Member]
Dec. 31, 2012
Automobile Loan [Member]
Weighted Average [Member]
Cost Approach Valuation Technique [Member]
Quantitative information about level 3 fair value measurements                                    
Constant prepayment rate (CPR) 31.00% 10.00% 20.00%             26.70% 5.10% 14.80% 9.80% 5.10% 5.30% 15.60% 15.60% 15.60%
Probability of default                   4.00% 0.10% 1.00%            
Loss severity                   64.00% 0.00% 27.80% 72.00% 20.00% 64.90%      
Discount rate             12.00% 1.70% 3.10% 8.50% 3.00% 6.20% 16.60% 4.50% 9.00% 5.00% 0.80% 4.00%
Spread over forward interest rate swap rates 4,552.000 (568.000) 1,288.000                              
Net market price       10.80% (2.30%) 3.00%                        
Estimated pull thru %       89.00% 38.00% 75.00%                        
Cumulative prepayment rate                         100.00% 0.00% 6.90%      
Constant defualt rate                         4.00% 0.30% 2.80%      
Cumulative default                         100.00% 1.10% 20.10%      
Loss given default                         100.00% 85.00% 92.40%      
Cure given deferral                         90.00% 0.00% 34.70%