Quarterly report pursuant to Section 13 or 15(d)

Fair Value, Quantitative Information about Level 3 Fair Value Measurements (Details)

v2.4.0.8
Fair Value, Quantitative Information about Level 3 Fair Value Measurements (Details) (USD $)
In Thousands, unless otherwise specified
 9 Months Ended 12 Months Ended
Sep. 30, 2014
Dec. 31, 2013
Jun. 30, 2014
Sep. 30, 2013
Jun. 30, 2013
Dec. 31, 2012
Fair Value Inputs, Assets, Quantitative Information [Line Items]            
Mortgage servicing rights $ 498,466 $ 514,402 $ 500,490 $ 15,703 $ 1,452 $ 0
Fair Value Measurements, Valuation Processes, Description Discounted cash flow          
Fair Value Inputs, Prepayment Rate 10.70% 9.50%        
Fair Value Inputs, Probability of Default 4.50% 4.00%        
Fair Value Inputs, Discount Rate 9.50% 9.00%        
Minimum [Member]
            
Fair Value Inputs, Assets, Quantitative Information [Line Items]            
Fair Value Inputs, Prepayment Rate 8.80%          
Fair Value Inputs, Probability of Default 1.90%          
Fair Value Inputs, Discount Rate 7.60%          
Maximum [Member]
            
Fair Value Inputs, Assets, Quantitative Information [Line Items]            
Fair Value Inputs, Prepayment Rate 12.50%          
Fair Value Inputs, Probability of Default 8.00%          
Fair Value Inputs, Discount Rate 11.10%