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Intangible Assets (Details 1) (Mortgage Service Rights)
9 Months Ended
Sep. 30, 2014
Sep. 30, 2013
Mortgage Service Rights
   
Assumptions used in estimating the fair value of mortgage service rights    
Weighted average constant prepayment rate (as a percent) 10.05% 10.94%
Weighted average note rate (as a percent) 4.00% 4.02%
Weighted average discount rate (as a percent) 9.18% 8.56%
Weighted average expected life (in years) 5 years 10 months 24 days 5 years 8 months 12 days