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Intangible Assets (Tables)
9 Months Ended
Sep. 30, 2015
Intangible Assets  
Schedule of changes in mortgage servicing rights (MSRs)
    Three Months Ended September 30,     Nine Months Ended September 30,  
(in thousands)   2015     2014     2015     2014  
Balance at beginning of period   $ 2,727     $ 2,911     $ 2,762     $ 3,036  
Originated mortgage servicing rights     76       95       303       217  
Changes in fair value:                                
Due to change in model inputs and assumptions (1)     136       27       223       97  
Other changes in fair value (2)     (165 )     (166 )     (514 )     (483 )
Balance at end of period   $ 2,774     $ 2,867     $ 2,774     $ 2,867  

 

(1) The change in fair value resulting from changes in valuation inputs or assumptions used in the valuation model reflects the change in discount rates and prepayment speed assumptions primarily due to changes in interest rates.

(2) Other changes in fair value reflect changes due to customer payments and passage of time.

Schedule of key data and assumptions used in estimating the fair value of the Company's MSRs
    Nine Months Ended September 30,  
    2015     2014  
Weighted average constant prepayment rate     10.06 %     10.05 %
Weighted average note rate     3.92 %     4.00 %
Weighted average discount rate     9.35 %     9.18 %
Weighted average expected life (in years)     5.80       5.90