XML 22 R33.htm IDEA: XBRL DOCUMENT v2.4.1.9
Mortgage Servicing Rights and Mortgage Servicing Activity (Tables)
 3 Months Ended
Mar. 31, 2015
Transfers and Servicing [Abstract]  
Changes in the carrying amount of mortgage servicing rights
Changes in the carrying amount of MSRs and MSRs valuation allowance are as follows:
 
Three Months Ended March 31,
(In thousands)
2015
 
2014
Balance at beginning of period
$
22,011

 
$
22,760

Additions
470

 
564

Amortization
(991
)
 
(855
)
Balance at end of period
21,490

 
22,469

Valuation allowance at beginning of period
(955
)
 
(282
)
Additions
(176
)
 
(143
)
Valuation allowance at end of period
(1,131
)
 
(425
)
MSRs, net carrying balance
$
20,359

 
$
22,044

Fair value at end of period
$
20,526

 
$
22,631

 
 
 
 
Changes in Key economics assumptions
In reality, changes in one factor may result in changes in another (for example, changes in prepayment speed estimates could result in changes in the discount rates), which might magnify or counteract the sensitivities.

(Dollars in thousands)
Prepayment speed assumption (annual CPR)
12.63
%
    Decrease in fair value from 10% adverse change
$
778

    Decrease in fair value from 25% adverse change
$
1,510

Discount rate assumption
9.39
%
    Decrease in fair value from 100 basis point adverse change
$
632

    Decrease in fair value from 200 basis point adverse change
$
1,222

Expected weighted-average life (in months)
93