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Mortgage Servicing Rights (Tables)
3 Months Ended
Mar. 31, 2013
Transfers and Servicing [Abstract]  
Schedule Of Changes In Mortgage Servicing Rights
The following table presents the changes in the Company’s mortgage servicing rights (“MSR”) for the three months ended March 31, 2013 and 2012

(in thousands) 
 
Three months ended
 
March 31,
 
2013
 
2012
Balance, beginning of period
$
27,428

 
$
18,184

Additions for new mortgage servicing rights capitalized
6,403

 
2,948

Changes in fair value:
 
 
 
 Due to changes in model inputs or assumptions(1)
(1,525
)
 
(94
)
 Other(2)
(209
)
 
(828
)
Balance, end of period
$
32,097

 
$
20,210

 
(1)
Principally reflects changes in discount rates and prepayment speed assumptions, which are primarily affected by changes in interest rates. 
(2)
Represents changes due to collection/realization of expected cash flows over time. 
Schedule Of Other Information Servicing Loan Portfolio
Information related to our serviced loan portfolio as of March 31, 2013 and December 31, 2012 was as follows: 
 
(dollars in thousands)
 
March 31, 2013
 
December 31, 2012
Balance of loans serviced for others
$
3,624,819

 
$
3,162,080

MSR as a percentage of serviced loans
0.89
%
 
0.87
%
Key Assumptions Used In Measuring The Fair Value of MSR
Key assumptions used in measuring the fair value of MSR as of March 31, 2013 and December 31, 2012 are as follows: 
 
 
March 31, 2013
 
December 31, 2012
Constant prepayment rate
20.48
%
 
21.39
%
Discount rate
8.67
%
 
8.65
%
Weighted average life (years)
4.5

 
4.7

Sensitivity Analysis of Current Fair Value to Changes in Discount and Prepayment Speed Assumptions
A sensitivity analysis of the current fair value to changes in discount and prepayment speed assumptions as of March 31, 2013 and December 31, 2012 is as follows:
 
March 31, 2013
 
December 31, 2012
Constant prepayment rate
 
 
 
Effect on fair value of a 10% adverse change
$
(1,733
)
 
$
(1,445
)
Effect on fair value of a 20% adverse change
$
(3,295
)
 
$
(2,754
)
 
 
 
 
Discount rate
 
 
 
Effect on fair value of a 100 basis point adverse change
$
(1,008
)
 
$
(889
)
Effect on fair value of a 200 basis point adverse change
$
(1,957
)
 
$
(1,720
)