XML 45 R33.htm IDEA: XBRL DOCUMENT v3.7.0.1
Mortgage Servicing Rights (Tables)
 6 Months Ended
Jun. 30, 2017
Transfers and Servicing [Abstract]  
Changes in the Company's MSRs
Changes in the Company’s MSRs were as follows: 
Balance at January 1, 2017
$
26,302

Capitalization
7,194

Amortization
(1,670
)
Balance at June 30, 2017
$
31,826
Data and key economic assumptions related to the Company's MSRs
Data and key economic assumptions related to the Company’s MSRs as of June 30, 2017 and December 31, 2016 are as follows:
 
 
June 30, 2017
 
December 31, 2016
Unpaid principal balance
$
3,315,293

 
$
2,763,344

 
 
 
 
Weighted-average prepayment speed (CPR)
8.80
%
 
7.34
%
Estimated impact of a 10% increase
$
(1,348
)
 
$
(1,034
)
Estimated impact of a 20% increase
(2,615
)
 
(2,010
)
 
 
 
 
Discount rate
9.66
%
 
9.64
%
Estimated impact of a 10% increase
$
(1,540
)
 
$
(1,368
)
Estimated impact of a 20% increase
(2,964
)
 
(2,629
)
 
 
 
 
Weighted-average coupon interest rate
3.85
%
 
3.83
%
Weighted-average servicing fee (basis points)
26.06

 
25.87

Weighted-average remaining maturity (in years)
14.02

 
11.11