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Mortgage Servicing Rights
12 Months Ended
Dec. 31, 2015
Disclosures Pertaining to Servicing Assets and Servicing Liabilities [Abstract]  
Mortgage Servicing Rights
Mortgage Servicing Rights
Following is a summary of the changes in the carrying value of MSRs, accounted for at fair value, for the years ending December 31, 2015, 2014 and 2013:
 
 
December 31,
 
December 31,
 
December 31,
(Dollars in thousands)
 
2015
 
2014
 
2013
Balance at beginning of year
 
$
8,435

 
$
8,946

 
$
6,750

Additions from loans sold with servicing retained
 
1,759

 
213

 
523

Additions from acquisitions
 

 
704

 

Estimate of changes in fair value due to:
 
 
 
 
 
 
Payoffs and paydowns
 
(1,315
)
 
(976
)
 
(941
)
Changes in valuation inputs or assumptions
 
213

 
(452
)
 
2,614

Fair value at end of year
 
$
9,092

 
$
8,435

 
$
8,946

Unpaid principal balance of mortgage loans serviced for others
 
$
939,819

 
$
877,899

 
$
961,619


The Company recognizes MSR assets upon the sale of residential real estate loans when it retains the obligation to service the loans and the servicing fee is more than adequate compensation. Additionally, in 2014, the Company recognized MSRs related to certain agricultural and farmland-related loans purchased from an unaffiliated bank. The initial recognition of MSR assets from loans sold with servicing retained and subsequent changes in fair value of all MSRs are recognized in mortgage banking revenue. MSRs are subject to changes in value from actual and expected prepayment of the underlying loans. The Company does not specifically hedge the value of its MSRs.
The Company uses a third party to assist in the valuation of a portion of MSRs. Fair values are determined by using a discounted cash flow model that incorporates the objective characteristics of the portfolio as well as subjective valuation parameters that purchasers of servicing would apply to such portfolios sold into the secondary market. The subjective factors include loan prepayment speeds, interest rates, servicing costs and other economic factors.