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Capitalized servicing assets
12 Months Ended
Dec. 31, 2015
Transfers and Servicing [Abstract]  
Capitalized servicing assets

7.    Capitalized servicing assets

Changes in capitalized servicing assets were as follows:

 

     Residential Mortgage Loans     Commercial Mortgage Loans  

For Year Ended December 31,

   2015     2014     2013     2015     2014     2013  
     (In thousands)  

Beginning balance

   $ 109,871      $ 126,377      $ 104,855      $ 72,939      $ 72,499      $ 59,978   

Originations

     35,556        28,285        52,375        29,914        15,922        26,754   

Purchases

     243        289        272               730          

Recognized in loan securitization transactions

                   13,696                        

Amortization

     (27,367     (45,080     (44,821     (19,161     (16,212     (14,233
  

 

 

   

 

 

   

 

 

   

 

 

   

 

 

   

 

 

 
     118,303        109,871        126,377        83,692        72,939        72,499   

Valuation allowance

                   (300                     
  

 

 

   

 

 

   

 

 

   

 

 

   

 

 

   

 

 

 

Ending balance, net

   $ 118,303      $ 109,871      $ 126,077      $ 83,692      $ 72,939      $ 72,499   
  

 

 

   

 

 

   

 

 

   

 

 

   

 

 

   

 

 

 
     Other     Total  

For Year Ended December 31,

   2015     2014     2013     2015     2014     2013  
     (In thousands)  

Beginning balance

   $ 4,107      $ 11,225      $ 8,143      $ 186,917      $ 210,101      $ 172,976   

Originations

                          65,470        44,207        79,129   

Purchases

                          243        1,019        272   

Recognized in loan securitization transactions

                   9,382                      23,078   

Amortization

     (3,378     (7,118     (6,300     (49,906     (68,410     (65,354
  

 

 

   

 

 

   

 

 

   

 

 

   

 

 

   

 

 

 
     729        4,107        11,225        202,724        186,917        210,101   

Valuation allowance

                                        (300
  

 

 

   

 

 

   

 

 

   

 

 

   

 

 

   

 

 

 

Ending balance, net

   $ 729      $ 4,107      $ 11,225      $ 202,724      $ 186,917      $ 209,801   
  

 

 

   

 

 

   

 

 

   

 

 

   

 

 

   

 

 

 

Residential mortgage loans serviced for others were $61.7 billion at December 31, 2015, $67.2 billion at December 31, 2014 and $72.4 billion at December 31, 2013. Reflected in residential mortgage loans serviced for others were loans sub-serviced for others of $37.8 billion, $42.1 billion and $46.6 billion at December 31, 2015, 2014, and 2013, respectively. Commercial mortgage loans serviced for others were $11.0 billion at December 31, 2015, $11.3 billion at December 31, 2014 and $11.4 billion at December 31, 2013.

The estimated fair value of capitalized residential mortgage loan servicing assets was approximately $249 million at December 31, 2015 and $228 million at December 31, 2014. The fair value of capitalized residential mortgage loan servicing assets was estimated using weighted-average discount rates of 12.4% and 11.9% at December 31, 2015 and 2014, respectively, and contemporaneous prepayment assumptions that vary by loan type. At December 31, 2015 and 2014, the discount rate represented a weighted-average option-adjusted spread (“OAS”) of 1119 basis points (hundredths of one percent) and 1065 basis points, respectively, over market implied forward London Interbank Offered Rates (“LIBOR”). The estimated fair value of capitalized residential mortgage loan servicing rights may vary significantly in subsequent periods due to changing interest rates and the effect thereof on prepayment speeds. The estimated fair value of capitalized commercial mortgage loan servicing assets was approximately $99 million and $87 million at December 31, 2015 and 2014, respectively. An 18% discount rate was used to estimate the fair value of capitalized commercial mortgage loan servicing rights at December 31, 2015 and 2014 with no prepayment assumptions because, in general, the servicing agreements allow the Company to share in customer loan prepayment fees and thereby recover the remaining carrying value of the capitalized servicing rights associated with such loan. The Company’s ability to realize the carrying value of capitalized commercial mortgage servicing rights is more dependent on the borrowers’ abilities to repay the underlying loans than on prepayments or changes in interest rates.

The key economic assumptions used to determine the fair value of significant portfolios of capitalized servicing rights at December 31, 2015 and the sensitivity of such value to changes in those assumptions are summarized in the table that follows. Those calculated sensitivities are hypothetical and actual changes in the fair value of capitalized servicing rights may differ significantly from the amounts presented herein. The effect of a variation in a particular assumption on the fair value of the servicing rights is calculated without changing any other assumption. In reality, changes in one factor may result in changes in another which may magnify or counteract the sensitivities. The changes in assumptions are presumed to be instantaneous.

 

     Residential     Commercial  

Weighted-average prepayment speeds

     11.92  

Impact on fair value of 10% adverse change

   $ (9,208,000  

Impact on fair value of 20% adverse change

     (17,696,000  

Weighted-average OAS

     11.19  

Impact on fair value of 10% adverse change

   $ (7,758,000  

Impact on fair value of 20% adverse change

     (15,011,000  

Weighted-average discount rate

       18.00

Impact on fair value of 10% adverse change

     $ (4,302,000

Impact on fair value of 20% adverse change

       (8,300,000

As described in note 19, during 2013 the Company securitized approximately $1.3 billion of one-to-four family residential mortgage loans formerly held in the Company’s loan portfolio in guaranteed mortgage securitizations with Ginnie Mae and securitized and sold approximately $1.4 billion of automobile loans. In conjunction with these transactions, the Company retained the servicing rights to the loans.