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Disclosures about fair value of assets and liabilities (Tables)
3 Months Ended
Mar. 31, 2013
Disclosures about Fair Value of Assets and Liabilities and Fair Value of Financial Instrument [Abstract]  
Fair value measurements of assets and liabilities recognized on a recurring basis
                                 
    Fair Value     Quoted Prices in
Active Markets
for Identical
Assets
(Level 1)
    Significant
Other
Observable
Inputs
(Level 2)
    Significant
Unobservable
Inputs
(Level 3)
 

March 31, 2013

                               

Available-for-sale securities

                               

U.S. Treasury and federal agencies

  $ 46,217     $ —       $ 46,217     $ —    

State and municipal

    170,489       —         170,489       —    

Federal agency collateralized mortgage obligations

    111,235       —         111,235       —    

Federal agency mortgage-backed pools

    150,230       —         150,230       —    

Private labeled mortgage-backed pools

    1,756       —         1,756       —    

Corporate notes

    49       —         49       —    
   

 

 

   

 

 

   

 

 

   

 

 

 

Total available-for-sale securities

    479,976       —         479,976       —    
         

Hedged loans

    75,601       —         75,601       —    

Forward sale commitments

    846       —         846       —    

Interest rate swap agreements

    (6,868     —         (6,868     —    

Commitments to originate loans

    —         —         —         —    
         

December 31, 2012

                               

Available-for-sale securities

                               

U.S. Treasury and federal agencies

  $ 51,779     $ —       $ 51,779     $ —    

State and municipal

    172,905       —         172,905       —    

Federal agency collateralized mortgage obligations

    96,831       —         96,831       —    

Federal agency mortgage-backed pools

    159,204       —         159,204       —    

Private labeled mortgage-backed pools

    2,031       —         2,031       —    

Corporate notes

    51       —         51       —    
   

 

 

   

 

 

   

 

 

   

 

 

 

Total available-for-sale securities

    482,801       —         482,801       —    
         

Hedged loans

    81,018       —         81,018       —    

Forward sale commitments

    858       —         858       —    

Interest rate swap agreements

    (7,707     —         (7,707     —    

Commitments to originate loans

    —         —         —         —    
Schedule of fair value transfer among levels
                             
December 31, 2012   Quoted Prices
in Active
Markets for
Identical
Assets
(Level 1)
    Significant
Other
Observable
Inputs
(Level 2)
    Significant
Unobservable
Inputs
(Level 3)
    Reason
for
Transfer

Transfers to level:

                           
         

Hedged loans

  $  —       $ 59,911     $ —       (a)

Forward sale commitments

    —         510       —       (b)

Interest rate swap agreements

    —         (6,464     —       (a)

Commitments to originate loans

    —         (71     —       (b)
   

 

 

   

 

 

   

 

 

     

Total transfers to level

  $  —       $ 53,886     $ —        
   

 

 

   

 

 

   

 

 

     

 

 

     
(a) -   Valuation determined by widely accepted techniques including discounted cash flow analysis on expected cash flows of each derivative and observable market rate inputs such as yield curves and contractual terms on each instrument.
   
(b) -   Valuation determined by quoted prices for similar loans in the secondary market with an expected fallout rate (interest rate locked pipeline loans not expected to close). Fallout rate is not considered a significant input to the fair value in its entirety.
Reconciliation of the beginning and ending balances of recurring fair value measurements recognized in the accompanying condensed consolidated balance sheet using significant unobservable (Level 3) inputs
                                 
    Hedged Loans     Forward Sale
Commitments
    Interest Rate
Swaps
    Commitments to
Originate Loans
 

Beginning balance December 31, 2011

  $ 54,362     $ 662     $ (7,101   $ —    

Total realized and unrealized gains and losses

                               

Included in net income

    (74     (152     74       (71

Included in other comprehensive income, gross

    —         —         563       —    

Purchases, issuances, and settlements

    6,114       —         —         —    

Principal payments

    (491     —         —         —    

Transfers out to Level 2

    (59,911     (510     6,464       71  
   

 

 

   

 

 

   

 

 

   

 

 

 

Ending balance December 31, 2012

  $ —       $ —       $ —       $ —    
   

 

 

   

 

 

   

 

 

   

 

 

 
Realized gains and losses included in net income for the periods in the condensed consolidated statements of income
                 
    Three Months Ended March 31  
    2013     2012  
Non Interest Income   (Unaudited)     (Unaudited)  

Total gains and losses from:

               

Hedged loans

  $ (401   $  (74

Fair value interest rate swap agreements

    401       74  

Derivative loan commitments

    (12     (223
   

 

 

   

 

 

 
    $ (12   $ (223
   

 

 

   

 

 

 
Other assets measured at fair value on a nonrecurring basis
                                 
          Quoted Prices in     Significant Other     Significant  
          Active Markets for     Observable     Unobservable  
          Identical Assets     Inputs     Inputs  
    Fair Value     (Level 1)     (Level 2)     (Level 3)  

March 31, 2013

                               

Impaired loans

  $ 8,109     $ —       $ —       $ 8,109  

Mortgage servicing rights

    5,461       —         —         5,461  
         

December 31, 2012

                               

Impaired loans

  $ 8,652     $ —       $ —       $ 8,652  

Mortgage servicing rights

    5,145       —         —         5,145  
Qualitative information about unobservable inputs used in recurring and nonrecurring Level 3 fair value measurements, other than goodwill
                     
    Fair Value at
March 31, 2013
   

Valuation

Technique

 

Unobservable Inputs

  Range (Weighted
Average)

Impaired loans

  $ 8,109     Collateral based measurement  

Discount to reflect current market

conditions and ultimate

collectability

  10% - 15% (12%)

Mortgage servicing rights

  $ 5,461     Discounted cashflows  

Discount rate, Constant

prepayment rate, Probably of

default

  10% -15% (12%),

4% -7% (4.6%), 1% -

10% (4.5%)

         
    Fair Value at
December 31, 2012
   

Valuation

Technique

 

Unobservable Inputs

  Range (Weighted
Average)

Impaired loans

  $ 8,652     Collateral based measurement  

Discount to reflect current market

conditions and ultimate

collectability

  10% - 15% (12%)

Mortgage servicing rights

  $ 5,145     Discounted cashflows  

Discount rate, Constant

prepayment rate, Probably of

default

  10% - 15% (12%),

4% -7% (4.6%), 1% -

10% (4.5%)