XML 52 R36.htm IDEA: XBRL DOCUMENT v3.6.0.2
Investment Securities (Tables)
12 Months Ended
Dec. 31, 2016
Investments, Debt and Equity Securities [Abstract]  
Summary of Amortized Cost and Estimated Fair Value of Investment Securities

The majority of securities held are traded in markets where similar assets are actively traded. Estimated fair values were obtained from an independent pricing service based upon market quotes.

 

    December 31, 2016  
    Amortized
Cost
    Gross
Unrealized
Holding

Gain
    Gross
Unrealized
Holding

Loss
    Fair Value     Total
Percent
 
    (Dollars in thousands)  

Investment securities available-for-sale:

         

Government agency/GSE

    $ 2,750          $ 2          $ -          $ 2,752          0.12%     

Residential mortgage-backed securities

    1,822,168          18,812          (6,232)         1,834,748          80.81%     

CMO/REMIC - residential

    345,313          3,361          (1,485)         347,189          15.29%     

Municipal bonds

    80,137          889          (955)         80,071          3.53%     

Other securities

    5,506          200          -          5,706          0.25%     
 

 

 

   

 

 

   

 

 

   

 

 

   

 

 

 

Total available-for-sale securities

    $   2,255,874          $   23,264          $ (8,672)         $   2,270,466          100.00%     
 

 

 

   

 

 

   

 

 

   

 

 

   

 

 

 

Investment securities held-to-maturity (1):

         

Government agency/GSE

    $ 182,648          $ 362          (1,972)         $ 181,038          20.03%     

Residential mortgage-backed securities

    193,699          -          (1,892)         191,807          21.25%     

CMO

    244,419          -          (6,808)         237,611          26.81%     

Municipal bonds

    290,910          776          (4,768)         286,918          31.91%     
 

 

 

   

 

 

   

 

 

   

 

 

   

 

 

 

Total held-to-maturity securities

    $ 911,676          $        1,138          $     (15,440)         $ 897,374                100.00%     
 

 

 

   

 

 

   

 

 

   

 

 

   

 

 

 

 

    December 31, 2015  
    Amortized
Cost
    Gross
Unrealized
Holding

Gain
    Gross
Unrealized
Holding

Loss
    Fair Value     Total
Percent
 
    (Dollars in thousands)  

Investment securities available-for-sale:

         

Government agency/GSE

    $ 5,752          $ -          $ (7)         $ 5,745          0.24%     

Residential mortgage-backed securities

    1,788,857          26,001          (1,761)         1,813,097          76.55%     

CMO/REMIC - residential

    380,166          4,689          (1,074)         383,781          16.20%     

Municipal bonds

    157,940          3,036          (3)         160,973          6.80%     

Other securities

    5,000          50          -          5,050          0.21%     
 

 

 

   

 

 

   

 

 

   

 

 

   

 

 

 

Total available-for-sale securities

    $   2,337,715          $   33,776          $   (2,845)         $   2,368,646          100.00%     
 

 

 

   

 

 

   

 

 

   

 

 

   

 

 

 

Investment securities held-to-maturity (1):

         

Government agency/GSE

    $ 293,338          $ 1,176          $ (734)         $ 293,780          34.47%     

Residential mortgage-backed securities

    232,053          -          (1,293)         230,760          27.27%     

CMO

    1,284          569          -          1,853          0.15%     

Municipal bonds

    324,314          3,051          (719)         326,646          38.11%     
 

 

 

   

 

 

   

 

 

   

 

 

   

 

 

 

Total held-to-maturity securities

    $ 850,989          $         4,796          $       (2,746)         $ 853,039                100.00%     
 

 

 

   

 

 

   

 

 

   

 

 

   

 

 

 

(1) Securities held-to-maturity are presented in the consolidated balance sheets at amortized cost.

Summary of Interest Income Earned on Investment Securities

The following table provides information about the amount of interest income earned on investment securities which is fully taxable and which is exempt from regular federal income tax.

 

        For the Year Ended December 31,      
    2016     2015     2014  
    (Dollars in thousands)  

Investment securities available-for-sale:

     

Taxable

    $  43,538         $ 48,854         $   47,301    

Tax-advantaged

    4,164         14,336         20,913    
 

 

 

   

 

 

   

 

 

 

Total interest income from
available-for-sale securities

    47,702         63,190         68,214    
 

 

 

   

 

 

   

 

 

 

Investment securities held-to-maturity:

     

Taxable

    10,183         4,451         164    

Tax-advantaged

    10,044         4,567         -    
 

 

 

   

 

 

   

 

 

 

Total interest income from
held-to-maturity securities

    20,227         9,018         164    
 

 

 

   

 

 

   

 

 

 

Total interest income from investment securities

    $   67,929         $   72,208         $   68,378    
 

 

 

   

 

 

   

 

 

Summary of Continuous Unrealized Loss Position of Securities

The tables below show the Company’s investment securities’ gross unrealized losses and fair value by investment category and length of time that individual securities have been in a continuous unrealized loss position at December 31, 2016 and 2015. Management has reviewed individual securities to determine whether a decline in fair value below the amortized cost basis is other-than-temporary.  

    December 31, 2016  
    Less Than 12 Months     12 Months or Longer     Total  
  Fair Value     Gross
Unrealized
Holding
Losses
    Fair Value     Gross
Unrealized
Holding
Losses
    Fair Value     Gross
Unrealized
Holding
Losses
 
    (Dollars in thousands)  

Investment securities available-for-sale:

           

Government agency/GSE

    $ -          $ -         $ -          $ -          $ -          $ -     

Residential mortgage-backed securities

    583,143          (6,232)         -          -          583,143          (6,232)    

CMO/REMIC - residential

    128,595          (1,485)         -          -          128,595          (1,485)    

Municipal bonds

    23,255          (954)         5,981          (1)         29,236          (955)    

Other securities

    -          -          -          -          -          -     
 

 

 

   

 

 

   

 

 

   

 

 

   

 

 

   

 

 

 

Total available-for-sale securities

    $   734,993          $ (8,671)         $ 5,981          $ (1)         $   740,974          $ (8,672)    
 

 

 

   

 

 

   

 

 

   

 

 

   

 

 

   

 

 

 

Investment securities held-to-maturity:

           

Government agency/GSE

    $ 76,854          $ (1,972)         $ -          $ -          $ 76,854          $ (1,972)    

Residential mortgage-backed securities

    191,807          (1,892)         -          -          191,807          (1,892)    

CMO

    237,611          (6,808)         -          -          237,611          (6,808)    

Municipal bonds

    145,804          (3,711)         36,971          (1,057)         182,775          (4,768)    
 

 

 

   

 

 

   

 

 

   

 

 

   

 

 

   

 

 

 

Total held-to-maturity securities

    $ 652,076          $   (14,383)         $   36,971           $   (1,057)         $ 689,047          $   (15,440)    
 

 

 

   

 

 

   

 

 

   

 

 

   

 

 

   

 

 

 

 

    December 31, 2015  
    Less Than 12 Months     12 Months or Longer     Total  
  Fair Value     Gross
Unrealized
Holding
Losses
    Fair Value     Gross
Unrealized
Holding
Losses
    Fair Value     Gross
Unrealized
Holding
Losses
 
    (Dollars in thousands)  

Investment securities available-for-sale:

           

Government agency/GSE

    $ 5,745          $ (7)         $ -         $ -          $ 5,745          $ (7)    

Residential mortgage-backed securities

    437,699          (1,761)         -         -          437,699          (1,761)    

CMO/REMIC - residential

    171,923          (1,074)         -         -          171,923          (1,074)    

Municipal bonds

    398          (2)         5,961         (1)         6,359          (3)    

Other securities

    -          -          -         -          -          -     
 

 

 

   

 

 

   

 

 

   

 

 

   

 

 

   

 

 

 

Total available-for-sale securities

    $ 615,765          $ (2,844)         $   5,961         $       (1)         $ 621,726        $ (2,845)    
 

 

 

   

 

 

   

 

 

   

 

 

   

 

 

   

 

 

 

Investment securities held-to-maturity:

           

Government agency/GSE

    $ 84,495          $ (734)         $ -         $ -          $ 84,495          $ (734)    

Residential mortgage-backed securities

    230,760          (1,293)         -         -          230,760          (1,293)    

CMO

    -          -          -         -          -          -     

Municipal bonds

    110,119          (719)         -         -          110,119          (719)    
 

 

 

   

 

 

   

 

 

   

 

 

   

 

 

   

 

 

 

Total held-to-maturity securities

    $   425,374          $   (2,746)         $ -           $ -          $   425,374          $ (2,746)    
 

 

 

   

 

 

   

 

 

   

 

 

   

 

 

   

 

 

 
Summary of Amortized Cost and Fair Value of Debt Securities by Contractual Maturity

Mortgage-backed securities and CMO/REMIC are included in maturity categories based upon estimated prepayment speeds.

 

    December 31, 2016  
    Available-for-sale     Held-to-maturity  
    Amortized
Cost
    Fair Value     Amortized
Cost
    Fair Value  
    (Dollars in thousands)  

Due in one year or less

    $ 16,863         $ 17,004         $ -         $ -    

Due after one year through five years

      1,974,483         1,986,171         355,263         349,455    

Due after five years through ten years

    87,968         88,907         200,570         196,869    

Due after ten years

    176,560         178,384         355,843         351,050    
 

 

 

   

 

 

   

 

 

   

 

 

 

Total investment securities

    $   2,255,874         $   2,270,466         $     911,676         $     897,374