v2.4.0.8
INVESTMENT SECURITIES (Tables)
3 Months Ended
Mar. 31, 2014
INVESTMENT SECURITIES [Abstract]  
Amortized cost and estimated fair value of investment securities
The amortized cost and estimated fair value of investment securities as of March 31, 2014 and December 31, 2013 are as follows:
 
 March 31, 2014 December 31, 2013
  GrossGross   GrossGross 
 Amortized
Unrealized
UnrealizedFair  
Unrealized
Unrealized
Fair
(000's omitted)
Cost
Gains
Losses
Value
 
Cost
Gains
Losses
Value
Available-for-Sale Portfolio:
                 
U.S. Treasury and agency securities
$1,479,306
$7,582
$20,157
$1,466,731
 
$1,252,332
$1,119
$41,304
$1,212,147
Obligations of state and political subdivisions
684,713
19,984
5,571
699,126
 
665,441
15,919
12,378
668,982
Government agency mortgage-backed securities
248,785
9,086
3,021
254,850
 
250,431
8,660
4,113
254,978
Corporate debt securities
26,899
794
136
27,557
 
26,932
873
218
27,587
Government agency collateralized mortgage obligations
20,777
812
0
21,589
 
21,779
362
93
22,048
Marketable equity securities
250
183
0
433
 
250
171
0
421
     Total available-for-sale portfolio
$2,460,730
$38,441
$28,885
$2,470,286
 
$2,217,165
$27,104
$58,106
$2,186,163
                   
Other Securities:
                 
Federal Reserve Bank common stock
$16,050
   
$16,050
 
$16,050
   
$16,050
Federal Home Loan Bank common stock
15,436
   
15,436
 
12,053
   
12,053
Other equity securities
4,449
   
4,449
 
4,459
   
4,459
     Total other securities
$35,935
   
$35,935
 
$32,562
   
$32,562
 
Summary of investment securities that have been in a continuous unrealized loss position for less than or greater than twelve months
A summary of investment securities that have been in a continuous unrealized loss position for less than, or greater than, twelve months is as follows:

As of March 31, 2014
 
     
Less than 12 Months
 12 Months or Longer Total
       
Gross
     
Gross
     
Gross
     
Fair
Unrealized
   
Fair
Unrealized
   
Fair
Unrealized
(000's omitted)
 
#
Value
Losses
 
#
Value
Losses
 
#
Value
Losses
                         
Available-for-Sale Portfolio:
                       
 U.S. Treasury and agency obligations
 
34
$840,063
$20,157
 
0
$0
$0
 
34
$840,063
$20,157
 Obligations of state and political subdivisions
 
211
139,641
4,355
 
31
15,923
1,216
 
242
155,564
5,571
 Government agency mortgage-backed securities
 
38
65,142
2,250
 
8
9,981
771
 
46
75,123
3,021
 Corporate debt securities
 
0
0
0
 
1
2,737
136
 
1
2,737
136
 Government agency collateralized mortgage obligations
 
0
0
0
 
1
6
0
 
1
6
0
    Total available-for-sale/investment portfolio
 
283
$1,044,846
$26,762
 
41
$28,647
$2,123
 
324
$1,073,493
$28,885

As of December 31, 2013
 
    Less than 12 Months 12 Months or Longer Total 
       
Gross
     
Gross
     
Gross
     
Fair
Unrealized
   
Fair
Unrealized
   
Fair
Unrealized
(000's omitted)
 
#
Value
Losses
 
#
Value
Losses
 
#
Value
Losses
                         
Available-for-Sale Portfolio:
                       
 U.S. Treasury and agency obligations
 
43
$1,181,214
$41,304
 
0
$0
$0
 
43
$1,181,214
$41,304
 Obligations of state and political subdivisions
 
302
195,526
11,774
 
9
4,974
604
 
311
200,500
12,378
 Government agency mortgage-backed securities
 
43
68,917
3,262
 
6
8,713
851
 
49
77,630
4,113
 Corporate debt securities
 
1
3,026
31
 
1
2,703
187
 
2
5,729
218
 Government agency collateralized mortgage obligations
 
1
2,601
93
 
1
7
0
 
2
2,608
93
    Total available-for-sale/investment portfolio
 
390
$1,451,284
$56,464
 
17
$16,397
$1,642
 
407
$1,467,681
$58,106

Amortized cost and estimated fair value of debt securities by contractual maturity
The amortized cost and estimated fair value of debt securities at March 31, 2014, by contractual maturity, are shown below. Expected maturities will differ from contractual maturities because borrowers may have the right to call or prepay obligations with or without call or prepayment penalties.  Securities not due at a single maturity date are shown separately.

   
Available-for-Sale
   
Amortized
Fair
(000's omitted)
 
Cost
Value
Due in one year or less
 
$61,273
$62,343
Due after one through five years
 
164,805
169,923
Due after five years through ten years
 
1,677,793
1,670,155
Due after ten years
 
287,047
290,993
     Subtotal
 
2,190,918
2,193,414
Government agency mortgage-backed securities
 
248,785
254,850
Government agency collateralized mortgage obligations
 
20,777
21,589
     Total
 
$2,460,480
$2,469,853